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1# Changelog
2
3All notable changes to this project will be documented in this file.
4See [Changelog Update](doc/changelog_update.md) if you want to update this
5document.
6
7## Unreleased / In Rust Nightly
8
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9[7c7683c...master](https://github.com/rust-lang/rust-clippy/compare/7c7683c...master)
10
11## Rust 1.53
12
13Current beta, release 2021-06-17
14
15[6ed6f1e...7c7683c](https://github.com/rust-lang/rust-clippy/compare/6ed6f1e...7c7683c)
16
17### New Lints
18
19* [`option_filter_map`]
20 [#6342](https://github.com/rust-lang/rust-clippy/pull/6342)
21* [`branches_sharing_code`]
22 [#6463](https://github.com/rust-lang/rust-clippy/pull/6463)
23* [`needless_for_each`]
24 [#6706](https://github.com/rust-lang/rust-clippy/pull/6706)
25* [`if_then_some_else_none`]
26 [#6859](https://github.com/rust-lang/rust-clippy/pull/6859)
27* [`non_octal_unix_permissions`]
28 [#7001](https://github.com/rust-lang/rust-clippy/pull/7001)
29* [`unnecessary_self_imports`]
30 [#7072](https://github.com/rust-lang/rust-clippy/pull/7072)
31* [`bool_assert_comparison`]
32 [#7083](https://github.com/rust-lang/rust-clippy/pull/7083)
33* [`cloned_instead_of_copied`]
34 [#7098](https://github.com/rust-lang/rust-clippy/pull/7098)
35* [`flat_map_option`]
36 [#7101](https://github.com/rust-lang/rust-clippy/pull/7101)
37
38### Moves and Deprecations
39
40* Deprecate [`filter_map`] lint
41 [#7059](https://github.com/rust-lang/rust-clippy/pull/7059)
42* Move [`transmute_ptr_to_ptr`] to `pedantic`
43 [#7102](https://github.com/rust-lang/rust-clippy/pull/7102)
44
45### Enhancements
46
47* [`mem_replace_with_default`]: Also lint on common std constructors
48 [#6820](https://github.com/rust-lang/rust-clippy/pull/6820)
49* [`wrong_self_convention`]: Also lint on `to_*_mut` methods
50 [#6828](https://github.com/rust-lang/rust-clippy/pull/6828)
51* [`wildcard_enum_match_arm`], [`match_wildcard_for_single_variants`]:
52 [#6863](https://github.com/rust-lang/rust-clippy/pull/6863)
53 * Attempt to find a common path prefix in suggestion
54 * Don't lint on `Option` and `Result`
55 * Consider `Self` prefix
56* [`explicit_deref_methods`]: Also lint on chained `deref` calls
57 [#6865](https://github.com/rust-lang/rust-clippy/pull/6865)
58* [`or_fun_call`]: Also lint on `unsafe` blocks
59 [#6928](https://github.com/rust-lang/rust-clippy/pull/6928)
60* [`vec_box`], [`linkedlist`], [`option_option`]: Also lint in `const` and
61 `static` items [#6938](https://github.com/rust-lang/rust-clippy/pull/6938)
62* [`search_is_some`]: Also check for `is_none`
63 [#6942](https://github.com/rust-lang/rust-clippy/pull/6942)
64* [`string_lit_as_bytes`]: Also lint on `into_bytes`
65 [#6959](https://github.com/rust-lang/rust-clippy/pull/6959)
66* [`len_without_is_empty`]: Also lint if function signatures of `len` and
67 `is_empty` don't match
68 [#6980](https://github.com/rust-lang/rust-clippy/pull/6980)
69* [`redundant_pattern_matching`]: Also lint if the pattern is a `&` pattern
70 [#6991](https://github.com/rust-lang/rust-clippy/pull/6991)
71* [`clone_on_copy`]: Also lint on chained method calls taking `self` by value
72 [#7000](https://github.com/rust-lang/rust-clippy/pull/7000)
73* [`missing_panics_doc`]: Also lint on `assert_eq!` and `assert_ne!`
74 [#7029](https://github.com/rust-lang/rust-clippy/pull/7029)
75* [`needless_return`]: Also lint in `async` functions
76 [#7067](https://github.com/rust-lang/rust-clippy/pull/7067)
77* [`unused_io_amount`]: Also lint on expressions like `_.read().ok()?`
78 [#7100](https://github.com/rust-lang/rust-clippy/pull/7100)
79* [`iter_cloned_collect`]: Also lint on large arrays, since const-generics are
80 now stable [#7138](https://github.com/rust-lang/rust-clippy/pull/7138)
81
82### False Positive Fixes
83
84* [`upper_case_acronyms`]: No longer lints on public items
85 [#6805](https://github.com/rust-lang/rust-clippy/pull/6805)
86* [`suspicious_map`]: No longer lints when side effects may occur inside the
87 `map` call [#6831](https://github.com/rust-lang/rust-clippy/pull/6831)
88* [`manual_map`], [`manual_unwrap_or`]: No longer lints in `const` functions
89 [#6917](https://github.com/rust-lang/rust-clippy/pull/6917)
90* [`wrong_self_convention`]: Now respects `Copy` types
91 [#6924](https://github.com/rust-lang/rust-clippy/pull/6924)
92* [`needless_question_mark`]: No longer lints if the `?` and the `Some(..)` come
93 from different macro contexts [#6935](https://github.com/rust-lang/rust-clippy/pull/6935)
94* [`map_entry`]: Better detect if the entry API can be used
95 [#6937](https://github.com/rust-lang/rust-clippy/pull/6937)
96* [`or_fun_call`]: No longer lints on some `len` function calls
97 [#6950](https://github.com/rust-lang/rust-clippy/pull/6950)
98* [`new_ret_no_self`]: No longer lints when `Self` is returned with different
99 generic arguments [#6952](https://github.com/rust-lang/rust-clippy/pull/6952)
100* [`upper_case_acronyms`]: No longer lints on public items
101 [#6981](https://github.com/rust-lang/rust-clippy/pull/6981)
102* [`explicit_into_iter_loop`]: Only lint when `into_iter` is an implementation
103 of `IntoIterator` [#6982](https://github.com/rust-lang/rust-clippy/pull/6982)
104* [`expl_impl_clone_on_copy`]: Take generic constraints into account before
105 suggesting to use `derive` instead
106 [#6993](https://github.com/rust-lang/rust-clippy/pull/6993)
107* [`missing_panics_doc`]: No longer lints when only debug-assertions are used
108 [#6996](https://github.com/rust-lang/rust-clippy/pull/6996)
109* [`clone_on_copy`]: Only lint when using the `Clone` trait
110 [#7000](https://github.com/rust-lang/rust-clippy/pull/7000)
111* [`wrong_self_convention`]: No longer lints inside a trait implementation
112 [#7002](https://github.com/rust-lang/rust-clippy/pull/7002)
113* [`redundant_clone`]: No longer lints when the cloned value is modified while
114 the clone is in use
115 [#7011](https://github.com/rust-lang/rust-clippy/pull/7011)
116* [`same_item_push`]: No longer lints if the `Vec` is used in the loop body
117 [#7018](https://github.com/rust-lang/rust-clippy/pull/7018)
118* [`cargo_common_metadata`]: Remove author requirement
119 [#7026](https://github.com/rust-lang/rust-clippy/pull/7026)
120* [`panic_in_result_fn`]: No longer lints on `debug_assert` family
121 [#7060](https://github.com/rust-lang/rust-clippy/pull/7060)
122* [`panic`]: No longer wrongfully lints on `debug_assert` with message
123 [#7063](https://github.com/rust-lang/rust-clippy/pull/7063)
124* [`wrong_self_convention`]: No longer lints in trait implementations where no
125 `self` is involved [#7064](https://github.com/rust-lang/rust-clippy/pull/7064)
126* [`missing_const_for_fn`]: No longer lints when unstable `const` function is
127 involved [#7076](https://github.com/rust-lang/rust-clippy/pull/7076)
128* [`suspicious_else_formatting`]: Allow Allman style braces
129 [#7087](https://github.com/rust-lang/rust-clippy/pull/7087)
130* [`inconsistent_struct_constructor`]: No longer lints in macros
131 [#7097](https://github.com/rust-lang/rust-clippy/pull/7097)
132* [`single_component_path_imports`]: No longer lints on macro re-exports
133 [#7120](https://github.com/rust-lang/rust-clippy/pull/7120)
134
135### Suggestion Fixes/Improvements
136
137* [`redundant_pattern_matching`]: Add a note when applying this lint would
138 change the drop order
139 [#6568](https://github.com/rust-lang/rust-clippy/pull/6568)
140* [`write_literal`], [`print_literal`]: Add auto-applicable suggestion
141 [#6821](https://github.com/rust-lang/rust-clippy/pull/6821)
142* [`manual_map`]: Fix suggestion for complex `if let ... else` chains
143 [#6856](https://github.com/rust-lang/rust-clippy/pull/6856)
144* [`inconsistent_struct_constructor`]: Make lint description and message clearer
145 [#6892](https://github.com/rust-lang/rust-clippy/pull/6892)
146* [`map_entry`]: Now suggests `or_insert`, `insert_with` or `match _.entry(_)`
147 as appropriate [#6937](https://github.com/rust-lang/rust-clippy/pull/6937)
148* [`manual_flatten`]: Suggest to insert `copied` if necessary
149 [#6962](https://github.com/rust-lang/rust-clippy/pull/6962)
150* [`redundant_slicing`]: Fix suggestion when a re-borrow might be required or
151 when the value is from a macro call
152 [#6975](https://github.com/rust-lang/rust-clippy/pull/6975)
153* [`match_wildcard_for_single_variants`]: Fix suggestion for hidden variant
154 [#6988](https://github.com/rust-lang/rust-clippy/pull/6988)
155* [`clone_on_copy`]: Correct suggestion when the cloned value is a macro call
156 [#7000](https://github.com/rust-lang/rust-clippy/pull/7000)
157* [`manual_map`]: Fix suggestion at the end of an if chain
158 [#7004](https://github.com/rust-lang/rust-clippy/pull/7004)
159* Fix needless parenthesis output in multiple lint suggestions
160 [#7013](https://github.com/rust-lang/rust-clippy/pull/7013)
161* [`needless_collect`]: Better explanation in the lint message
162 [#7020](https://github.com/rust-lang/rust-clippy/pull/7020)
163* [`useless_vec`]: Now considers mutability
164 [#7036](https://github.com/rust-lang/rust-clippy/pull/7036)
165* [`useless_format`]: Wrap the content in braces if necessary
166 [#7092](https://github.com/rust-lang/rust-clippy/pull/7092)
167* [`single_match`]: Don't suggest an equality check for types which don't
168 implement `PartialEq`
169 [#7093](https://github.com/rust-lang/rust-clippy/pull/7093)
170* [`from_over_into`]: Mention type in help message
171 [#7099](https://github.com/rust-lang/rust-clippy/pull/7099)
172* [`manual_unwrap_or`]: Fix invalid code suggestion due to a macro call
173 [#7136](https://github.com/rust-lang/rust-clippy/pull/7136)
174
175### ICE Fixes
176
177* [`macro_use_imports`]
178 [#7022](https://github.com/rust-lang/rust-clippy/pull/7022)
179* [`missing_panics_doc`]
180 [#7034](https://github.com/rust-lang/rust-clippy/pull/7034)
181* [`tabs_in_doc_comments`]
182 [#7039](https://github.com/rust-lang/rust-clippy/pull/7039)
183* [`missing_const_for_fn`]
184 [#7128](https://github.com/rust-lang/rust-clippy/pull/7128)
185
186### Others
187
188* [Clippy's lint
189 list](https://rust-lang.github.io/rust-clippy/master/index.html) now supports
190 themes [#7030](https://github.com/rust-lang/rust-clippy/pull/7030)
191* Lints that were uplifted to `rustc` now mention the new `rustc` name in the
192 deprecation warning
193 [#7056](https://github.com/rust-lang/rust-clippy/pull/7056)
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194
195## Rust 1.52
196
17df50a5 197Current stable, released 2021-05-06
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198
199[3e41797...6ed6f1e](https://github.com/rust-lang/rust-clippy/compare/3e41797...6ed6f1e)
200
201### New Lints
202
203* [`from_str_radix_10`]
204 [#6717](https://github.com/rust-lang/rust-clippy/pull/6717)
205* [`implicit_clone`]
206 [#6730](https://github.com/rust-lang/rust-clippy/pull/6730)
207* [`semicolon_if_nothing_returned`]
208 [#6681](https://github.com/rust-lang/rust-clippy/pull/6681)
209* [`manual_flatten`]
210 [#6646](https://github.com/rust-lang/rust-clippy/pull/6646)
211* [`inconsistent_struct_constructor`]
212 [#6769](https://github.com/rust-lang/rust-clippy/pull/6769)
213* [`iter_count`]
214 [#6791](https://github.com/rust-lang/rust-clippy/pull/6791)
215* [`default_numeric_fallback`]
216 [#6662](https://github.com/rust-lang/rust-clippy/pull/6662)
217* [`bytes_nth`]
218 [#6695](https://github.com/rust-lang/rust-clippy/pull/6695)
219* [`filter_map_identity`]
220 [#6685](https://github.com/rust-lang/rust-clippy/pull/6685)
221* [`manual_map`]
222 [#6573](https://github.com/rust-lang/rust-clippy/pull/6573)
223
224### Moves and Deprecations
225
226* Moved [`upper_case_acronyms`] to `pedantic`
227 [#6775](https://github.com/rust-lang/rust-clippy/pull/6775)
228* Moved [`manual_map`] to `nursery`
229 [#6796](https://github.com/rust-lang/rust-clippy/pull/6796)
230* Moved [`unnecessary_wraps`] to `pedantic`
231 [#6765](https://github.com/rust-lang/rust-clippy/pull/6765)
232* Moved [`trivial_regex`] to `nursery`
233 [#6696](https://github.com/rust-lang/rust-clippy/pull/6696)
234* Moved [`naive_bytecount`] to `pedantic`
235 [#6825](https://github.com/rust-lang/rust-clippy/pull/6825)
236* Moved [`upper_case_acronyms`] to `style`
237 [#6788](https://github.com/rust-lang/rust-clippy/pull/6788)
238* Moved [`manual_map`] to `style`
239 [#6801](https://github.com/rust-lang/rust-clippy/pull/6801)
240
241### Enhancements
242
243* [`disallowed_method`]: Now supports functions in addition to methods
244 [#6674](https://github.com/rust-lang/rust-clippy/pull/6674)
245* [`upper_case_acronyms`]: Added a new configuration `upper-case-acronyms-aggressive` to
246 trigger the lint if there is more than one uppercase character next to each other
247 [#6788](https://github.com/rust-lang/rust-clippy/pull/6788)
248* [`collapsible_match`]: Now supports block comparison with different value names
249 [#6754](https://github.com/rust-lang/rust-clippy/pull/6754)
250* [`unnecessary_wraps`]: Will now suggest removing unnecessary wrapped return unit type, like `Option<()>`
251 [#6665](https://github.com/rust-lang/rust-clippy/pull/6665)
252* Improved value usage detection in closures
253 [#6698](https://github.com/rust-lang/rust-clippy/pull/6698)
254
255### False Positive Fixes
256
257* [`use_self`]: No longer lints in macros
258 [#6833](https://github.com/rust-lang/rust-clippy/pull/6833)
259* [`use_self`]: Fixed multiple false positives for: generics, associated types and derive implementations
260 [#6179](https://github.com/rust-lang/rust-clippy/pull/6179)
261* [`missing_inline_in_public_items`]: No longer lints for procedural macros
262 [#6814](https://github.com/rust-lang/rust-clippy/pull/6814)
263* [`inherent_to_string`]: No longer lints on functions with function generics
264 [#6771](https://github.com/rust-lang/rust-clippy/pull/6771)
265* [`doc_markdown`]: Add `OpenDNS` to the default configuration as an allowed identifier
266 [#6783](https://github.com/rust-lang/rust-clippy/pull/6783)
267* [`missing_panics_doc`]: No longer lints on [`unreachable!`](https://doc.rust-lang.org/std/macro.unreachable.html)
268 [#6700](https://github.com/rust-lang/rust-clippy/pull/6700)
269* [`collapsible_if`]: No longer lints on if statements with attributes
270 [#6701](https://github.com/rust-lang/rust-clippy/pull/6701)
271* [`match_same_arms`]: Only considers empty blocks as equal if the tokens contained are the same
272 [#6843](https://github.com/rust-lang/rust-clippy/pull/6843)
273* [`redundant_closure`]: Now ignores macros
274 [#6871](https://github.com/rust-lang/rust-clippy/pull/6871)
275* [`manual_map`]: Fixed false positives when control flow statements like `return`, `break` etc. are used
276 [#6801](https://github.com/rust-lang/rust-clippy/pull/6801)
277* [`vec_init_then_push`]: Fixed false positives for loops and if statements
278 [#6697](https://github.com/rust-lang/rust-clippy/pull/6697)
279* [`len_without_is_empty`]: Will now consider multiple impl blocks and `#[allow]` on
280 the `len` method as well as the type definition.
281 [#6853](https://github.com/rust-lang/rust-clippy/pull/6853)
282* [`let_underscore_drop`]: Only lints on types which implement `Drop`
283 [#6682](https://github.com/rust-lang/rust-clippy/pull/6682)
284* [`unit_arg`]: No longer lints on unit arguments when they come from a path expression.
285 [#6601](https://github.com/rust-lang/rust-clippy/pull/6601)
17df50a5 286* [`cargo_common_metadata`]: No longer lints if
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287 [`publish = false`](https://doc.rust-lang.org/cargo/reference/manifest.html#the-publish-field)
288 is defined in the manifest
289 [#6650](https://github.com/rust-lang/rust-clippy/pull/6650)
290
291### Suggestion Fixes/Improvements
292
293* [`collapsible_match`]: Fixed lint message capitalization
294 [#6766](https://github.com/rust-lang/rust-clippy/pull/6766)
295* [`or_fun_call`]: Improved suggestions for `or_insert(vec![])`
296 [#6790](https://github.com/rust-lang/rust-clippy/pull/6790)
297* [`manual_map`]: No longer expands macros in the suggestions
298 [#6801](https://github.com/rust-lang/rust-clippy/pull/6801)
299* Aligned Clippy's lint messages with the rustc dev guide
300 [#6787](https://github.com/rust-lang/rust-clippy/pull/6787)
301
302### ICE Fixes
303
304* [`zero_sized_map_values`]
305 [#6866](https://github.com/rust-lang/rust-clippy/pull/6866)
306
307### Documentation Improvements
308
309* [`useless_format`]: Improved the documentation example
310 [#6854](https://github.com/rust-lang/rust-clippy/pull/6854)
17df50a5 311* Clippy's [`README.md`]: Includes a new subsection on running Clippy as a rustc wrapper
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312 [#6782](https://github.com/rust-lang/rust-clippy/pull/6782)
313
314### Others
17df50a5 315* Running `cargo clippy` after `cargo check` now works as expected
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316 (`cargo clippy` and `cargo check` no longer shares the same build cache)
317 [#6687](https://github.com/rust-lang/rust-clippy/pull/6687)
318* Cargo now re-runs Clippy if arguments after `--` provided to `cargo clippy` are changed.
319 [#6834](https://github.com/rust-lang/rust-clippy/pull/6834)
320* Extracted Clippy's `utils` module into the new `clippy_utils` crate
321 [#6756](https://github.com/rust-lang/rust-clippy/pull/6756)
322* Clippy lintcheck tool improvements
323 [#6800](https://github.com/rust-lang/rust-clippy/pull/6800)
324 [#6735](https://github.com/rust-lang/rust-clippy/pull/6735)
325 [#6764](https://github.com/rust-lang/rust-clippy/pull/6764)
326 [#6708](https://github.com/rust-lang/rust-clippy/pull/6708)
327 [#6780](https://github.com/rust-lang/rust-clippy/pull/6780)
328 [#6686](https://github.com/rust-lang/rust-clippy/pull/6686)
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329
330## Rust 1.51
331
17df50a5 332Released 2021-03-25
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333
334[4911ab1...3e41797](https://github.com/rust-lang/rust-clippy/compare/4911ab1...3e41797)
335
336### New Lints
337
338* [`upper_case_acronyms`]
339 [#6475](https://github.com/rust-lang/rust-clippy/pull/6475)
340* [`from_over_into`] [#6476](https://github.com/rust-lang/rust-clippy/pull/6476)
341* [`case_sensitive_file_extension_comparisons`]
342 [#6500](https://github.com/rust-lang/rust-clippy/pull/6500)
343* [`needless_question_mark`]
344 [#6507](https://github.com/rust-lang/rust-clippy/pull/6507)
345* [`missing_panics_doc`]
346 [#6523](https://github.com/rust-lang/rust-clippy/pull/6523)
347* [`redundant_slicing`]
348 [#6528](https://github.com/rust-lang/rust-clippy/pull/6528)
349* [`vec_init_then_push`]
350 [#6538](https://github.com/rust-lang/rust-clippy/pull/6538)
351* [`ptr_as_ptr`] [#6542](https://github.com/rust-lang/rust-clippy/pull/6542)
352* [`collapsible_else_if`] (split out from `collapsible_if`)
353 [#6544](https://github.com/rust-lang/rust-clippy/pull/6544)
354* [`inspect_for_each`] [#6577](https://github.com/rust-lang/rust-clippy/pull/6577)
355* [`manual_filter_map`]
356 [#6591](https://github.com/rust-lang/rust-clippy/pull/6591)
357* [`exhaustive_enums`]
358 [#6617](https://github.com/rust-lang/rust-clippy/pull/6617)
359* [`exhaustive_structs`]
360 [#6617](https://github.com/rust-lang/rust-clippy/pull/6617)
361
362### Moves and Deprecations
363
364* Replace [`find_map`] with [`manual_find_map`]
365 [#6591](https://github.com/rust-lang/rust-clippy/pull/6591)
cdc7bbd5 366* `unknown_clippy_lints` Now integrated in the `unknown_lints` rustc lint
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367 [#6653](https://github.com/rust-lang/rust-clippy/pull/6653)
368
369### Enhancements
370
371* [`ptr_arg`] Now also suggests to use `&Path` instead of `&PathBuf`
372 [#6506](https://github.com/rust-lang/rust-clippy/pull/6506)
373* [`cast_ptr_alignment`] Also lint when the `pointer::cast` method is used
374 [#6557](https://github.com/rust-lang/rust-clippy/pull/6557)
375* [`collapsible_match`] Now also deals with `&` and `*` operators in the `match`
376 scrutinee [#6619](https://github.com/rust-lang/rust-clippy/pull/6619)
377
378### False Positive Fixes
379
380* [`similar_names`] Ignore underscore prefixed names
381 [#6403](https://github.com/rust-lang/rust-clippy/pull/6403)
382* [`print_literal`] and [`write_literal`] No longer lint numeric literals
383 [#6408](https://github.com/rust-lang/rust-clippy/pull/6408)
384* [`large_enum_variant`] No longer lints in external macros
385 [#6485](https://github.com/rust-lang/rust-clippy/pull/6485)
386* [`empty_enum`] Only lint if `never_type` feature is enabled
387 [#6513](https://github.com/rust-lang/rust-clippy/pull/6513)
388* [`field_reassign_with_default`] No longer lints in macros
389 [#6553](https://github.com/rust-lang/rust-clippy/pull/6553)
390* [`size_of_in_element_count`] No longer lints when dividing by element size
391 [#6578](https://github.com/rust-lang/rust-clippy/pull/6578)
392* [`needless_return`] No longer lints in macros
393 [#6586](https://github.com/rust-lang/rust-clippy/pull/6586)
394* [`match_overlapping_arm`] No longer lint when first arm is completely included
395 in second arm [#6603](https://github.com/rust-lang/rust-clippy/pull/6603)
396* [`doc_markdown`] Add `WebGL` to the default configuration as an allowed
397 identifier [#6605](https://github.com/rust-lang/rust-clippy/pull/6605)
398
399### Suggestion Fixes/Improvements
400
401* [`field_reassign_with_default`] Don't expand macro in lint suggestion
402 [#6531](https://github.com/rust-lang/rust-clippy/pull/6531)
403* [`match_like_matches_macro`] Strip references in suggestion
404 [#6532](https://github.com/rust-lang/rust-clippy/pull/6532)
405* [`single_match`] Suggest `if` over `if let` when possible
406 [#6574](https://github.com/rust-lang/rust-clippy/pull/6574)
407* [`ref_in_deref`] Use parentheses correctly in suggestion
408 [#6609](https://github.com/rust-lang/rust-clippy/pull/6609)
409* [`stable_sort_primitive`] Clarify error message
410 [#6611](https://github.com/rust-lang/rust-clippy/pull/6611)
411
412### ICE Fixes
413
414* [`zero_sized_map_values`]
415 [#6582](https://github.com/rust-lang/rust-clippy/pull/6582)
416
417### Documentation Improvements
418
419* Improve search performance on the Clippy website and make it possible to
420 directly search for lints on the GitHub issue tracker
421 [#6483](https://github.com/rust-lang/rust-clippy/pull/6483)
422* Clean up `README.md` by removing outdated paragraph
423 [#6488](https://github.com/rust-lang/rust-clippy/pull/6488)
424* [`await_holding_refcell_ref`] and [`await_holding_lock`]
425 [#6585](https://github.com/rust-lang/rust-clippy/pull/6585)
426* [`as_conversions`] [#6608](https://github.com/rust-lang/rust-clippy/pull/6608)
427
428### Others
429
430* Clippy now has a [Roadmap] for 2021. If you like to get involved in a bigger
431 project, take a look at the [Roadmap project page]. All issues listed there
432 are actively mentored
433 [#6462](https://github.com/rust-lang/rust-clippy/pull/6462)
434* The Clippy version number now corresponds to the Rust version number
435 [#6526](https://github.com/rust-lang/rust-clippy/pull/6526)
436* Fix oversight which caused Clippy to lint deps in some environments, where
437 `CLIPPY_TESTS=true` was set somewhere
438 [#6575](https://github.com/rust-lang/rust-clippy/pull/6575)
439* Add `cargo dev-lintcheck` tool to the Clippy Dev Tool
440 [#6469](https://github.com/rust-lang/rust-clippy/pull/6469)
441
442[Roadmap]: https://github.com/rust-lang/rust-clippy/blob/master/doc/roadmap-2021.md
443[Roadmap project page]: https://github.com/rust-lang/rust-clippy/projects/3
444
445## Rust 1.50
446
cdc7bbd5 447Released 2021-02-11
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448
449[b20d4c1...4bd77a1](https://github.com/rust-lang/rust-clippy/compare/b20d4c1...4bd77a1)
450
451### New Lints
452
453* [`suspicious_operation_groupings`] [#6086](https://github.com/rust-lang/rust-clippy/pull/6086)
454* [`size_of_in_element_count`] [#6394](https://github.com/rust-lang/rust-clippy/pull/6394)
455* [`unnecessary_wraps`] [#6070](https://github.com/rust-lang/rust-clippy/pull/6070)
456* [`let_underscore_drop`] [#6305](https://github.com/rust-lang/rust-clippy/pull/6305)
457* [`collapsible_match`] [#6402](https://github.com/rust-lang/rust-clippy/pull/6402)
458* [`redundant_else`] [#6330](https://github.com/rust-lang/rust-clippy/pull/6330)
459* [`zero_sized_map_values`] [#6218](https://github.com/rust-lang/rust-clippy/pull/6218)
460* [`print_stderr`] [#6367](https://github.com/rust-lang/rust-clippy/pull/6367)
461* [`string_from_utf8_as_bytes`] [#6134](https://github.com/rust-lang/rust-clippy/pull/6134)
462
463### Moves and Deprecations
464
465* Previously deprecated [`str_to_string`] and [`string_to_string`] have been un-deprecated
466 as `restriction` lints [#6333](https://github.com/rust-lang/rust-clippy/pull/6333)
cdc7bbd5 467* Deprecate `panic_params` lint. This is now available in rustc as `non_fmt_panic`
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468 [#6351](https://github.com/rust-lang/rust-clippy/pull/6351)
469* Move [`map_err_ignore`] to `restriction`
470 [#6416](https://github.com/rust-lang/rust-clippy/pull/6416)
471* Move [`await_holding_refcell_ref`] to `pedantic`
472 [#6354](https://github.com/rust-lang/rust-clippy/pull/6354)
473* Move [`await_holding_lock`] to `pedantic`
474 [#6354](https://github.com/rust-lang/rust-clippy/pull/6354)
475
476### Enhancements
477
478* Add the `unreadable-literal-lint-fractions` configuration to disable
479 the `unreadable_literal` lint for fractions
480 [#6421](https://github.com/rust-lang/rust-clippy/pull/6421)
481* [`clone_on_copy`]: Now shows the type in the lint message
482 [#6443](https://github.com/rust-lang/rust-clippy/pull/6443)
483* [`redundant_pattern_matching`]: Now also lints on `std::task::Poll`
484 [#6339](https://github.com/rust-lang/rust-clippy/pull/6339)
485* [`redundant_pattern_matching`]: Additionally also lints on `std::net::IpAddr`
486 [#6377](https://github.com/rust-lang/rust-clippy/pull/6377)
487* [`search_is_some`]: Now suggests `contains` instead of `find(foo).is_some()`
488 [#6119](https://github.com/rust-lang/rust-clippy/pull/6119)
489* [`clone_double_ref`]: Now prints the reference type in the lint message
490 [#6442](https://github.com/rust-lang/rust-clippy/pull/6442)
491* [`modulo_one`]: Now also lints on -1.
492 [#6360](https://github.com/rust-lang/rust-clippy/pull/6360)
493* [`empty_loop`]: Now lints no_std crates, too
494 [#6205](https://github.com/rust-lang/rust-clippy/pull/6205)
495* [`or_fun_call`]: Now also lints when indexing `HashMap` or `BTreeMap`
496 [#6267](https://github.com/rust-lang/rust-clippy/pull/6267)
497* [`wrong_self_convention`]: Now also lints in trait definitions
498 [#6316](https://github.com/rust-lang/rust-clippy/pull/6316)
499* [`needless_borrow`]: Print the type in the lint message
500 [#6449](https://github.com/rust-lang/rust-clippy/pull/6449)
501
502[msrv_readme]: https://github.com/rust-lang/rust-clippy#specifying-the-minimum-supported-rust-version
503
504### False Positive Fixes
505
506* [`manual_range_contains`]: No longer lints in `const fn`
507 [#6382](https://github.com/rust-lang/rust-clippy/pull/6382)
508* [`unnecessary_lazy_evaluations`]: No longer lints if closure argument is used
509 [#6370](https://github.com/rust-lang/rust-clippy/pull/6370)
510* [`match_single_binding`]: Now ignores cases with `#[cfg()]` macros
511 [#6435](https://github.com/rust-lang/rust-clippy/pull/6435)
512* [`match_like_matches_macro`]: No longer lints on arms with attributes
513 [#6290](https://github.com/rust-lang/rust-clippy/pull/6290)
514* [`map_clone`]: No longer lints with deref and clone
515 [#6269](https://github.com/rust-lang/rust-clippy/pull/6269)
516* [`map_clone`]: No longer lints in the case of &mut
517 [#6301](https://github.com/rust-lang/rust-clippy/pull/6301)
518* [`needless_update`]: Now ignores `non_exhaustive` structs
519 [#6464](https://github.com/rust-lang/rust-clippy/pull/6464)
520* [`needless_collect`]: No longer lints when a collect is needed multiple times
521 [#6313](https://github.com/rust-lang/rust-clippy/pull/6313)
522* [`unnecessary_cast`] No longer lints cfg-dependent types
523 [#6369](https://github.com/rust-lang/rust-clippy/pull/6369)
524* [`declare_interior_mutable_const`] and [`borrow_interior_mutable_const`]:
525 Both now ignore enums with frozen variants
526 [#6110](https://github.com/rust-lang/rust-clippy/pull/6110)
527* [`field_reassign_with_default`] No longer lint for private fields
528 [#6537](https://github.com/rust-lang/rust-clippy/pull/6537)
529
530
531### Suggestion Fixes/Improvements
532
533* [`vec_box`]: Provide correct type scope suggestion
534 [#6271](https://github.com/rust-lang/rust-clippy/pull/6271)
535* [`manual_range_contains`]: Give correct suggestion when using floats
536 [#6320](https://github.com/rust-lang/rust-clippy/pull/6320)
537* [`unnecessary_lazy_evaluations`]: Don't always mark suggestion as MachineApplicable
538 [#6272](https://github.com/rust-lang/rust-clippy/pull/6272)
539* [`manual_async_fn`]: Improve suggestion formatting
540 [#6294](https://github.com/rust-lang/rust-clippy/pull/6294)
541* [`unnecessary_cast`]: Fix incorrectly formatted float literal suggestion
542 [#6362](https://github.com/rust-lang/rust-clippy/pull/6362)
543
544### ICE Fixes
545
546* Fix a crash in [`from_iter_instead_of_collect`]
547 [#6304](https://github.com/rust-lang/rust-clippy/pull/6304)
548* Fix a silent crash when parsing doc comments in [`needless_doctest_main`]
549 [#6458](https://github.com/rust-lang/rust-clippy/pull/6458)
550
551### Documentation Improvements
552
553* The lint website search has been improved ([#6477](https://github.com/rust-lang/rust-clippy/pull/6477)):
554 * Searching for lints with dashes and spaces is possible now. For example
555 `missing-errors-doc` and `missing errors doc` are now valid aliases for lint names
556 * Improved fuzzy search in lint descriptions
557* Various README improvements
558 [#6287](https://github.com/rust-lang/rust-clippy/pull/6287)
559* Add known problems to [`comparison_chain`] documentation
560 [#6390](https://github.com/rust-lang/rust-clippy/pull/6390)
561* Fix example used in [`cargo_common_metadata`]
562 [#6293](https://github.com/rust-lang/rust-clippy/pull/6293)
563* Improve [`map_clone`] documentation
564 [#6340](https://github.com/rust-lang/rust-clippy/pull/6340)
565
566### Others
567
568* You can now tell Clippy about the MSRV your project supports. Please refer to
569 the specific README section to learn more about MSRV support [here][msrv_readme]
570 [#6201](https://github.com/rust-lang/rust-clippy/pull/6201)
571* Add `--no-deps` option to avoid running on path dependencies in workspaces
572 [#6188](https://github.com/rust-lang/rust-clippy/pull/6188)
573
574## Rust 1.49
575
576Released 2020-12-31
577
578[e636b88...b20d4c1](https://github.com/rust-lang/rust-clippy/compare/e636b88...b20d4c1)
579
580### New Lints
581
582* [`field_reassign_with_default`] [#5911](https://github.com/rust-lang/rust-clippy/pull/5911)
583* [`await_holding_refcell_ref`] [#6029](https://github.com/rust-lang/rust-clippy/pull/6029)
584* [`disallowed_method`] [#6081](https://github.com/rust-lang/rust-clippy/pull/6081)
585* [`inline_asm_x86_att_syntax`] [#6092](https://github.com/rust-lang/rust-clippy/pull/6092)
586* [`inline_asm_x86_intel_syntax`] [#6092](https://github.com/rust-lang/rust-clippy/pull/6092)
587* [`from_iter_instead_of_collect`] [#6101](https://github.com/rust-lang/rust-clippy/pull/6101)
588* [`mut_mutex_lock`] [#6103](https://github.com/rust-lang/rust-clippy/pull/6103)
589* [`single_element_loop`] [#6109](https://github.com/rust-lang/rust-clippy/pull/6109)
590* [`manual_unwrap_or`] [#6123](https://github.com/rust-lang/rust-clippy/pull/6123)
591* [`large_types_passed_by_value`] [#6135](https://github.com/rust-lang/rust-clippy/pull/6135)
592* [`result_unit_err`] [#6157](https://github.com/rust-lang/rust-clippy/pull/6157)
593* [`ref_option_ref`] [#6165](https://github.com/rust-lang/rust-clippy/pull/6165)
594* [`manual_range_contains`] [#6177](https://github.com/rust-lang/rust-clippy/pull/6177)
595* [`unusual_byte_groupings`] [#6183](https://github.com/rust-lang/rust-clippy/pull/6183)
596* [`comparison_to_empty`] [#6226](https://github.com/rust-lang/rust-clippy/pull/6226)
597* [`map_collect_result_unit`] [#6227](https://github.com/rust-lang/rust-clippy/pull/6227)
598* [`manual_ok_or`] [#6233](https://github.com/rust-lang/rust-clippy/pull/6233)
599
600### Moves and Deprecations
601
602* Rename `single_char_push_str` to [`single_char_add_str`]
603 [#6037](https://github.com/rust-lang/rust-clippy/pull/6037)
604* Rename `zero_width_space` to [`invisible_characters`]
605 [#6105](https://github.com/rust-lang/rust-clippy/pull/6105)
cdc7bbd5 606* Deprecate `drop_bounds` (uplifted)
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607 [#6111](https://github.com/rust-lang/rust-clippy/pull/6111)
608* Move [`string_lit_as_bytes`] to `nursery`
609 [#6117](https://github.com/rust-lang/rust-clippy/pull/6117)
610* Move [`rc_buffer`] to `restriction`
611 [#6128](https://github.com/rust-lang/rust-clippy/pull/6128)
612
613### Enhancements
614
615* [`manual_memcpy`]: Also lint when there are loop counters (and produce a
616 reliable suggestion)
617 [#5727](https://github.com/rust-lang/rust-clippy/pull/5727)
618* [`single_char_add_str`]: Also lint on `String::insert_str`
619 [#6037](https://github.com/rust-lang/rust-clippy/pull/6037)
620* [`invisible_characters`]: Also lint the characters `\u{AD}` and `\u{2060}`
621 [#6105](https://github.com/rust-lang/rust-clippy/pull/6105)
622* [`eq_op`]: Also lint on the `assert_*!` macro family
623 [#6167](https://github.com/rust-lang/rust-clippy/pull/6167)
624* [`items_after_statements`]: Also lint in local macro expansions
625 [#6176](https://github.com/rust-lang/rust-clippy/pull/6176)
626* [`unnecessary_cast`]: Also lint casts on integer and float literals
627 [#6187](https://github.com/rust-lang/rust-clippy/pull/6187)
628* [`manual_unwrap_or`]: Also lint `Result::unwrap_or`
629 [#6190](https://github.com/rust-lang/rust-clippy/pull/6190)
630* [`match_like_matches_macro`]: Also lint when `match` has more than two arms
631 [#6216](https://github.com/rust-lang/rust-clippy/pull/6216)
632* [`integer_arithmetic`]: Better handle `/` an `%` operators
633 [#6229](https://github.com/rust-lang/rust-clippy/pull/6229)
634
635### False Positive Fixes
636
637* [`needless_lifetimes`]: Bail out if the function has a `where` clause with the
638 lifetime [#5978](https://github.com/rust-lang/rust-clippy/pull/5978)
639* [`explicit_counter_loop`]: No longer lints, when loop counter is used after it
640 is incremented [#6076](https://github.com/rust-lang/rust-clippy/pull/6076)
641* [`or_fun_call`]: Revert changes addressing the handling of `const fn`
642 [#6077](https://github.com/rust-lang/rust-clippy/pull/6077)
643* [`needless_range_loop`]: No longer lints, when the iterable is used in the
644 range [#6102](https://github.com/rust-lang/rust-clippy/pull/6102)
645* [`inconsistent_digit_grouping`]: Fix bug when using floating point exponent
646 [#6104](https://github.com/rust-lang/rust-clippy/pull/6104)
647* [`mistyped_literal_suffixes`]: No longer lints on the fractional part of a
648 float (e.g. `713.32_64`)
649 [#6114](https://github.com/rust-lang/rust-clippy/pull/6114)
650* [`invalid_regex`]: No longer lint on unicode characters within `bytes::Regex`
651 [#6132](https://github.com/rust-lang/rust-clippy/pull/6132)
652* [`boxed_local`]: No longer lints on `extern fn` arguments
653 [#6133](https://github.com/rust-lang/rust-clippy/pull/6133)
654* [`needless_lifetimes`]: Fix regression, where lifetime is used in `where`
655 clause [#6198](https://github.com/rust-lang/rust-clippy/pull/6198)
656
657### Suggestion Fixes/Improvements
658
659* [`unnecessary_sort_by`]: Avoid dereferencing the suggested closure parameter
660 [#6078](https://github.com/rust-lang/rust-clippy/pull/6078)
661* [`needless_arbitrary_self_type`]: Correctly handle expanded code
662 [#6093](https://github.com/rust-lang/rust-clippy/pull/6093)
663* [`useless_format`]: Preserve raw strings in suggestion
664 [#6151](https://github.com/rust-lang/rust-clippy/pull/6151)
665* [`empty_loop`]: Suggest alternatives
666 [#6162](https://github.com/rust-lang/rust-clippy/pull/6162)
667* [`borrowed_box`]: Correctly add parentheses in suggestion
668 [#6200](https://github.com/rust-lang/rust-clippy/pull/6200)
669* [`unused_unit`]: Improve suggestion formatting
670 [#6247](https://github.com/rust-lang/rust-clippy/pull/6247)
671
672### Documentation Improvements
673
674* Some doc improvements:
675 * [`rc_buffer`] [#6090](https://github.com/rust-lang/rust-clippy/pull/6090)
676 * [`empty_loop`] [#6162](https://github.com/rust-lang/rust-clippy/pull/6162)
677* [`doc_markdown`]: Document problematic link text style
678 [#6107](https://github.com/rust-lang/rust-clippy/pull/6107)
679
680## Rust 1.48
681
682Released 2020-11-19
683
684[09bd400...e636b88](https://github.com/rust-lang/rust-clippy/compare/09bd400...e636b88)
685
686### New lints
687
688* [`self_assignment`] [#5894](https://github.com/rust-lang/rust-clippy/pull/5894)
689* [`unnecessary_lazy_evaluations`] [#5720](https://github.com/rust-lang/rust-clippy/pull/5720)
690* [`manual_strip`] [#6038](https://github.com/rust-lang/rust-clippy/pull/6038)
691* [`map_err_ignore`] [#5998](https://github.com/rust-lang/rust-clippy/pull/5998)
692* [`rc_buffer`] [#6044](https://github.com/rust-lang/rust-clippy/pull/6044)
693* [`to_string_in_display`] [#5831](https://github.com/rust-lang/rust-clippy/pull/5831)
694* `single_char_push_str` [#5881](https://github.com/rust-lang/rust-clippy/pull/5881)
695
696### Moves and Deprecations
697
698* Downgrade [`verbose_bit_mask`] to pedantic
699 [#6036](https://github.com/rust-lang/rust-clippy/pull/6036)
700
701### Enhancements
702
703* Extend [`precedence`] to handle chains of methods combined with unary negation
704 [#5928](https://github.com/rust-lang/rust-clippy/pull/5928)
705* [`useless_vec`]: add a configuration value for the maximum allowed size on the stack
706 [#5907](https://github.com/rust-lang/rust-clippy/pull/5907)
707* [`suspicious_arithmetic_impl`]: extend to implementations of `BitAnd`, `BitOr`, `BitXor`, `Rem`, `Shl`, and `Shr`
708 [#5884](https://github.com/rust-lang/rust-clippy/pull/5884)
709* [`invalid_atomic_ordering`]: detect misuse of `compare_exchange`, `compare_exchange_weak`, and `fetch_update`
710 [#6025](https://github.com/rust-lang/rust-clippy/pull/6025)
711* Avoid [`redundant_pattern_matching`] triggering in macros
712 [#6069](https://github.com/rust-lang/rust-clippy/pull/6069)
713* [`option_if_let_else`]: distinguish pure from impure `else` expressions
714 [#5937](https://github.com/rust-lang/rust-clippy/pull/5937)
715* [`needless_doctest_main`]: parse doctests instead of using textual search
716 [#5912](https://github.com/rust-lang/rust-clippy/pull/5912)
717* [`wildcard_imports`]: allow `prelude` to appear in any segment of an import
718 [#5929](https://github.com/rust-lang/rust-clippy/pull/5929)
719* Re-enable [`len_zero`] for ranges now that `range_is_empty` is stable
720 [#5961](https://github.com/rust-lang/rust-clippy/pull/5961)
721* [`option_as_ref_deref`]: catch fully-qualified calls to `Deref::deref` and `DerefMut::deref_mut`
722 [#5933](https://github.com/rust-lang/rust-clippy/pull/5933)
723
724### False Positive Fixes
725
726* [`useless_attribute`]: permit allowing [`wildcard_imports`] and [`enum_glob_use`]
727 [#5994](https://github.com/rust-lang/rust-clippy/pull/5994)
728* [`transmute_ptr_to_ptr`]: avoid suggesting dereferencing raw pointers in const contexts
729 [#5999](https://github.com/rust-lang/rust-clippy/pull/5999)
730* [`redundant_closure_call`]: take into account usages of the closure in nested functions and closures
731 [#5920](https://github.com/rust-lang/rust-clippy/pull/5920)
732* Fix false positive in [`borrow_interior_mutable_const`] when referencing a field behind a pointer
733 [#5949](https://github.com/rust-lang/rust-clippy/pull/5949)
734* [`doc_markdown`]: allow using "GraphQL" without backticks
735 [#5996](https://github.com/rust-lang/rust-clippy/pull/5996)
736* [`to_string_in_display`]: avoid linting when calling `to_string()` on anything that is not `self`
737 [#5971](https://github.com/rust-lang/rust-clippy/pull/5971)
738* [`indexing_slicing`] and [`out_of_bounds_indexing`] treat references to arrays as arrays
739 [#6034](https://github.com/rust-lang/rust-clippy/pull/6034)
740* [`should_implement_trait`]: ignore methods with lifetime parameters
741 [#5725](https://github.com/rust-lang/rust-clippy/pull/5725)
742* [`needless_return`]: avoid linting if a temporary borrows a local variable
743 [#5903](https://github.com/rust-lang/rust-clippy/pull/5903)
744* Restrict [`unnecessary_sort_by`] to non-reference, Copy types
745 [#6006](https://github.com/rust-lang/rust-clippy/pull/6006)
746* Avoid suggesting `from_bits`/`to_bits` in const contexts in [`transmute_int_to_float`]
747 [#5919](https://github.com/rust-lang/rust-clippy/pull/5919)
748* [`declare_interior_mutable_const`] and [`borrow_interior_mutable_const`]: improve detection of interior mutable types
749 [#6046](https://github.com/rust-lang/rust-clippy/pull/6046)
750
751### Suggestion Fixes/Improvements
752
753* [`let_and_return`]: add a cast to the suggestion when the return expression has adjustments
754 [#5946](https://github.com/rust-lang/rust-clippy/pull/5946)
755* [`useless_conversion`]: show the type in the error message
756 [#6035](https://github.com/rust-lang/rust-clippy/pull/6035)
757* [`unnecessary_mut_passed`]: discriminate between functions and methods in the error message
758 [#5892](https://github.com/rust-lang/rust-clippy/pull/5892)
759* [`float_cmp`] and [`float_cmp_const`]: change wording to make margin of error less ambiguous
760 [#6043](https://github.com/rust-lang/rust-clippy/pull/6043)
761* [`default_trait_access`]: do not use unnecessary type parameters in the suggestion
762 [#5993](https://github.com/rust-lang/rust-clippy/pull/5993)
763* [`collapsible_if`]: don't use expanded code in the suggestion
764 [#5992](https://github.com/rust-lang/rust-clippy/pull/5992)
765* Do not suggest empty format strings in [`print_with_newline`] and [`write_with_newline`]
766 [#6042](https://github.com/rust-lang/rust-clippy/pull/6042)
767* [`unit_arg`]: improve the readability of the suggestion
768 [#5931](https://github.com/rust-lang/rust-clippy/pull/5931)
769* [`stable_sort_primitive`]: print the type that is being sorted in the lint message
770 [#5935](https://github.com/rust-lang/rust-clippy/pull/5935)
771* Show line count and max lines in [`too_many_lines`] lint message
772 [#6009](https://github.com/rust-lang/rust-clippy/pull/6009)
773* Keep parentheses in the suggestion of [`useless_conversion`] where applicable
774 [#5900](https://github.com/rust-lang/rust-clippy/pull/5900)
775* [`option_map_unit_fn`] and [`result_map_unit_fn`]: print the unit type `()` explicitly
776 [#6024](https://github.com/rust-lang/rust-clippy/pull/6024)
777* [`redundant_allocation`]: suggest replacing `Rc<Box<T>>` with `Rc<T>`
778 [#5899](https://github.com/rust-lang/rust-clippy/pull/5899)
779* Make lint messages adhere to rustc dev guide conventions
780 [#5893](https://github.com/rust-lang/rust-clippy/pull/5893)
781
782### ICE Fixes
783
784* Fix ICE in [`repeat_once`]
785 [#5948](https://github.com/rust-lang/rust-clippy/pull/5948)
786
787### Documentation Improvements
788
789* [`mutable_key_type`]: explain potential for false positives when the interior mutable type is not accessed in the `Hash` implementation
790 [#6019](https://github.com/rust-lang/rust-clippy/pull/6019)
791* [`unnecessary_mut_passed`]: fix typo
792 [#5913](https://github.com/rust-lang/rust-clippy/pull/5913)
793* Add example of false positive to [`ptr_arg`] docs.
794 [#5885](https://github.com/rust-lang/rust-clippy/pull/5885)
795* [`box_vec`], [`vec_box`] and [`borrowed_box`]: add link to the documentation of `Box`
796 [#6023](https://github.com/rust-lang/rust-clippy/pull/6023)
797
798## Rust 1.47
799
800Released 2020-10-08
801
802[c2c07fa...09bd400](https://github.com/rust-lang/rust-clippy/compare/c2c07fa...09bd400)
803
804### New lints
805
806* [`derive_ord_xor_partial_ord`] [#5848](https://github.com/rust-lang/rust-clippy/pull/5848)
807* [`trait_duplication_in_bounds`] [#5852](https://github.com/rust-lang/rust-clippy/pull/5852)
808* [`map_identity`] [#5694](https://github.com/rust-lang/rust-clippy/pull/5694)
809* [`unit_return_expecting_ord`] [#5737](https://github.com/rust-lang/rust-clippy/pull/5737)
810* [`pattern_type_mismatch`] [#4841](https://github.com/rust-lang/rust-clippy/pull/4841)
811* [`repeat_once`] [#5773](https://github.com/rust-lang/rust-clippy/pull/5773)
812* [`same_item_push`] [#5825](https://github.com/rust-lang/rust-clippy/pull/5825)
813* [`needless_arbitrary_self_type`] [#5869](https://github.com/rust-lang/rust-clippy/pull/5869)
814* [`match_like_matches_macro`] [#5769](https://github.com/rust-lang/rust-clippy/pull/5769)
815* [`stable_sort_primitive`] [#5809](https://github.com/rust-lang/rust-clippy/pull/5809)
816* [`blanket_clippy_restriction_lints`] [#5750](https://github.com/rust-lang/rust-clippy/pull/5750)
817* [`option_if_let_else`] [#5301](https://github.com/rust-lang/rust-clippy/pull/5301)
818
819### Moves and Deprecations
820
821* Deprecate [`regex_macro`] lint
822 [#5760](https://github.com/rust-lang/rust-clippy/pull/5760)
823* Move [`range_minus_one`] to `pedantic`
824 [#5752](https://github.com/rust-lang/rust-clippy/pull/5752)
825
826### Enhancements
827
828* Improve [`needless_collect`] by catching `collect` calls followed by `iter` or `into_iter` calls
829 [#5837](https://github.com/rust-lang/rust-clippy/pull/5837)
830* [`panic`], [`todo`], [`unimplemented`] and [`unreachable`] now detect calls with formatting
831 [#5811](https://github.com/rust-lang/rust-clippy/pull/5811)
832* Detect more cases of [`suboptimal_flops`] and [`imprecise_flops`]
833 [#5443](https://github.com/rust-lang/rust-clippy/pull/5443)
834* Handle asymmetrical implementations of `PartialEq` in [`cmp_owned`]
835 [#5701](https://github.com/rust-lang/rust-clippy/pull/5701)
836* Make it possible to allow [`unsafe_derive_deserialize`]
837 [#5870](https://github.com/rust-lang/rust-clippy/pull/5870)
838* Catch `ord.min(a).max(b)` where a < b in [`min_max`]
839 [#5871](https://github.com/rust-lang/rust-clippy/pull/5871)
840* Make [`clone_on_copy`] suggestion machine applicable
841 [#5745](https://github.com/rust-lang/rust-clippy/pull/5745)
842* Enable [`len_zero`] on ranges now that `is_empty` is stable on them
843 [#5961](https://github.com/rust-lang/rust-clippy/pull/5961)
844
845### False Positive Fixes
846
847* Avoid triggering [`or_fun_call`] with const fns that take no arguments
848 [#5889](https://github.com/rust-lang/rust-clippy/pull/5889)
849* Fix [`redundant_closure_call`] false positive for closures that have multiple calls
850 [#5800](https://github.com/rust-lang/rust-clippy/pull/5800)
851* Don't lint cases involving `ManuallyDrop` in [`redundant_clone`]
852 [#5824](https://github.com/rust-lang/rust-clippy/pull/5824)
853* Treat a single expression the same as a single statement in the 2nd arm of a match in [`single_match_else`]
854 [#5771](https://github.com/rust-lang/rust-clippy/pull/5771)
855* Don't trigger [`unnested_or_patterns`] if the feature `or_patterns` is not enabled
856 [#5758](https://github.com/rust-lang/rust-clippy/pull/5758)
857* Avoid linting if key borrows in [`unnecessary_sort_by`]
858 [#5756](https://github.com/rust-lang/rust-clippy/pull/5756)
859* Consider `Try` impl for `Poll` when generating suggestions in [`try_err`]
860 [#5857](https://github.com/rust-lang/rust-clippy/pull/5857)
861* Take input lifetimes into account in `manual_async_fn`
862 [#5859](https://github.com/rust-lang/rust-clippy/pull/5859)
863* Fix multiple false positives in [`type_repetition_in_bounds`] and add a configuration option
864 [#5761](https://github.com/rust-lang/rust-clippy/pull/5761)
865* Limit the [`suspicious_arithmetic_impl`] lint to one binary operation
866 [#5820](https://github.com/rust-lang/rust-clippy/pull/5820)
867
868### Suggestion Fixes/Improvements
869
870* Improve readability of [`shadow_unrelated`] suggestion by truncating the RHS snippet
871 [#5788](https://github.com/rust-lang/rust-clippy/pull/5788)
872* Suggest `filter_map` instead of `flat_map` when mapping to `Option` in [`map_flatten`]
873 [#5846](https://github.com/rust-lang/rust-clippy/pull/5846)
874* Ensure suggestion is shown correctly for long method call chains in [`iter_nth_zero`]
875 [#5793](https://github.com/rust-lang/rust-clippy/pull/5793)
876* Drop borrow operator in suggestions of [`redundant_pattern_matching`]
877 [#5815](https://github.com/rust-lang/rust-clippy/pull/5815)
878* Add suggestion for [`iter_skip_next`]
879 [#5843](https://github.com/rust-lang/rust-clippy/pull/5843)
880* Improve [`collapsible_if`] fix suggestion
881 [#5732](https://github.com/rust-lang/rust-clippy/pull/5732)
882
883### ICE Fixes
884
885* Fix ICE caused by [`needless_collect`]
886 [#5877](https://github.com/rust-lang/rust-clippy/pull/5877)
887* Fix ICE caused by [`unnested_or_patterns`]
888 [#5784](https://github.com/rust-lang/rust-clippy/pull/5784)
889
890### Documentation Improvements
891
892* Fix grammar of [`await_holding_lock`] documentation
893 [#5748](https://github.com/rust-lang/rust-clippy/pull/5748)
894
895### Others
896
897* Make lints adhere to the rustc dev guide
898 [#5888](https://github.com/rust-lang/rust-clippy/pull/5888)
899
900## Rust 1.46
901
902Released 2020-08-27
903
904[7ea7cd1...c2c07fa](https://github.com/rust-lang/rust-clippy/compare/7ea7cd1...c2c07fa)
905
906### New lints
907
908* [`unnested_or_patterns`] [#5378](https://github.com/rust-lang/rust-clippy/pull/5378)
909* [`iter_next_slice`] [#5597](https://github.com/rust-lang/rust-clippy/pull/5597)
910* [`unnecessary_sort_by`] [#5623](https://github.com/rust-lang/rust-clippy/pull/5623)
911* [`vec_resize_to_zero`] [#5637](https://github.com/rust-lang/rust-clippy/pull/5637)
912
913### Moves and Deprecations
914
915* Move [`cast_ptr_alignment`] to pedantic [#5667](https://github.com/rust-lang/rust-clippy/pull/5667)
916
917### Enhancements
918
919* Improve [`mem_replace_with_uninit`] lint [#5695](https://github.com/rust-lang/rust-clippy/pull/5695)
920
921### False Positive Fixes
922
923* [`len_zero`]: Avoid linting ranges when the `range_is_empty` feature is not enabled
924 [#5656](https://github.com/rust-lang/rust-clippy/pull/5656)
925* [`let_and_return`]: Don't lint if a temporary borrow is involved
926 [#5680](https://github.com/rust-lang/rust-clippy/pull/5680)
927* [`reversed_empty_ranges`]: Avoid linting `N..N` in for loop arguments in
928 [#5692](https://github.com/rust-lang/rust-clippy/pull/5692)
929* [`if_same_then_else`]: Don't assume multiplication is always commutative
930 [#5702](https://github.com/rust-lang/rust-clippy/pull/5702)
931* [`blacklisted_name`]: Remove `bar` from the default configuration
932 [#5712](https://github.com/rust-lang/rust-clippy/pull/5712)
933* [`redundant_pattern_matching`]: Avoid suggesting non-`const fn` calls in const contexts
934 [#5724](https://github.com/rust-lang/rust-clippy/pull/5724)
935
936### Suggestion Fixes/Improvements
937
938* Fix suggestion of [`unit_arg`] lint, so that it suggest semantic equivalent code
939 [#4455](https://github.com/rust-lang/rust-clippy/pull/4455)
940* Add auto applicable suggestion to [`macro_use_imports`]
941 [#5279](https://github.com/rust-lang/rust-clippy/pull/5279)
942
943### ICE Fixes
944
945* Fix ICE in the `consts` module of Clippy [#5709](https://github.com/rust-lang/rust-clippy/pull/5709)
946
947### Documentation Improvements
948
949* Improve code examples across multiple lints [#5664](https://github.com/rust-lang/rust-clippy/pull/5664)
950
951### Others
952
953* Introduce a `--rustc` flag to `clippy-driver`, which turns `clippy-driver`
954 into `rustc` and passes all the given arguments to `rustc`. This is especially
955 useful for tools that need the `rustc` version Clippy was compiled with,
956 instead of the Clippy version. E.g. `clippy-driver --rustc --version` will
957 print the output of `rustc --version`.
958 [#5178](https://github.com/rust-lang/rust-clippy/pull/5178)
959* New issue templates now make it easier to complain if Clippy is too annoying
960 or not annoying enough! [#5735](https://github.com/rust-lang/rust-clippy/pull/5735)
961
962## Rust 1.45
963
964Released 2020-07-16
965
966[891e1a8...7ea7cd1](https://github.com/rust-lang/rust-clippy/compare/891e1a8...7ea7cd1)
967
968### New lints
969
970* [`match_wildcard_for_single_variants`] [#5582](https://github.com/rust-lang/rust-clippy/pull/5582)
971* [`unsafe_derive_deserialize`] [#5493](https://github.com/rust-lang/rust-clippy/pull/5493)
972* [`if_let_mutex`] [#5332](https://github.com/rust-lang/rust-clippy/pull/5332)
973* [`mismatched_target_os`] [#5506](https://github.com/rust-lang/rust-clippy/pull/5506)
974* [`await_holding_lock`] [#5439](https://github.com/rust-lang/rust-clippy/pull/5439)
975* [`match_on_vec_items`] [#5522](https://github.com/rust-lang/rust-clippy/pull/5522)
976* [`manual_async_fn`] [#5576](https://github.com/rust-lang/rust-clippy/pull/5576)
977* [`reversed_empty_ranges`] [#5583](https://github.com/rust-lang/rust-clippy/pull/5583)
978* [`manual_non_exhaustive`] [#5550](https://github.com/rust-lang/rust-clippy/pull/5550)
979
980### Moves and Deprecations
981
982* Downgrade [`match_bool`] to pedantic [#5408](https://github.com/rust-lang/rust-clippy/pull/5408)
983* Downgrade [`match_wild_err_arm`] to pedantic and update help messages. [#5622](https://github.com/rust-lang/rust-clippy/pull/5622)
984* Downgrade [`useless_let_if_seq`] to nursery. [#5599](https://github.com/rust-lang/rust-clippy/pull/5599)
985* Generalize `option_and_then_some` and rename to [`bind_instead_of_map`]. [#5529](https://github.com/rust-lang/rust-clippy/pull/5529)
986* Rename `identity_conversion` to [`useless_conversion`]. [#5568](https://github.com/rust-lang/rust-clippy/pull/5568)
987* Merge `block_in_if_condition_expr` and `block_in_if_condition_stmt` into [`blocks_in_if_conditions`].
988[#5563](https://github.com/rust-lang/rust-clippy/pull/5563)
989* Merge `option_map_unwrap_or`, `option_map_unwrap_or_else` and `result_map_unwrap_or_else` into [`map_unwrap_or`].
990[#5563](https://github.com/rust-lang/rust-clippy/pull/5563)
991* Merge `option_unwrap_used` and `result_unwrap_used` into [`unwrap_used`].
992[#5563](https://github.com/rust-lang/rust-clippy/pull/5563)
993* Merge `option_expect_used` and `result_expect_used` into [`expect_used`].
994[#5563](https://github.com/rust-lang/rust-clippy/pull/5563)
995* Merge `for_loop_over_option` and `for_loop_over_result` into [`for_loops_over_fallibles`].
996[#5563](https://github.com/rust-lang/rust-clippy/pull/5563)
997
998### Enhancements
999
1000* Avoid running cargo lints when not enabled to improve performance. [#5505](https://github.com/rust-lang/rust-clippy/pull/5505)
1001* Extend [`useless_conversion`] with `TryFrom` and `TryInto`. [#5631](https://github.com/rust-lang/rust-clippy/pull/5631)
1002* Lint also in type parameters and where clauses in [`unused_unit`]. [#5592](https://github.com/rust-lang/rust-clippy/pull/5592)
1003* Do not suggest deriving `Default` in [`new_without_default`]. [#5616](https://github.com/rust-lang/rust-clippy/pull/5616)
1004
1005### False Positive Fixes
1006
1007* [`while_let_on_iterator`] [#5525](https://github.com/rust-lang/rust-clippy/pull/5525)
1008* [`empty_line_after_outer_attr`] [#5609](https://github.com/rust-lang/rust-clippy/pull/5609)
1009* [`unnecessary_unwrap`] [#5558](https://github.com/rust-lang/rust-clippy/pull/5558)
1010* [`comparison_chain`] [#5596](https://github.com/rust-lang/rust-clippy/pull/5596)
1011* Don't trigger [`used_underscore_binding`] in await desugaring. [#5535](https://github.com/rust-lang/rust-clippy/pull/5535)
1012* Don't trigger [`borrowed_box`] on mutable references. [#5491](https://github.com/rust-lang/rust-clippy/pull/5491)
1013* Allow `1 << 0` in [`identity_op`]. [#5602](https://github.com/rust-lang/rust-clippy/pull/5602)
1014* Allow `use super::*;` glob imports in [`wildcard_imports`]. [#5564](https://github.com/rust-lang/rust-clippy/pull/5564)
1015* Whitelist more words in [`doc_markdown`]. [#5611](https://github.com/rust-lang/rust-clippy/pull/5611)
1016* Skip dev and build deps in [`multiple_crate_versions`]. [#5636](https://github.com/rust-lang/rust-clippy/pull/5636)
1017* Honor `allow` attribute on arguments in [`ptr_arg`]. [#5647](https://github.com/rust-lang/rust-clippy/pull/5647)
1018* Honor lint level attributes for [`redundant_field_names`], [`just_underscores_and_digits`], [`many_single_char_names`]
1019and [`similar_names`]. [#5651](https://github.com/rust-lang/rust-clippy/pull/5651)
1020* Ignore calls to `len` in [`or_fun_call`]. [#4429](https://github.com/rust-lang/rust-clippy/pull/4429)
1021
1022### Suggestion Improvements
1023
1024* Simplify suggestions in [`manual_memcpy`]. [#5536](https://github.com/rust-lang/rust-clippy/pull/5536)
1025* Fix suggestion in [`redundant_pattern_matching`] for macros. [#5511](https://github.com/rust-lang/rust-clippy/pull/5511)
1026* Avoid suggesting `copied()` for mutable references in [`map_clone`]. [#5530](https://github.com/rust-lang/rust-clippy/pull/5530)
1027* Improve help message for [`clone_double_ref`]. [#5547](https://github.com/rust-lang/rust-clippy/pull/5547)
1028
1029### ICE Fixes
1030
1031* Fix ICE caused in unwrap module. [#5590](https://github.com/rust-lang/rust-clippy/pull/5590)
1032* Fix ICE on rustc test issue-69020-assoc-const-arith-overflow.rs [#5499](https://github.com/rust-lang/rust-clippy/pull/5499)
1033
1034### Documentation
1035
1036* Clarify the documentation of [`unnecessary_mut_passed`]. [#5639](https://github.com/rust-lang/rust-clippy/pull/5639)
1037* Extend example for [`unneeded_field_pattern`]. [#5541](https://github.com/rust-lang/rust-clippy/pull/5541)
1038
1039## Rust 1.44
1040
1041Released 2020-06-04
1042
1043[204bb9b...891e1a8](https://github.com/rust-lang/rust-clippy/compare/204bb9b...891e1a8)
1044
1045### New lints
1046
1047* [`explicit_deref_methods`] [#5226](https://github.com/rust-lang/rust-clippy/pull/5226)
1048* [`implicit_saturating_sub`] [#5427](https://github.com/rust-lang/rust-clippy/pull/5427)
1049* [`macro_use_imports`] [#5230](https://github.com/rust-lang/rust-clippy/pull/5230)
1050* [`verbose_file_reads`] [#5272](https://github.com/rust-lang/rust-clippy/pull/5272)
1051* [`future_not_send`] [#5423](https://github.com/rust-lang/rust-clippy/pull/5423)
1052* [`redundant_pub_crate`] [#5319](https://github.com/rust-lang/rust-clippy/pull/5319)
1053* [`large_const_arrays`] [#5248](https://github.com/rust-lang/rust-clippy/pull/5248)
1054* [`result_map_or_into_option`] [#5415](https://github.com/rust-lang/rust-clippy/pull/5415)
1055* [`redundant_allocation`] [#5349](https://github.com/rust-lang/rust-clippy/pull/5349)
1056* [`fn_address_comparisons`] [#5294](https://github.com/rust-lang/rust-clippy/pull/5294)
1057* [`vtable_address_comparisons`] [#5294](https://github.com/rust-lang/rust-clippy/pull/5294)
1058
1059
1060### Moves and Deprecations
1061
1062* Deprecate [`replace_consts`] lint [#5380](https://github.com/rust-lang/rust-clippy/pull/5380)
1063* Move [`cognitive_complexity`] to nursery [#5428](https://github.com/rust-lang/rust-clippy/pull/5428)
1064* Move [`useless_transmute`] to nursery [#5364](https://github.com/rust-lang/rust-clippy/pull/5364)
1065* Downgrade [`inefficient_to_string`] to pedantic [#5412](https://github.com/rust-lang/rust-clippy/pull/5412)
1066* Downgrade [`option_option`] to pedantic [#5401](https://github.com/rust-lang/rust-clippy/pull/5401)
1067* Downgrade [`unreadable_literal`] to pedantic [#5419](https://github.com/rust-lang/rust-clippy/pull/5419)
1068* Downgrade [`let_unit_value`] to pedantic [#5409](https://github.com/rust-lang/rust-clippy/pull/5409)
1069* Downgrade [`trivially_copy_pass_by_ref`] to pedantic [#5410](https://github.com/rust-lang/rust-clippy/pull/5410)
1070* Downgrade [`implicit_hasher`] to pedantic [#5411](https://github.com/rust-lang/rust-clippy/pull/5411)
1071
1072### Enhancements
1073
1074* On _nightly_ you can now use `cargo clippy --fix -Z unstable-options` to
1075 auto-fix lints that support this [#5363](https://github.com/rust-lang/rust-clippy/pull/5363)
1076* Make [`redundant_clone`] also trigger on cases where the cloned value is not
1077 consumed. [#5304](https://github.com/rust-lang/rust-clippy/pull/5304)
1078* Expand [`integer_arithmetic`] to also disallow bit-shifting [#5430](https://github.com/rust-lang/rust-clippy/pull/5430)
1079* [`option_as_ref_deref`] now detects more deref cases [#5425](https://github.com/rust-lang/rust-clippy/pull/5425)
1080* [`large_enum_variant`] now report the sizes of the largest and second-largest variants [#5466](https://github.com/rust-lang/rust-clippy/pull/5466)
1081* [`bool_comparison`] now also checks for inequality comparisons that can be
1082 written more concisely [#5365](https://github.com/rust-lang/rust-clippy/pull/5365)
1083* Expand [`clone_on_copy`] to work in method call arguments as well [#5441](https://github.com/rust-lang/rust-clippy/pull/5441)
1084* [`redundant_pattern_matching`] now also handles `while let` [#5483](https://github.com/rust-lang/rust-clippy/pull/5483)
1085* [`integer_arithmetic`] now also lints references of integers [#5329](https://github.com/rust-lang/rust-clippy/pull/5329)
1086* Expand [`float_cmp_const`] to also work on arrays [#5345](https://github.com/rust-lang/rust-clippy/pull/5345)
1087* Trigger [`map_flatten`] when map is called on an `Option` [#5473](https://github.com/rust-lang/rust-clippy/pull/5473)
1088
1089### False Positive Fixes
1090
1091* [`many_single_char_names`] [#5468](https://github.com/rust-lang/rust-clippy/pull/5468)
1092* [`should_implement_trait`] [#5437](https://github.com/rust-lang/rust-clippy/pull/5437)
1093* [`unused_self`] [#5387](https://github.com/rust-lang/rust-clippy/pull/5387)
1094* [`redundant_clone`] [#5453](https://github.com/rust-lang/rust-clippy/pull/5453)
1095* [`precedence`] [#5445](https://github.com/rust-lang/rust-clippy/pull/5445)
1096* [`suspicious_op_assign_impl`] [#5424](https://github.com/rust-lang/rust-clippy/pull/5424)
1097* [`needless_lifetimes`] [#5293](https://github.com/rust-lang/rust-clippy/pull/5293)
1098* [`redundant_pattern`] [#5287](https://github.com/rust-lang/rust-clippy/pull/5287)
1099* [`inconsistent_digit_grouping`] [#5451](https://github.com/rust-lang/rust-clippy/pull/5451)
1100
1101
1102### Suggestion Improvements
1103
1104* Improved [`question_mark`] lint suggestion so that it doesn't add redundant `as_ref()` [#5481](https://github.com/rust-lang/rust-clippy/pull/5481)
1105* Improve the suggested placeholder in [`option_map_unit_fn`] [#5292](https://github.com/rust-lang/rust-clippy/pull/5292)
1106* Improve suggestion for [`match_single_binding`] when triggered inside a closure [#5350](https://github.com/rust-lang/rust-clippy/pull/5350)
1107
1108### ICE Fixes
1109
1110* Handle the unstable `trivial_bounds` feature [#5296](https://github.com/rust-lang/rust-clippy/pull/5296)
1111* `shadow_*` lints [#5297](https://github.com/rust-lang/rust-clippy/pull/5297)
1112
1113### Documentation
1114
1115* Fix documentation generation for configurable lints [#5353](https://github.com/rust-lang/rust-clippy/pull/5353)
1116* Update documentation for [`new_ret_no_self`] [#5448](https://github.com/rust-lang/rust-clippy/pull/5448)
1117* The documentation for [`option_option`] now suggest using a tri-state enum [#5403](https://github.com/rust-lang/rust-clippy/pull/5403)
1118* Fix bit mask example in [`verbose_bit_mask`] documentation [#5454](https://github.com/rust-lang/rust-clippy/pull/5454)
1119* [`wildcard_imports`] documentation now mentions that `use ...::prelude::*` is
1120 not linted [#5312](https://github.com/rust-lang/rust-clippy/pull/5312)
1121
1122## Rust 1.43
1123
1124Released 2020-04-23
1125
1126[4ee1206...204bb9b](https://github.com/rust-lang/rust-clippy/compare/4ee1206...204bb9b)
1127
1128### New lints
1129
1130* [`imprecise_flops`] [#4897](https://github.com/rust-lang/rust-clippy/pull/4897)
1131* [`suboptimal_flops`] [#4897](https://github.com/rust-lang/rust-clippy/pull/4897)
1132* [`wildcard_imports`] [#5029](https://github.com/rust-lang/rust-clippy/pull/5029)
1133* [`single_component_path_imports`] [#5058](https://github.com/rust-lang/rust-clippy/pull/5058)
1134* [`match_single_binding`] [#5061](https://github.com/rust-lang/rust-clippy/pull/5061)
1135* [`let_underscore_lock`] [#5101](https://github.com/rust-lang/rust-clippy/pull/5101)
1136* [`struct_excessive_bools`] [#5125](https://github.com/rust-lang/rust-clippy/pull/5125)
1137* [`fn_params_excessive_bools`] [#5125](https://github.com/rust-lang/rust-clippy/pull/5125)
1138* [`option_env_unwrap`] [#5148](https://github.com/rust-lang/rust-clippy/pull/5148)
1139* [`lossy_float_literal`] [#5202](https://github.com/rust-lang/rust-clippy/pull/5202)
1140* [`rest_pat_in_fully_bound_structs`] [#5258](https://github.com/rust-lang/rust-clippy/pull/5258)
1141
1142### Moves and Deprecations
1143
1144* Move [`unneeded_field_pattern`] to pedantic group [#5200](https://github.com/rust-lang/rust-clippy/pull/5200)
1145
1146### Enhancements
1147
1148* Make [`missing_errors_doc`] lint also trigger on `async` functions
1149 [#5181](https://github.com/rust-lang/rust-clippy/pull/5181)
1150* Add more constants to [`approx_constant`] [#5193](https://github.com/rust-lang/rust-clippy/pull/5193)
1151* Extend [`question_mark`] lint [#5266](https://github.com/rust-lang/rust-clippy/pull/5266)
1152
1153### False Positive Fixes
1154
1155* [`use_debug`] [#5047](https://github.com/rust-lang/rust-clippy/pull/5047)
1156* [`unnecessary_unwrap`] [#5132](https://github.com/rust-lang/rust-clippy/pull/5132)
1157* [`zero_prefixed_literal`] [#5170](https://github.com/rust-lang/rust-clippy/pull/5170)
1158* [`missing_const_for_fn`] [#5216](https://github.com/rust-lang/rust-clippy/pull/5216)
1159
1160### Suggestion Improvements
1161
1162* Improve suggestion when blocks of code are suggested [#5134](https://github.com/rust-lang/rust-clippy/pull/5134)
1163
1164### ICE Fixes
1165
1166* `misc_early` lints [#5129](https://github.com/rust-lang/rust-clippy/pull/5129)
1167* [`missing_errors_doc`] [#5213](https://github.com/rust-lang/rust-clippy/pull/5213)
1168* Fix ICE when evaluating `usize`s [#5256](https://github.com/rust-lang/rust-clippy/pull/5256)
1169
1170### Documentation
1171
1172* Improve documentation of [`iter_nth_zero`]
1173* Add documentation pages for stable releases [#5171](https://github.com/rust-lang/rust-clippy/pull/5171)
1174
1175### Others
1176
1177* Clippy now completely runs on GitHub Actions [#5190](https://github.com/rust-lang/rust-clippy/pull/5190)
1178
1179
1180## Rust 1.42
1181
1182Released 2020-03-12
1183
1184[69f99e7...4ee1206](https://github.com/rust-lang/rust-clippy/compare/69f99e7...4ee1206)
1185
1186### New lints
1187
1188* [`filetype_is_file`] [#4543](https://github.com/rust-lang/rust-clippy/pull/4543)
1189* [`let_underscore_must_use`] [#4823](https://github.com/rust-lang/rust-clippy/pull/4823)
1190* [`modulo_arithmetic`] [#4867](https://github.com/rust-lang/rust-clippy/pull/4867)
1191* [`mem_replace_with_default`] [#4881](https://github.com/rust-lang/rust-clippy/pull/4881)
1192* [`mutable_key_type`] [#4885](https://github.com/rust-lang/rust-clippy/pull/4885)
1193* [`option_as_ref_deref`] [#4945](https://github.com/rust-lang/rust-clippy/pull/4945)
1194* [`wildcard_in_or_patterns`] [#4960](https://github.com/rust-lang/rust-clippy/pull/4960)
1195* [`iter_nth_zero`] [#4966](https://github.com/rust-lang/rust-clippy/pull/4966)
1196* [`invalid_atomic_ordering`] [#4999](https://github.com/rust-lang/rust-clippy/pull/4999)
1197* [`skip_while_next`] [#5067](https://github.com/rust-lang/rust-clippy/pull/5067)
1198
1199### Moves and Deprecations
1200
1201* Move [`transmute_float_to_int`] from nursery to complexity group
1202 [#5015](https://github.com/rust-lang/rust-clippy/pull/5015)
1203* Move [`range_plus_one`] to pedantic group [#5057](https://github.com/rust-lang/rust-clippy/pull/5057)
1204* Move [`debug_assert_with_mut_call`] to nursery group [#5106](https://github.com/rust-lang/rust-clippy/pull/5106)
cdc7bbd5 1205* Deprecate `unused_label` [#4930](https://github.com/rust-lang/rust-clippy/pull/4930)
f20569fa
XL
1206
1207### Enhancements
1208
1209* Lint vectored IO in [`unused_io_amount`] [#5027](https://github.com/rust-lang/rust-clippy/pull/5027)
1210* Make [`vec_box`] configurable by adding a size threshold [#5081](https://github.com/rust-lang/rust-clippy/pull/5081)
1211* Also lint constants in [`cmp_nan`] [#4910](https://github.com/rust-lang/rust-clippy/pull/4910)
1212* Fix false negative in [`expect_fun_call`] [#4915](https://github.com/rust-lang/rust-clippy/pull/4915)
1213* Fix false negative in [`redundant_clone`] [#5017](https://github.com/rust-lang/rust-clippy/pull/5017)
1214
1215### False Positive Fixes
1216
1217* [`map_clone`] [#4937](https://github.com/rust-lang/rust-clippy/pull/4937)
1218* [`replace_consts`] [#4977](https://github.com/rust-lang/rust-clippy/pull/4977)
1219* [`let_and_return`] [#5008](https://github.com/rust-lang/rust-clippy/pull/5008)
1220* [`eq_op`] [#5079](https://github.com/rust-lang/rust-clippy/pull/5079)
1221* [`possible_missing_comma`] [#5083](https://github.com/rust-lang/rust-clippy/pull/5083)
1222* [`debug_assert_with_mut_call`] [#5106](https://github.com/rust-lang/rust-clippy/pull/5106)
1223* Don't trigger [`let_underscore_must_use`] in external macros
1224 [#5082](https://github.com/rust-lang/rust-clippy/pull/5082)
1225* Don't trigger [`empty_loop`] in `no_std` crates [#5086](https://github.com/rust-lang/rust-clippy/pull/5086)
1226
1227### Suggestion Improvements
1228
1229* `option_map_unwrap_or` [#4634](https://github.com/rust-lang/rust-clippy/pull/4634)
1230* [`wildcard_enum_match_arm`] [#4934](https://github.com/rust-lang/rust-clippy/pull/4934)
1231* [`cognitive_complexity`] [#4935](https://github.com/rust-lang/rust-clippy/pull/4935)
1232* [`decimal_literal_representation`] [#4956](https://github.com/rust-lang/rust-clippy/pull/4956)
cdc7bbd5 1233* `unknown_clippy_lints` [#4963](https://github.com/rust-lang/rust-clippy/pull/4963)
f20569fa
XL
1234* [`explicit_into_iter_loop`] [#4978](https://github.com/rust-lang/rust-clippy/pull/4978)
1235* [`useless_attribute`] [#5022](https://github.com/rust-lang/rust-clippy/pull/5022)
1236* [`if_let_some_result`] [#5032](https://github.com/rust-lang/rust-clippy/pull/5032)
1237
1238### ICE fixes
1239
1240* [`unsound_collection_transmute`] [#4975](https://github.com/rust-lang/rust-clippy/pull/4975)
1241
1242### Documentation
1243
1244* Improve documentation of [`empty_enum`], [`replace_consts`], [`redundant_clone`], and [`iterator_step_by_zero`]
1245
1246
1247## Rust 1.41
1248
1249Released 2020-01-30
1250
1251[c8e3cfb...69f99e7](https://github.com/rust-lang/rust-clippy/compare/c8e3cfb...69f99e7)
1252
1253* New Lints:
1254 * [`exit`] [#4697](https://github.com/rust-lang/rust-clippy/pull/4697)
1255 * [`to_digit_is_some`] [#4801](https://github.com/rust-lang/rust-clippy/pull/4801)
1256 * [`tabs_in_doc_comments`] [#4806](https://github.com/rust-lang/rust-clippy/pull/4806)
1257 * [`large_stack_arrays`] [#4807](https://github.com/rust-lang/rust-clippy/pull/4807)
1258 * [`same_functions_in_if_condition`] [#4814](https://github.com/rust-lang/rust-clippy/pull/4814)
1259 * [`zst_offset`] [#4816](https://github.com/rust-lang/rust-clippy/pull/4816)
1260 * [`as_conversions`] [#4821](https://github.com/rust-lang/rust-clippy/pull/4821)
1261 * [`missing_errors_doc`] [#4884](https://github.com/rust-lang/rust-clippy/pull/4884)
1262 * [`transmute_float_to_int`] [#4889](https://github.com/rust-lang/rust-clippy/pull/4889)
1263* Remove plugin interface, see
1264 [Inside Rust Blog](https://blog.rust-lang.org/inside-rust/2019/11/04/Clippy-removes-plugin-interface.html) for
1265 details [#4714](https://github.com/rust-lang/rust-clippy/pull/4714)
1266* Move [`use_self`] to nursery group [#4863](https://github.com/rust-lang/rust-clippy/pull/4863)
cdc7bbd5 1267* Deprecate `into_iter_on_array` [#4788](https://github.com/rust-lang/rust-clippy/pull/4788)
f20569fa
XL
1268* Expand [`string_lit_as_bytes`] to also trigger when literal has escapes
1269 [#4808](https://github.com/rust-lang/rust-clippy/pull/4808)
1270* Fix false positive in `comparison_chain` [#4842](https://github.com/rust-lang/rust-clippy/pull/4842)
1271* Fix false positive in `while_immutable_condition` [#4730](https://github.com/rust-lang/rust-clippy/pull/4730)
1272* Fix false positive in `explicit_counter_loop` [#4803](https://github.com/rust-lang/rust-clippy/pull/4803)
1273* Fix false positive in `must_use_candidate` [#4794](https://github.com/rust-lang/rust-clippy/pull/4794)
1274* Fix false positive in `print_with_newline` and `write_with_newline`
1275 [#4769](https://github.com/rust-lang/rust-clippy/pull/4769)
1276* Fix false positive in `derive_hash_xor_eq` [#4766](https://github.com/rust-lang/rust-clippy/pull/4766)
1277* Fix false positive in `missing_inline_in_public_items` [#4870](https://github.com/rust-lang/rust-clippy/pull/4870)
1278* Fix false positive in `string_add` [#4880](https://github.com/rust-lang/rust-clippy/pull/4880)
1279* Fix false positive in `float_arithmetic` [#4851](https://github.com/rust-lang/rust-clippy/pull/4851)
1280* Fix false positive in `cast_sign_loss` [#4883](https://github.com/rust-lang/rust-clippy/pull/4883)
1281* Fix false positive in `manual_swap` [#4877](https://github.com/rust-lang/rust-clippy/pull/4877)
1282* Fix ICEs occurring while checking some block expressions [#4772](https://github.com/rust-lang/rust-clippy/pull/4772)
1283* Fix ICE in `use_self` [#4776](https://github.com/rust-lang/rust-clippy/pull/4776)
1284* Fix ICEs related to `const_generics` [#4780](https://github.com/rust-lang/rust-clippy/pull/4780)
1285* Display help when running `clippy-driver` without arguments, instead of ICEing
1286 [#4810](https://github.com/rust-lang/rust-clippy/pull/4810)
1287* Clippy has its own ICE message now [#4588](https://github.com/rust-lang/rust-clippy/pull/4588)
1288* Show deprecated lints in the documentation again [#4757](https://github.com/rust-lang/rust-clippy/pull/4757)
1289* Improve Documentation by adding positive examples to some lints
1290 [#4832](https://github.com/rust-lang/rust-clippy/pull/4832)
1291
1292## Rust 1.40
1293
1294Released 2019-12-19
1295
1296[4e7e71b...c8e3cfb](https://github.com/rust-lang/rust-clippy/compare/4e7e71b...c8e3cfb)
1297
1298* New Lints:
1299 * [`unneeded_wildcard_pattern`] [#4537](https://github.com/rust-lang/rust-clippy/pull/4537)
1300 * [`needless_doctest_main`] [#4603](https://github.com/rust-lang/rust-clippy/pull/4603)
1301 * [`suspicious_unary_op_formatting`] [#4615](https://github.com/rust-lang/rust-clippy/pull/4615)
1302 * [`debug_assert_with_mut_call`] [#4680](https://github.com/rust-lang/rust-clippy/pull/4680)
1303 * [`unused_self`] [#4619](https://github.com/rust-lang/rust-clippy/pull/4619)
1304 * [`inefficient_to_string`] [#4683](https://github.com/rust-lang/rust-clippy/pull/4683)
1305 * [`must_use_unit`] [#4560](https://github.com/rust-lang/rust-clippy/pull/4560)
1306 * [`must_use_candidate`] [#4560](https://github.com/rust-lang/rust-clippy/pull/4560)
1307 * [`double_must_use`] [#4560](https://github.com/rust-lang/rust-clippy/pull/4560)
1308 * [`comparison_chain`] [#4569](https://github.com/rust-lang/rust-clippy/pull/4569)
1309 * [`unsound_collection_transmute`] [#4592](https://github.com/rust-lang/rust-clippy/pull/4592)
1310 * [`panic`] [#4657](https://github.com/rust-lang/rust-clippy/pull/4657)
1311 * [`unreachable`] [#4657](https://github.com/rust-lang/rust-clippy/pull/4657)
1312 * [`todo`] [#4657](https://github.com/rust-lang/rust-clippy/pull/4657)
1313 * `option_expect_used` [#4657](https://github.com/rust-lang/rust-clippy/pull/4657)
1314 * `result_expect_used` [#4657](https://github.com/rust-lang/rust-clippy/pull/4657)
1315* Move `redundant_clone` to perf group [#4509](https://github.com/rust-lang/rust-clippy/pull/4509)
1316* Move `manual_mul_add` to nursery group [#4736](https://github.com/rust-lang/rust-clippy/pull/4736)
1317* Expand `unit_cmp` to also work with `assert_eq!`, `debug_assert_eq!`, `assert_ne!` and `debug_assert_ne!` [#4613](https://github.com/rust-lang/rust-clippy/pull/4613)
1318* Expand `integer_arithmetic` to also detect mutating arithmetic like `+=` [#4585](https://github.com/rust-lang/rust-clippy/pull/4585)
1319* Fix false positive in `nonminimal_bool` [#4568](https://github.com/rust-lang/rust-clippy/pull/4568)
1320* Fix false positive in `missing_safety_doc` [#4611](https://github.com/rust-lang/rust-clippy/pull/4611)
1321* Fix false positive in `cast_sign_loss` [#4614](https://github.com/rust-lang/rust-clippy/pull/4614)
1322* Fix false positive in `redundant_clone` [#4509](https://github.com/rust-lang/rust-clippy/pull/4509)
1323* Fix false positive in `try_err` [#4721](https://github.com/rust-lang/rust-clippy/pull/4721)
1324* Fix false positive in `toplevel_ref_arg` [#4570](https://github.com/rust-lang/rust-clippy/pull/4570)
1325* Fix false positive in `multiple_inherent_impl` [#4593](https://github.com/rust-lang/rust-clippy/pull/4593)
1326* Improve more suggestions and tests in preparation for the unstable `cargo fix --clippy` [#4575](https://github.com/rust-lang/rust-clippy/pull/4575)
1327* Improve suggestion for `zero_ptr` [#4599](https://github.com/rust-lang/rust-clippy/pull/4599)
1328* Improve suggestion for `explicit_counter_loop` [#4691](https://github.com/rust-lang/rust-clippy/pull/4691)
1329* Improve suggestion for `mul_add` [#4602](https://github.com/rust-lang/rust-clippy/pull/4602)
1330* Improve suggestion for `assertions_on_constants` [#4635](https://github.com/rust-lang/rust-clippy/pull/4635)
1331* Fix ICE in `use_self` [#4671](https://github.com/rust-lang/rust-clippy/pull/4671)
1332* Fix ICE when encountering const casts [#4590](https://github.com/rust-lang/rust-clippy/pull/4590)
1333
1334## Rust 1.39
1335
1336Released 2019-11-07
1337
1338[3aea860...4e7e71b](https://github.com/rust-lang/rust-clippy/compare/3aea860...4e7e71b)
1339
1340* New Lints:
1341 * [`uninit_assumed_init`] [#4479](https://github.com/rust-lang/rust-clippy/pull/4479)
1342 * [`flat_map_identity`] [#4231](https://github.com/rust-lang/rust-clippy/pull/4231)
1343 * [`missing_safety_doc`] [#4535](https://github.com/rust-lang/rust-clippy/pull/4535)
1344 * [`mem_replace_with_uninit`] [#4511](https://github.com/rust-lang/rust-clippy/pull/4511)
1345 * [`suspicious_map`] [#4394](https://github.com/rust-lang/rust-clippy/pull/4394)
1346 * `option_and_then_some` [#4386](https://github.com/rust-lang/rust-clippy/pull/4386)
1347 * [`manual_saturating_arithmetic`] [#4498](https://github.com/rust-lang/rust-clippy/pull/4498)
1348* Deprecate `unused_collect` lint. This is fully covered by rustc's `#[must_use]` on `collect` [#4348](https://github.com/rust-lang/rust-clippy/pull/4348)
1349* Move `type_repetition_in_bounds` to pedantic group [#4403](https://github.com/rust-lang/rust-clippy/pull/4403)
1350* Move `cast_lossless` to pedantic group [#4539](https://github.com/rust-lang/rust-clippy/pull/4539)
1351* `temporary_cstring_as_ptr` now catches more cases [#4425](https://github.com/rust-lang/rust-clippy/pull/4425)
1352* `use_self` now works in constructors, too [#4525](https://github.com/rust-lang/rust-clippy/pull/4525)
1353* `cargo_common_metadata` now checks for license files [#4518](https://github.com/rust-lang/rust-clippy/pull/4518)
1354* `cognitive_complexity` now includes the measured complexity in the warning message [#4469](https://github.com/rust-lang/rust-clippy/pull/4469)
1355* Fix false positives in `block_in_if_*` lints [#4458](https://github.com/rust-lang/rust-clippy/pull/4458)
1356* Fix false positive in `cast_lossless` [#4473](https://github.com/rust-lang/rust-clippy/pull/4473)
1357* Fix false positive in `clone_on_copy` [#4411](https://github.com/rust-lang/rust-clippy/pull/4411)
1358* Fix false positive in `deref_addrof` [#4487](https://github.com/rust-lang/rust-clippy/pull/4487)
1359* Fix false positive in `too_many_lines` [#4490](https://github.com/rust-lang/rust-clippy/pull/4490)
1360* Fix false positive in `new_ret_no_self` [#4365](https://github.com/rust-lang/rust-clippy/pull/4365)
1361* Fix false positive in `manual_swap` [#4478](https://github.com/rust-lang/rust-clippy/pull/4478)
1362* Fix false positive in `missing_const_for_fn` [#4450](https://github.com/rust-lang/rust-clippy/pull/4450)
1363* Fix false positive in `extra_unused_lifetimes` [#4477](https://github.com/rust-lang/rust-clippy/pull/4477)
1364* Fix false positive in `inherent_to_string` [#4460](https://github.com/rust-lang/rust-clippy/pull/4460)
1365* Fix false positive in `map_entry` [#4495](https://github.com/rust-lang/rust-clippy/pull/4495)
1366* Fix false positive in `unused_unit` [#4445](https://github.com/rust-lang/rust-clippy/pull/4445)
1367* Fix false positive in `redundant_pattern` [#4489](https://github.com/rust-lang/rust-clippy/pull/4489)
1368* Fix false positive in `wrong_self_convention` [#4369](https://github.com/rust-lang/rust-clippy/pull/4369)
1369* Improve various suggestions and tests in preparation for the unstable `cargo fix --clippy` [#4558](https://github.com/rust-lang/rust-clippy/pull/4558)
1370* Improve suggestions for `redundant_pattern_matching` [#4352](https://github.com/rust-lang/rust-clippy/pull/4352)
1371* Improve suggestions for `explicit_write` [#4544](https://github.com/rust-lang/rust-clippy/pull/4544)
1372* Improve suggestion for `or_fun_call` [#4522](https://github.com/rust-lang/rust-clippy/pull/4522)
1373* Improve suggestion for `match_as_ref` [#4446](https://github.com/rust-lang/rust-clippy/pull/4446)
1374* Improve suggestion for `unnecessary_fold_span` [#4382](https://github.com/rust-lang/rust-clippy/pull/4382)
1375* Add suggestions for `unseparated_literal_suffix` [#4401](https://github.com/rust-lang/rust-clippy/pull/4401)
1376* Add suggestions for `char_lit_as_u8` [#4418](https://github.com/rust-lang/rust-clippy/pull/4418)
1377
1378## Rust 1.38
1379
1380Released 2019-09-26
1381
1382[e3cb40e...3aea860](https://github.com/rust-lang/rust-clippy/compare/e3cb40e...3aea860)
1383
1384* New Lints:
1385 * [`main_recursion`] [#4203](https://github.com/rust-lang/rust-clippy/pull/4203)
1386 * [`inherent_to_string`] [#4259](https://github.com/rust-lang/rust-clippy/pull/4259)
1387 * [`inherent_to_string_shadow_display`] [#4259](https://github.com/rust-lang/rust-clippy/pull/4259)
1388 * [`type_repetition_in_bounds`] [#3766](https://github.com/rust-lang/rust-clippy/pull/3766)
1389 * [`try_err`] [#4222](https://github.com/rust-lang/rust-clippy/pull/4222)
1390* Move `{unnnecessary,panicking}_unwrap` out of nursery [#4307](https://github.com/rust-lang/rust-clippy/pull/4307)
1391* Extend the `use_self` lint to suggest uses of `Self::Variant` [#4308](https://github.com/rust-lang/rust-clippy/pull/4308)
1392* Improve suggestion for needless return [#4262](https://github.com/rust-lang/rust-clippy/pull/4262)
1393* Add auto-fixable suggestion for `let_unit` [#4337](https://github.com/rust-lang/rust-clippy/pull/4337)
1394* Fix false positive in `pub_enum_variant_names` and `enum_variant_names` [#4345](https://github.com/rust-lang/rust-clippy/pull/4345)
1395* Fix false positive in `cast_ptr_alignment` [#4257](https://github.com/rust-lang/rust-clippy/pull/4257)
1396* Fix false positive in `string_lit_as_bytes` [#4233](https://github.com/rust-lang/rust-clippy/pull/4233)
1397* Fix false positive in `needless_lifetimes` [#4266](https://github.com/rust-lang/rust-clippy/pull/4266)
1398* Fix false positive in `float_cmp` [#4275](https://github.com/rust-lang/rust-clippy/pull/4275)
1399* Fix false positives in `needless_return` [#4274](https://github.com/rust-lang/rust-clippy/pull/4274)
1400* Fix false negative in `match_same_arms` [#4246](https://github.com/rust-lang/rust-clippy/pull/4246)
1401* Fix incorrect suggestion for `needless_bool` [#4335](https://github.com/rust-lang/rust-clippy/pull/4335)
1402* Improve suggestion for `cast_ptr_alignment` [#4257](https://github.com/rust-lang/rust-clippy/pull/4257)
1403* Improve suggestion for `single_char_literal` [#4361](https://github.com/rust-lang/rust-clippy/pull/4361)
1404* Improve suggestion for `len_zero` [#4314](https://github.com/rust-lang/rust-clippy/pull/4314)
1405* Fix ICE in `implicit_hasher` [#4268](https://github.com/rust-lang/rust-clippy/pull/4268)
1406* Fix allow bug in `trivially_copy_pass_by_ref` [#4250](https://github.com/rust-lang/rust-clippy/pull/4250)
1407
1408## Rust 1.37
1409
1410Released 2019-08-15
1411
1412[082cfa7...e3cb40e](https://github.com/rust-lang/rust-clippy/compare/082cfa7...e3cb40e)
1413
1414* New Lints:
1415 * [`checked_conversions`] [#4088](https://github.com/rust-lang/rust-clippy/pull/4088)
1416 * [`get_last_with_len`] [#3832](https://github.com/rust-lang/rust-clippy/pull/3832)
1417 * [`integer_division`] [#4195](https://github.com/rust-lang/rust-clippy/pull/4195)
1418* Renamed Lint: `const_static_lifetime` is now called [`redundant_static_lifetimes`].
1419 The lint now covers statics in addition to consts [#4162](https://github.com/rust-lang/rust-clippy/pull/4162)
1420* [`match_same_arms`] now warns for all identical arms, instead of only the first one [#4102](https://github.com/rust-lang/rust-clippy/pull/4102)
1421* [`needless_return`] now works with void functions [#4220](https://github.com/rust-lang/rust-clippy/pull/4220)
1422* Fix false positive in [`redundant_closure`] [#4190](https://github.com/rust-lang/rust-clippy/pull/4190)
1423* Fix false positive in [`useless_attribute`] [#4107](https://github.com/rust-lang/rust-clippy/pull/4107)
1424* Fix incorrect suggestion for [`float_cmp`] [#4214](https://github.com/rust-lang/rust-clippy/pull/4214)
1425* Add suggestions for [`print_with_newline`] and [`write_with_newline`] [#4136](https://github.com/rust-lang/rust-clippy/pull/4136)
1426* Improve suggestions for `option_map_unwrap_or_else` and `result_map_unwrap_or_else` [#4164](https://github.com/rust-lang/rust-clippy/pull/4164)
1427* Improve suggestions for [`non_ascii_literal`] [#4119](https://github.com/rust-lang/rust-clippy/pull/4119)
1428* Improve diagnostics for [`let_and_return`] [#4137](https://github.com/rust-lang/rust-clippy/pull/4137)
1429* Improve diagnostics for [`trivially_copy_pass_by_ref`] [#4071](https://github.com/rust-lang/rust-clippy/pull/4071)
1430* Add macro check for [`unreadable_literal`] [#4099](https://github.com/rust-lang/rust-clippy/pull/4099)
1431
1432## Rust 1.36
1433
1434Released 2019-07-04
1435
1436[eb9f9b1...082cfa7](https://github.com/rust-lang/rust-clippy/compare/eb9f9b1...082cfa7)
1437
1438* New lints: [`find_map`], [`filter_map_next`] [#4039](https://github.com/rust-lang/rust-clippy/pull/4039)
1439* New lint: [`path_buf_push_overwrite`] [#3954](https://github.com/rust-lang/rust-clippy/pull/3954)
1440* Move `path_buf_push_overwrite` to the nursery [#4013](https://github.com/rust-lang/rust-clippy/pull/4013)
1441* Split [`redundant_closure`] into [`redundant_closure`] and [`redundant_closure_for_method_calls`] [#4110](https://github.com/rust-lang/rust-clippy/pull/4101)
1442* Allow allowing of [`toplevel_ref_arg`] lint [#4007](https://github.com/rust-lang/rust-clippy/pull/4007)
1443* Fix false negative in [`or_fun_call`] pertaining to nested constructors [#4084](https://github.com/rust-lang/rust-clippy/pull/4084)
1444* Fix false positive in [`or_fun_call`] pertaining to enum variant constructors [#4018](https://github.com/rust-lang/rust-clippy/pull/4018)
1445* Fix false positive in [`useless_let_if_seq`] pertaining to interior mutability [#4035](https://github.com/rust-lang/rust-clippy/pull/4035)
1446* Fix false positive in [`redundant_closure`] pertaining to non-function types [#4008](https://github.com/rust-lang/rust-clippy/pull/4008)
1447* Fix false positive in [`let_and_return`] pertaining to attributes on `let`s [#4024](https://github.com/rust-lang/rust-clippy/pull/4024)
1448* Fix false positive in [`module_name_repetitions`] lint pertaining to attributes [#4006](https://github.com/rust-lang/rust-clippy/pull/4006)
1449* Fix false positive on [`assertions_on_constants`] pertaining to `debug_assert!` [#3989](https://github.com/rust-lang/rust-clippy/pull/3989)
1450* Improve suggestion in [`map_clone`] to suggest `.copied()` where applicable [#3970](https://github.com/rust-lang/rust-clippy/pull/3970) [#4043](https://github.com/rust-lang/rust-clippy/pull/4043)
1451* Improve suggestion for [`search_is_some`] [#4049](https://github.com/rust-lang/rust-clippy/pull/4049)
1452* Improve suggestion applicability for [`naive_bytecount`] [#3984](https://github.com/rust-lang/rust-clippy/pull/3984)
1453* Improve suggestion applicability for [`while_let_loop`] [#3975](https://github.com/rust-lang/rust-clippy/pull/3975)
1454* Improve diagnostics for [`too_many_arguments`] [#4053](https://github.com/rust-lang/rust-clippy/pull/4053)
1455* Improve diagnostics for [`cast_lossless`] [#4021](https://github.com/rust-lang/rust-clippy/pull/4021)
1456* Deal with macro checks in desugarings better [#4082](https://github.com/rust-lang/rust-clippy/pull/4082)
1457* Add macro check for [`unnecessary_cast`] [#4026](https://github.com/rust-lang/rust-clippy/pull/4026)
1458* Remove [`approx_constant`]'s documentation's "Known problems" section. [#4027](https://github.com/rust-lang/rust-clippy/pull/4027)
1459* Fix ICE in [`suspicious_else_formatting`] [#3960](https://github.com/rust-lang/rust-clippy/pull/3960)
1460* Fix ICE in [`decimal_literal_representation`] [#3931](https://github.com/rust-lang/rust-clippy/pull/3931)
1461
1462
1463## Rust 1.35
1464
1465Released 2019-05-20
1466
1467[1fac380..37f5c1e](https://github.com/rust-lang/rust-clippy/compare/1fac380...37f5c1e)
1468
cdc7bbd5 1469* New lint: `drop_bounds` to detect `T: Drop` bounds
f20569fa
XL
1470* Split [`redundant_closure`] into [`redundant_closure`] and [`redundant_closure_for_method_calls`] [#4110](https://github.com/rust-lang/rust-clippy/pull/4101)
1471* Rename `cyclomatic_complexity` to [`cognitive_complexity`], start work on making lint more practical for Rust code
1472* Move [`get_unwrap`] to the restriction category
1473* Improve suggestions for [`iter_cloned_collect`]
1474* Improve suggestions for [`cast_lossless`] to suggest suffixed literals
1475* Fix false positives in [`print_with_newline`] and [`write_with_newline`] pertaining to raw strings
1476* Fix false positive in [`needless_range_loop`] pertaining to structs without a `.iter()`
1477* Fix false positive in [`bool_comparison`] pertaining to non-bool types
1478* Fix false positive in [`redundant_closure`] pertaining to differences in borrows
1479* Fix false positive in `option_map_unwrap_or` on non-copy types
1480* Fix false positives in [`missing_const_for_fn`] pertaining to macros and trait method impls
1481* Fix false positive in [`needless_pass_by_value`] pertaining to procedural macros
1482* Fix false positive in [`needless_continue`] pertaining to loop labels
1483* Fix false positive for [`boxed_local`] pertaining to arguments moved into closures
1484* Fix false positive for [`use_self`] in nested functions
1485* Fix suggestion for [`expect_fun_call`] (https://github.com/rust-lang/rust-clippy/pull/3846)
1486* Fix suggestion for [`explicit_counter_loop`] to deal with parenthesizing range variables
1487* Fix suggestion for [`single_char_pattern`] to correctly escape single quotes
1488* Avoid triggering [`redundant_closure`] in macros
1489* ICE fixes: [#3805](https://github.com/rust-lang/rust-clippy/pull/3805), [#3772](https://github.com/rust-lang/rust-clippy/pull/3772), [#3741](https://github.com/rust-lang/rust-clippy/pull/3741)
1490
1491## Rust 1.34
1492
1493Released 2019-04-10
1494
1495[1b89724...1fac380](https://github.com/rust-lang/rust-clippy/compare/1b89724...1fac380)
1496
1497* New lint: [`assertions_on_constants`] to detect for example `assert!(true)`
1498* New lint: [`dbg_macro`] to detect uses of the `dbg!` macro
1499* New lint: [`missing_const_for_fn`] that can suggest functions to be made `const`
1500* New lint: [`too_many_lines`] to detect functions with excessive LOC. It can be
1501 configured using the `too-many-lines-threshold` configuration.
1502* New lint: [`wildcard_enum_match_arm`] to check for wildcard enum matches using `_`
1503* Expand `redundant_closure` to also work for methods (not only functions)
1504* Fix ICEs in `vec_box`, `needless_pass_by_value` and `implicit_hasher`
1505* Fix false positive in `cast_sign_loss`
1506* Fix false positive in `integer_arithmetic`
1507* Fix false positive in `unit_arg`
1508* Fix false positives in `implicit_return`
1509* Add suggestion to `explicit_write`
1510* Improve suggestions for `question_mark` lint
1511* Fix incorrect suggestion for `cast_lossless`
1512* Fix incorrect suggestion for `expect_fun_call`
1513* Fix incorrect suggestion for `needless_bool`
1514* Fix incorrect suggestion for `needless_range_loop`
1515* Fix incorrect suggestion for `use_self`
1516* Fix incorrect suggestion for `while_let_on_iterator`
1517* Clippy is now slightly easier to invoke in non-cargo contexts. See
1518 [#3665][pull3665] for more details.
1519* We now have [improved documentation][adding_lints] on how to add new lints
1520
1521## Rust 1.33
1522
1523Released 2019-02-26
1524
1525[b2601be...1b89724](https://github.com/rust-lang/rust-clippy/compare/b2601be...1b89724)
1526
1527* New lints: [`implicit_return`], [`vec_box`], [`cast_ref_to_mut`]
1528* The `rust-clippy` repository is now part of the `rust-lang` org.
1529* Rename `stutter` to `module_name_repetitions`
1530* Merge `new_without_default_derive` into `new_without_default` lint
1531* Move `large_digit_groups` from `style` group to `pedantic`
1532* Expand `bool_comparison` to check for `<`, `<=`, `>`, `>=`, and `!=`
1533 comparisons against booleans
1534* Expand `no_effect` to detect writes to constants such as `A_CONST.field = 2`
1535* Expand `redundant_clone` to work on struct fields
1536* Expand `suspicious_else_formatting` to detect `if .. {..} {..}`
1537* Expand `use_self` to work on tuple structs and also in local macros
1538* Fix ICE in `result_map_unit_fn` and `option_map_unit_fn`
1539* Fix false positives in `implicit_return`
1540* Fix false positives in `use_self`
1541* Fix false negative in `clone_on_copy`
1542* Fix false positive in `doc_markdown`
1543* Fix false positive in `empty_loop`
1544* Fix false positive in `if_same_then_else`
1545* Fix false positive in `infinite_iter`
1546* Fix false positive in `question_mark`
1547* Fix false positive in `useless_asref`
1548* Fix false positive in `wildcard_dependencies`
1549* Fix false positive in `write_with_newline`
1550* Add suggestion to `explicit_write`
1551* Improve suggestions for `question_mark` lint
1552* Fix incorrect suggestion for `get_unwrap`
1553
1554## Rust 1.32
1555
1556Released 2019-01-17
1557
1558[2e26fdc2...b2601be](https://github.com/rust-lang/rust-clippy/compare/2e26fdc2...b2601be)
1559
1560* New lints: [`slow_vector_initialization`], [`mem_discriminant_non_enum`],
1561 [`redundant_clone`], [`wildcard_dependencies`],
cdc7bbd5 1562 [`into_iter_on_ref`], `into_iter_on_array`, [`deprecated_cfg_attr`],
f20569fa
XL
1563 [`mem_discriminant_non_enum`], [`cargo_common_metadata`]
1564* Add support for `u128` and `i128` to integer related lints
1565* Add float support to `mistyped_literal_suffixes`
1566* Fix false positives in `use_self`
1567* Fix false positives in `missing_comma`
1568* Fix false positives in `new_ret_no_self`
1569* Fix false positives in `possible_missing_comma`
1570* Fix false positive in `integer_arithmetic` in constant items
1571* Fix false positive in `needless_borrow`
1572* Fix false positive in `out_of_bounds_indexing`
1573* Fix false positive in `new_without_default_derive`
1574* Fix false positive in `string_lit_as_bytes`
1575* Fix false negative in `out_of_bounds_indexing`
1576* Fix false negative in `use_self`. It will now also check existential types
1577* Fix incorrect suggestion for `redundant_closure_call`
1578* Fix various suggestions that contained expanded macros
1579* Fix `bool_comparison` triggering 3 times on on on the same code
1580* Expand `trivially_copy_pass_by_ref` to work on trait methods
1581* Improve suggestion for `needless_range_loop`
1582* Move `needless_pass_by_value` from `pedantic` group to `style`
1583
1584## Rust 1.31
1585
1586Released 2018-12-06
1587
1588[125907ad..2e26fdc2](https://github.com/rust-lang/rust-clippy/compare/125907ad..2e26fdc2)
1589
1590* Clippy has been relicensed under a dual MIT / Apache license.
1591 See [#3093](https://github.com/rust-lang/rust-clippy/issues/3093) for more
1592 information.
1593* With Rust 1.31, Clippy is no longer available via crates.io. The recommended
1594 installation method is via `rustup component add clippy`.
1595* New lints: [`redundant_pattern_matching`], [`unnecessary_filter_map`],
1596 [`unused_unit`], [`map_flatten`], [`mem_replace_option_with_none`]
1597* Fix ICE in `if_let_redundant_pattern_matching`
1598* Fix ICE in `needless_pass_by_value` when encountering a generic function
1599 argument with a lifetime parameter
1600* Fix ICE in `needless_range_loop`
1601* Fix ICE in `single_char_pattern` when encountering a constant value
1602* Fix false positive in `assign_op_pattern`
1603* Fix false positive in `boxed_local` on trait implementations
1604* Fix false positive in `cmp_owned`
1605* Fix false positive in `collapsible_if` when conditionals have comments
1606* Fix false positive in `double_parens`
1607* Fix false positive in `excessive_precision`
1608* Fix false positive in `explicit_counter_loop`
1609* Fix false positive in `fn_to_numeric_cast_with_truncation`
1610* Fix false positive in `map_clone`
1611* Fix false positive in `new_ret_no_self`
1612* Fix false positive in `new_without_default` when `new` is unsafe
1613* Fix false positive in `type_complexity` when using extern types
1614* Fix false positive in `useless_format`
1615* Fix false positive in `wrong_self_convention`
1616* Fix incorrect suggestion for `excessive_precision`
1617* Fix incorrect suggestion for `expect_fun_call`
1618* Fix incorrect suggestion for `get_unwrap`
1619* Fix incorrect suggestion for `useless_format`
1620* `fn_to_numeric_cast_with_truncation` lint can be disabled again
1621* Improve suggestions for `manual_memcpy`
1622* Improve help message for `needless_lifetimes`
1623
1624## Rust 1.30
1625
1626Released 2018-10-25
1627
1628[14207503...125907ad](https://github.com/rust-lang/rust-clippy/compare/14207503...125907ad)
1629
1630* Deprecate `assign_ops` lint
1631* New lints: [`mistyped_literal_suffixes`], [`ptr_offset_with_cast`],
1632 [`needless_collect`], [`copy_iterator`]
1633* `cargo clippy -V` now includes the Clippy commit hash of the Rust
1634 Clippy component
1635* Fix ICE in `implicit_hasher`
1636* Fix ICE when encountering `println!("{}" a);`
1637* Fix ICE when encountering a macro call in match statements
1638* Fix false positive in `default_trait_access`
1639* Fix false positive in `trivially_copy_pass_by_ref`
1640* Fix false positive in `similar_names`
1641* Fix false positive in `redundant_field_name`
1642* Fix false positive in `expect_fun_call`
1643* Fix false negative in `identity_conversion`
1644* Fix false negative in `explicit_counter_loop`
1645* Fix `range_plus_one` suggestion and false negative
1646* `print_with_newline` / `write_with_newline`: don't warn about string with several `\n`s in them
1647* Fix `useless_attribute` to also whitelist `unused_extern_crates`
1648* Fix incorrect suggestion for `single_char_pattern`
1649* Improve suggestion for `identity_conversion` lint
1650* Move `explicit_iter_loop` and `explicit_into_iter_loop` from `style` group to `pedantic`
1651* Move `range_plus_one` and `range_minus_one` from `nursery` group to `complexity`
1652* Move `shadow_unrelated` from `restriction` group to `pedantic`
1653* Move `indexing_slicing` from `pedantic` group to `restriction`
1654
1655## Rust 1.29
1656
1657Released 2018-09-13
1658
1659[v0.0.212...14207503](https://github.com/rust-lang/rust-clippy/compare/v0.0.212...14207503)
1660
1661* :tada: :tada: **Rust 1.29 is the first stable Rust that includes a bundled Clippy** :tada:
1662 :tada:
1663 You can now run `rustup component add clippy-preview` and then `cargo
1664 clippy` to run Clippy. This should put an end to the continuous nightly
1665 upgrades for Clippy users.
1666* Clippy now follows the Rust versioning scheme instead of its own
1667* Fix ICE when encountering a `while let (..) = x.iter()` construct
1668* Fix false positives in `use_self`
1669* Fix false positive in `trivially_copy_pass_by_ref`
1670* Fix false positive in `useless_attribute` lint
1671* Fix false positive in `print_literal`
1672* Fix `use_self` regressions
1673* Improve lint message for `neg_cmp_op_on_partial_ord`
1674* Improve suggestion highlight for `single_char_pattern`
1675* Improve suggestions for various print/write macro lints
1676* Improve website header
1677
1678## 0.0.212 (2018-07-10)
1679* Rustup to *rustc 1.29.0-nightly (e06c87544 2018-07-06)*
1680
1681## 0.0.211
1682* Rustup to *rustc 1.28.0-nightly (e3bf634e0 2018-06-28)*
1683
1684## 0.0.210
1685* Rustup to *rustc 1.28.0-nightly (01cc982e9 2018-06-24)*
1686
1687## 0.0.209
1688* Rustup to *rustc 1.28.0-nightly (523097979 2018-06-18)*
1689
1690## 0.0.208
1691* Rustup to *rustc 1.28.0-nightly (86a8f1a63 2018-06-17)*
1692
1693## 0.0.207
1694* Rustup to *rustc 1.28.0-nightly (2a0062974 2018-06-09)*
1695
1696## 0.0.206
1697* Rustup to *rustc 1.28.0-nightly (5bf68db6e 2018-05-28)*
1698
1699## 0.0.205
1700* Rustup to *rustc 1.28.0-nightly (990d8aa74 2018-05-25)*
1701* Rename `unused_lifetimes` to `extra_unused_lifetimes` because of naming conflict with new rustc lint
1702
1703## 0.0.204
1704* Rustup to *rustc 1.28.0-nightly (71e87be38 2018-05-22)*
1705
1706## 0.0.203
1707* Rustup to *rustc 1.28.0-nightly (a3085756e 2018-05-19)*
1708* Clippy attributes are now of the form `clippy::cyclomatic_complexity` instead of `clippy(cyclomatic_complexity)`
1709
1710## 0.0.202
1711* Rustup to *rustc 1.28.0-nightly (952f344cd 2018-05-18)*
1712
1713## 0.0.201
1714* Rustup to *rustc 1.27.0-nightly (2f2a11dfc 2018-05-16)*
1715
1716## 0.0.200
1717* Rustup to *rustc 1.27.0-nightly (9fae15374 2018-05-13)*
1718
1719## 0.0.199
1720* Rustup to *rustc 1.27.0-nightly (ff2ac35db 2018-05-12)*
1721
1722## 0.0.198
1723* Rustup to *rustc 1.27.0-nightly (acd3871ba 2018-05-10)*
1724
1725## 0.0.197
1726* Rustup to *rustc 1.27.0-nightly (428ea5f6b 2018-05-06)*
1727
1728## 0.0.196
1729* Rustup to *rustc 1.27.0-nightly (e82261dfb 2018-05-03)*
1730
1731## 0.0.195
1732* Rustup to *rustc 1.27.0-nightly (ac3c2288f 2018-04-18)*
1733
1734## 0.0.194
1735* Rustup to *rustc 1.27.0-nightly (bd40cbbe1 2018-04-14)*
1736* New lints: [`cast_ptr_alignment`], [`transmute_ptr_to_ptr`], [`write_literal`], [`write_with_newline`], [`writeln_empty_string`]
1737
1738## 0.0.193
1739* Rustup to *rustc 1.27.0-nightly (eeea94c11 2018-04-06)*
1740
1741## 0.0.192
1742* Rustup to *rustc 1.27.0-nightly (fb44b4c0e 2018-04-04)*
1743* New lint: [`print_literal`]
1744
1745## 0.0.191
1746* Rustup to *rustc 1.26.0-nightly (ae544ee1c 2018-03-29)*
1747* Lint audit; categorize lints as style, correctness, complexity, pedantic, nursery, restriction.
1748
1749## 0.0.190
1750* Fix a bunch of intermittent cargo bugs
1751
1752## 0.0.189
1753* Rustup to *rustc 1.26.0-nightly (5508b2714 2018-03-18)*
1754
1755## 0.0.188
1756* Rustup to *rustc 1.26.0-nightly (392645394 2018-03-15)*
1757* New lint: [`while_immutable_condition`]
1758
1759## 0.0.187
1760* Rustup to *rustc 1.26.0-nightly (322d7f7b9 2018-02-25)*
1761* New lints: [`redundant_field_names`], [`suspicious_arithmetic_impl`], [`suspicious_op_assign_impl`]
1762
1763## 0.0.186
1764* Rustup to *rustc 1.25.0-nightly (0c6091fbd 2018-02-04)*
1765* Various false positive fixes
1766
1767## 0.0.185
1768* Rustup to *rustc 1.25.0-nightly (56733bc9f 2018-02-01)*
1769* New lint: [`question_mark`]
1770
1771## 0.0.184
1772* Rustup to *rustc 1.25.0-nightly (90eb44a58 2018-01-29)*
1773* New lints: [`double_comparisons`], [`empty_line_after_outer_attr`]
1774
1775## 0.0.183
1776* Rustup to *rustc 1.25.0-nightly (21882aad7 2018-01-28)*
1777* New lint: [`misaligned_transmute`]
1778
1779## 0.0.182
1780* Rustup to *rustc 1.25.0-nightly (a0dcecff9 2018-01-24)*
1781* New lint: [`decimal_literal_representation`]
1782
1783## 0.0.181
1784* Rustup to *rustc 1.25.0-nightly (97520ccb1 2018-01-21)*
1785* New lints: [`else_if_without_else`], [`option_option`], [`unit_arg`], [`unnecessary_fold`]
1786* Removed `unit_expr`
1787* Various false positive fixes for [`needless_pass_by_value`]
1788
1789## 0.0.180
1790* Rustup to *rustc 1.25.0-nightly (3f92e8d89 2018-01-14)*
1791
1792## 0.0.179
1793* Rustup to *rustc 1.25.0-nightly (61452e506 2018-01-09)*
1794
1795## 0.0.178
1796* Rustup to *rustc 1.25.0-nightly (ee220daca 2018-01-07)*
1797
1798## 0.0.177
1799* Rustup to *rustc 1.24.0-nightly (250b49205 2017-12-21)*
1800* New lint: [`match_as_ref`]
1801
1802## 0.0.176
1803* Rustup to *rustc 1.24.0-nightly (0077d128d 2017-12-14)*
1804
1805## 0.0.175
1806* Rustup to *rustc 1.24.0-nightly (bb42071f6 2017-12-01)*
1807
1808## 0.0.174
1809* Rustup to *rustc 1.23.0-nightly (63739ab7b 2017-11-21)*
1810
1811## 0.0.173
1812* Rustup to *rustc 1.23.0-nightly (33374fa9d 2017-11-20)*
1813
1814## 0.0.172
1815* Rustup to *rustc 1.23.0-nightly (d0f8e2913 2017-11-16)*
1816
1817## 0.0.171
1818* Rustup to *rustc 1.23.0-nightly (ff0f5de3b 2017-11-14)*
1819
1820## 0.0.170
1821* Rustup to *rustc 1.23.0-nightly (d6b06c63a 2017-11-09)*
1822
1823## 0.0.169
1824* Rustup to *rustc 1.23.0-nightly (3b82e4c74 2017-11-05)*
1825* New lints: [`just_underscores_and_digits`], `result_map_unwrap_or_else`, [`transmute_bytes_to_str`]
1826
1827## 0.0.168
1828* Rustup to *rustc 1.23.0-nightly (f0fe716db 2017-10-30)*
1829
1830## 0.0.167
1831* Rustup to *rustc 1.23.0-nightly (90ef3372e 2017-10-29)*
1832* New lints: `const_static_lifetime`, [`erasing_op`], [`fallible_impl_from`], [`println_empty_string`], [`useless_asref`]
1833
1834## 0.0.166
1835* Rustup to *rustc 1.22.0-nightly (b7960878b 2017-10-18)*
cdc7bbd5 1836* New lints: [`explicit_write`], `identity_conversion`, [`implicit_hasher`], `invalid_ref`, [`option_map_or_none`],
f20569fa
XL
1837 [`range_minus_one`], [`range_plus_one`], [`transmute_int_to_bool`], [`transmute_int_to_char`],
1838 [`transmute_int_to_float`]
1839
1840## 0.0.165
1841* Rust upgrade to rustc 1.22.0-nightly (0e6f4cf51 2017-09-27)
1842* New lint: [`mut_range_bound`]
1843
1844## 0.0.164
1845* Update to *rustc 1.22.0-nightly (6c476ce46 2017-09-25)*
1846* New lint: [`int_plus_one`]
1847
1848## 0.0.163
1849* Update to *rustc 1.22.0-nightly (14039a42a 2017-09-22)*
1850
1851## 0.0.162
1852* Update to *rustc 1.22.0-nightly (0701b37d9 2017-09-18)*
1853* New lint: [`chars_last_cmp`]
1854* Improved suggestions for [`needless_borrow`], [`ptr_arg`],
1855
1856## 0.0.161
1857* Update to *rustc 1.22.0-nightly (539f2083d 2017-09-13)*
1858
1859## 0.0.160
1860* Update to *rustc 1.22.0-nightly (dd08c3070 2017-09-12)*
1861
1862## 0.0.159
1863* Update to *rustc 1.22.0-nightly (eba374fb2 2017-09-11)*
1864* New lint: [`clone_on_ref_ptr`]
1865
1866## 0.0.158
1867* New lint: [`manual_memcpy`]
1868* [`cast_lossless`] no longer has redundant parentheses in its suggestions
1869* Update to *rustc 1.22.0-nightly (dead08cb3 2017-09-08)*
1870
1871## 0.0.157 - 2017-09-04
1872* Update to *rustc 1.22.0-nightly (981ce7d8d 2017-09-03)*
1873* New lint: `unit_expr`
1874
1875## 0.0.156 - 2017-09-03
1876* Update to *rustc 1.22.0-nightly (744dd6c1d 2017-09-02)*
1877
1878## 0.0.155
1879* Update to *rustc 1.21.0-nightly (c11f689d2 2017-08-29)*
1880* New lint: [`infinite_iter`], [`maybe_infinite_iter`], [`cast_lossless`]
1881
1882## 0.0.154
1883* Update to *rustc 1.21.0-nightly (2c0558f63 2017-08-24)*
1884* Fix [`use_self`] triggering inside derives
1885* Add support for linting an entire workspace with `cargo clippy --all`
1886* New lint: [`naive_bytecount`]
1887
1888## 0.0.153
1889* Update to *rustc 1.21.0-nightly (8c303ed87 2017-08-20)*
1890* New lint: [`use_self`]
1891
1892## 0.0.152
1893* Update to *rustc 1.21.0-nightly (df511d554 2017-08-14)*
1894
1895## 0.0.151
1896* Update to *rustc 1.21.0-nightly (13d94d5fa 2017-08-10)*
1897
1898## 0.0.150
1899* Update to *rustc 1.21.0-nightly (215e0b10e 2017-08-08)*
1900
1901## 0.0.148
1902* Update to *rustc 1.21.0-nightly (37c7d0ebb 2017-07-31)*
1903* New lints: [`unreadable_literal`], [`inconsistent_digit_grouping`], [`large_digit_groups`]
1904
1905## 0.0.147
1906* Update to *rustc 1.21.0-nightly (aac223f4f 2017-07-30)*
1907
1908## 0.0.146
1909* Update to *rustc 1.21.0-nightly (52a330969 2017-07-27)*
1910* Fixes false positives in `inline_always`
1911* Fixes false negatives in `panic_params`
1912
1913## 0.0.145
1914* Update to *rustc 1.20.0-nightly (afe145d22 2017-07-23)*
1915
1916## 0.0.144
1917* Update to *rustc 1.20.0-nightly (086eaa78e 2017-07-15)*
1918
1919## 0.0.143
1920* Update to *rustc 1.20.0-nightly (d84693b93 2017-07-09)*
1921* Fix `cargo clippy` crashing on `dylib` projects
1922* Fix false positives around `nested_while_let` and `never_loop`
1923
1924## 0.0.142
1925* Update to *rustc 1.20.0-nightly (067971139 2017-07-02)*
1926
1927## 0.0.141
1928* Rewrite of the `doc_markdown` lint.
1929* Deprecated [`range_step_by_zero`]
1930* New lint: [`iterator_step_by_zero`]
1931* New lint: [`needless_borrowed_reference`]
1932* Update to *rustc 1.20.0-nightly (69c65d296 2017-06-28)*
1933
1934## 0.0.140 - 2017-06-16
1935* Update to *rustc 1.19.0-nightly (258ae6dd9 2017-06-15)*
1936
1937## 0.0.139 — 2017-06-10
1938* Update to *rustc 1.19.0-nightly (4bf5c99af 2017-06-10)*
1939* Fix bugs with for loop desugaring
1940* Check for [`AsRef`]/[`AsMut`] arguments in [`wrong_self_convention`]
1941
1942## 0.0.138 — 2017-06-05
1943* Update to *rustc 1.19.0-nightly (0418fa9d3 2017-06-04)*
1944
1945## 0.0.137 — 2017-06-05
1946* Update to *rustc 1.19.0-nightly (6684d176c 2017-06-03)*
1947
1948## 0.0.136 — 2017—05—26
1949* Update to *rustc 1.19.0-nightly (557967766 2017-05-26)*
1950
1951## 0.0.135 — 2017—05—24
1952* Update to *rustc 1.19.0-nightly (5b13bff52 2017-05-23)*
1953
1954## 0.0.134 — 2017—05—19
1955* Update to *rustc 1.19.0-nightly (0ed1ec9f9 2017-05-18)*
1956
1957## 0.0.133 — 2017—05—14
1958* Update to *rustc 1.19.0-nightly (826d8f385 2017-05-13)*
1959
1960## 0.0.132 — 2017—05—05
1961* Fix various bugs and some ices
1962
1963## 0.0.131 — 2017—05—04
1964* Update to *rustc 1.19.0-nightly (2d4ed8e0c 2017-05-03)*
1965
1966## 0.0.130 — 2017—05—03
1967* Update to *rustc 1.19.0-nightly (6a5fc9eec 2017-05-02)*
1968
1969## 0.0.129 — 2017-05-01
1970* Update to *rustc 1.19.0-nightly (06fb4d256 2017-04-30)*
1971
1972## 0.0.128 — 2017-04-28
1973* Update to *rustc 1.18.0-nightly (94e884b63 2017-04-27)*
1974
1975## 0.0.127 — 2017-04-27
1976* Update to *rustc 1.18.0-nightly (036983201 2017-04-26)*
1977* New lint: [`needless_continue`]
1978
1979## 0.0.126 — 2017-04-24
1980* Update to *rustc 1.18.0-nightly (2bd4b5c6d 2017-04-23)*
1981
1982## 0.0.125 — 2017-04-19
1983* Update to *rustc 1.18.0-nightly (9f2abadca 2017-04-18)*
1984
1985## 0.0.124 — 2017-04-16
1986* Update to *rustc 1.18.0-nightly (d5cf1cb64 2017-04-15)*
1987
1988## 0.0.123 — 2017-04-07
1989* Fix various false positives
1990
1991## 0.0.122 — 2017-04-07
1992* Rustup to *rustc 1.18.0-nightly (91ae22a01 2017-04-05)*
1993* New lint: [`op_ref`]
1994
1995## 0.0.121 — 2017-03-21
1996* Rustup to *rustc 1.17.0-nightly (134c4a0f0 2017-03-20)*
1997
1998## 0.0.120 — 2017-03-17
1999* Rustup to *rustc 1.17.0-nightly (0aeb9c129 2017-03-15)*
2000
2001## 0.0.119 — 2017-03-13
2002* Rustup to *rustc 1.17.0-nightly (824c9ebbd 2017-03-12)*
2003
2004## 0.0.118 — 2017-03-05
2005* Rustup to *rustc 1.17.0-nightly (b1e31766d 2017-03-03)*
2006
2007## 0.0.117 — 2017-03-01
2008* Rustup to *rustc 1.17.0-nightly (be760566c 2017-02-28)*
2009
2010## 0.0.116 — 2017-02-28
2011* Fix `cargo clippy` on 64 bit windows systems
2012
2013## 0.0.115 — 2017-02-27
2014* Rustup to *rustc 1.17.0-nightly (60a0edc6c 2017-02-26)*
2015* New lints: [`zero_ptr`], [`never_loop`], [`mut_from_ref`]
2016
2017## 0.0.114 — 2017-02-08
2018* Rustup to *rustc 1.17.0-nightly (c49d10207 2017-02-07)*
2019* Tests are now ui tests (testing the exact output of rustc)
2020
2021## 0.0.113 — 2017-02-04
2022* Rustup to *rustc 1.16.0-nightly (eedaa94e3 2017-02-02)*
2023* New lint: [`large_enum_variant`]
2024* `explicit_into_iter_loop` provides suggestions
2025
2026## 0.0.112 — 2017-01-27
2027* Rustup to *rustc 1.16.0-nightly (df8debf6d 2017-01-25)*
2028
2029## 0.0.111 — 2017-01-21
2030* Rustup to *rustc 1.16.0-nightly (a52da95ce 2017-01-20)*
2031
2032## 0.0.110 — 2017-01-20
2033* Add badges and categories to `Cargo.toml`
2034
2035## 0.0.109 — 2017-01-19
2036* Update to *rustc 1.16.0-nightly (c07a6ae77 2017-01-17)*
2037
2038## 0.0.108 — 2017-01-12
2039* Update to *rustc 1.16.0-nightly (2782e8f8f 2017-01-12)*
2040
2041## 0.0.107 — 2017-01-11
2042* Update regex dependency
2043* Fix FP when matching `&&mut` by `&ref`
2044* Reintroduce `for (_, x) in &mut hash_map` -> `for x in hash_map.values_mut()`
2045* New lints: [`unused_io_amount`], [`forget_ref`], [`short_circuit_statement`]
2046
2047## 0.0.106 — 2017-01-04
2048* Fix FP introduced by rustup in [`wrong_self_convention`]
2049
2050## 0.0.105 — 2017-01-04
2051* Update to *rustc 1.16.0-nightly (468227129 2017-01-03)*
2052* New lints: [`deref_addrof`], [`double_parens`], [`pub_enum_variant_names`]
2053* Fix suggestion in [`new_without_default`]
2054* FP fix in [`absurd_extreme_comparisons`]
2055
2056## 0.0.104 — 2016-12-15
2057* Update to *rustc 1.15.0-nightly (8f02c429a 2016-12-15)*
2058
2059## 0.0.103 — 2016-11-25
2060* Update to *rustc 1.15.0-nightly (d5814b03e 2016-11-23)*
2061
2062## 0.0.102 — 2016-11-24
2063* Update to *rustc 1.15.0-nightly (3bf2be9ce 2016-11-22)*
2064
2065## 0.0.101 — 2016-11-23
2066* Update to *rustc 1.15.0-nightly (7b3eeea22 2016-11-21)*
2067* New lint: [`string_extend_chars`]
2068
2069## 0.0.100 — 2016-11-20
2070* Update to *rustc 1.15.0-nightly (ac635aa95 2016-11-18)*
2071
2072## 0.0.99 — 2016-11-18
2073* Update to rustc 1.15.0-nightly (0ed951993 2016-11-14)
2074* New lint: [`get_unwrap`]
2075
2076## 0.0.98 — 2016-11-08
2077* Fixes an issue due to a change in how cargo handles `--sysroot`, which broke `cargo clippy`
2078
2079## 0.0.97 — 2016-11-03
2080* For convenience, `cargo clippy` defines a `cargo-clippy` feature. This was
2081 previously added for a short time under the name `clippy` but removed for
2082 compatibility.
2083* `cargo clippy --help` is more helping (and less helpful :smile:)
2084* Rustup to *rustc 1.14.0-nightly (5665bdf3e 2016-11-02)*
2085* New lints: [`if_let_redundant_pattern_matching`], [`partialeq_ne_impl`]
2086
2087## 0.0.96 — 2016-10-22
2088* Rustup to *rustc 1.14.0-nightly (f09420685 2016-10-20)*
2089* New lint: [`iter_skip_next`]
2090
2091## 0.0.95 — 2016-10-06
2092* Rustup to *rustc 1.14.0-nightly (3210fd5c2 2016-10-05)*
2093
2094## 0.0.94 — 2016-10-04
2095* Fixes bustage on Windows due to forbidden directory name
2096
2097## 0.0.93 — 2016-10-03
2098* Rustup to *rustc 1.14.0-nightly (144af3e97 2016-10-02)*
2099* `option_map_unwrap_or` and `option_map_unwrap_or_else` are now
2100 allowed by default.
2101* New lint: [`explicit_into_iter_loop`]
2102
2103## 0.0.92 — 2016-09-30
2104* Rustup to *rustc 1.14.0-nightly (289f3a4ca 2016-09-29)*
2105
2106## 0.0.91 — 2016-09-28
2107* Rustup to *rustc 1.13.0-nightly (d0623cf7b 2016-09-26)*
2108
2109## 0.0.90 — 2016-09-09
2110* Rustup to *rustc 1.13.0-nightly (f1f40f850 2016-09-09)*
2111
2112## 0.0.89 — 2016-09-06
2113* Rustup to *rustc 1.13.0-nightly (cbe4de78e 2016-09-05)*
2114
2115## 0.0.88 — 2016-09-04
2116* Rustup to *rustc 1.13.0-nightly (70598e04f 2016-09-03)*
2117* The following lints are not new but were only usable through the `clippy`
2118 lint groups: [`filter_next`], `for_loop_over_option`,
2119 `for_loop_over_result` and [`match_overlapping_arm`]. You should now be
2120 able to `#[allow/deny]` them individually and they are available directly
2121 through `cargo clippy`.
2122
2123## 0.0.87 — 2016-08-31
2124* Rustup to *rustc 1.13.0-nightly (eac41469d 2016-08-30)*
2125* New lints: [`builtin_type_shadow`]
2126* Fix FP in [`zero_prefixed_literal`] and `0b`/`0o`
2127
2128## 0.0.86 — 2016-08-28
2129* Rustup to *rustc 1.13.0-nightly (a23064af5 2016-08-27)*
2130* New lints: [`missing_docs_in_private_items`], [`zero_prefixed_literal`]
2131
2132## 0.0.85 — 2016-08-19
2133* Fix ICE with [`useless_attribute`]
2134* [`useless_attribute`] ignores `unused_imports` on `use` statements
2135
2136## 0.0.84 — 2016-08-18
2137* Rustup to *rustc 1.13.0-nightly (aef6971ca 2016-08-17)*
2138
2139## 0.0.83 — 2016-08-17
2140* Rustup to *rustc 1.12.0-nightly (1bf5fa326 2016-08-16)*
2141* New lints: [`print_with_newline`], [`useless_attribute`]
2142
2143## 0.0.82 — 2016-08-17
2144* Rustup to *rustc 1.12.0-nightly (197be89f3 2016-08-15)*
2145* New lint: [`module_inception`]
2146
2147## 0.0.81 — 2016-08-14
2148* Rustup to *rustc 1.12.0-nightly (1deb02ea6 2016-08-12)*
2149* New lints: [`eval_order_dependence`], [`mixed_case_hex_literals`], [`unseparated_literal_suffix`]
2150* False positive fix in [`too_many_arguments`]
2151* Addition of functionality to [`needless_borrow`]
2152* Suggestions for [`clone_on_copy`]
2153* Bug fix in [`wrong_self_convention`]
2154* Doc improvements
2155
2156## 0.0.80 — 2016-07-31
2157* Rustup to *rustc 1.12.0-nightly (1225e122f 2016-07-30)*
2158* New lints: [`misrefactored_assign_op`], [`serde_api_misuse`]
2159
2160## 0.0.79 — 2016-07-10
2161* Rustup to *rustc 1.12.0-nightly (f93aaf84c 2016-07-09)*
2162* Major suggestions refactoring
2163
2164## 0.0.78 — 2016-07-02
2165* Rustup to *rustc 1.11.0-nightly (01411937f 2016-07-01)*
2166* New lints: [`wrong_transmute`], [`double_neg`], [`filter_map`]
2167* For compatibility, `cargo clippy` does not defines the `clippy` feature
2168 introduced in 0.0.76 anymore
2169* [`collapsible_if`] now considers `if let`
2170
2171## 0.0.77 — 2016-06-21
2172* Rustup to *rustc 1.11.0-nightly (5522e678b 2016-06-20)*
2173* New lints: `stutter` and [`iter_nth`]
2174
2175## 0.0.76 — 2016-06-10
2176* Rustup to *rustc 1.11.0-nightly (7d2f75a95 2016-06-09)*
2177* `cargo clippy` now automatically defines the `clippy` feature
2178* New lint: [`not_unsafe_ptr_arg_deref`]
2179
2180## 0.0.75 — 2016-06-08
2181* Rustup to *rustc 1.11.0-nightly (763f9234b 2016-06-06)*
2182
2183## 0.0.74 — 2016-06-07
2184* Fix bug with `cargo-clippy` JSON parsing
2185* Add the `CLIPPY_DISABLE_DOCS_LINKS` environment variable to deactivate the
2186 “for further information visit *lint-link*” message.
2187
2188## 0.0.73 — 2016-06-05
2189* Fix false positives in [`useless_let_if_seq`]
2190
2191## 0.0.72 — 2016-06-04
2192* Fix false positives in [`useless_let_if_seq`]
2193
2194## 0.0.71 — 2016-05-31
2195* Rustup to *rustc 1.11.0-nightly (a967611d8 2016-05-30)*
2196* New lint: [`useless_let_if_seq`]
2197
2198## 0.0.70 — 2016-05-28
2199* Rustup to *rustc 1.10.0-nightly (7bddce693 2016-05-27)*
2200* [`invalid_regex`] and [`trivial_regex`] can now warn on `RegexSet::new`,
2201 `RegexBuilder::new` and byte regexes
2202
2203## 0.0.69 — 2016-05-20
2204* Rustup to *rustc 1.10.0-nightly (476fe6eef 2016-05-21)*
2205* [`used_underscore_binding`] has been made `Allow` temporarily
2206
2207## 0.0.68 — 2016-05-17
2208* Rustup to *rustc 1.10.0-nightly (cd6a40017 2016-05-16)*
2209* New lint: [`unnecessary_operation`]
2210
2211## 0.0.67 — 2016-05-12
2212* Rustup to *rustc 1.10.0-nightly (22ac88f1a 2016-05-11)*
2213
2214## 0.0.66 — 2016-05-11
2215* New `cargo clippy` subcommand
2216* New lints: [`assign_op_pattern`], [`assign_ops`], [`needless_borrow`]
2217
2218## 0.0.65 — 2016-05-08
2219* Rustup to *rustc 1.10.0-nightly (62e2b2fb7 2016-05-06)*
2220* New lints: [`float_arithmetic`], [`integer_arithmetic`]
2221
2222## 0.0.64 — 2016-04-26
2223* Rustup to *rustc 1.10.0-nightly (645dd013a 2016-04-24)*
cdc7bbd5 2224* New lints: `temporary_cstring_as_ptr`, [`unsafe_removed_from_name`], and [`mem_forget`]
f20569fa
XL
2225
2226## 0.0.63 — 2016-04-08
2227* Rustup to *rustc 1.9.0-nightly (7979dd608 2016-04-07)*
2228
2229## 0.0.62 — 2016-04-07
2230* Rustup to *rustc 1.9.0-nightly (bf5da36f1 2016-04-06)*
2231
2232## 0.0.61 — 2016-04-03
2233* Rustup to *rustc 1.9.0-nightly (5ab11d72c 2016-04-02)*
2234* New lint: [`invalid_upcast_comparisons`]
2235
2236## 0.0.60 — 2016-04-01
2237* Rustup to *rustc 1.9.0-nightly (e1195c24b 2016-03-31)*
2238
2239## 0.0.59 — 2016-03-31
2240* Rustup to *rustc 1.9.0-nightly (30a3849f2 2016-03-30)*
2241* New lints: [`logic_bug`], [`nonminimal_bool`]
2242* Fixed: [`match_same_arms`] now ignores arms with guards
2243* Improved: [`useless_vec`] now warns on `for … in vec![…]`
2244
2245## 0.0.58 — 2016-03-27
2246* Rustup to *rustc 1.9.0-nightly (d5a91e695 2016-03-26)*
2247* New lint: [`doc_markdown`]
2248
2249## 0.0.57 — 2016-03-27
2250* Update to *rustc 1.9.0-nightly (a1e29daf1 2016-03-25)*
2251* Deprecated lints: [`str_to_string`], [`string_to_string`], [`unstable_as_slice`], [`unstable_as_mut_slice`]
2252* New lint: [`crosspointer_transmute`]
2253
2254## 0.0.56 — 2016-03-23
2255* Update to *rustc 1.9.0-nightly (0dcc413e4 2016-03-22)*
2256* New lints: [`many_single_char_names`] and [`similar_names`]
2257
2258## 0.0.55 — 2016-03-21
2259* Update to *rustc 1.9.0-nightly (02310fd31 2016-03-19)*
2260
2261## 0.0.54 — 2016-03-16
2262* Update to *rustc 1.9.0-nightly (c66d2380a 2016-03-15)*
2263
2264## 0.0.53 — 2016-03-15
2265* Add a [configuration file]
2266
2267## ~~0.0.52~~
2268
2269## 0.0.51 — 2016-03-13
2270* Add `str` to types considered by [`len_zero`]
2271* New lints: [`indexing_slicing`]
2272
2273## 0.0.50 — 2016-03-11
2274* Update to *rustc 1.9.0-nightly (c9629d61c 2016-03-10)*
2275
2276## 0.0.49 — 2016-03-09
2277* Update to *rustc 1.9.0-nightly (eabfc160f 2016-03-08)*
cdc7bbd5 2278* New lints: [`overflow_check_conditional`], `unused_label`, [`new_without_default`]
f20569fa
XL
2279
2280## 0.0.48 — 2016-03-07
2281* Fixed: ICE in [`needless_range_loop`] with globals
2282
2283## 0.0.47 — 2016-03-07
2284* Update to *rustc 1.9.0-nightly (998a6720b 2016-03-07)*
2285* New lint: [`redundant_closure_call`]
2286
2287[`AsMut`]: https://doc.rust-lang.org/std/convert/trait.AsMut.html
2288[`AsRef`]: https://doc.rust-lang.org/std/convert/trait.AsRef.html
2289[configuration file]: ./rust-clippy#configuration
2290[pull3665]: https://github.com/rust-lang/rust-clippy/pull/3665
2291[adding_lints]: https://github.com/rust-lang/rust-clippy/blob/master/doc/adding_lints.md
cdc7bbd5 2292[`README.md`]: https://github.com/rust-lang/rust-clippy/blob/master/README.md
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2293
2294<!-- lint disable no-unused-definitions -->
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2772<!-- end autogenerated links to lint list -->