src/test/ui/closures/2229_closure_analysis/migrations/multi_diagnostics.stderr

   1 error: changes to closure capture in Rust 2021 will affect drop order and which traits the closure implements
   2   --> $DIR/multi_diagnostics.rs:37:13
   3    |
   4 LL |     let c = || {
   5    |             ^^ in Rust 2018, this closure implements `Clone` as `f1` implements `Clone`, but in Rust 2021, this closure will no longer implement `Clone` because `f1` is not fully captured and `f1.0` does not implement `Clone`
   6 ...
   7 LL |         let _f_1 = f1.0;
   8    |                    ---- in Rust 2018, this closure captures all of `f1`, but in Rust 2021, it will only capture `f1.0`
   9 LL |
  10 LL |         let _f_2 = f2.1;
  11    |                    ---- in Rust 2018, this closure captures all of `f2`, but in Rust 2021, it will only capture `f2.1`
  12 ...
  13 LL | }
  14    | - in Rust 2018, `f2` is dropped here, but in Rust 2021, only `f2.1` will be dropped here as part of the closure
  15    |
  16 note: the lint level is defined here
  17   --> $DIR/multi_diagnostics.rs:2:9
  18    |
  19 LL | #![deny(rust_2021_incompatible_closure_captures)]
  20    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  21    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html>
  22 help: add a dummy let to cause `f1`, `f2` to be fully captured
  23    |
  24 LL ~     let c = || {
  25 LL +         let _ = (&f1, &f2);
  26    |
  27
  28 error: changes to closure capture in Rust 2021 will affect which traits the closure implements
  29   --> $DIR/multi_diagnostics.rs:56:13
  30    |
  31 LL |     let c = || {
  32    |             ^^ in Rust 2018, this closure implements `Clone` as `f1` implements `Clone`, but in Rust 2021, this closure will no longer implement `Clone` because `f1` is not fully captured and `f1.0` does not implement `Clone`
  33 ...
  34 LL |         let _f_1 = f1.0;
  35    |                    ---- in Rust 2018, this closure captures all of `f1`, but in Rust 2021, it will only capture `f1.0`
  36    |
  37    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html>
  38 help: add a dummy let to cause `f1` to be fully captured
  39    |
  40 LL ~     let c = || {
  41 LL +         let _ = &f1;
  42    |
  43
  44 error: changes to closure capture in Rust 2021 will affect which traits the closure implements
  45   --> $DIR/multi_diagnostics.rs:81:13
  46    |
  47 LL |     let c = || {
  48    |             ^^
  49    |             |
  50    |             in Rust 2018, this closure implements `Clone` as `f1` implements `Clone`, but in Rust 2021, this closure will no longer implement `Clone` because `f1` is not fully captured and `f1.0` does not implement `Clone`
  51    |             in Rust 2018, this closure implements `Clone` as `f1` implements `Clone`, but in Rust 2021, this closure will no longer implement `Clone` because `f1` is not fully captured and `f1.2` does not implement `Clone`
  52 ...
  53 LL |         let _f_0 = f1.0;
  54    |                    ---- in Rust 2018, this closure captures all of `f1`, but in Rust 2021, it will only capture `f1.0`
  55 LL |
  56 LL |         let _f_2 = f1.2;
  57    |                    ---- in Rust 2018, this closure captures all of `f1`, but in Rust 2021, it will only capture `f1.2`
  58    |
  59    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html>
  60 help: add a dummy let to cause `f1` to be fully captured
  61    |
  62 LL ~     let c = || {
  63 LL +         let _ = &f1;
  64    |
  65
  66 error: changes to closure capture in Rust 2021 will affect drop order and which traits the closure implements
  67   --> $DIR/multi_diagnostics.rs:100:13
  68    |
  69 LL |     let c = || {
  70    |             ^^ in Rust 2018, this closure implements `Clone` as `f1` implements `Clone`, but in Rust 2021, this closure will no longer implement `Clone` because `f1` is not fully captured and `f1.0` does not implement `Clone`
  71 ...
  72 LL |         let _f_0 = f1.0;
  73    |                    ---- in Rust 2018, this closure captures all of `f1`, but in Rust 2021, it will only capture `f1.0`
  74 LL |
  75 LL |         let _f_1 = f1.1;
  76    |                    ---- in Rust 2018, this closure captures all of `f1`, but in Rust 2021, it will only capture `f1.1`
  77 ...
  78 LL | }
  79    | -
  80    | |
  81    | in Rust 2018, `f1` is dropped here, but in Rust 2021, only `f1.0` will be dropped here as part of the closure
  82    | in Rust 2018, `f1` is dropped here, but in Rust 2021, only `f1.1` will be dropped here as part of the closure
  83    |
  84    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html>
  85 help: add a dummy let to cause `f1` to be fully captured
  86    |
  87 LL ~     let c = || {
  88 LL +         let _ = &f1;
  89    |
  90
  91 error: changes to closure capture in Rust 2021 will affect which traits the closure implements
  92   --> $DIR/multi_diagnostics.rs:133:19
  93    |
  94 LL |     thread::spawn(move || unsafe {
  95    |                   ^^^^^^^^^^^^^^
  96    |                   |
  97    |                   in Rust 2018, this closure implements `Sync` as `fptr1` implements `Sync`, but in Rust 2021, this closure will no longer implement `Sync` because `fptr1` is not fully captured and `fptr1.0.0` does not implement `Sync`
  98    |                   in Rust 2018, this closure implements `Send` as `fptr1` implements `Send`, but in Rust 2021, this closure will no longer implement `Send` because `fptr1` is not fully captured and `fptr1.0.0` does not implement `Send`
  99    |                   in Rust 2018, this closure implements `Send` as `fptr2` implements `Send`, but in Rust 2021, this closure will no longer implement `Send` because `fptr2` is not fully captured and `fptr2.0` does not implement `Send`
 100 ...
 101 LL |         *fptr1.0.0 = 20;
 102    |         ---------- in Rust 2018, this closure captures all of `fptr1`, but in Rust 2021, it will only capture `fptr1.0.0`
 103 LL |
 104 LL |         *fptr2.0 = 20;
 105    |         -------- in Rust 2018, this closure captures all of `fptr2`, but in Rust 2021, it will only capture `fptr2.0`
 106    |
 107    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html>
 108 help: add a dummy let to cause `fptr1`, `fptr2` to be fully captured
 109    |
 110 LL ~     thread::spawn(move || { let _ = (&fptr1, &fptr2); unsafe {
 111 LL |
 112 LL |
 113 LL |
 114 LL |
 115 LL |
 116  ...
 117
 118 error: aborting due to 5 previous errors
 119