src/test/ui/non-fmt-panic.stderr

   1 warning: panic message contains a brace
   2   --> $DIR/non-fmt-panic.rs:11:29
   3    |
   4 LL |     panic!("here's a brace: {");
   5    |                             ^
   6    |
   7    = note: `#[warn(non_fmt_panic)]` on by default
   8    = note: this message is not used as a format string, but will be in Rust 2021
   9 help: add a "{}" format string to use the message literally
  10    |
  11 LL |     panic!("{}", "here's a brace: {");
  12    |            ^^^^^
  13
  14 warning: panic message contains a brace
  15   --> $DIR/non-fmt-panic.rs:12:31
  16    |
  17 LL |     std::panic!("another one: }");
  18    |                               ^
  19    |
  20    = note: this message is not used as a format string, but will be in Rust 2021
  21 help: add a "{}" format string to use the message literally
  22    |
  23 LL |     std::panic!("{}", "another one: }");
  24    |                 ^^^^^
  25
  26 warning: panic message contains an unused formatting placeholder
  27   --> $DIR/non-fmt-panic.rs:13:25
  28    |
  29 LL |     core::panic!("Hello {}");
  30    |                         ^^
  31    |
  32    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
  33 help: add the missing argument
  34    |
  35 LL |     core::panic!("Hello {}", ...);
  36    |                            ^^^^^
  37 help: or add a "{}" format string to use the message literally
  38    |
  39 LL |     core::panic!("{}", "Hello {}");
  40    |                  ^^^^^
  41
  42 warning: panic message contains unused formatting placeholders
  43   --> $DIR/non-fmt-panic.rs:14:21
  44    |
  45 LL |     assert!(false, "{:03x} {test} bla");
  46    |                     ^^^^^^ ^^^^^^
  47    |
  48    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
  49 help: add the missing arguments
  50    |
  51 LL |     assert!(false, "{:03x} {test} bla", ...);
  52    |                                       ^^^^^
  53 help: or add a "{}" format string to use the message literally
  54    |
  55 LL |     assert!(false, "{}", "{:03x} {test} bla");
  56    |                    ^^^^^
  57
  58 warning: panic message is not a string literal
  59   --> $DIR/non-fmt-panic.rs:16:20
  60    |
  61 LL |     assert!(false, S);
  62    |                    ^
  63    |
  64    = note: this is no longer accepted in Rust 2021
  65 help: add a "{}" format string to Display the message
  66    |
  67 LL |     assert!(false, "{}", S);
  68    |                    ^^^^^
  69
  70 warning: panic message contains braces
  71   --> $DIR/non-fmt-panic.rs:18:27
  72    |
  73 LL |     debug_assert!(false, "{{}} bla");
  74    |                           ^^^^
  75    |
  76    = note: this message is not used as a format string, but will be in Rust 2021
  77 help: add a "{}" format string to use the message literally
  78    |
  79 LL |     debug_assert!(false, "{}", "{{}} bla");
  80    |                          ^^^^^
  81
  82 warning: panic message is not a string literal
  83   --> $DIR/non-fmt-panic.rs:19:12
  84    |
  85 LL |     panic!(C);
  86    |            ^
  87    |
  88    = note: this is no longer accepted in Rust 2021
  89 help: add a "{}" format string to Display the message
  90    |
  91 LL |     panic!("{}", C);
  92    |            ^^^^^
  93 help: or use std::panic::panic_any instead
  94    |
  95 LL |     std::panic::panic_any(C);
  96    |     ^^^^^^^^^^^^^^^^^^^^^
  97
  98 warning: panic message is not a string literal
  99   --> $DIR/non-fmt-panic.rs:20:12
 100    |
 101 LL |     panic!(S);
 102    |            ^
 103    |
 104    = note: this is no longer accepted in Rust 2021
 105 help: add a "{}" format string to Display the message
 106    |
 107 LL |     panic!("{}", S);
 108    |            ^^^^^
 109 help: or use std::panic::panic_any instead
 110    |
 111 LL |     std::panic::panic_any(S);
 112    |     ^^^^^^^^^^^^^^^^^^^^^
 113
 114 warning: panic message is not a string literal
 115   --> $DIR/non-fmt-panic.rs:21:17
 116    |
 117 LL |     std::panic!(123);
 118    |                 ^^^
 119    |
 120    = note: this is no longer accepted in Rust 2021
 121 help: add a "{}" format string to Display the message
 122    |
 123 LL |     std::panic!("{}", 123);
 124    |                 ^^^^^
 125 help: or use std::panic::panic_any instead
 126    |
 127 LL |     std::panic::panic_any(123);
 128    |     ^^^^^^^^^^^^^^^^^^^^^
 129
 130 warning: panic message is not a string literal
 131   --> $DIR/non-fmt-panic.rs:22:18
 132    |
 133 LL |     core::panic!(&*"abc");
 134    |                  ^^^^^^^
 135    |
 136    = note: this is no longer accepted in Rust 2021
 137 help: add a "{}" format string to Display the message
 138    |
 139 LL |     core::panic!("{}", &*"abc");
 140    |                  ^^^^^
 141
 142 warning: panic message contains an unused formatting placeholder
 143   --> $DIR/non-fmt-panic.rs:23:12
 144    |
 145 LL |     panic!(concat!("{", "}"));
 146    |            ^^^^^^^^^^^^^^^^^
 147    |
 148    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
 149 help: add the missing argument
 150    |
 151 LL |     panic!(concat!("{", "}"), ...);
 152    |                             ^^^^^
 153 help: or add a "{}" format string to use the message literally
 154    |
 155 LL |     panic!("{}", concat!("{", "}"));
 156    |            ^^^^^
 157
 158 warning: panic message contains braces
 159   --> $DIR/non-fmt-panic.rs:24:5
 160    |
 161 LL |     panic!(concat!("{", "{"));
 162    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
 163    |
 164    = note: this message is not used as a format string, but will be in Rust 2021
 165 help: add a "{}" format string to use the message literally
 166    |
 167 LL |     panic!("{}", concat!("{", "{"));
 168    |            ^^^^^
 169
 170 warning: panic message contains an unused formatting placeholder
 171   --> $DIR/non-fmt-panic.rs:26:37
 172    |
 173 LL |     fancy_panic::fancy_panic!("test {} 123");
 174    |                                     ^^
 175    |
 176    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
 177
 178 warning: panic message is not a string literal
 179   --> $DIR/non-fmt-panic.rs:29:31
 180    |
 181 LL |     fancy_panic::fancy_panic!(S);
 182    |                               ^
 183    |
 184    = note: this is no longer accepted in Rust 2021
 185
 186 warning: panic message is not a string literal
 187   --> $DIR/non-fmt-panic.rs:36:12
 188    |
 189 LL |     panic!(a!());
 190    |            ^^^^
 191    |
 192    = note: this is no longer accepted in Rust 2021
 193 help: add a "{}" format string to Display the message
 194    |
 195 LL |     panic!("{}", a!());
 196    |            ^^^^^
 197 help: or use std::panic::panic_any instead
 198    |
 199 LL |     std::panic::panic_any(a!());
 200    |     ^^^^^^^^^^^^^^^^^^^^^
 201
 202 warning: panic message is not a string literal
 203   --> $DIR/non-fmt-panic.rs:38:12
 204    |
 205 LL |     panic!(format!("{}", 1));
 206    |            ^^^^^^^^^^^^^^^^
 207    |
 208    = note: this is no longer accepted in Rust 2021
 209    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
 210 help: remove the `format!(..)` macro call
 211    |
 212 LL |     panic!("{}", 1);
 213    |           --     --
 214
 215 warning: panic message is not a string literal
 216   --> $DIR/non-fmt-panic.rs:40:12
 217    |
 218 LL |     panic![123];
 219    |            ^^^
 220    |
 221    = note: this is no longer accepted in Rust 2021
 222 help: add a "{}" format string to Display the message
 223    |
 224 LL |     panic!["{}", 123];
 225    |            ^^^^^
 226 help: or use std::panic::panic_any instead
 227    |
 228 LL |     std::panic::panic_any(123);
 229    |     ^^^^^^^^^^^^^^^^^^^^^^   ^
 230
 231 warning: panic message is not a string literal
 232   --> $DIR/non-fmt-panic.rs:41:12
 233    |
 234 LL |     panic!{123};
 235    |            ^^^
 236    |
 237    = note: this is no longer accepted in Rust 2021
 238 help: add a "{}" format string to Display the message
 239    |
 240 LL |     panic!{"{}", 123};
 241    |            ^^^^^
 242 help: or use std::panic::panic_any instead
 243    |
 244 LL |     std::panic::panic_any(123);
 245    |     ^^^^^^^^^^^^^^^^^^^^^^   ^
 246
 247 warning: 18 warnings emitted
 248