src/test/ui/issues/issue-49934.stderr

   1 warning: `#[derive]` does nothing on macro invocations
   2   --> $DIR/issue-49934.rs:13:5
   3    |
   4 LL |     #[derive(Debug)]
   5    |     ^^^^^^^^^^^^^^^^
   6    |
   7    = note: this may become a hard error in a future release
   8
   9 warning: unused attribute
  10   --> $DIR/issue-49934.rs:19:5
  11    |
  12 LL |     #[derive(Debug)]
  13    |     ^^^^^^^^^^^^^^^^
  14    |
  15 note: the lint level is defined here
  16   --> $DIR/issue-49934.rs:4:9
  17    |
  18 LL | #![warn(unused_attributes)]
  19    |         ^^^^^^^^^^^^^^^^^
  20
  21 warning: unused attribute
  22   --> $DIR/issue-49934.rs:23:5
  23    |
  24 LL |     #[derive(Debug)]
  25    |     ^^^^^^^^^^^^^^^^
  26
  27 warning: unused attribute
  28   --> $DIR/issue-49934.rs:27:13
  29    |
  30 LL |     let _ = #[derive(Debug)] "Hello, world!";
  31    |             ^^^^^^^^^^^^^^^^
  32
  33 warning: unused attribute
  34   --> $DIR/issue-49934.rs:32:9
  35    |
  36 LL |         #[derive(Debug)]
  37    |         ^^^^^^^^^^^^^^^^
  38