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

   1 warning: `#[derive]` does nothing on macro invocations
   2   --> $DIR/issue-49934.rs:30:5
   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:16:8
  11    |
  12 LL | fn foo<#[derive(Debug)] T>() { //~ WARN unused attribute
  13    |        ^^^^^^^^^^^^^^^^
  14    |
  15 note: lint level defined here
  16   --> $DIR/issue-49934.rs:14:9
  17    |
  18 LL | #![warn(unused_attributes)] //~ NOTE lint level defined here
  19    |         ^^^^^^^^^^^^^^^^^
  20
  21 warning: unused attribute
  22   --> $DIR/issue-49934.rs:18:9
  23    |
  24 LL |         #[derive(Debug)] //~ WARN unused attribute
  25    |         ^^^^^^^^^^^^^^^^
  26
  27 warning: unused attribute
  28   --> $DIR/issue-49934.rs:36:5
  29    |
  30 LL |     #[derive(Debug)] //~ WARN unused attribute
  31    |     ^^^^^^^^^^^^^^^^
  32
  33 warning: unused attribute
  34   --> $DIR/issue-49934.rs:40:5
  35    |
  36 LL |     #[derive(Debug)] //~ WARN unused attribute
  37    |     ^^^^^^^^^^^^^^^^
  38
  39 warning: unused attribute
  40   --> $DIR/issue-49934.rs:44:13
  41    |
  42 LL |     let _ = #[derive(Debug)] "Hello, world!";
  43    |             ^^^^^^^^^^^^^^^^
  44
  45 warning: unused attribute
  46   --> $DIR/issue-49934.rs:49:9
  47    |
  48 LL |         #[derive(Debug)] //~ WARN unused attribute
  49    |         ^^^^^^^^^^^^^^^^
  50