tests/ui/on-unimplemented/issue-104140.stderr

   1 error: malformed `rustc_on_unimplemented` attribute input
   2   --> $DIR/issue-104140.rs:5:1
   3    |
   4 LL | #[rustc_on_unimplemented]
   5    | ^^^^^^^^^^^^^^^^^^^^^^^^^
   6    |
   7 help: the following are the possible correct uses
   8    |
   9 LL | #[rustc_on_unimplemented = "message"]
  10    | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  11 LL | #[rustc_on_unimplemented(/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...")]
  12    | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  13
  14 error: aborting due to 1 previous error
  15