tests/ui/nll/issue-54189.stderr

   1 error[E0582]: binding for associated type `Output` references lifetime `'r`, which does not appear in the trait input types
   2   --> $DIR/issue-54189.rs:1:35
   3    |
   4 LL | fn bug() -> impl for <'r> Fn() -> &'r () { || { &() } }
   5    |                                   ^^^^^^
   6
   7 error: aborting due to 1 previous error
   8
   9 For more information about this error, try `rustc --explain E0582`.