src/test/ui/issues/issue-57843.stderr

   1 error[E0308]: mismatched types
   2   --> $DIR/issue-57843.rs:23:9
   3    |
   4 LL |     Foo(Box::new(|_| ()));
   5    |         ^^^^^^^^^^^^^^^^ one type is more general than the other
   6    |
   7    = note: expected type `FnOnce<(&'a bool,)>`
   8               found type `FnOnce<(&bool,)>`
   9 note: this closure does not fulfill the lifetime requirements
  10   --> $DIR/issue-57843.rs:23:18
  11    |
  12 LL |     Foo(Box::new(|_| ()));
  13    |                  ^^^^^^
  14
  15 error: aborting due to previous error
  16
  17 For more information about this error, try `rustc --explain E0308`.