src/test/ui/binop/issue-77910-1.stderr

   1 error[E0369]: binary operation `==` cannot be applied to type `for<'a> fn(&'a i32) -> &'a i32 {foo}`
   2   --> $DIR/issue-77910-1.rs:8:5
   3    |
   4 LL |     assert_eq!(foo, y);
   5    |     ^^^^^^^^^^^^^^^^^^
   6    |     |
   7    |     for<'a> fn(&'a i32) -> &'a i32 {foo}
   8    |     _
   9    |
  10    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
  11
  12 error[E0277]: `for<'a> fn(&'a i32) -> &'a i32 {foo}` doesn't implement `Debug`
  13   --> $DIR/issue-77910-1.rs:8:5
  14    |
  15 LL | fn foo(s: &i32) -> &i32 {
  16    |    --- consider calling this function
  17 ...
  18 LL |     assert_eq!(foo, y);
  19    |     ^^^^^^^^^^^^^^^^^^ `for<'a> fn(&'a i32) -> &'a i32 {foo}` cannot be formatted using `{:?}` because it doesn't implement `Debug`
  20    |
  21    = help: the trait `Debug` is not implemented for fn item `for<'a> fn(&'a i32) -> &'a i32 {foo}`
  22    = help: use parentheses to call this function: `foo(/* &i32 */)`
  23    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
  24
  25 error: aborting due to 2 previous errors
  26
  27 Some errors have detailed explanations: E0277, E0369.
  28 For more information about an error, try `rustc --explain E0277`.