src/test/ui/type-alias-impl-trait/issue-53092.stderr

   1 error[E0277]: the trait bound `U: From<T>` is not satisfied
   2   --> $DIR/issue-53092.rs:14:5
   3    |
   4 LL |     |x| x.into()
   5    |     ^^^^^^^^^^^^ the trait `From<T>` is not implemented for `U`
   6    |
   7 note: required by a bound in `make_bug`
   8   --> $DIR/issue-53092.rs:13:19
   9    |
  10 LL | fn make_bug<T, U: From<T>>() -> Bug<T, U> {
  11    |                   ^^^^^^^ required by this bound in `make_bug`
  12 help: consider restricting type parameter `U`
  13    |
  14 LL | type Bug<T, U: std::convert::From<T>> = impl Fn(T) -> U + Copy;
  15    |              +++++++++++++++++++++++
  16
  17 error: aborting due to previous error
  18
  19 For more information about this error, try `rustc --explain E0277`.