File: issue-53092.stderr

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error[E0792]: non-defining opaque type use in defining scope
  --> $DIR/issue-53092.rs:11:18
   |
LL | const CONST_BUG: Bug<u8, ()> = unsafe { Moo { y: () }.x };
   |                  ^^^^^^^^^^^ argument `u8` is not a generic parameter
   |
note: for this opaque type
  --> $DIR/issue-53092.rs:4:18
   |
LL | type Bug<T, U> = impl Fn(T) -> U + Copy;
   |                  ^^^^^^^^^^^^^^^^^^^^^^

error[E0277]: the trait bound `U: From<T>` is not satisfied
  --> $DIR/issue-53092.rs:15:5
   |
LL |     |x| x.into()
   |     ^^^^^^^^^^^^ the trait `From<T>` is not implemented for `U`
   |
note: required by a bound in `make_bug`
  --> $DIR/issue-53092.rs:14:19
   |
LL | fn make_bug<T, U: From<T>>() -> Bug<T, U> {
   |                   ^^^^^^^ required by this bound in `make_bug`
help: consider restricting type parameter `U`
   |
LL | type Bug<T, U: std::convert::From<T>> = impl Fn(T) -> U + Copy;
   |              +++++++++++++++++++++++

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0277, E0792.
For more information about an error, try `rustc --explain E0277`.