src/test/ui/impl-trait/issues/issue-83929-impl-trait-in-generic-default.stderr

   1 error[E0562]: `impl Trait` not allowed outside of function and method return types
   2   --> $DIR/issue-83929-impl-trait-in-generic-default.rs:1:16
   3    |
   4 LL | struct Foo<T = impl Copy>(T);
   5    |                ^^^^^^^^^
   6
   7 error[E0562]: `impl Trait` not allowed outside of function and method return types
   8   --> $DIR/issue-83929-impl-trait-in-generic-default.rs:4:20
   9    |
  10 LL | type Result<T, E = impl std::error::Error> = std::result::Result<T, E>;
  11    |                    ^^^^^^^^^^^^^^^^^^^^^^
  12
  13 error: aborting due to 2 previous errors
  14
  15 For more information about this error, try `rustc --explain E0562`.