src/test/ui/feature-gates/feature-gate-type_alias_impl_trait.stderr

error[E0658]: `impl Trait` in type aliases is unstable
  --> $DIR/feature-gate-type_alias_impl_trait.rs:1:1
   |
LL | type Foo = impl std::fmt::Debug;
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/63063
   = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable

error[E0658]: `impl Trait` in type aliases is unstable
  --> $DIR/feature-gate-type_alias_impl_trait.rs:9:5
   |
LL |     type Baa = impl std::fmt::Debug;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/63063
   = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0658`.