| // edition:2018 | |
| // ignore-tidy-linelength | |
| #![feature(type_alias_impl_trait)] | |
| pub trait Bar { | |
| type E: Copy; | |
| fn foo<T>() -> Self::E; | |
| } | |
| impl<S> Bar for S { | |
| type E = impl Copy; | |
| //~^ ERROR the trait bound `impl std::future::Future: std::marker::Copy` is not satisfied [E0277] | |
| fn foo<T>() -> Self::E { | |
| //~^ ERROR type parameter `T` is part of concrete type but not used in parameter list for the `impl Trait` type alias | |
| async {} | |
| } | |
| } | |
| fn main() {} |