rust/tests/ui/impl-trait/in-trait/async-and-ret-ref.rs

// edition:2021
// https://github.com/rust-lang/rust/issues/117547

trait T {}

trait MyTrait {
    async fn foo() -> &'static impl T;
    //~^ ERROR the associated type `<Self as MyTrait>::{opaque#0}` may not live long enough
}

fn main() {}