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

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// 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() {}