src/test/ui/async-await/in-trait/early-bound-2.rs

// check-pass
// edition:2021

#![feature(async_fn_in_trait)]
#![allow(incomplete_features)]

pub trait Foo {
    async fn foo(&mut self);
}

impl<T: Foo> Foo for &mut T {
    async fn foo(&mut self) {}
}

fn main() {}