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// edition: 2021
#![feature(return_type_notation, async_fn_in_trait)]
//~^ WARN the feature `return_type_notation` is incomplete
use std::future::Future;
trait Trait {
async fn method() {}
}
fn test<T: Trait<method() = Box<dyn Future<Output = ()>>>>() {}
//~^ ERROR return type notation is not allowed to use type equality
fn main() {}
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