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// Regression test for #62517. We used to ICE when you had an `async
// fn` with an `impl Trait` return that mentioned a `dyn Bar` with no
// explicit lifetime bound.
//
// edition:2018
// check-pass

trait Object {}

trait Alpha<Param: ?Sized> {}

async fn foo<'a>(_: &'a ()) -> impl Alpha<dyn Object> {}

impl<T> Alpha<dyn Object> for T { }

fn main() { }