src/test/ui/type-alias-impl-trait/issue-98604.rs


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// edition:2018

type AsyncFnPtr = Box<
    dyn Fn() -> std::pin::Pin<Box<dyn std::future::Future<Output = ()>>>,
>;

async fn test() {}

#[allow(unused_must_use)]
fn main() {
    Box::new(test) as AsyncFnPtr;
    //~^ ERROR type mismatch
}