File: issue-89562.rs

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rustc 1.88.0%2Bdfsg1-1
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//@ edition:2018
//@ run-pass

use std::sync::Mutex;

// Copied from the issue. Allow-by-default for now, so run-pass
pub async fn foo() {
    let foo = Mutex::new(1);
    let lock = foo.lock().unwrap();

    // Prevent mutex lock being held across `.await` point.
    drop(lock);

    bar().await;
}

async fn bar() {}

fn main() {}