#![feature(oneshot_channel)]
use std::sync::oneshot::{self, RecvTimeoutError};
use std::thread;
use std::time::Duration;

let (sender, receiver) = oneshot::channel();

let send_failure = thread::spawn(move || {
    // Simulate a long computation that takes longer than our timeout.
    thread::sleep(Duration::from_millis(250));

    // This will likely fail to send because we drop the receiver in the main thread.
    sender.send("Goodbye!".to_string()).unwrap();
});

// Try to receive the message with a short timeout.
match receiver.recv_timeout(Duration::from_millis(10)) {
    Ok(msg) => println!("Received: {}", msg),
    Err(RecvTimeoutError::Timeout(rx)) => {
        println!("Timed out waiting for message!");

        // Note that you can reuse the receiver without dropping it.
        drop(rx);
    },
    Err(RecvTimeoutError::Disconnected) => println!("Sender dropped!"),
}

send_failure.join().unwrap_err();