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#[cfg(feature = "std")]
fn main() {
use std::thread;
use std::time::Duration;
let (sender, receiver) = oneshot::channel::<u128>();
let t = thread::spawn(move || {
thread::sleep(Duration::from_millis(2));
std::mem::drop(sender);
});
assert!(receiver.recv_timeout(Duration::from_millis(100)).is_err());
t.join().unwrap();
}
#[cfg(not(feature = "std"))]
fn main() {
panic!("This example is only for when the \"sync\" feature is used");
}