11     let (mut tx, rx) = oneshot::channel::<u32>();  in smoke_poll()
12     let mut rx = Some(rx);  in smoke_poll()  localVariable
16         drop(rx.take());  in smoke_poll()
27     let (mut tx, rx) = oneshot::channel::<u32>();  in cancel_notifies()
32     drop(rx);  in cancel_notifies()
40     let (tx, rx) = mpsc::channel::<(Sender<_>, mpsc::Sender<_>)>();  in cancel_lots()
42         for (mut tx, tx2) in rx {  in cancel_lots()
62     let (mut tx, rx) = oneshot::channel::<u32>();  in cancel_after_sender_drop_doesnt_notify()
66     drop(rx);  in cancel_after_sender_drop_doesnt_notify()
71     let (mut tx, mut rx) = oneshot::channel::<u32>();  in close()
72     rx.close();  in close()
74         match rx.poll_unpin(cx) {  in close()
85     let (mut tx, mut rx) = oneshot::channel::<u32>();  in close_wakes()
88         rx.close();  in close_wakes()
98     let (tx, rx) = oneshot::channel::<u32>();  in is_canceled()
100     drop(rx);  in is_canceled()
108     let (tx, rx) = mpsc::channel::<Sender<_>>();  in cancel_sends()
110         for otx in rx {  in cancel_sends()