2 use std::sync::mpsc::channel;
5 let (send, recv) = channel();
6 let t = thread::spawn(|| {
8 //~^^ ERROR `std::sync::mpsc::Receiver<()>` cannot be shared between threads safely
17 let (tx, _rx) = channel();
18 thread::spawn(|| tx.send(()).unwrap());
19 //~^ ERROR `Sender<()>` cannot be shared between threads safely