3 use std::sync::mpsc::channel;
5 // rustboot can't transmit nils across channels because they don't have
6 // any size, but rustc currently can because they do have size. Whether
7 // or not this is desirable I don't know, but here's a regression test.
9 let (tx, rx) = channel();
11 let n: () = rx.recv().unwrap();