have been three performance classes established 8 Class 1 General Electronic Products: Includes consumer products, some computer and computer peripherals suitable for applications where cosmetic imperfections

contrast, when you have a closure, the most flexible you can have is Fn (which can be passed to a consumer of any of the 3 closure traits), then FnMut, and lastly FnOnce. The compiler also infers Copy (e send(30).unwrap(); println!("Received: {:?}", rx.recv()); } • mpsc stands for Multi-Producer, Single-Consumer. Sender and SyncSender implement Clone (so you can make multiple producers) but Receiver does not