fonte: https://github.com/maidsafe/crust/blob/8af25427fb915007ef92d79f46afdd2d9d067cd1/src/connection.rs#L731-L745

bom.rs

        match network_rx.receive() {
            Ok(CrustMsg::Message(msg)) => {
                if let Err(err) = event_tx.send(Event::NewMessage(their_id, msg)) {
                    error!("Error sending message to {:?}: {:?}", their_id, err);
                    break;
                }
            }
            Ok(m) => error!("Unexpected message in start_rx: {:?}", m),
            Err(err) => {
                error!("Error receiving from {:?}: {:?}", their_id, err);
                break;
            }
        }

ruim.rs

        match network_rx.receive() {
            Ok(msg) => match msg {
                CrustMsg::Message(msg) => {
                    if let Err(err) = event_tx.send(Event::NewMessage(their_id, msg)) {
                        error!("Error sending message to {:?}: {:?}", their_id, err);
                        break;
                    }
                }
                m => error!("Unexpected message in start_rx: {:?}", m),
            },
            Err(err) => {
                error!("Error receiving from {:?}: {:?}", their_id, err);
                break;
            }
        }