#![warn(rust_2018_idioms)] #![cfg(feature = "full")] fn is_error() {} #[test] fn mpsc_error_bound() { use tokio::sync::mpsc::error; is_error::>(); is_error::>(); } #[test] fn oneshot_error_bound() { use tokio::sync::oneshot::error; is_error::(); is_error::(); } #[test] fn watch_error_bound() { use tokio::sync::watch::error; is_error::>(); }