Update Tokio to Rust 2018 (#1082)

tokio-test/src/clock.rs

@@ -3,13 +3,12 @@
 //! # Example
 //!
 //! ```
-//! # #[macro_use] extern crate tokio_test;
-//! # extern crate futures;
-//! # extern crate tokio_timer;
-//! # use tokio_test::clock;
-//! # use tokio_timer::Delay;
-//! # use std::time::Duration;
-//! # use futures::Future;
+//! use tokio_test::clock;
+//! use tokio_test::{assert_ready, assert_not_ready};
+//! use tokio_timer::Delay;
+//! use std::time::Duration;
+//! use futures::Future;
+//!
 //! clock::mock(|handle| {
 //!     let mut delay = Delay::new(handle.now() + Duration::from_secs(1));
 //!

tokio-test/src/lib.rs

@@ -1,23 +1,25 @@
 #![doc(html_root_url = "https://docs.rs/tokio-test/0.1.0")]
-#![deny(missing_docs, missing_debug_implementations, unreachable_pub)]
+#![deny(
+    missing_docs,
+    missing_debug_implementations,
+    unreachable_pub,
+    rust_2018_idioms
+)]
 #![cfg_attr(test, deny(warnings))]
+#![doc(test(no_crate_inject, attr(deny(rust_2018_idioms))))]
 
 //! Tokio and Futures based testing utilites
 //!
 //! # Example
 //!
 //! ```
-//! # extern crate futures;
-//! # #[macro_use] extern crate tokio_test;
 //! # use futures::{Future, future};
+//! use tokio_test::assert_ready;
+//!
 //! let mut fut = future::ok::<(), ()>(());
 //! assert_ready!(fut.poll());
 //! ```
 
-extern crate futures;
-extern crate tokio_executor;
-extern crate tokio_timer;
-
 pub mod clock;
 mod macros;
 pub mod task;

tokio-test/src/task.rs

@@ -6,8 +6,7 @@
 //! poll.
 //!
 //! ```
-//! # #[macro_use] extern crate tokio_test;
-//! # extern crate futures;
+//! # use tokio_test::assert_ready_eq;
 //! # use tokio_test::task::MockTask;
 //! # use futures::{sync::mpsc, Stream, Sink, Future, Async};
 //! let mut task = MockTask::new();
@@ -20,7 +19,6 @@
 
 use futures::executor::{spawn, Notify};
 use futures::{future, Async};
-
 use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::{Arc, Condvar, Mutex};