Update futures and tokio alphas

tests/h2-support/Cargo.toml

@@ -9,7 +9,7 @@ h2 = { path = "../..", features = ["stream", "unstable"] }
 
 bytes = "0.4.7"
 env_logger = "0.5.9"
-futures-preview = "0.3.0-alpha.17"
+futures-preview = "=0.3.0-alpha.18"
 http = "0.1.5"
 string = "0.2"
-tokio = "0.2.0-alpha.1"
+tokio = "=0.2.0-alpha.4"

tests/h2-support/src/mock.rs

@@ -7,14 +7,13 @@ use futures::future::poll_fn;
 use futures::{ready, Stream, StreamExt};
 
 use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt};
-use tokio::timer::Delay;
 
 use super::assert::assert_frame_eq;
 use futures::executor::block_on;
 use std::pin::Pin;
 use std::sync::{Arc, Mutex};
 use std::task::{Context, Poll, Waker};
-use std::time::{Duration, Instant};
+use std::time::Duration;
 use std::{cmp, io, usize};
 
 /// A mock I/O
@@ -483,5 +482,5 @@ impl AsyncWrite for Pipe {
 }
 
 pub async fn idle_ms(ms: u64) {
-    Delay::new(Instant::now() + Duration::from_millis(ms)).await
+    tokio::timer::delay(tokio::clock::now() + Duration::from_millis(ms)).await
 }

tests/h2-support/src/mock_io.rs

@@ -396,7 +396,7 @@ mod tokio_ {
                 match self.inner.read(buf) {
                     Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => {
                         if let Some(rem) = self.inner.remaining_wait() {
-                            self.tokio.sleep = Some(Delay::new(Instant::now() + rem));
+                            self.tokio.sleep = Some(tokio::timer::delay(Instant::now() + rem));
                         } else {
                             self.tokio.read_wait = Some(cx.waker().clone());
                             return Poll::Pending;
@@ -440,7 +440,7 @@ mod tokio_ {
                 match self.inner.write(buf) {
                     Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => {
                         if let Some(rem) = self.inner.remaining_wait() {
-                            self.tokio.sleep = Some(Delay::new(Instant::now() + rem));
+                            self.tokio.sleep = Some(tokio::timer::delay(Instant::now() + rem));
                         } else {
                             panic!("unexpected WouldBlock");
                         }