message: test(server): try to fix windows keep-alive test
diff: @@ -623,7 +623,9 @@ fn disable_keep_alive_post_request() {
  tx1.send(()).unwrap();
  - let nread = req.read(&mut buf).unwrap();
  + // allow a little more time for TCP to notice the FIN
  + req.set_read_timeout(Some(Duration::from_secs(5))).expect("set_read_timeout 2");
  + let nread = req.read(&mut buf).expect("keep-alive reading");
  assert_eq!(nread, 0);
  });
  @@ -631,7 +633,7 @@ fn disable_keep_alive_post_request() {
  .into_future()
  .map_err(|_| unreachable!())
  .and_then(|(item, _incoming)| {
  - let (socket, _) = item.unwrap();
  + let (socket, _) = item.expect("accepted socket");
  Http::<hyper::Chunk>::new().serve_connection(socket, HelloWorld)
  .select2(rx1)
  .then(|r| {
  