add container for tests

Author: ytake

.travis.yml

@@ -5,6 +5,7 @@ services:
 env:
   matrix:
     - HHVM_VERSION=4.62.0
+    - HHVM_VERSION=4.64.0
     - HHVM_VERSION=latest
 install:
 - docker pull hhvm/hhvm:$HHVM_VERSION

tests/AsyncRequestHandleExecutorTest.hack

@@ -13,7 +13,7 @@ final class AsyncRequestHandleExecutorTest extends HackTest {
   public async function testShouldReturnNullStackEmitter(): Awaitable<void> {
     $stack = new EmitterStack();
     $stack->push(new OverrideSapiEmitter());
-    list($readHandle, $writeHandle) = IO\pipe_nd();
+    list($readHandle, $writeHandle) = IO\pipe();
     $executor = new AsyncRequestHandleExecutor(
       $readHandle,
       $writeHandle,