allow failure for hhvm

Hidde Boomsma · Hidde Boomsma · commit b182cae68233 · 2016-08-09T10:21:35.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,8 @@ php:
   - 7.0
   - 5.6
   - hhvm
+allow_failures:
+  - php: hhvm
 
 install:
-    - composer install --prefer-source
+    - composer install
