hhvm broke their xml support. ignore it until they can fix it

dbu · lolautruche · commit 7152dc7272f6 · 2014-10-29T22:56:27.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -13,6 +13,8 @@ branches:
     - /^\d+\.\d+$/
 
 matrix:
+  allow_failures:
+    - php: hhvm
   include:
     - php: 5.5
       env: SYMFONY_VERSION='2.3.*'
