+
+# Use fast containers instead of the slower sudo-enabled VMs:
+sudo: false
+# Use Ubuntu 14 Trusty (not Ubuntu 12 Precise)
+# <https://docs.travis-ci.com/user/reference/trusty/>
+# - Required in order to use HHVM 3.6 or higher.
+# - Required for non-buggy xml library for XmlTypeCheck/UploadBaseTest (T75176).
+dist: trusty
+