try with dist: trusty instead

tkelman · tkelman · commit 40635134639e · 2016-01-06T07:38:11.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -8,4 +8,5 @@ julia:
     - nightly
 notifications:
   email: false
-sudo: false
+sudo: required
+dist: trusty
