.travis.yml in asir_xml-1.1.11 vs .travis.yml in asir_xml-1.1.12

@@ -8,5 +8,9 @@
   - rbx-19mode
   - ruby-head
   - jruby-head
   - 1.8.7
   - ree
+
+matrix:
+  allow_failures:
+    - rvm: ruby-head