Ignore JRuby 9.2.0.0 from result of Travis CI.

hsbt · hsbt · commit 5a406b8ad83d · 2018-08-22T14:48:56.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -14,3 +14,6 @@ env:
   global:
     NOBENCHMARK=1
 script: rake
+matrix:
+  allow_failures:
+    - rvm: jruby-9.2.0.0
