Merge pull request #10888 from tbg/test-ski

test: allow failures in linux-amd64-integration-4-cpu

.travis.yml

@@ -30,6 +30,8 @@ env:
 matrix:
   fast_finish: true
   allow_failures:
+  - go: 1.12.5
+    env: TARGET=linux-amd64-integration-4-cpu
   - go: 1.12.5
     env: TARGET=linux-amd64-grpcproxy
   - go: 1.12.5