message: Disable flaky prefetching_ops_test.
diff: @@ -479,6 +479,10 @@ py_test(
  size = "small",
  srcs = ["prefetching_ops_test.py"],
  srcs_version = "PY2AND3",
  + tags = [
  + "manual",
  + "no_oss",
  + ],
  deps = [
  "//tensorflow/contrib/data/python/ops:prefetching_ops",
  "//tensorflow/core:protos_all_py",
  