Hello :)

I see the par_test is red again: https://buildkite.com/bazel/bazel-with-downstream-projects-bazel/builds/425#47df845e-6759-4c77-8867-7e81e02ddac0

We had problems with it in #67 and in #80. Can you help me understand why the test is failing with bazel@HEAD? What can we do to prevent it in the future? Should we run the test on our CI with bazel@HEAD?

Thanks!