All: Librarian generated PR fails kokoro build

[ldetmer]

Librarian generated PR: #13376 Is currently blocked from being submitted due to failing kokoro test.

Please fix to unblock code generation in the google-cloud-go repository.

[ldetmer]

this is still an issue with latest generated PR #13391

[quartzmo]

The kokoro job failure in #13391 has no link to job logs, so there is nothing I can do except close this as a probable flake.

[zhumin8]

Reopening. Same failure happened in #13409. Kokoro job still got no link to job logs.
Is this a flake that the kokoro job is not correctly triggered?

[quartzmo]

Thanks for re-opening. I have no idea why we can't there's no Kokoro logs link, but I'll try to find the job and see what happened this morning.

[quartzmo]

Today's Kokoro presubmit jobs for #13409 both failed at the same bigtable test, below, so it might not be a flake. Assigning to @bhshkh for investigation.

=== RUN   TestCachingStreamDecrement/DecrementOnSendError
    connpool_test.go:584: RecvMsg failed unexpectedly while draining: rpc error: code = Internal desc = cardinality violation: received no response message from non-server-streaming RPC
=== RUN   TestCachingStreamDecrement/NoDecrementOnSuccessfulSend
--- FAIL: TestCachingStreamDecrement (0.02s)
    --- PASS: TestCachingStreamDecrement/DecrementOnRecvError (0.01s)
    --- FAIL: TestCachingStreamDecrement/DecrementOnSendError (0.00s)
    --- PASS: TestCachingStreamDecrement/NoDecrementOnSuccessfulSend (0.00s)
FAIL
FAIL	cloud.google.com/go/bigtable/internal/transport	0.191s
FAIL