403 Error
PERMISSION_DENIED
Unable to read file/tail/gs:%2F%2Fkokoro_build_logs%2Fkokoro-sisyphus%2Fresultstore%2Fprod%2Fcloud-devrel%2Fclient-libraries%2Fpython%2Fgoogleapis%2Fpython-spanner%2Fsamples%2Fpython3.6%2Fperiodic%2Fc1625ed9-4025-4cd9-bef0-7f669da71b59%2Fbuild.log. Either the file does not exist or there is a permission issue.