[Openstack-stable-maint] Stable check of openstack/oslo.db for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/4ea787df9d4143da818fe9171e796f... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/17510befdcac41efb9612d190fc6c30a : SUCCESS in 7m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9a0fc9b720bf459a80d48cf27208acb5 : SUCCESS in 4m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c84b748325be49859d22ea5a0f33a6c0 : SUCCESS in 4m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/77286d8dfb62463f88615cea18f01d1b : FAILURE in 5m 05s