[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/992369d82d7d4b5facb0f843a9e7b0... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/17f82f014dd14539b57908b0cba1c7e6 : SUCCESS in 5m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7df2d51537df40a7beb45e50a5587205 : SUCCESS in 5m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/66f892342b004ee39e99261e95075f99 : SUCCESS in 6m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bf5b4f790652474588dcedbd6c18da67 : FAILURE in 5m 33s