[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/1aef74c913844c45824b388b9a94c8... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0c9804aedd0d4f2bbc8b08bcf9cf0881 : SUCCESS in 5m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/3d37761ca9aa41fdb8f04faee3de71b2 : SUCCESS in 5m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d025daf8e41547249bf0f479fb1be1f7 : SUCCESS in 5m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3784d1e2291f48cd8365388aeaf28d34 : FAILURE in 4m 34s