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

Build failed. https://zuul.opendev.org/t/openstack/buildset/b8ef0e275b9348888213504cf3f709... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f85e8e667c5641d89fdbaa6259ad11eb : SUCCESS in 3m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5b11f2dd2135459491eb31802a808759 : FAILURE in 3m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9ec99f86c9174fff8980a7c65584d9ce : SUCCESS in 4m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/79b060510f8f49608cd59f6e0633eaf4 : SUCCESS in 5m 02s