[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/c4b7b57c80a04849ab9c0e1792699c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9dfb9ee0547b48fd82c9b553097636c0 : SUCCESS in 4m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fdb1ce5150754e7691d8594ad1915362 : FAILURE in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e7ad3fead2ce49ffb55e8730d2533c60 : SUCCESS in 4m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f85f3df08a954db9a56ef9041c29a9a5 : SUCCESS in 3m 44s