[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/784316e4aeb641bba97b93a57247e2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3fc1939de2a9476786f36c5b11a18dc9 : SUCCESS in 5m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a1e95d116e154e04b13d5024d7d83e48 : FAILURE in 3m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/078ed529c1b549aeb8bfff8383a4be5b : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1a27a85212f44e24abf5fede5d53981d : SUCCESS in 3m 36s