[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/98d342dec493461fa8b515c470391e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/293ffdf59b8c4742aaa58e9e39ce7dcc : SUCCESS in 3m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7ae6430de7da45cabd30fca0b224bd65 : FAILURE in 3m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5f3e6cc1095846d8a95a063da269062e : SUCCESS in 3m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3ed102d45a3f4ff794fe190798ce6e55 : SUCCESS in 4m 36s