[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/f40480f4667a4627863f57c8f28a69... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c7869fd9aebe4fccb1584440b97b8ad4 : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/36a9e3354ece4759ab2479981e4a6904 : FAILURE in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f331ead1b57344f1b997a33f5b0a1c53 : SUCCESS in 3m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fe91585e729649829cae4ff379c1eb51 : SUCCESS in 3m 22s