[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/bf9cb88220a243a1af41bbb2ad32d6... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b608396501fc462e9c5993bb80173db2 : SUCCESS in 5m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/909e37580b30403a85c2f1277b72f0b2 : FAILURE in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b0683edcd8ba4ab1b22c85fdde64b6b8 : SUCCESS in 3m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7943ff6618d2487195a3fc2bfe3bf809 : SUCCESS in 4m 22s