[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/40c3d57f7e604b85afcc7c885a2e9b... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/74c7371d0a604d4c9526b2da20659d77 : SUCCESS in 4m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/16a85603aac0478e8dcefcf8a19b0d2b : FAILURE in 6m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fdd5d73573bf436ba6c583c4c2c30c76 : SUCCESS in 3m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4a46db8a3afe4cd494d67584cacf8305 : SUCCESS in 5m 40s