[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/824b095381154312b1005c61a1eeb0... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/95ed8c01d5db4e32ba363ce3be1f83b8 : SUCCESS in 5m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/089f2b5c26c14ba4abdc12169c771a33 : FAILURE in 5m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b18a8916c30c47f0b569e25c7a4ec47c : SUCCESS in 4m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6dcf631288af479fa18489622292f55c : SUCCESS in 5m 18s