[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/a396701415954d07b32fd49b89a00c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6615effe57eb47418a66c2c585800602 : SUCCESS in 4m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/30f0f096bf8f4c0aaf42b4c8b43630b6 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/39e3b2ec737743cea33565918fafd8dd : SUCCESS in 5m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/77008e31568f4d22aea167b80ac01df5 : SUCCESS in 4m 25s