[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/c2f983aec3a947438a141651f1fe9e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dc60ed2d8e1142a2a4fc0613ee354d29 : SUCCESS in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/039c340f6eef40049e06533070df92f7 : FAILURE in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a848e44dea8546e8bb1bd8405d2c0809 : SUCCESS in 3m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a4c3620e9e95437ab69d3505f8c58bc1 : SUCCESS in 4m 09s