[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/4859d6fc95644bec870d313af7179c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6eaa6dfe63584b5290f1040355942ad1 : SUCCESS in 3m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f7a725f5199f498cb148786c40b79712 : FAILURE in 3m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/31e903d4a1f8477292c142385350a7a9 : SUCCESS in 4m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/35b14415fa7a4a19a641e7ff20503446 : SUCCESS in 3m 55s