[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/414ce619edb1409b891629067a6b70... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/50cd2ec44d3b47c6801e43ccb28f01cf : SUCCESS in 3m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/62d8dfbe50a54bc19bd1e122f8dc7b24 : FAILURE in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/987f264d96294fb7ad523fe44cb1d97b : SUCCESS in 3m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a6b5286dc95d4cc3882cac9eea6f5f85 : SUCCESS in 5m 14s