[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/16b6403454ba42c9a10fb4c7698141... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/df3042ac5a65465cb598493630cfdde9 : SUCCESS in 5m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d2d4f334a0bb44008896620ec23a8188 : FAILURE in 3m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e9fdcb722c0e4060a48e68aa564b6bdc : SUCCESS in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c5dfc9deba604b96998321c5a64ad7dd : SUCCESS in 4m 12s