[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/fe29deee471d480991900ab53c5a0d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9c262bba3bbe452aabfa4098c329e8a4 : SUCCESS in 5m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bbc06ad4fb994b2690f71f6e4e7177d2 : FAILURE in 5m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9039ee4ca76141818399926380757edb : SUCCESS in 5m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1fd61b76ed1646ee9c5be245b8e72223 : SUCCESS in 5m 14s