[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/fa229a04860342389d3490ad1598e8... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/80bc7424528d4737aaf51fb2e52891c5 : SUCCESS in 4m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aca7b32a5b9d461b8af30bd7c592f9d4 : FAILURE in 3m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/188b81c7112448d9b6eb96d2033aa363 : SUCCESS in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6827afca9fd74761840af6c06138d18d : SUCCESS in 5m 01s