[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/341ec9b1790345b38fe6d30ec4729f... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7fc8774865bd4651a4d6f2ed26cd86fa : SUCCESS in 3m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cbc6d5e39b044db7ab8ce0c6a1608262 : FAILURE in 2m 47s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/26df571e75844b92a8647fce1be3659e : SUCCESS in 3m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9cdf954b3fe74770bdf712b50e5721fa : SUCCESS in 3m 50s