[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/b8b091c5430b4885bc4abe90578103... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ffcf18e5468842b89b1040b39f877dca : SUCCESS in 3m 38s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d691becafa6149268125e5c2d7a1c077 : FAILURE in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/43f7ff23d2f24adf864f9a4fd168018a : SUCCESS in 3m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/66a3e46c5f1a4ea4a371fb38c2764098 : SUCCESS in 4m 48s