[Openstack-stable-maint] Stable check of openstack/oslo.messaging for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/97bb5dc0d1fd45efa430e8b8a1766c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b4c5b8123e2343cbbbef0f6284e0d6ee : SUCCESS in 3m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6f53d939c6814b5b840b7ac1eefed874 : SUCCESS in 6m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2787973ae9d04a5fa6311b24ba3d8e8e : SUCCESS in 6m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b0d5b93e601344ae8d5842b9c5b43ba4 : FAILURE in 3m 59s