[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/cea79f41e6744d6c865f223d4232e7... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d6a32c44ed5b49a29f984fbcb6182cfb : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d24538971d5f4145838fd4a4f1e994e2 : SUCCESS in 5m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ff4c9e5a3ab042dd8cd8c94ae8aa0184 : SUCCESS in 6m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/14a1ab01c8ad44168bacd427f703295e : FAILURE in 4m 38s