[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/567a302f1ce44f958f590b80d8ba37... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8523cd2e66214ef58640e278693eb5e3 : SUCCESS in 4m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/db1649e74af3415db526f7ac9c023c99 : SUCCESS in 7m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/145681b5dea74653b1c11a7867f1d58a : SUCCESS in 6m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/042fff88325e48a2a71a8e00e3211347 : FAILURE in 5m 42s