[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/361d1cdf86964a5993534f65ade269... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3bbc574b47bb4f6e9d24d6df5e0fdc74 : SUCCESS in 3m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/07f4bdf724f94e23ae97cd59d222550a : SUCCESS in 5m 16s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/80b2f316f8c84b388cc7adb10e663ecd : SUCCESS in 5m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f35c3d21d65442b7afa8b801250542c6 : FAILURE in 4m 54s