[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/8ed482c8cc2b4afc83d46a6e34aae5... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fb8912df1a0a46bf9105a1f5833c54fa : SUCCESS in 4m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/459487424a324c12a28c79c6a187bde5 : SUCCESS in 7m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5297ba00f40c413087e19daf3bff0163 : SUCCESS in 5m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/939318ee7bca4725ae70f996acf81efc : FAILURE in 5m 25s