[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/1d36e7c6159c49cb920198e5eadcd2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/07a6a28e2ab0424a826de82295cf29da : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/57e33b564ca047fb85da72905c740b46 : SUCCESS in 5m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/157bb78b1358441aa6b1b87895091054 : SUCCESS in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c6810eae9f0a430392b64f79fa816955 : FAILURE in 4m 06s