[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/6de2fd752eb5402ca97657a1bbe232... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6edc595c90ce4a34b47ef2691fe66c98 : SUCCESS in 3m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8f402fcb1f0e4434ad3da8b4d5c1c2ae : SUCCESS in 4m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6fb1e630f93b4912bb8ad52b3a16405b : SUCCESS in 4m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/600283ea618244038d2fefdc7f84db8c : FAILURE in 3m 53s