[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/d52106ed653e44b4a8809e32635036... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d1f35b729b9a4ec8913ccb6dafbf6fe5 : SUCCESS in 4m 13s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/413e5b561d8848608490e7d9bc381d4e : SUCCESS in 7m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3000c07cccd94ab2a04ce4d06be74ddb : SUCCESS in 5m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7b15b0979adb4f91a2040702772d7d5d : FAILURE in 4m 51s