[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/613e2c4f38214fcaa0178d180b9fa3... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/02c4a431fa5f45b09b9eb2de60df4952 : SUCCESS in 4m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/73f146d9c3aa44968663ebc5c7ff7796 : SUCCESS in 5m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/67f30b63872c463686bdea9ebe5ca861 : SUCCESS in 5m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/016aa09920c947368a828b83c03cbbed : FAILURE in 5m 02s