[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/792b7a04f9a143a6b39f2d0d239c21... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e0ce4a73b7f6460ea5365f2aebea93a1 : SUCCESS in 3m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/be67ac5a95a84c4d9eced95f85b40c4f : SUCCESS in 5m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e093a6cc0065467ebbf68906c090bf48 : SUCCESS in 4m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/62372f97de64428797af29cc9c7a200e : FAILURE in 4m 56s