[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/3288c776921c4035a87d62ac6f5437... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0d688182130f4e67956e3602d49eff39 : SUCCESS in 3m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e4a10b0f8140494d948773ae489b0eae : SUCCESS in 5m 45s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2a4265dd9bf94b629c819871c2f022c6 : SUCCESS in 4m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a54b786614af41f3bf88d1dc0850a4b8 : FAILURE in 4m 36s