[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/322575ea2edf4011896ae95331e8cc... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/541bafd65c0a4f88b48abfc6c0107b44 : SUCCESS in 5m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/24a0a66c740d4d8d96c10033e35e36a9 : SUCCESS in 5m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e4655c3f3c094794ad20978dc606e2f7 : SUCCESS in 5m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a0fc6885e9434c1fb999dbabf771531c : FAILURE in 4m 47s