[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/e969154531b94973b61c45c450627d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/373939a837f64462a5803ee5a5e72a3e : SUCCESS in 5m 04s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/43dacfced15c48d0bf78dce1a3478333 : SUCCESS in 5m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e84a969a8685462ba36084a8ad47309c : SUCCESS in 5m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/09603bcac7c043b6a552f8954e097aed : FAILURE in 5m 01s