[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/261d89a16f7d48d59c3cc8e501cdfd... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7164e2d87aee43eeb384dca192c1056f : SUCCESS in 4m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/89d58ad4d7124ac2a990e4c720429639 : SUCCESS in 5m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/77fa1cfce50f4e2ebd21d3b71801c785 : SUCCESS in 5m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/445dcfd9188946c8a068d28740330a8e : FAILURE in 4m 31s