[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/26ccba8b7b55472fb182f3e553d34c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/030efb4b0b344afe8ba2f9d8f3a517e1 : SUCCESS in 4m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d36c99e1b2f943d58fbc04c48a7e0a48 : SUCCESS in 4m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/cfe8a5c130434902a960ea0d1703f6f2 : SUCCESS in 4m 43s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/88b26cb445d644e5bba5a21e7b9e6262 : FAILURE in 4m 15s