[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/9fa25528db1340fba891015dc5dd80... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7b2279d8ed0c4140975fbf7bf77093c7 : SUCCESS in 5m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f887003a3a604a368ac015525ba724f7 : SUCCESS in 6m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a88bf3f1d67f44c4bd942b1d330054a8 : SUCCESS in 5m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ab363babe3c549418d726dc28992cae1 : FAILURE in 5m 17s