[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/f1392926fcc946d285a2a6da62d3dc... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e4454d90624b40a19baee039ec940988 : SUCCESS in 3m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/98940478ff454349a8ff94250051bc07 : SUCCESS in 5m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5d7751ce2fad4b2b96f665f8e6f9383b : SUCCESS in 4m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9dbe56d8f93d4ab19544e86421d06c03 : FAILURE in 4m 22s