[Openstack-stable-maint] Stable check of openstack/oslo.service for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/1e16f7c8014148c892a59618f8cdbb... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b40c7c6f99284775b61c917684f69c03 : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5b7470ccb5874e2e95f5c80c1cc1d7f9 : FAILURE in 3m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7065c928497f4f0fb37f28b5f7599149 : SUCCESS in 3m 23s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/01f4a3d4fe8e4cd189c622fcdfa0206c : FAILURE in 3m 28s