[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/4d8ba565b64a4cca920983140128e5... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/13183a2ab9b04fdfbede8640f79333f7 : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b021035e42bd4300aa86c94b4781ebb8 : FAILURE in 3m 37s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b1368457243b4df3b4d059873d9cc8a9 : SUCCESS in 3m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/11d195d9d39042cbb9017d536b43ca38 : SUCCESS in 3m 29s