[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/1a697104920b47c1857068e87af11c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1f5fcc8d08f84c0da814c6d1c757cac5 : SUCCESS in 5m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cae7372203b84b91b45ecd6ae4ae90d9 : FAILURE in 3m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3d5d4d27a78248b8ae3d209d83aa4936 : SUCCESS in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b385cf0ffd794551b0c4e2d7c5c49a8d : SUCCESS in 6m 42s