[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/ea166fe207304b6088cac6c61cf253... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7579c146fc5841cb8535b7cde28b7558 : SUCCESS in 3m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bffb52a02d6842589d31e0ed146f11b9 : FAILURE in 3m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/610d3adc25af4e3f83475f25dfa10cfd : SUCCESS in 5m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0f9c47845b404bf1a97bc0d26dd02b5a : SUCCESS in 3m 38s