[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/546a289dbb1d44ebb825777efee0d2... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d3eafdac1102454b8b78e40576d0a4ca : SUCCESS in 3m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/de23f62224b5452a9b17dbca70b966e3 : FAILURE in 3m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/23d573c082c74257bd20fdceafd84617 : SUCCESS in 3m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/862f8c35bd0e46d285d87f6c33b623fe : SUCCESS in 3m 13s