[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/045831e08dd4474abaff0a088e2383... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/26822b6d051b49cabc3b0ff5dd9ba477 : SUCCESS in 3m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9c2958aa49c7471e8a3bd1db4b1f36fb : FAILURE in 3m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1d7667bc5ef744428232ba653633239c : SUCCESS in 2m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f40f0f44c88044c1a2f586f7710d8829 : SUCCESS in 3m 51s