[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/bba399a98ad7480d86276a7dc745f5... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/62add52c471b4331bf1c4e65873ce8bd : SUCCESS in 4m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c44cc79cd9b54794bca68cb97ab2b585 : FAILURE in 3m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7d38ec7ce5ed4729894fe3e8b22f09b3 : SUCCESS in 3m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5778e724a264419bab28a4a8c077cb36 : SUCCESS in 3m 51s