[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/ec2af0e08fb04d819bffbbd9ceb333... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/30e6c7e3886a4fa291793f0fe1901dec : SUCCESS in 3m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0e2cb4ded4814a94a39f9bdc7160b718 : FAILURE in 6m 43s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d8f6b274f84d4a17b477b3c042e7e11c : SUCCESS in 3m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/89520f4c204d407a9603ea81da3b61a8 : SUCCESS in 4m 43s