[Openstack-stable-maint] Stable check of openstack/oslo.log for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/f565adb95a224e3ebd9accd0254f9d... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/40b45d47810744fd88e0479c4db55cd6 : SUCCESS in 3m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/17282985fc40499c816a9c6d5ee8037e : SUCCESS in 4m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/59d4cd2ded784ec586feabaf66cf0c35 : FAILURE in 5m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8ec14532912d4c3a99c5234a8de4ceea : FAILURE in 4m 19s