[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/1cf1678164d14f7d9afd6a68544653... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d5f71f1aa8b74807b96f8d1e7ed04d86 : SUCCESS in 3m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b2da9464b9004ed2a9f5e2279d76a187 : SUCCESS in 5m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0fd70c6a6d774eafb3d397f5e09e7085 : FAILURE in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bdaa366e97ef4455988c4e7eadd4f654 : FAILURE in 3m 10s