[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/9749dbeffbc64022854a18b4723531... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b2550d7879cf404db051b3671092a415 : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9580964be9944d9fbffbcb6679466c26 : SUCCESS in 2m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b8274f47ede642ee96945e940b4eb212 : FAILURE in 3m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3dd248f233b049e08144c4fcba1b5d37 : FAILURE in 2m 30s