[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/9a50cff748bf4860821dba7375a778... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/620724e00d3e446a86b2db1a973bee8c : SUCCESS in 2m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d13fabffc96f45acb94b9859160f0929 : SUCCESS in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/048f392565a84c4ca2ea33aef0380d7f : FAILURE in 2m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0a66bc93a93f43dcafc1419b550816e7 : FAILURE in 2m 37s