[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/c4306344fc4842418e53bf4fc4a350... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/563ae75d0b7849b6a27a29607e411f72 : SUCCESS in 3m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6118edd91bcc4db88df4b3538a2b5e3b : SUCCESS in 2m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/474ba21357d7451fbe4f9239ce8d72df : FAILURE in 3m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1af6dc7235b54917a8d1501a433a3449 : FAILURE in 2m 42s