[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/0636933ae9a54967bc4d5091b27850... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/42a5135edd92455a8b673e6b8b12e2fe : SUCCESS in 3m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/456d2cf806bb4487b9b3c12aa43250d0 : SUCCESS in 3m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fb54374e3f5d4d6eac72727464697c6b : FAILURE in 6m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4040066864e547f6ab589f93e0726b6d : FAILURE in 3m 05s