[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/0ce6bf1af15a44e091ab5ef3693758... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3b9e8d0f6cad4fb1ba7587efa6752a59 : SUCCESS in 4m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/731dabe60c704c1b9c47cf2fbd9589ca : SUCCESS in 4m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ad511cb4940040db93806a484a687af8 : FAILURE in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1efecca035f54b5d89dbaa9992cdb342 : FAILURE in 3m 28s