[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/c6dca10d79144b6fb6c89436d4771c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/449972984bb74f16b18b69dd402280f7 : SUCCESS in 3m 12s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9d2c6739f4934ea09f28a88bf6d93dfc : SUCCESS in 3m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2819e40fb4d54efda195fdddec7f2178 : FAILURE in 3m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bde1e590b7714fb5a034457550619b40 : FAILURE in 3m 15s