[Openstack-stable-maint] Stable check of openstack/oslo.log for ref refs/heads/stable/train failed

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/76b8e0ed7cb748168aaf985b5a4213b4 : SUCCESS in 5m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5be27deddacd4e8d927404d468d7f3a3 : SUCCESS in 6m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bf3f128285da459d8d177c3ebbd29380 : FAILURE in 5m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/68f6500dc0f947de9c785c1ad7baa825 : FAILURE in 8m 09s