[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/8c62bb94861c47399663541f330b6a... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/044c77f5a123473194a8b52ae2fad468 : SUCCESS in 2m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a845a2052e0648aaaa83a3ed73811e20 : SUCCESS in 4m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b555670528d3484d9f0b6353fae55826 : FAILURE in 3m 45s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fbb27af55ee445d38cbb8f072a8b06ed : FAILURE in 3m 46s