[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/4d5190ab28ca454bb210a6d69d205c... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b79ead75c5484329b98dbfb0c9e925a9 : SUCCESS in 3m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/274831ca030845d59aeb8fa77f62835b : SUCCESS in 3m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/755f5dbcedcc48819689b4c520276857 : FAILURE in 3m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ef32a11c00ee4be6ab61ec2c116feed4 : FAILURE in 3m 17s