[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/48f0654e261a4c8587b66126052dcc... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d92c256d5c224dadb80ca22223347226 : SUCCESS in 3m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e4857ae4fe8148d6a0587d9e05205607 : SUCCESS in 4m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/36ed57220f19430f984a087b3f21c1f5 : FAILURE in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e814c876a29b445bb35a848785c8c28d : FAILURE in 3m 40s