[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/1f8d48973466471b89464ae9d509e449 : SUCCESS in 3m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2ff9481d37f745009a06c796f20f5fce : SUCCESS in 3m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6543ebac9b6a40a3b21e925377f889b7 : FAILURE in 3m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e689342b6aa240e197d8e545b9cc170f : FAILURE in 4m 22s