[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/1143252b1f7d4d8f86e1b28423a3aa... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9337d5cd78854cf29c2fc6f9c0ee2bfe : SUCCESS in 3m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6946d975370a4f81ad5a1c36857f8f97 : SUCCESS in 4m 53s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2b16e6848bad4ac495c22b6310fd5fcf : FAILURE in 5m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6d9943a3d128495d9995316cc675d15b : FAILURE in 4m 14s