[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/064a56b3a5c7407bb3d26663f63e11... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a65d651e56ae4257b8d746fa0e8a1d21 : SUCCESS in 4m 01s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ee1da3b4fc4b4d61b301c3726c8b0e9e : SUCCESS in 3m 41s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/04f25019ac7e401daef6a75ea2f544ab : FAILURE in 3m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/90264bb758c14f829dcb345f6303e203 : FAILURE in 3m 18s