[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/5920c6287f1f4035a85b8fa60c424f... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0c05b65158174d1c9e8cbbc1371c5225 : SUCCESS in 3m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aaac3624aad44fbb99c6e57d0d39e5cb : SUCCESS in 2m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f261addc79f04df9bf7d7ee3cacf5783 : FAILURE in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b1ed41389c02432e9d862f437fc4dd57 : FAILURE in 2m 36s