[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/d5dc481f2d044b5d89226ba10c52c6... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/24acc5fd3ab84918819e31a6c758ad0d : SUCCESS in 4m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ba25e5368d7a4934b12b5d580a1282a2 : SUCCESS in 3m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/558b6649a1994817bf0950c54533964e : FAILURE in 6m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3569f56dfae14c2ea69515637e05ac26 : FAILURE in 7m 51s