[Openstack-stable-maint] Stable check of openstack/oslo.middleware for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/d45b00c944f541dc82c5ef36b67346... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8c54f28b974a4d3abe9bf41a35549d69 : SUCCESS in 3m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2a491fb0fa4a49899e9f0523429c2740 : FAILURE in 3m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/74588116f8d642aca243dcd314014743 : SUCCESS in 3m 01s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4e3356aff2594a328aa22059b3ce8b27 : FAILURE in 4m 25s