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

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6699ca0f5c66450bba86384539374cbc : SUCCESS in 7m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bbaab71c066c49789ba44a2065a395d8 : FAILURE in 5m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6811d7a3de2547f389e70e6ca742d791 : SUCCESS in 6m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bfe33ff3e84247f09664e26cfa273209 : SUCCESS in 6m 30s