[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/d68c14705fe747609f873bdc9dd844... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/12df796194364407a33832bade61bbe4 : SUCCESS in 3m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/90bd280d81a648dd8028da10d9df892c : FAILURE in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5d024a4931e747dc8a474b694afe9f03 : SUCCESS in 2m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/74696e463b4d4780b8a033bdc519eca7 : FAILURE in 3m 01s