[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/da2c6d956904434c859d98d45968f8... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fcf934feb173401794f01058dd28f53e : SUCCESS in 3m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7313b8037a674f77b46a951e46a24e2f : FAILURE in 3m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/192c6f7c9ec348b7a2785c384fc7bfd5 : SUCCESS in 3m 26s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cba24f1c46f2414baf79e44d19ba433d : FAILURE in 2m 54s