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

Build failed. https://zuul.opendev.org/t/openstack/buildset/a4c0b9f1473c4c1989822fb2e508c4... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5d6682f01cb045debc01c7293ea5af80 : FAILURE in 2m 52s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f0ead2246d9e4a60b1527ba01ca16df1 : FAILURE in 3m 02s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ca74f0e1023c4154bcd074a51b2866ae : FAILURE in 2m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/19ba2bf7c16f4305aa57daec6c95b2da : FAILURE in 2m 45s