Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/adad7f865a584c498b031d3b6334c06e : SUCCESS in 6m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d38a26ad0e34446eb0cc81e1954a33c3 : FAILURE in 6m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/299e8ddc37524e98887ac4df795cf715 : SUCCESS in 7m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4e4907636d4a44ca880ca1de532f224c : SUCCESS in 6m 05s