Build failed. https://zuul.opendev.org/t/openstack/buildset/50aa881667bf47a6a1ea9c80818b865d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d7d5869d444c4dd9a6101056be3d924b : SUCCESS in 4m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/00aff48d8ce244fbbe546c6b8e9f2274 : SUCCESS in 5m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0660323fac5648f88e46b14c8ead3d6a : SUCCESS in 5m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5fc54445259641eb896be2c07c22f3b6 : FAILURE in 4m 17s