Build failed. https://zuul.opendev.org/t/openstack/buildset/7bff326463ca4b3c86b6fe2d055f8fb0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6afa0729f2a04c15ab89e8769781c98b : SUCCESS in 3m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0fa6838a50264ff2b038f5813695aff9 : FAILURE in 3m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e3d5c6f533394e2b8d92cbb3575d3006 : SUCCESS in 3m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/105422587bc44902913c9fade19d6f30 : SUCCESS in 5m 25s