Build failed. https://zuul.opendev.org/t/openstack/buildset/ba379d22502d49c1a2c84917a2a375e1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a55ef69bbd174823b7608b0d632043d9 : FAILURE in 3m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/791e195bf30e4de8934775e19c57044f : SUCCESS in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ef695322623f434aabe3ed9e134ce23a : SUCCESS in 4m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/308e8b9999bc42fabe817eb48a8e839e : SUCCESS in 4m 24s