Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ed071540a22b4f3e892835dac2d2d006 : SUCCESS in 4m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/61e2704bb7154f2090f9dfb8623f8c33 : SUCCESS in 3m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0280081890fe4dd991c80a33d16cf93b : SUCCESS in 5m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/edf88c874e5a4883a6c79faa671aa735 : FAILURE in 4m 36s