Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/94e6a6ff566b484c8eeaf9a5a640f1c8 : FAILURE in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/94a8ea7908e443e9860c9222f551be76 : FAILURE in 4m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bde9d437a3d04998800311249e643e2d : FAILURE in 4m 09s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e27f19e358f0479c9ab6410697bbda14 : FAILURE in 4m 29s