Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d137ee5a082746ff8f8e53da77139838 : SUCCESS in 13m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b759a9417a0e4876a04b2612b193d554 : FAILURE in 4m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a279cb332ce74a61a5a3b144ca417206 : SUCCESS in 9m 31s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/af46eb13645c480797e95f2004a3dd00 : SUCCESS in 8m 31s