Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4acabea87c0747349c60022ee33df5b0 : SUCCESS in 3m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/70c0930b00a0419f94c969973f57db20 : SUCCESS in 3m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/04e4293a37164a5da9cf0fadefa5e0ab : SUCCESS in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8472ae9fde364fefadf9f95df7647626 : FAILURE in 4m 38s