Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a3aa52707574456eb76694de3354a495 : SUCCESS in 5m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/33f064cb50964fd9ac5406072152eb3d : SUCCESS in 5m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/249adcfddd27455f9b3cbe9e8a4ab21e : FAILURE in 4m 17s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/22c6583fe6fb48ed98761288dd3f0257 : FAILURE in 3m 25s