Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/09ec25eee259424da53b51b2e5a1fbee : SUCCESS in 6m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0a64c8c1598948dd9aeef45921a1b39e : SUCCESS in 8m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bb117477fa5e4b2b9be0cc4fb0b76e53 : FAILURE in 7m 14s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cbc99368279d49b9867222a87e207510 : FAILURE in 7m 55s