Build failed. https://zuul.opendev.org/t/openstack/buildset/06197877b3c94fa0802a34a5c5159c0b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8c33846202ae4292a28d2a1a84e630b4 : FAILURE in 7m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9ad5f31490d2447ba0e63e549bd0f2e9 : SUCCESS in 5m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ab3401b5850748038d651205b0a2d002 : SUCCESS in 6m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/4c60df7d72364bd9870632960afec3f5 : SUCCESS in 6m 34s