Build failed. https://zuul.opendev.org/t/openstack/buildset/f1307bc1b09c4cc78af8106ce8856a5b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d144c9b0ec764bbb8b8410a9cfb13318 : SUCCESS in 4m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2fa224b140084c5b94c6b31a1fe23ebc : FAILURE in 3m 38s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8c4d34d3d94047f59c324ee916fcdeab : SUCCESS in 3m 38s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2c6da8ec9d974ef18d040e08a5b1efb2 : SUCCESS in 5m 56s