Build failed. https://zuul.opendev.org/t/openstack/buildset/71545a35c4364fc889ecc48cfc46b98e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/757b3263f0a24198a58ecbc767cdc61b : SUCCESS in 3m 51s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/76999ed243e942d79cdb588db58312a7 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/eae714ff1f3b477984fc180d0af8572f : SUCCESS in 2m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/01bc0627f3ce40e09b212fe59bf60d29 : SUCCESS in 3m 41s