Build failed. https://zuul.opendev.org/t/openstack/buildset/6fa6422768764de5bcb0d5d23f41997f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c8422a0bcf1645cb9977fa55bb82c8e2 : SUCCESS in 3m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/53b8cccae47b4130a6a8616ee1fb843d : SUCCESS in 3m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5533c2a61408400eb0f473e41159af52 : FAILURE in 3m 38s