Build failed. https://zuul.opendev.org/t/openstack/buildset/65b16ff62f0840edb5502f44a3f611ef - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/056ca6b63f784750a0b60c9b74d4cd14 : SUCCESS in 2m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cc4ac65adc554dc9aebdf08ee071ce79 : SUCCESS in 2m 59s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6b94bc5731cb46c4aa526f8761710af2 : SUCCESS in 2m 41s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f4ee116c63fb497bb17977f41e8662a2 : FAILURE in 3m 01s