Build failed. https://zuul.opendev.org/t/openstack/buildset/9448d36b74904b089879357e6b432c14 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/feaa1ace0cb5461ea857ea93641a9b88 : SUCCESS in 2m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b1ba492e59c44c88b8b7628fd2cea50a : SUCCESS in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/db6be51b289e46288e98e8493126ca61 : FAILURE in 2m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/7af390a35d1d453383a7e9c593671e3c : FAILURE in 2m 44s