Build failed. https://zuul.opendev.org/t/openstack/buildset/0af4db512cd142bcaa7fa37d41b32fad - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c11cd8f3aa6a4058a1dce3b60b6d9f9a : SUCCESS in 3m 56s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f0f097df91784863953884256389ab72 : SUCCESS in 3m 40s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b4be590fab5c4c82bb89955bd3a08b88 : FAILURE in 4m 17s