Build failed. https://zuul.opendev.org/t/openstack/buildset/f2ec12dc9eee42f8a379243425b9ec7a - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2dbaa3f77bf4438eb409cb74bbbe5ef9 : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6c152b5f9bb64ce0bccf66e4ddb92f5c : SUCCESS in 2m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ac14038749c84591b463768cddd591bf : FAILURE in 3m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/722c2f36cba54e28ae337efc5310a9b7 : FAILURE in 2m 26s