Build failed. https://zuul.opendev.org/t/openstack/buildset/84487d80f5a443f992e612e5a81f0a28 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b0023bc0e8eb492ba32a1d901bb06698 : SUCCESS in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/23786e383c2b48b7b44c0cdc05bc11bb : FAILURE in 2m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/24ef5fe929e14ba2850e2cefcc8a7b0c : SUCCESS in 3m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1fcdf7594a924d3b87b47958a27c2d58 : SUCCESS in 3m 36s