Build failed. https://zuul.opendev.org/t/openstack/buildset/fb7312d71b0e400f8e8134591ede0726 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f0fdc2f5a9af486fa8b978d9cb644bfc : SUCCESS in 3m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ce97095fd46345ba9b1e670bd2fdc248 : FAILURE in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/74853f0e95e04235a2d1e4a96f86200c : SUCCESS in 4m 02s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/93fa85f1c18a4cb4b8454d02da82d0ea : FAILURE in 4m 40s