Build failed. https://zuul.opendev.org/t/openstack/buildset/f6aa535eb3364deea8c120ca4ba65c0e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/3729202e6dca4ccbb976a2fbdb55d39a : FAILURE in 7m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cefdd37c6046479ca686309923857fa1 : SUCCESS in 6m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/471646e16bdc4a2085edfc34d2bfac06 : SUCCESS in 4m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/62977ffd9d224741b88eb45cce6fbab7 : SUCCESS in 6m 33s