Build failed. https://zuul.opendev.org/t/openstack/buildset/b8b7fa85aa094352bb0b0e30cbb8e1cc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/22347c2500f64dfbbf17d5c171dc065b : SUCCESS in 5m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7e3e6639d409408d8e4ff3e1a430f17c : FAILURE in 4m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a5c0aab7524b4ab095dfb38854feda8a : SUCCESS in 4m 20s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/372a9bf041904e17bd94010b425c0261 : SUCCESS in 4m 08s