Build failed. https://zuul.opendev.org/t/openstack/buildset/92cca096fba14654a0015e3909171ecc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/20f2c94d5ffc41e982cdcd3e0e1fc86d : SUCCESS in 2m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/73a078e6d8f6423490cfebd113355572 : SUCCESS in 3m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0c93a4ea5d734ba2bf145f2bdd5e8cab : SUCCESS in 4m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/aecb5a9e4d3f409abf15ca0985cf4fab : FAILURE in 2m 47s