Build failed. https://zuul.opendev.org/t/openstack/buildset/508b4cd597fb4f368b75bf187edc3f3c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/824bcef15a0746f29f4798167ef6c127 : SUCCESS in 3m 28s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e56e1794b3474c4595ed1fe27a6c0f01 : FAILURE in 2m 30s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a21f1da6ca3244dc995305ee04f6177d : SUCCESS in 2m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/fcc07197a1c04ea5bac0cbf4e66f21b6 : FAILURE in 2m 54s