Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/977ffbe70aee44e498473a781f777739 : SUCCESS in 5m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c269805f0251423f941e874d68cd9b9e : SUCCESS in 12m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/aeba367f659a49a083a70c7c04b20267 : SUCCESS in 17m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b44fcd9e1575469fa49964f778c2f5a6 : FAILURE in 21m 14s