Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/d948a6a77fdc4a6c81841c90ec176461 : SUCCESS in 7m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a3c2a7e475434a8283d0aeac067b9d94 : SUCCESS in 7m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/080481d61bdf483b9789b38a3f5ee425 : FAILURE in 9m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/3a18956a7bc6477e9e1bf574bf773a7b : FAILURE in 7m 45s