Build failed. https://zuul.opendev.org/t/openstack/buildset/5a17b840981c42fa8575e336a7e3c0ff - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/782053d9b47e4dc89787b9fc606cbaec : FAILURE in 6m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/89122ceb76f1490d9c28b1447e061ec3 : SUCCESS in 5m 01s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/06a12fc715324d49909e98624d2481b9 : SUCCESS in 5m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/44c9377168144fcbac5ab7bd287256ea : SUCCESS in 6m 42s