Build failed. https://zuul.opendev.org/t/openstack/buildset/acac1d2d1d23479f9f9074c35c412c92 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/df3f0cfc6df24c8db09685dcf9ba9bfc : FAILURE in 5m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/30485999de824efdbbfe22527557643f : FAILURE in 6m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e1b80a916da34c179c696252efc452bd : FAILURE in 5m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b86dac58e4c845bcb1d15b1d25ad764a : FAILURE in 5m 04s