Build failed. https://zuul.opendev.org/t/openstack/buildset/e7be21f2ef1a45839cdf71a56d7f9ff7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/34b8daec0e36480cb66313183602a813 : SUCCESS in 3m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/956775b771b8487bb41c8d86121127ba : RETRY_LIMIT in 1m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7640e2dd29e740d7acf06d0c109b19d4 : SUCCESS in 4m 24s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d05b8d3e74b94f7287f80df289c0ff5f : SUCCESS in 4m 47s