Build failed. https://zuul.opendev.org/t/openstack/buildset/79a280d92df04d2e85babb06303a45b7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ef984d0be51842d1831de031ee565019 : SUCCESS in 4m 03s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/995c23e9ad674ead8275fb538503f049 : SUCCESS in 4m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0437cf1dd5604231a5515c2e8f9edbe9 : SUCCESS in 4m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d7774628fbec4edbaec5fc79ed89d55d : FAILURE in 3m 08s