Build failed. https://zuul.opendev.org/t/openstack/buildset/890aa7dfb3d44fe5810ca3e5388f2ae8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/30f5444bff1742dba3b4d99527c46685 : SUCCESS in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2cdaed0d346a4d9bb02f8673ad67edea : SUCCESS in 3m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ec97e53496294b53a509e70969eda9d6 : FAILURE in 3m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/645f7d748c6942ec8959b261a4969a30 : FAILURE in 3m 20s