Build failed. https://zuul.opendev.org/t/openstack/buildset/ae2ec9aa6473424884152045e4ff787b - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/453d6ad949724ffea6c31b8038bdb9e7 : SUCCESS in 2m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/025bd4340d754dd78553e386b5985f64 : FAILURE in 3m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8a6a20a8c6b147b0b0f5b7d1a8f1b71a : SUCCESS in 3m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/50ff504e07264143bcb4c15cc44c20a2 : FAILURE in 3m 39s