Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fe8e318e36d9479c99d2389f321e51da : SUCCESS in 4m 00s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2c788a6a5aa846a9826d651aa1c90d3b : FAILURE in 4m 03s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d918bf941dda47f991a9054815ea0acf : SUCCESS in 3m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/82a33cdc44f84f778b4658601f14d900 : SUCCESS in 4m 30s