Build failed. https://zuul.opendev.org/t/openstack/buildset/1570791b900c48a2a235bf9a9477cfa2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a130ba7b36d44352847863730a8cedb2 : FAILURE in 6m 34s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ed748a63f20340879700955269074d5d : SUCCESS in 6m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e4217a263a3d459f912e668ac0618571 : SUCCESS in 7m 04s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bf6fa414222148c8a4ea9a7a6ad1dda8 : SUCCESS in 7m 37s