Build failed. https://zuul.opendev.org/t/openstack/buildset/d71dfe6456864b7495af044ba3e6de50 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b1059ca265604e3eb9e4dd54683c1014 : SUCCESS in 3m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/fc626fe376c64a96b428523984c51054 : FAILURE in 2m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b901231d9b364405bce8ec6c664beba5 : SUCCESS in 2m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2726665a4f294886ba49e9e42ef7ea68 : SUCCESS in 3m 30s