Build failed. https://zuul.opendev.org/t/openstack/buildset/3d3eab2c40db4b39af98ed0f66dcf351 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/22108e1ebb6e41d3bcaf7f7a6016a16b : SUCCESS in 3m 39s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/342f43d80cee47a8b708ad2e69d7d24e : FAILURE in 3m 04s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/393a6e1ee43847c68f710c213e41e510 : SUCCESS in 3m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1f6ee7cb9dde43fc89b9f2a74521cff1 : SUCCESS in 3m 29s