Build failed. https://zuul.opendev.org/t/openstack/buildset/f53bd1dd486c46f38bc973f55871b3d6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dbf8f30840cf4a1fbd2fb14334c961f1 : SUCCESS in 3m 06s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e911a688570e45539134e3375bfc3859 : SUCCESS in 2m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fc3e9bc3c81a4b5aad7a941ab222231b : SUCCESS in 2m 50s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d8d27bfd4dee473c945aad31a4fe13c1 : FAILURE in 3m 03s