Build failed. https://zuul.opendev.org/t/openstack/buildset/e4918e448f8642e092fa95379b52ebbc - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f153bffb2ee94056a91864c481944619 : FAILURE in 5m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/d69584e60c9343fdb79c45f153c9d52b : FAILURE in 4m 19s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/931d131ef7a84eddb7a00dc6b8c3d76f : FAILURE in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b343169babf14ef181064ba354accaac : FAILURE in 4m 57s