Build failed. https://zuul.opendev.org/t/openstack/buildset/486b57ecdd9a4c95bd11f5b63f7567f8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a7f873f336d743adb95bfc7a853e2769 : FAILURE in 4m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/28fd14b89a4040c7a2767f08a862f9dd : SUCCESS in 5m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/20e772e31af7455ab179b58cc3134f80 : SUCCESS in 4m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/689cdb243b204da99bb60655776f409e : SUCCESS in 3m 24s