buildbot failure in ASF Buildbot on avro-py-ubuntu

[buildbot]

The Buildbot has detected a new failure on builder avro-py-ubuntu while 
building ASF Buildbot. Full details are available at:
    http://ci.apache.org/builders/avro-py-ubuntu/builds/4

Buildbot URL: http://ci.apache.org/

Buildslave for this Build: bb-vm_ubuntu

Build Reason: The AnyBranchScheduler scheduler named 'AvroPy' triggered this 
build
Build Source Stamp: [branch avro/trunk] 1695067
Blamelist: tomwhite

BUILD FAILED: failed test

Sincerely,
 -The Buildbot