buildbot failure in ASF Buildbot on svn-warnings

[buildbot]

The Buildbot has detected a new failure on builder svn-warnings while building 
ASF Buildbot. Full details are available at:
    http://ci.apache.org/builders/svn-warnings/builds/824

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

Buildslave for this Build: hemera_ubuntu

Build Reason: The AnyBranchScheduler scheduler named 
'on-subversion-trunk-commit' triggered this build
Build Source Stamp: [branch subversion/trunk] 1720020
Blamelist: kotkov

BUILD FAILED: failed

Sincerely,
 -The Buildbot