buildbot failure in ASF Buildbot on serf-x64-macosx-apr1.5

[buildbot]

The Buildbot has detected a new failure on builder serf-x64-macosx-apr1.5 while 
building ASF Buildbot. Full details are available at:
    http://ci.apache.org/builders/serf-x64-macosx-apr1.5/builds/390

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

Buildslave for this Build: svn-x64-macosx-dgvrs

Build Reason: forced: by IRC user <zhakov> on channel #serf: None
Build Source Stamp: [branch pump-investigate] HEAD
Blamelist: 

BUILD FAILED: failed

Sincerely,
 -The Buildbot