buildbot failure in ASF Buildbot on apr-trunk

[buildbot]

The Buildbot has detected a new failure on builder apr-trunk while building ASF 
Buildbot. Full details are available at:
    http://ci.apache.org/builders/apr-trunk/builds/1

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

Buildslave for this Build: orcus_ubuntu

Build Reason: The AnyBranchScheduler scheduler named 'on-apr-commit' triggered 
this build
Build Source Stamp: [branch apr/apr/trunk] 1696767
Blamelist: sf

BUILD FAILED: failed

Sincerely,
 -The Buildbot