[Yhc] buildbot failure in macosx_x86

[aw at cs.york.ac.uk]

The Buildbot has detected a failed build of macosx_x86.
Full details are available at:
 http://www.indiegigs.co.uk:8010/macosx_x86/builds/1

Buildbot URL: http://www.indiegigs.co.uk:8010/

Build Reason: 
Build Source Stamp: HEAD
Blamelist: Andrew

BUILD FAILED: failed shell_2

sincerely,
 -The Buildbot