[Yhc] buildbot failure in macosx_x86_dual

The Buildbot has detected a new failure of macosx_x86_dual. Full details are available at: http://www.indiegigs.co.uk:8010/macosx_x86_dual/builds/183 Buildbot URL: http://www.indiegigs.co.uk:8010/ Buildslave for this Build: markus2 Build Reason: Build Source Stamp: HEAD Blamelist: Neil Mitchell,Tom Shackell <shackell@cs.york.ac.uk> BUILD FAILED: failed tests sincerely, -The Buildbot