This is an autotest that seems to fail quite often
http://testresults.qt-project.org/ci/Qt5_5.4_Integration/build_00187/macx-clang_developer-build_OSX_10.9/log.txt.gz
http://testresults.qt-project.org/ci/Qt5_5.3.2_Integration/build_00013/macx-clang_developer-build_OSX_10.9/log.txt.gz
http://testresults.qt-project.org/ci/Qt5_5.3_Integration/build_00034/macx-clang_developer-build_qtnamespace_OSX_10.7/log.txt.gz