terminate called after throwing an instance of 'boost::filesystem2::basic_filesystem_error<boost::filesystem2::basic_path<std::string, boost::filesystem2::path_traits> >' what(): boost::filesystem::basic_directory_iterator constructor: Too many open files: "/tmp/unittest/_tmp/esort.1331573852.1362949834/"
http://buildbot.mongodb.org/builders/OS%20X%2010.5%2032-bit/builds/3466/steps/test/logs/stdio