anchor.diff:        requiredGems = [  ];
         sha256 = ''1c52ndjqcxpgxhlclbxf98clcpni216xk5zgrkcd4px84riyjbmp'';
       };
  +    uuid_2_3_6 = {
  +      basename = ''uuid'';
  +      meta = {
  +        description = ''UUID generator'';
  +        homepage = ''http://github.com/assaf/uuid'';
  +        longDescription = ''UUID generator for producing universally unique identifiers based on RFC 4122
  +(http://www.ietf.org/rfc/rfc4122.txt).
  +'';
  +      };
  +      name = ''uuid-2.3.6'';
  +      requiredGems = [ g.macaddr_1_6_1 ];
  +      sha256 = ''194xznnxncfgr0nx84l11gnafvkfzr1nj1swnwas75q0ld0ri2l8'';
  +    };
       websocket_1_0_7 = {
         basename = ''websocket'';
         meta = {
  
positive.code:     jruby_pageant = g.jruby_pageant_1_1_1;
      json = g.json_1_7_6;
      json_pure = g.json_pure_1_7_6;
      mail = g.mail_2_4_4;
      mime_types = g.mime_types_1_20_1;
      minitar = g.minitar_0_5_3;
  
negative.code:     selenium_webdriver = g.selenium_webdriver_2_29_0;
      sinatra = g.sinatra_1_3_2;
      sprockets = g.sprockets_2_2_2;
      systemu = g.systemu_2_5_2;
      thor = g.thor_0_17_0;
      tilt = g.tilt_1_3_3;
      treetop = g.treetop_1_4_12;
      tzinfo = g.tzinfo_0_3_35;
      uuid = g.uuid_2_3_6;
      websocket = g.websocket_1_0_7;
      xml_simple = g.xml_simple_1_1_1;
    };
    gem_nix_args = [ ''autotest-rails'' ''buildr'' ''fakes3'' ''foreman'' ''nix'' ''rails'' ''rake'' ''rb-fsevent'' ''sass'' ''selenium-webdriver'' ''sinatra-1.3.2'' ''uuid'' ];
    gems = {
      ZenTest_4_8_4 = {
        basename = ''ZenTest'';
  