anchor.diff:          longDescription = ''A really Ruby Mail handler.'';
         };
         name = ''mail-2.4.4'';
  -      requiredGems = [ g.mime_types_1_17_2 g.treetop_1_4_10 ];
  +      requiredGems = [ g.mime_types_1_18 g.treetop_1_4_10 ];
         sha256 = ''0idylz5pnlz34mrxm7gs9jbll2c0k0y9dq2qarhxk30gwyvjaxi3'';
       };
  -    mime_types_1_17_2 = {
  +    mime_types_1_18 = {
         basename = ''mime_types'';
         meta = {
           description = ''This library allows for the identification of a file's likely MIME content type'';
  
positive.code:     autotest_rails = g.autotest_rails_4_1_2;
      builder = g.builder_3_0_0;
      buildr = g.buildr_1_4_6;
      bundler = g.bundler_1_1_1;
      childprocess = g.childprocess_0_3_1;
      diff_lcs = g.diff_lcs_1_1_3;
      erubis = g.erubis_2_7_0;
  
negative.code:     json = g.json_1_6_5;
      json_pure = g.json_pure_1_6_5;
      mail = g.mail_2_4_4;
      mime_types = g.mime_types_1_18;
      minitar = g.minitar_0_5_3;
      multi_json = g.multi_json_1_1_0;
      net_sftp = g.net_sftp_2_0_4;
  