anchor.diff:    };
   
     text = buildFromGitHub {
  -    rev = "cd1d59e467ef512633026c0f15282e108e41d453";
  -    date = "2016-02-03";
  +    rev = "db2353fc1b663d79d1001e206afc02a5ec9f4291";
  +    date = "2016-02-05";
       owner = "golang";
       repo = "text";
  -    sha256 = "0zz2w62l6ghih7802x1x6az2l47ci726wchbc6ghm36zx36xqsgl";
  +    sha256 = "0wn5ikx8fk84acwli9yqlwk2i55iy4bq78zws6n678rz0rana0ab";
       goPackagePath = "golang.org/x/text";
       goPackageAliases = [ "github.com/golang/text" ];
     };
  
positive.code:   };
  
    net = buildFromGitHub {
      rev = "6ccd6698c634f5d835c40c1c31848729e0cecda1";
      date = "2016-02-02";
      owner  = "golang";
      repo   = "net";
      sha256 = "10gnjjcgzn7z9l4hyqlammilxigln4m7jriv5apcsdk81ywbjrb5";
      goPackagePath = "golang.org/x/net";
      goPackageAliases = [
        "code.google.com/p/go.net"
  
negative.code:   };
  
    luhn = buildFromGitHub {
      rev = "v1.0.0";
      owner  = "calmh";
      repo   = "luhn";
      sha256 = "1hfj1lx7wdpifn16zqrl4xml6cj5gxbn6hfz1f46g2a6bdf0gcvs";
  