anchor.diff:      rev = "v0.12.21";
       owner = "syncthing";
       repo = "syncthing";
  -    sha256 = "13k44zhwlxcph2i2cz29if8y7f4dyi5v1282mj3jlljm3hf5fnp0";
  +    sha256 = "ffd6863af8c24a8d16e8f596799033689a1bb10e0466f95cba9cc3c183478a8b";
       buildFlags = [ "-tags noupgrade,release" ];
       buildInputs = [
         go-lz4 du luhn xdr snappy ratelimit osext
  
positive.code:     rev = "c3a655f9b37a2207fa39721b078b3173ee9218d6";
      owner = "onsi";
      repo = "ginkgo";
      sha256 = "00hvd1jnjizwxi6s2n3mdzvy7r83jlhgrwv2myzws26myfs5vwzv";
      date = "2016-03-14";
    };
  
  
negative.code:     rev = "4a8bd8f8baf45afcf2bb385bbc17e5208d5d4c71";
      owner  = "jbenet";
      repo   = "go-multiaddr-net";
      sha256 = "9caeaa3316d6c20ed1b49d3a9f8c8646e56f8b2b6dab6910c5553e79529fa924";
      date = "2015-10-11";
    };
  
  