anchor.diff:    };
   
     syncthing = buildFromGitHub rec {
  -    rev = "v0.12.22";
  +    rev = "v0.12.23";
       owner = "syncthing";
       repo = "syncthing";
  -    sha256 = "198ac8b828fb70b9202efcd6e1a5aa952981a2bbbe6358a8fc9fce0146631b63";
  +    sha256 = "1kxfm0fmq1iqp37zakrq1wir1yfsini5q2p9fjjkijk63s0mcjd6";
       buildFlags = [ "-tags noupgrade,release" ];
       buildInputs = [
         go-lz4 du luhn xdr snappy ratelimit osext
  
positive.code:   };
  
    net = buildFromGitHub {
      rev = "35ec611a141ee705590b9eb64d673f9e6dfeb1ac";
      date = "2016-04-28";
      owner  = "golang";
      repo   = "net";
      sha256 = "1v9adcws9g9q8k65bdwnl0cvh6ay8sqfdwy8n1zxg8n0bzdhabax";
      goPackagePath = "golang.org/x/net";
      goPackageAliases = [
        "code.google.com/p/go.net"
  
negative.code:   };
  
    crypto = buildFromGitHub {
      rev = "47ff8dfbc528fea3003fc0ce2d88ffbbfbc46a43";
      date = "2016-05-06";
      owner    = "golang";
      repo     = "crypto";
      sha256 = "0bdz4az6xnsgj7ahl8mvxagcl9yrzqfd3q7f873f1a0jlwmkiha5";
      goPackagePath = "golang.org/x/crypto";
      goPackageAliases = [
        "code.google.com/p/go.crypto"
  