anchor.diff:    };
   
     crypto = buildFromGitHub {
  -    rev = "b76c864ef1dca1d8f271f917c290cddcce3d9e0d";
  -    date = "2016-04-25";
  +    rev = "b6789ab629056511030d652d851e7dc10c9e9c9e";
  +    date = "2016-05-04";
       owner    = "golang";
       repo     = "crypto";
  -    sha256 = "1v823k7p7b0h3rhp9zg79gdpllqm86389sbbq9vr6p2c162wx4d2";
  +    sha256 = "1a2jb9sx81x18fj6vf8awx7lwaqpxs1b7lvfw5srp6jhhvi0a2jv";
       goPackagePath = "golang.org/x/crypto";
       goPackageAliases = [
         "code.google.com/p/go.crypto"
  
positive.code:   };
  
    syncthing = buildFromGitHub rec {
      rev = "v0.12.23";
      owner = "syncthing";
      repo = "syncthing";
      sha256 = "1kxfm0fmq1iqp37zakrq1wir1yfsini5q2p9fjjkijk63s0mcjd6";
      buildFlags = [ "-tags noupgrade,release" ];
      buildInputs = [
        go-lz4 du luhn xdr snappy ratelimit osext
  
negative.code:   };
  
    gomega = buildFromGitHub {
      rev = "815512bce8c889153a13104c9d9b2416153c1e02";
      owner  = "onsi";
      repo   = "gomega";
      sha256 = "1hn9lszcl8z68qw0wj26iv0i27r5i6ifla8g8hssasl4g9ml4xhy";
      buildInputs = [ protobuf ];
      date = "2016-04-16";
    };
  
    google-api-go-client = buildFromGitHub {
  