anchor.diff:    };
   
     image = buildGoPackage rec {
  -    rev = "490b1ad139b3";
  -    name = "go.image-${rev}";
  -    goPackagePath = "code.google.com/p/go.image";
  -    src = fetchhg {
  -      inherit rev;
  -      url = "https://${goPackagePath}";
  -      sha256 = "02m6ifwby2fi88njarbbb6dimwg0pd2b6llkgyadh4b9wzp2vy4r";
  +    rev = "d8e202c6ce59fad0017414839b6648851d10767e";
  +    name = "image-${stdenv.lib.strings.substring 0 7 rev}";
  +    goPackagePath = "golang.org/x/image";
  +
  +    src = fetchFromGitHub {
  +      inherit rev;
  +      owner = "golang";
  +      repo = "image";
  +      sha256 = "0cxymm28rgbzsk76d19wm8fwp40dkwxhzmmdjnbkw5541272339l";
       };
     };
   
     net = buildGoPackage rec {
  -    rev = "e0403b4e005737430c05a57aac078479844f919c";
  +    rev = "d1d694760b7a3a9fa32e4d1c49e08b2d672221d8";
       name = "net-${stdenv.lib.strings.substring 0 7 rev}";
       goPackagePath = "golang.org/x/net";
       goPackageAliases = [ "code.google.com/p/go.net" ];
  
positive.code: 
    glog = buildGoPackage rec {
      rev = "44145f04b68cf362d9c4df2182967c2275eaefed";
      name = "glog-${rev}";
      goPackagePath = "github.com/golang/glog";
      src = fetchFromGitHub {
        inherit rev;
        owner = "golang";
  
negative.code: 
  
    protobuf = buildGoPackage rec {
      rev = "39e27fc0f226450c58e11eda145b542bc5dff3fe";
      name = "protobuf-${stdenv.lib.strings.substring 0 7 rev}";
      goPackagePath = "github.com/golang/protobuf";
      goPackageAliases = [ "code.google.com/p/goprotobuf" ];
  
  