anchor.diff:      ];
     };
   
  -  goautoneg = buildGoPackage rec {
  -    name = "goautoneg-2012-07-07";
  -    goPackagePath = "bitbucket.org/ww/goautoneg";
  -    rev = "75cd24fc2f2c2a2088577d12123ddee5f54e0675";
  -
  -    src = fetchFromBitbucket {
  -      version = 1;
  -      inherit rev;
  -      owner  = "ww";
  -      repo   = "goautoneg";
  -      sha256 = "9acef1c250637060a0b0ac3db033c1f679b894ef82395c15f779ec751ec7700a";
  -    };
  -
  -    meta.autoUpdate = false;
  -  };
  -
     gocapability = buildFromGitHub {
       version = 2;
       rev = "e7cb7fa329f456b3855136a2642b197bad7366ba";
  
positive.code: 
    azure-storage-go = buildFromGitHub {
      version = 2;
      rev = "v0.1.0";
      owner  = "Azure";
      repo   = "azure-storage-go";
      sha256 = "1p6n6s9xhrbh67k0dkpd2ph598qmnlnaaayq6pdqwrh0q5pgwx6s";
  
negative.code:     ];
    };
  
    google-api-go-client = buildGoPackage rec {
      name = nameFunc {
        inherit
          goPackagePath
          rev;
        date = "2017-04-21";
      };
      rev = "fbbaff1827317122a8a0e1b24de25df8417ce87b";
      goPackagePath = "google.golang.org/api";
      src = fetchzip {
        version = 2;
        stripRoot = false;
        purgeTimestamps = true;
        inherit name;
        url = "https://code.googlesource.com/google-api-go-client/+archive/${rev}.tar.gz";
        sha256 = "1fm8wy6abzql82dg55n5m0jxr6kypqbc0jaw7xfhs6ds9n1s9r6x";
      };
      buildInputs = [
        appengine
        genproto
  