anchor.diff:  
     google-cloud-go = buildFromGitHub {
       version = 2;
  -    date = "2017-03-07";
  -    rev = "960c7688c840488daad1d2bb1fd3ee8c66b997a9";
  +    date = "2017-03-15";
  +    rev = "3f8a5072eb1701e5ede64adbe70a932b9851eb28";
       owner = "GoogleCloudPlatform";
       repo = "google-cloud-go";
  -    sha256 = "0nn3xpx9ccwjqcznllj7ivan3g9km2l395l1ffjfcswq3x4rdkqg";
  +    sha256 = "0bn44a6jrpx4w99z64xzcfwxi2jrwn3pavnab7r2ss0i5v8ikhhl";
       goPackagePath = "cloud.google.com/go";
       goPackageAliases = [
         "google.golang.org/cloud"
  
positive.code:     version = 2;
      owner = "minio";
      repo = "cli";
      date = "2017-02-27";
      rev = "b8ae5507c0ceceecc22d5dbd386b58fbd4fdce72";
      sha256 = "1z3962l4rdflx8il7qms9lyjla8vwzn5b2ljqszb3rky7351l7sa";
      buildInputs = [
        elastic_v5
        toml
  
negative.code:     propagatedBuildInputs = [
        rsc
      ];
    };
  
    hrff = buildFromGitHub {
      version = 2;
      rev = "0b0f30b52b94f5ed2e21ffd14f537f1094ba8ec6";
      owner  = "tildeleb";
      repo   = "hrff";
      sha256 = "009zlvj9qaxxz1zprhgn5w80qyc5mqr2rifm2q6q6a2j3cvm3ccg";
      goPackagePath = "leb.io/hrff";
      date = "2015-09-06";
    };
  
    http2curl = buildFromGitHub {
  