anchor.diff:    };
   
     go-jose_v2 = buildFromGitHub {
  -    version = 2;
  -    rev = "v2.1.0";
  +    version = 3;
  +    rev = "v2.1.1";
       owner = "square";
       repo = "go-jose";
  -    sha256 = "0pwclkx1297d9mv835pk82sgsr1a3xjxi1flx9m28kl50rambcwm";
  +    sha256 = "0ldk59z9wdsxjw66qpvk6sw6a87ydff2hz2wbm7mir9g1izw879r";
       goPackagePath = "gopkg.in/square/go-jose.v2";
       buildInputs = [
         urfave_cli
  
positive.code:   };
  
    go-crypto = buildFromGitHub {
      version = 2;
      rev = "0ee3e17034decab4941145296c0b0f4def213a7b";
      owner  = "keybase";
      repo   = "go-crypto";
      sha256 = "12nn4gqn4kyff4499advw0rwsl0ynh22slr5li90mw0asgphbmpr";
      date = "2017-04-19";
      propagatedBuildInputs = [
        ed25519
      ];
  
negative.code:       net
        sys
      ];
      date = "2017-05-03";
    };
  
    google-cloud-go = buildFromGitHub {
      version = 3;
      date = "2017-05-02";
      rev = "085c05ca074a8de9107005f9baa6308eae7eaf41";
      owner = "GoogleCloudPlatform";
      repo = "google-cloud-go";
      sha256 = "1vk7f81x3hgf0p58n7kqnqxv1bwh0yzxjnvvya9bx38hl7ifxypg";
      goPackagePath = "cloud.google.com/go";
      goPackageAliases = [
        "google.golang.org/cloud"
  