anchor.diff:      owner  = "hashicorp";
       repo   = "logutils";
       sha256 = "11p4p01x37xcqzfncd0w151nb5izmf3sy77vdwy0dpwa9j8ccgmw";
  +  };
  +
  +  logxi = buildFromGitHub {
  +    date = "2016-04-16";
  +    rev = "7d364cab682d1b7b9063a3293c9e8c3087194940";
  +    owner  = "mgutz";
  +    repo   = "logxi";
  +    sha256 = "0vpwd2xhbgv7cs7myw39wlb85bm5csasq3890l5ba3ryhlkjcs4m";
  +    excludedPackages = "Gododir";
  +    propagatedBuildInputs = [
  +      ansi
  +      go-colorable
  +      go-isatty
  +    ];
     };
   
     luhn = buildFromGitHub {
  
positive.code:     sha256 = "11cxmpapg7l8f4ar233f3ybvsir3ivmmbg1d4dbnqsr1hzv48xrf";
    };
  
    duo_api_golang = buildFromGitHub {
      date = "2016-06-24";
      rev = "60cf4266ffce4f3d8b332fb4af4558c8383dc970";
  
negative.code:   };
  
    datadog-go = buildFromGitHub {
      rev = "1.0.0";
      owner = "DataDog";
      repo = "datadog-go";
      sha256 = "13kjgqx5bs187fapqiirsaig950n2is0a35y2b7ap07dazxxxh3m";
    };
  
    dbus = buildFromGitHub {
  