anchor.diff:      version = 3;
       owner = "pkg";
       repo = "sftp";
  -    rev = "516f73358825b579ad5ddaf6abb80346bd96e54c";
  -    date = "2017-06-19";
  -    sha256 = "1ykglf12ik29h4kpi9jdgxipadav8kxhhswxg4kfyrb1ahi9bnq8";
  +    rev = "4553269743755b02f6aefd5c4a7ba47c19be25ec";
  +    date = "2017-06-29";
  +    sha256 = "1jxncjxzdrn2dp3dmv8dpk0q8rq66c4w54a38ycdk4cbl5vwbhy0";
       propagatedBuildInputs = [
         crypto
         errors
  
positive.code: 
    go-ethereum = buildFromGitHub {
      version = 3;
      date = "2017-06-28";
      rev = "dfd076244dd0c2d809f9dd0080feab167ba9560c";
      owner  = "ethereum";
      repo   = "go-ethereum";
      sha256 = "0abj4hj1y89ms9m8nlc3aimhvm6x9pbq64phnz130d5crj3gc0h3";
      subPackages = [
        "crypto/sha3"
      ];
  
negative.code:     version = 3;
      owner = "moby";
      repo = "moby";
      rev = "82390ebf32c3e48d80b862ffe46d4160aa65b728";
      date = "2017-06-29";
      sha256 = "1hqdmd9ipwp4l0a3qmg6rv8bfnl3dqfx3vpvh5yh5v97fvybn20r";
      goPackageAliases = [
        "github.com/docker/docker"
      ];
  