anchor.diff:      version = 3;
       owner = "tidwall";
       repo = "gjson";
  -    date = "2017-08-15";
  -    rev = "4e8f0c7f2819fc0eceeae4d08df9dd92080b1b48";
  -    sha256 = "1khlpsraj40l8xr2ypxlhbn0f0z11x2hr932w1qvqa52493n8jjk";
  +    date = "2017-08-30";
  +    rev = "be96719f990978a867f52c48f29d43f6b591da28";
  +    sha256 = "02b43hycpc61vjpakclrr2k7rc3112qzqpsrdl36q4h5idq6ay5i";
       propagatedBuildInputs = [
         match
       ];
  
positive.code: 
    dbus = buildFromGitHub {
      version = 3;
      rev = "97646858c46433e4afb3432ad28c12e968efa298";
      owner = "godbus";
      repo = "dbus";
      sha256 = "17849dfzyqz1b6f6ysz5wc3n8mb32jgaannc47jancif3z0gq5x1";
      date = "2017-08-22";
    };
  
    decimal = buildFromGitHub {
  
negative.code: 
    go-getter = buildFromGitHub {
      version = 3;
      rev = "c0d4e3e5abc92827485d2be6d9fba28952f99cdb";
      date = "2017-09-01";
      owner = "hashicorp";
      repo = "go-getter";
      sha256 = "1y1jydhw6skni2vnhl42g17ll2nhf5rsygvxf0krk7ibn7b8q17k";
      propagatedBuildInputs = [
        aws-sdk-go
        go-homedir
  