anchor.diff:    };
   
     zappy = buildFromGitHub {
  -    date = "2014-08-20";
  -    rev = "47331054e4f96186e3ff772877c0443909368a45";
  +    date = "2016-03-05";
  +    rev = "4f5e6ef19fd692f1ef9b01206de4f1161a314e9a";
       owner = "cznic";
       repo = "zappy";
  -    sha256 = "1p4v7gjpvz800ykz7i92i333xbahplbir21i2vrksb8zfw14db14";
  +    sha256 = "0i7pdlajj7xsm4389y8ghgi91s2fx9lx0fn32cndy1jhi2gja6nc";
     };
   
     ninefans = buildFromGitHub {
  
positive.code:   };
  
    gopsutil = buildFromGitHub {
      rev = "1de1357e7737a536c7f4ff6be7bd27977db4d2cb";
      owner  = "shirou";
      repo   = "gopsutil";
      sha256 = "1j1jgy64105yyi3v14hksg2n6s4rsaj1kpjk0x9d834vpj00ky92";
    };
  
    goreq = buildFromGitHub {
  
negative.code:     propagatedBuildInputs = [ golang-lru ];
    };
  
    go-incremental = buildFromGitHub {
      rev    = "92fd0ce4a694213e8b3dfd2d39b16e51d26d0fbf";
      date   = "2015-02-20";
  