anchor.diff:  
     go-github = buildFromGitHub {
       version = 2;
  -    date = "2017-03-28";
  -    rev = "3c8f26c1ae8c61ba5d06731b36435a4f46ea9da5";
  +    date = "2017-04-01";
  +    rev = "12363ffc10018c93407ebf303040586d55957271";
       owner = "google";
       repo = "go-github";
  -    sha256 = "0vflrv1q8hllm0rlldny7c3s4x6b397l9lya3f2x370g0j42jbqw";
  +    sha256 = "07ncfm3lhb5j3wyjfazkrndp63n0r0qnd4zf5bvpjp91sg0s96l4";
       buildInputs = [
         appengine
         oauth2
  
positive.code:     version = 2;
      owner = "ncw";
      repo = "rclone";
      rev = "2b8c461e04d1bfc4975c03462539af8fc73b8601";
      sha256 = "1fj0620n2kkn4n8jqp8cfn1p5ywqw0gysc3s80vklhi0ja4sn1b8";
      propagatedBuildInputs = [
        aws-sdk-go
        cobra
  
negative.code: 
    gocql = buildFromGitHub {
      version = 2;
      rev = "f8b6dcaf4f8a770652c11e7e94b517fcb706fce8";
      owner  = "gocql";
      repo   = "gocql";
      sha256 = "1nkhf3q58y6hclf3vmd2wp0jbpdxj8vvlbkrkky3gdw5frs159vy";
      propagatedBuildInputs = [
        inf_v0
        snappy
        hailocab_go-hostpool
        net
      ];
      date = "2017-04-01";
    };
  
    gojsonpointer = buildFromGitHub {
  