anchor.diff:      owner  = "cloudfoundry-incubator";
       repo   = "candiedyaml";
       sha256 = "104giv2wjiispfsm82q3lk5qjvfjgrqhhnxm2yma9i21klmvir0y";
  +  };
  +
  +  cascadia = buildFromGitHub {
  +    date = "2015-07-30";
  +    rev = "3ad29d1ad1c4f2023e355603324348cf1f4b2d48";
  +    owner  = "andybalholm";
  +    repo   = "cascadia";
  +    sha256 = "1nqw9sack3iwrp4agx8kqz6pyvw2pg6v3jvmqapsjai4v7inbvyj";
  +    propagatedBuildInputs = [
  +      net
  +    ];
     };
   
     cast = buildFromGitHub {
  
positive.code:       grpc
      ];
      excludedPackages = "oauth2";
      date = "2016-08-10";
    };
  
    gcloud-golang-for-go4 = buildFromGitHub {
  
negative.code:   };
  
    go-isatty = buildFromGitHub {
      rev = "66b8e73f3f5cda9f96b69efd03dd3d7fc4a5cdb8";
      owner  = "mattn";
      repo   = "go-isatty";
      sha256 = "0m60qis720b5jdfklxn2qg98ndrvdbs5ykcn7qdhbycfadv1syyf";
      date = "2016-08-06";
    };
  
    go-jmespath = buildFromGitHub {
  