anchor.diff:        testify
       ];
       meta.useUnstable = true;
  -    date = "2017-02-09";
  +    date = "2017-02-15";
     };
   
     cupcake_rdb = buildFromGitHub {
  
positive.code: 
    grpc = buildFromGitHub {
      version = 2;
      date = "2017-02-14";
      rev = "cbcceb2942a489498cf22b2f918536e819d33f0a";
      owner = "grpc";
      repo = "grpc-go";
      sha256 = "0pp1igmiw6gi8aaynw52j1ai7vz94ij9lwnkdgqi9cwdwlg8byhf";
      goPackagePath = "google.golang.org/grpc";
      goPackageAliases = [
        "github.com/grpc/grpc-go"
  
negative.code:     version = 2;
      owner = "ncw";
      repo = "rclone";
      rev = "dac4bb22d39b83300614b1dedf7cdfffe07dfe53";
      sha256 = "1x6w3krpiv43xnyjja6bns351hdhr84wg1p3vylgcj1mikaanmpl";
      propagatedBuildInputs = [
        aws-sdk-go
        cobra
  