anchor.diff:      repo   = "go-multipart-files";
       sha256 = "0fdzi6v6rshh172hzxf8v9qq3d36nw3gc7g7d79wj88pinnqf5by";
       date = "2015-09-03";
  +  };
  +
  +  go-multistream = buildFromGitHub {
  +    version = 2;
  +    rev = "b4a4ad9422aa66c32dce09d8d0fa15587d5f67b2";
  +    date = "2016-11-10";
  +    owner  = "whyrusleeping";
  +    repo   = "go-multistream";
  +    sha256 = "1s3ihslb48wynn4pnj1g2bl68w4xg55gdxrrn81pldibnrm4k26v";
     };
   
     go-nat-pmp = buildFromGitHub {
  
positive.code:     ];
    };
  
    goredis = buildFromGitHub {
      version = 1;
      rev = "760763f78400635ed7b9b115511b8ed06035e908";
  
negative.code:     repo   = "go-lz4";
      sha256 = "1hbbagvmq7kxrlwqkn0i4mz66i3n37ch7y6bm9yncnjgd97kldms";
      date = "2016-09-24";
    };
  
    go-maddr-filter = buildFromGitHub {
      version = 2;
      owner = "libp2p";
      repo = "go-maddr-filter";
      date = "2016-10-04";
      rev = "d9f56211111ad200d4a1fb404c784870a89a0706";
      sha256 = "14akw6zwx6i8x8azl64h05hlzidnhh7a6jdz4jq14mz1fhc78cm6";
      propagatedBuildInputs = [
        go-multiaddr
        go-multiaddr-net
      ];
    };
  
    go-md2man = buildFromGitHub {
  