anchor.diff:  
     ipfs-cluster = buildFromGitHub {
       version = 6;
  -    rev = "8d8bcf6ce56ce5d1496c43d6a499bec788f8fc5a";
  +    rev = "53b0b86e5237c92a004f747e4ac5a8f3b87a7513";
       owner = "ipfs";
       repo = "ipfs-cluster";
  -    sha256 = "1pgi6z5wxlivbxlbhgai1xjg3pgx8cvrrxqssizjw8qydjxsih17";
  +    sha256 = "01bdwpzjqy2a116nvmvlx5p3c0y54208wwclp57600ziqpwgfj1v";
       meta.useUnstable = true;
  -    date = "2018-03-21";
  +    date = "2018-03-28";
       excludedPackages = "test";
       propagatedBuildInputs = [
         urfave_cli
         go4
         go-cid
         go-dot
  +      go-fs-lock
  +      go-ipfs-api
         go-libp2p
         go-libp2p-crypto
         go-libp2p-consensus
         go-libp2p-host
  +      go-libp2p-http
         go-libp2p-interface-pnet
         go-libp2p-gorpc
  +      go-libp2p-gostream
         go-libp2p-peerstore
         go-libp2p-pnet
         go-libp2p-protocol
  
positive.code:     version = 6;
      owner = "google";
      repo = "certificate-transparency-go";
      rev = "76406a93aa88c8ce3b42c8c1a74ae4197b9c59ab";
      date = "2018-03-21";
      sha256 = "1jjzbmpd4ia7559jdgpkz7cym4vcqy8w08xf2mw89j0bqrafcjg9";
      subPackages = [
        "."
        "asn1"
  
negative.code:   };
  
    genproto = buildFromGitHub {
      version = 6;
      date = "2018-03-23";
      rev = "ab0870e398d5dd054b868c0db1481ab029b9a9f2";
      owner  = "google";
      repo   = "go-genproto";
      goPackagePath = "google.golang.org/genproto";
      sha256 = "1qvvh1hybzwjv4xlrly6irvdr2fbqryzraq8s8gkaf93cj4yzlx9";
      propagatedBuildInputs = [
        grpc
        net
  