anchor.diff:      version = 2;
       owner = "minio";
       repo = "minio-go";
  -    rev = "550c8c2a5fa42a95cc472fb69fa0939176be6139";
  -    sha256 = "18lmbgbg49p15ds5b6j5v1w1xh2zxk6pajv2wk0z46izhx1rs7rd";
  +    rev = "5297a818b482fa329b3dc1a3926e3c4c6fb5d459";
  +    sha256 = "071g2y3pfrvvzgh1ac5zx5q4zvm0y1ka0cpy43f1q7rn758l476a";
       meta.useUnstable = true;
  -    date = "2017-04-25";
  +    date = "2017-04-26";
     };
   
     missinggo = buildFromGitHub {
  
positive.code: 
    gopacket = buildFromGitHub {
      version = 2;
      rev = "7d979f41c79b4e95e8af43df848b48f80df6d73e";
      owner = "google";
      repo = "gopacket";
      sha256 = "17hd2az715nrw7pi4qdnw4mjns1c1yl2l6q9gqhaalnq5hfi9ikf";
      buildInputs = [
        pkgs.libpcap
        pkgs.pf-ring
  
negative.code:     buildInputs = [
        armon_go-metrics
        aws-sdk-go
        azure-storage-go
        columnize
        consul_api
        copystructure
  