anchor.diff:      version = 2;
       owner = "minio";
       repo = "sha256-simd";
  -    date = "2016-09-06";
  -    rev = "672e7bc9f3482375df73741cf57a157fe187ec26";
  -    sha256 = "60e3b179cd36fa04296bbb41bb8b490e340769aa511bcce16aefe5f35201872c";
  +    date = "2016-10-15";
  +    rev = "f78567f7ee70e4be482ad2849f6c3bb7651b34a5";
  +    sha256 = "0mb6knh4bx8p4kpaq4grcc9gw7w9kliipky30sbw1nqnrymmcsja";
     };
   
     skyring-common = buildFromGitHub {
  
positive.code: 
    go-couchbase = buildFromGitHub {
      version = 2;
      rev = "6ab3c78ed0774bf188da7c1169896588dea125cf";
      owner  = "couchbase";
      repo   = "go-couchbase";
      sha256 = "01vxi99b6mzzf6kh5iwsp8v9s497k0p9qal52wrccjjlh0rii8yh";
      date = "2016-09-08";
      goPackageAliases = [
        "github.com/couchbaselabs/go-couchbase"
      ];
  
negative.code:   };
  
    lego = buildFromGitHub {
      version = 2;
      rev = "85eddfa3473e8fcfe1fe892f2a2b2467a9969854";
      owner = "xenolf";
      repo = "lego";
      sha256 = "1fnpmnq0n9axbjcbmah7mnjfsvnk46z8hf08v061d1fjyk5y3idg";
  
      buildInputs = [
        aws-sdk-go
  