anchor.diff:      version = 2;
       owner = "ncw";
       repo = "rclone";
  -    rev = "4482e75f385b1dd060d3fb8339e36196ad975987";
  -    sha256 = "1yyisnhlkmafyh20qidrmagjs9d6pn6h7rv1dggmdx2p5y1djawg";
  +    rev = "1b2dda8c4cfeba86d72236ec51c29d873d17aa16";
  +    sha256 = "0jfffh3rrsbpvdk4m0bwjavkx3qzipzh0wdc12cqafccik7nxscp";
       propagatedBuildInputs = [
         aws-sdk-go
         cobra
  
positive.code: 
    aws-sdk-go = buildFromGitHub {
      version = 2;
      rev = "v1.6.4";
      owner  = "aws";
      repo   = "aws-sdk-go";
      sha256 = "0bfk49g9r9k0q7vxhnvymp5l1ys0l3cyk9fw6n8sx6rri2n4ygn9";
      excludedPackages = "\\(awstesting\\|example\\)";
      buildInputs = [
        tools
  
negative.code:       testify
      ];
      meta.useUnstable = true;
      date = "2016-12-19";
    };
  
    cupcake_rdb = buildFromGitHub {
  