anchor.diff:    };
   
     urfave_cli = buildFromGitHub {
  -    rev = "v1.17.0";
  +    rev = "v1.18.0";
       owner = "urfave";
       repo = "cli";
  -    sha256 = "0171xw72kvsk4zcygvrmslcir9qp7q4v1lh6rpllayf9ws1253dl";
  -    goPackagePath = "github.com/codegangsta/cli";
  +    sha256 = "1s25rph38nkmb78v0faackklrfjqvqwl3md5nci0qlb1wvfb1f7c";
       goPackageAliases = [
  -      "github.com/urfave/cli"
  +      "github.com/codegangsta/cli"
       ];
       buildInputs = [
         yaml-v2
  
positive.code:   };
  
    aws-sdk-go = buildFromGitHub {
      rev = "v1.1.36";
      owner  = "aws";
      repo   = "aws-sdk-go";
      sha256 = "15k90pckmyk3f7h51jwfx7535h18cr2phgy7gxn8fp9601dpclcb";
      buildInputs = [ testify gucumber tools ];
      propagatedBuildInputs = [ ini go-jmespath ];
  
  
negative.code: 
  
    protobuf = buildFromGitHub {
      rev = "3852dcfda249c2097355a6aabb199a28d97b30df";
      date = "2016-06-29";
      owner = "golang";
      repo = "protobuf";
      sha256 = "00p49xhc0542ldpicwa1anc5qw0sa0f470769hx5xx14sxnjybnj";
      goPackagePath = "github.com/golang/protobuf";
      goPackageAliases = [ "code.google.com/p/goprotobuf" ];
    };
  