anchor.diff:  
   rustPlatform.buildRustPackage rec {
     pname = "vector";
  -  version = "0.7.1";
  +  version = "0.7.2";
   
     src = fetchFromGitHub {
       owner  = "timberio";
       repo   = pname;
  -    rev    = "refs/tags/v${version}";
  -    sha256 = "1bqp1ms8y91mpcmxlc8kyncigxq7spxq1ygy6gviz35zq1cqkwnr";
  +    rev    = "v${version}";
  +    sha256 = "1r6pqljrl0cqz5x09p6bmf4h52h8m02pg05a09idj86v0c0q6bw3";
     };
   
  -  # Delete this on next update; see #79975 for details
  -  legacyCargoFetcher = true;
  -
  -  cargoSha256 = "01hynn8ccpwqrirr1bczqc7q7pqkzfjks2v6q4f32xbm50b31fky";
  -  buildInputs = [ openssl pkgconfig protobuf rdkafka ]
  +  cargoSha256 = "1c742g7a4z5lhr991hxdhwk8h0d43r4vv5bxj80sf3lynyx60yzf";
  +  buildInputs = [ openssl pkg-config protobuf rdkafka ]
                   ++ stdenv.lib.optional stdenv.isDarwin [ Security libiconv ];
   
     # needed for internal protobuf c wrapper library
  
positive.code:   PROTOC_INCLUDE="${protobuf}/include";
  
    cargoBuildFlags = [ "--no-default-features" "--features" "${lib.concatStringsSep "," features}" ];
    checkPhase = ":"; # skip tests, too -- they don't respect the rdkafka flag...
  
    meta = with stdenv.lib; {
      description = "A high-performance logs, metrics, and events router";
  
negative.code: { stdenv, lib, fetchFromGitHub, rustPlatform
  , openssl, pkg-config, protobuf
  , Security, libiconv, rdkafka
  
  , features ?
  