anchor.diff:        owner = "xiph";
         repo = "rav1e";
         rev = "v${version}";
  -      sha256 = "1z8wdwhmczd7qq61gpngnyhl9614csccm0vnavvzjmaqsljlm0qi";
  +      sha256 = "001v29baa77pkab13d7imi71llixyvffqax8kgjwhm1dhsqlm7bl";
       };
       cargoLock = fetchurl {
         url = "https://github.com/xiph/rav1e/releases/download/v${version}/Cargo.lock";
  -      sha256 = "0qhgiryb71qgil5nawy7n3mj5g9aiikl3hq3nlikg94rm9dl0dhv";
  +      sha256 = "06l8jj75ma5kvz1m14x58an2zvx12i6wcq70gzq5k47nvj5l0zax";
       };
   
       installPhase = ''
  
positive.code:   # Delete this on next update; see #79975 for details
    legacyCargoFetcher = true;
  
    cargoSha256 = "185jnmyirfhrv8bxvmwizf3lvq49sjj1696g3gflph31d8bfpb0c";
  
    nativeBuildInputs = [ nasm ];
  
  
negative.code: 
  rustPlatform.buildRustPackage rec {
    pname = "rav1e";
    version = "0.3.1";
  
    src = stdenv.mkDerivation rec {
      name = "${pname}-${version}-source";
  