anchor.diff:    src = fetchFromGitHub {
       owner = "actions";
       repo = "runner";
  -    rev = "c8caf59bb7adaa87c4cf8f61372670d338a13f2d"; # v${version}
  +    rev = "v${version}";
       sha256 = "sha256-Nl1FSjwweVqdQEVhqt4PEcqZbF7htNT279yx1nGuAe0=";
     };
   
  
positive.code:       -p:PackageRuntime="${runtimeId}" \
        -p:BUILDCONFIG="Debug" \
        -p:RunnerVersion="${version}" \
        -p:GitInfoCommitHash="${src.rev}" \
        src/dir.proj
  
      runHook postCheck
  
negative.code: 
    dotnetSdk = dotnetCorePackages.sdk_3_1;
    runtimeId = "linux-x64";
    fakeSha1 = "0000000000000000000000000000000000000000";
  in
  stdenv.mkDerivation rec {
    pname = "github-runner";
  