anchor.diff:        ./install.sh --prefix=$out \
           --components=rustc,rust-std-${platform},rust-docs
   
  -      patchelf \
  -        --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker) \
  -        "$out/bin/rustc"
  +      ${if needsPatchelf then ''
  +        patchelf \
  +          --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker) \
  +          "$out/bin/rustc"
  +      '' else ""}
   
         # Do NOT, I repeat, DO NOT use `wrapProgram` on $out/bin/rustc
         # (or similar) here. It causes strange effects where rustc loads
  
positive.code:       ./install.sh --prefix=$out \
          --components=cargo
  
        patchelf \
          --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker) \
          "$out/bin/cargo"
  
        wrapProgram "$out/bin/cargo" \
          --suffix PATH : "${rustc}/bin"
  
negative.code:     then "d59b5509e69c1cace20a57072e3b3ecefdbfd8c7e95657b0ff2ac10aa1dfebe6"
      else throw "missing boostrap hash for platform ${stdenv.system}";
  
    needsPatchelf = (stdenv.system == "i686-linux") || (stdenv.system == "x86_64-linux");
  
    src = fetchurl {
       url = "https://static.rust-lang.org/dist/rust-${version}-${platform}.tar.gz";
       sha256 = bootstrapHash;
  