In reply to reprograma .
nix build --debug não mostra nenhum erro, parece que funciona, mas por que sai exit 1 ?

{
  pkgs,
  lib,
  ...
}:
pkgs.stdenvNoCC.mkDerivation {
  pname = "adobe-font-folio";
  version = "11.0.0";

  src = pkgs.fetchtorrent {
    url = "magnet:?xt=urn:btih:AA4926C9A4FB3B39DBC0CC23B415BABED19E2947";
    hash = "sha256-XY1tjP2OnP4wLxIn500vmlY+WNc8UAae8ZSKngbIK14=";
    backend = "rqbit";
  };

  nativeBuildInputs = [pkgs.p7zip];

  installPhase = ''
    runHook preInstall

    7z x "Adobe Font Folio 11.iso" -oiso_contents
    mkdir -p $out/share/fonts/{opentype,truetype}
    find iso_contents -type f -iname "*.otf" -exec cp {} $out/share/fonts/opentype/ \;
    find iso_contents -type f -iname "*.ttf" -exec cp {} $out/share/fonts/truetype/ \;
    chmod 0444 $out/share/fonts/opentype/* $out/share/fonts/truetype/*
    rm -rf iso_contents

    runHook postInstall
  '';

  meta = with lib; {
    description = "Adobe Font Folio 11";
    homepage = "https://thepiratebay.org/description.php?id=6087745";
    license = lib.licenses.unfree;
    maintainers = [];
    platforms = platforms.all;
  };
}