if (( $+commands[rustup] && $+commands[cargo] )); then
  ver="$(cargo --version)"
  ver_file="$ZSH_CACHE_DIR/cargo_version"
  comp_file="$ZSH/plugins/cargo/_cargo"

  if [[ ! -f "$comp_file" || ! -f "$ver_file" || "$ver" != "$(< "$ver_file")" ]]; then
    rustup completions zsh cargo >| "$comp_file"
    echo "$ver" >| "$ver_file"
  fi

  declare -A _comps
  autoload -Uz _cargo
  _comps[cargo]=_cargo

  unset ver ver_file comp_file
fi