这是错误，我成功安装了自制软件，但由于此错误而无法安装 UPX。
You can try to install from source with:
brew install --build-from-source upx
Please note building from source is unsupported. You will encounter build
failures with some formulae. If you experience any issues please create pull
requests instead of asking for help on Homebrew's GitHub, Twitter or any other
official channels.