No such keg: /opt/homebrew/Cellar/r

pkg-config 0.29.2_3 is already installed and up-to-date. To reinstall 0.29.2_3, run: brew reinstall pkg-config

HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK is set: not checking for outdated dependents or dependents with broken linkage!

rustup is outdated! To avoid broken installations, as soon as possible please run: brew upgrade Or, if you're OK with a less reliable fix: brew upgrade rustup