We have the same problem. Most of our workflows stopped working, because homebrew can no longer install certain casks. Our CI is essentially down. Symptom A: Installation, e.g. of brew install jq, fails: $ brew install jq ==> Installing jq dependency: oniguruma ==> Pouring oniguruma--6.9.8.monterey.bottle.tar.gz Error: The `brew link` step did not complete successfully The formula built, but is not symlinked into /usr/local Could not symlink include/oniggnu.h /usr/local/include is not writable. Symptom B: running brew doctor lists multiple missing directories: $ brew doctor Warning: The following directories do not exist: /usr/local/Frameworks /usr/local/include /usr/local/lib /usr/local/sbin /usr/local/var/homebrew/linked Anecdotally, brew install swiftlint does not have the same problem. Any ideas?

This has started working again for us recently. We can now again (at least for the moment) install jq using the built-in homebrew installation in Xcode Cloud. Build are running on latest realease, which at the moment is macOS 12.6 and Xcode 14.0.1. We have switched back to using the built-in homebrew, shaving ~3 minutes of each of our builds, but we are ready if it stops working again ;-)