manual formula removal instructions when two versions of same formula

[jasonhemann]

Output of brew config

$ brew config
HOMEBREW_VERSION: 4.3.14-25-g102dec8
ORIGIN: https://github.com/Homebrew/brew
HEAD: 102dec893b22dfc22923dad1439b845652f7c04d
Last commit: 18 hours ago
Core tap HEAD: a851377dbbdb79b247ea257f6b5a08d926d4dce9
Core tap last commit: 2 hours ago
Core tap JSON: 10 Aug 14:14 UTC
Core cask tap HEAD: 21e29dd5823a5936ac460723f3a4a65cf6cc544b
Core cask tap last commit: 60 minutes ago
Core cask tap JSON: 10 Aug 14:14 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_DISPLAY: /private/tmp/com.apple.launchd.eSMRDljxz6/org.xquartz:0
HOMEBREW_EDITOR: emacsclient -t
HOMEBREW_GITHUB_API_TOKEN: set
HOMEBREW_MAKE_JOBS: 10
HOMEBREW_SORBET_RUNTIME: set
Homebrew Ruby: 3.3.4 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.3.4_1/bin/ruby
CPU: 10-core 64-bit arm_firestorm_icestorm
Clang: 15.0.0 build 1500
Git: 2.45.2 => /opt/homebrew/bin/git
Curl: 8.4.0 => /usr/bin/curl
macOS: 14.3-arm64
CLT: 15.3.0.0.1.1708646388
Xcode: 15.4
Rosetta 2: false

Output of brew doctor

$ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae and may need to be deleted.

Unexpected dylibs:
  /usr/local/lib/libprofiler.0.dylib
  /usr/local/lib/libtcmalloc.4.dylib
  /usr/local/lib/libtcmalloc_and_profiler.4.dylib
  /usr/local/lib/libtcmalloc_debug.4.dylib
  /usr/local/lib/libtcmalloc_minimal.4.dylib
  /usr/local/lib/libtcmalloc_minimal_debug.4.dylib

Warning: Unbrewed header files were found in /usr/local/include.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae and may need to be deleted.

Unexpected header files:
  /usr/local/include/google/heap-checker.h
  /usr/local/include/google/heap-profiler.h
  /usr/local/include/google/malloc_extension.h
  /usr/local/include/google/malloc_extension_c.h
  /usr/local/include/google/malloc_hook.h
  /usr/local/include/google/malloc_hook_c.h
  /usr/local/include/google/profiler.h
  /usr/local/include/google/stacktrace.h
  /usr/local/include/google/tcmalloc.h
  /usr/local/include/gperftools/heap-checker.h
  /usr/local/include/gperftools/heap-profiler.h
  /usr/local/include/gperftools/malloc_extension.h
  /usr/local/include/gperftools/malloc_extension_c.h
  /usr/local/include/gperftools/malloc_hook.h
  /usr/local/include/gperftools/malloc_hook_c.h
  /usr/local/include/gperftools/nallocx.h
  /usr/local/include/gperftools/profiler.h
  /usr/local/include/gperftools/stacktrace.h
  /usr/local/include/gperftools/tcmalloc.h

Warning: Unbrewed '.la' files were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae and may need to be deleted.

Unexpected '.la' files:
  /usr/local/lib/libprofiler.la
  /usr/local/lib/libtcmalloc.la
  /usr/local/lib/libtcmalloc_and_profiler.la
  /usr/local/lib/libtcmalloc_debug.la
  /usr/local/lib/libtcmalloc_minimal.la
  /usr/local/lib/libtcmalloc_minimal_debug.la

Warning: Unbrewed static libraries were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae and may need to be deleted.

Unexpected static libraries:
  /usr/local/lib/libprofiler.a
  /usr/local/lib/libtcmalloc.a
  /usr/local/lib/libtcmalloc_and_profiler.a
  /usr/local/lib/libtcmalloc_debug.a
  /usr/local/lib/libtcmalloc_minimal.a
  /usr/local/lib/libtcmalloc_minimal_debug.a

Warning: You have unlinked kegs in your Cellar.
Leaving kegs unlinked can lead to build-trouble and cause formulae that depend on
those kegs to fail to run properly once built. Run `brew link` on these:
  markdown
  emacs
  certifi
  doxygen
  jupyterlab

Description of issue

I had openssl@1.1 and openssl@3.0 installed, and went to remove the former. This completed successfully, but issued a warning with suspicious and seemingly incorrect instructions (see below). The rm rf instructions reference the wrong version of openssl.

I was in the process of trying to remove openssl@1.1 from my system, and following this github issue which references a known open brew issue, and while I didn't look into it specifically, I wondered if that might be related.

$ brew uninstall openssl@1.1
Uninstalling /opt/homebrew/Cellar/openssl@1.1/1.1.1w... (8,101 files, 18MB)

Warning: The following openssl@1.1 configuration files have not been removed!
If desired, remove them manually with `rm -rf`:
  /opt/homebrew/etc/openssl@1.1
  /opt/homebrew/etc/openssl@1.1/cert.pem
  /opt/homebrew/etc/openssl@1.1/ct_log_list.cnf
  /opt/homebrew/etc/openssl@1.1/ct_log_list.cnf.dist
  /opt/homebrew/etc/openssl@1.1/misc
  /opt/homebrew/etc/openssl@1.1/misc/CA.pl
  /opt/homebrew/etc/openssl@1.1/misc/tsget
  /opt/homebrew/etc/openssl@1.1/misc/tsget.default
  /opt/homebrew/etc/openssl@1.1/misc/tsget.pl
  /opt/homebrew/etc/openssl@1.1/misc/tsget.pl.default
  /opt/homebrew/etc/openssl@1.1/openssl.cnf
  /opt/homebrew/etc/openssl@1.1/openssl.cnf.dist

Warning: The following may be openssl@1.1 configuration files and have not been removed!
If desired, remove them manually with `rm -rf`:
  /opt/homebrew/etc/openssl@3

[cho-m]

Related to Homebrew/homebrew-core#177425

The current output assumes false positives can occur and that users have to make sure before running any destructive commands. The "may" and "if desired" are important here as blindly running commands can break formulae installations.