Homebrew
Postinstall failure in brew install --HEAD rustup
#6512
Answered
by
ZhongRuoyu
rami3l
asked this question in
Tap maintenance and Homebrew development
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Output of
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Answered by
ZhongRuoyu
Nov 5, 2025
Replies: 1 comment 8 replies
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Does running |
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8 replies
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Sorry for the late reply. Here is what I have on my machine: > brew install --HEAD --debug rustup
==> Fetching downloads for: rustup
==> Fetching rustup
==> Cloning https://github.com/rust-lang/rustup.git
Updating /Users/rami3l/Library/Caches/Homebrew/rustup--git
==> Checking out branch main
Already on 'main'
Your branch is up to date with 'origin/main'.
HEAD is now at 323bf9fc cli: prepare DistOptions in advance
==> cargo install --features=no-self-update
==> Fixing /opt/homebrew/Cellar/rustup/HEAD-323bf9f/bin/rustup-init permissions from 755 to 555
Warning: The post-install step did not complete successfully
You can try again using:
brew postinstall rustup
==> Homebrew requires formulae to be in a tap, rejecting:
/Users/rami3l/Library/Caches/Homebrew/api-source/Homebrew/homebrew-core/e3823be7681e1524b4ff68f814f3e4084b92b47c/Formula/rustup.rb (/Users/rami3l/Library/Caches/Homebrew/downloads/8a5db76feec1a8050b9120f7d87d094ae96d25074dccb0fed9dec24aa1c13154--rustup.rb)
To create a tap, run e.g.
brew tap-new <user|org>/<repository>
To create a formula in a tap run e.g.
brew create <url> --tap=<user|org>/<repository>
/opt/homebrew/Library/Homebrew/utils/path.rb:38:in 'Utils::Path.loadable_package_path?'
/opt/homebrew/Library/Homebrew/formulary.rb:739:in 'Formulary::FromPathLoader.try_new'
/opt/homebrew/Library/Homebrew/formulary.rb:1457:in 'block in Formulary.loader_for'
/opt/homebrew/Library/Homebrew/formulary.rb:1456:in 'Array#each'
/opt/homebrew/Library/Homebrew/formulary.rb:1456:in 'Formulary.loader_for'
/opt/homebrew/Library/Homebrew/formulary.rb:1167:in 'Formulary.factory'
/opt/homebrew/Library/Homebrew/formula_installer.rb:1342:in 'FormulaInstaller#post_install_formula_path'
/opt/homebrew/Library/Homebrew/formula_installer.rb:1361:in 'FormulaInstaller#post_install'
/opt/homebrew/Library/Homebrew/formula_installer.rb:1008:in 'FormulaInstaller#finish'
/opt/homebrew/Library/Homebrew/install.rb:490:in 'Homebrew::Install.install_formula'
/opt/homebrew/Library/Homebrew/install.rb:422:in 'block in Homebrew::Install.install_formulae'
/opt/homebrew/Library/Homebrew/install.rb:419:in 'Array#each'
/opt/homebrew/Library/Homebrew/install.rb:419:in 'Homebrew::Install.install_formulae'
/opt/homebrew/Library/Homebrew/cmd/install.rb:392:in 'Homebrew::Cmd::InstallCmd#run'
/opt/homebrew/Library/Homebrew/brew.rb:101:in '<main>'
==> Caveats
[OMITTED]Any clues? |
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Thanks -- this is an issue with As a workaround, you can run |
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Answer selected by
rami3l
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FYI: this should be fixed now. Let me know if you still have problems. |
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@ZhongRuoyu Many thanks for the patch, everything seems to be working normally after a reinstallation 🎉 |
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@ZhongRuoyu I have noticed this strange error when running > brew upgrade rustup --fetch-HEAD --debug
==> Upgrading 1 outdated package:
rustup HEAD-82cecb7 -> HEAD-82cecb7
==> Fetching downloads for: rustup
==> Fetching rustup
==> Cloning https://github.com/rust-lang/rustup.git
Updating /Users/rami3l/Library/Caches/Homebrew/rustup--git
==> Checking out branch main
Already on 'main'
Your branch is up to date with 'origin/main'.
HEAD is now at 82cecb7b test: add test for `rustup toolchain install --no-update`
==> Upgrading rustup
HEAD-82cecb7 -> HEAD-82cecb7
==> cargo install --features=no-self-update
/opt/homebrew/Library/Homebrew/ignorable.rb:30:in 'block in Object#raise'
RuntimeError: Will not overwrite /opt/homebrew/Cellar/rustup/HEAD-82cecb7/etc/bash_completion.d/rustup
1. raise
2. ignore
3. backtrace
4. irb
5. shell
Choose an action: 1
==> Temporary files retained at:
/private/tmp/rustup-20251109-48600-r1ajlq
Error: An exception occurred within a child process:
RuntimeError: Will not overwrite /opt/homebrew/Cellar/rustup/HEAD-82cecb7/etc/bash_completion.d/rustup
/opt/homebrew/Library/Homebrew/ignorable.rb:30:in 'block in Object#raise'
/opt/homebrew/Library/Homebrew/ignorable.rb:29:in 'Kernel#callcc'
/opt/homebrew/Library/Homebrew/ignorable.rb:29:in 'Object#raise'
/opt/homebrew/Library/Homebrew/extend/pathname/write_mkpath_extension.rb:27:in 'WriteMkpathExtension#write'
/opt/homebrew/Library/Homebrew/formula.rb:2294:in 'block in Formula#generate_completions_from_executable'
/opt/homebrew/Library/Homebrew/formula.rb:2261:in 'Array#each'
/opt/homebrew/Library/Homebrew/formula.rb:2261:in 'Formula#generate_completions_from_executable'
/Users/rami3l/Library/Caches/Homebrew/api-source/Homebrew/homebrew-core/8e493d033588e759901bae61ab50c84d63897154/Formula/rustup.rb:39:in 'Formulary::FormulaNamespacecad5b3a3676f692cf06a81555a1c26512b13cdc81904b7e39f7806f7cf5ab6ee::Rustup#install'
/opt/homebrew/Library/Homebrew/debrew.rb:11:in 'block in Debrew::Formula#install'
/opt/homebrew/Library/Homebrew/debrew.rb:83:in 'Debrew.debrew'
/opt/homebrew/Library/Homebrew/debrew.rb:11:in 'Debrew::Formula#install'
/opt/homebrew/Library/Homebrew/build.rb:202:in 'block (3 levels) in Build#install'
/opt/homebrew/Library/Homebrew/extend/kernel.rb:303:in 'Kernel#with_env'
/opt/homebrew/Library/Homebrew/build.rb:157:in 'block (2 levels) in Build#install'
/opt/homebrew/Library/Homebrew/formula.rb:1677:in 'block in Formula#brew'
/opt/homebrew/Library/Homebrew/formula.rb:3456:in 'block (2 levels) in Formula#stage'
/opt/homebrew/Library/Homebrew/extend/kernel.rb:303:in 'Kernel#with_env'
/opt/homebrew/Library/Homebrew/formula.rb:3455:in 'block in Formula#stage'
/opt/homebrew/Library/Homebrew/resource.rb:109:in 'block (2 levels) in Resource#unpack'
/opt/homebrew/Library/Homebrew/download_strategy.rb:119:in 'AbstractDownloadStrategy#chdir'
/opt/homebrew/Library/Homebrew/download_strategy.rb:110:in 'AbstractDownloadStrategy#stage'
/opt/homebrew/Library/Homebrew/resource.rb:105:in 'block in Resource#unpack'
/opt/homebrew/Library/Homebrew/mktemp.rb:92:in 'block in Mktemp#run'
/opt/homebrew/Library/Homebrew/mktemp.rb:92:in 'Dir.chdir'
/opt/homebrew/Library/Homebrew/mktemp.rb:92:in 'Mktemp#run'
/opt/homebrew/Library/Homebrew/resource.rb:233:in 'Resource#stage_resource'
/opt/homebrew/Library/Homebrew/resource.rb:104:in 'Resource#unpack'
/opt/homebrew/Library/Homebrew/resource.rb:78:in 'Resource#stage'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.5/lib/ruby/3.4.0/forwardable.rb:240:in 'SoftwareSpec#stage'
/opt/homebrew/Library/Homebrew/formula.rb:3433:in 'Formula#stage'
/opt/homebrew/Library/Homebrew/formula.rb:1670:in 'Formula#brew'
/opt/homebrew/Library/Homebrew/build.rb:151:in 'block in Build#install'
/opt/homebrew/Library/Homebrew/extend/kernel.rb:303:in 'Kernel#with_env'
/opt/homebrew/Library/Homebrew/build.rb:143:in 'Build#install'
/opt/homebrew/Library/Homebrew/build.rb:270:in '<main>'
> brew postinstall rustup --debug
==> Postinstalling rustup
Warning: The post-install step did not complete successfully
You can try again using:
brew postinstall rustup
==> An exception occurred within a child process:
FormulaUnavailableError: No available formula with the name "rustup". Did you mean rust or rustic?
/opt/homebrew/Library/Homebrew/formulary.rb:1005:in 'Formulary::NullLoader#get_formula'
/opt/homebrew/Library/Homebrew/formulary.rb:1168:in 'Formulary.factory'
/opt/homebrew/Library/Homebrew/formulary.rb:549:in 'Formulary.resolve'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:487:in 'Homebrew::CLI::NamedArgs#resolve_formula'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:369:in 'block in Homebrew::CLI::NamedArgs#load_formula_or_cask'
/opt/homebrew/Library/Homebrew/api.rb:373:in 'Homebrew.with_no_api_env_if_needed'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:360:in 'Homebrew::CLI::NamedArgs#load_formula_or_cask'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:350:in 'Homebrew::CLI::NamedArgs#load_and_fetch_full_formula_or_cask'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:87:in 'block in Homebrew::CLI::NamedArgs#to_formulae_and_casks'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:86:in 'Array#each'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:86:in 'Enumerable#flat_map'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:86:in 'Homebrew::CLI::NamedArgs#to_formulae_and_casks'
/opt/homebrew/Library/Homebrew/cli/named_args.rb:180:in 'Homebrew::CLI::NamedArgs#to_resolved_formulae'
/opt/homebrew/Library/Homebrew/postinstall.rb:28:in '<main>'... it looks like the problem is unfortunately not completely fixed? Why is PS: It is true that a reinstallation will reset this to normal, but this looks like a problem nonetheless. |
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This is a separate issue and I think it's first known in Homebrew/brew#20940 (review). Can you please open an issue in Homebrew/brew for this? |
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Thanks -- this is an issue with
brew. I've filed Homebrew/brew#20984.As a workaround, you can run
brew postinstall rustupmanually which should succeed.