Formula fails to download with concurrency enabled #21425
Description
brew doctor output
==> brew doctorVerification
- I ran
brew updatetwice and am still able to reproduce my issue. - My "
brew doctoroutput" above saysYour system is ready to brewor a definitely unrelatedTiermessage. - This issue's title and/or description do not reference a single formula e.g.
brew install wget. If they do, open an issue at https://github.com/Homebrew/homebrew-core/issues/new/choose instead.
brew config output
==> brew config
HOMEBREW_VERSION: 5.0.10-65-ga36eea6
ORIGIN: https://github.com/Homebrew/brew
HEAD: a36eea6fe705eef966f0acd609e471c9b7541a6b
Last commit: 11 hours ago
Branch: main
Core tap HEAD: b0f1243ca3c85c75101842d5f7fbcda7a8f3d393
Core tap last commit: 86 minutes ago
Core tap JSON: 18 Jan 20:47 UTC
Core cask tap JSON: 18 Jan 20:47 UTC
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CACHE: /Users/brew/Library/Caches/Homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_COLOR: set
HOMEBREW_CURL_PATH: /usr/bin/curl
HOMEBREW_DEVELOPER: set
HOMEBREW_DOWNLOAD_CONCURRENCY: 12
HOMEBREW_FAIL_LOG_LINES: 150
HOMEBREW_GITHUB_API_TOKEN: set
HOMEBREW_GIT_EMAIL: [email protected]
HOMEBREW_GIT_NAME: BrewTestBot
HOMEBREW_GIT_PATH: /usr/bin/git
HOMEBREW_LOGS: /Users/brew/actions-runner/_work/homebrew-core/homebrew-core/logs
HOMEBREW_MAKE_JOBS: 6
HOMEBREW_NO_AUTO_UPDATE: set
HOMEBREW_NO_COLOR: set
HOMEBREW_NO_EMOJI: set
HOMEBREW_NO_ENV_HINTS: set
HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK: set
HOMEBREW_NO_INSTALL_FROM_API: set
HOMEBREW_SORBET_RUNTIME: set
Homebrew Ruby: 3.4.8 => /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/3.4.8/bin/ruby
CPU: hexa-core 64-bit penryn
Clang: 17.0.0 build 1700
Git: 2.50.1 => /usr/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 26.2-x86_64
CLT: 26.2.0.0.1.1764812424
Xcode: 26.2What were you trying to do (and why)?
Install docbook as part of Homebrew/homebrew-core#263408
What happened (include all command output)?
The download failed:
==> Fetching downloads for: docbook
✘ Formula docbook (5.2)
Error: A `brew install --verbose --formula --build-bottle docbook` process has already locked /Users/brew/Library/Caches/Homebrew/downloads/6605b9548ee0cc64c64f63685f53396ccaf3c8b1c0f21f6abde7e27c492bebab--docbook-5.2.zip.incomplete.What did you expect to happen?
A succesful download
Step-by-step reproduction instructions (by running brew commands)
cd $(brew --repo homebrew/core)
gh pr checkout -f 263408
brew install -s docbook