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gh-153062: Fix a crash iterating itertools.tee on the free-threaded build #200843

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gh-153062: Fix a crash iterating itertools.tee on the free-threaded build

gh-153062: Fix a crash iterating itertools.tee on the free-threaded build #200843

Triggered via pull request July 10, 2026 01:19
@tonghuaroottonghuaroot
synchronize #153063
tonghuaroot:tee-next-ft-crash
Status Success
Total duration 32m 40s
Artifacts 2

build.yml

on: pull_request
Change detection  /  Create context from changed files
13s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests
Matrix: build-ubuntu
Matrix: build-windows-msi
Waiting for pending jobs
Matrix: build-windows
Matrix: cifuzz
Docs  /  Doctest
6m 55s
Docs / Doctest
Docs  /  Check EPUB
2m 2s
Docs / Check EPUB
Check if Autoconf files are up to date
31s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 40s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
9s
C API Docs / Check if all C APIs are documented
iOS
17m 51s
iOS
Emscripten  /  build and test
19m 47s
Emscripten / build and test
WASI  /  build and test
5m 21s
WASI / build and test
Hypothesis tests on Ubuntu
9m 55s
Hypothesis tests on Ubuntu
Sanitizers  /  TSan (free-threading)
19m 53s
Sanitizers / TSan (free-threading)
Cross build Linux
4m 49s
Cross build Linux
Docs  /  Docs
2m 18s
Docs / Docs
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 7s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
5s
All required checks pass
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Annotations

2 errors and 7 warnings
Docs / Check EPUB
Process completed with exit code 1.
Docs / Docs
Process completed with exit code 2.
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
macOS / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-intel)
The following taps are not trusted: aws/tap Homebrew is currently ignoring formulae, casks and commands from these taps because tap trust is required. Untap them with: brew untap aws/tap Trust specific formulae, casks and commands with: brew trust --formula <user>/<tap>/<formula> brew trust --cask <user>/<tap>/<cask> brew trust --command <user>/<tap>/<command> Whole-tap trust is broader and includes all current and future formulae, casks and commands from the listed taps. Trust whole taps with: brew trust aws/tap To disable trust checks: export HOMEBREW_NO_REQUIRE_TAP_TRUST=1 This is not recommended and will be removed in a later release. For more information, see: https://docs.brew.sh/Tap-Trust

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
1.59 KB
sha256:218f6e433927dccaf9dde8ae9d611f84a3555748dca7a6d9f9a3e9855365fd1f
html-ids-head.json.gz
125 KB
sha256:bf5db3699cfdcadef74a3699183d3755f0bb6b2e59cab5100281cf713dcef628