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GH-143948: Explain graphlib's cycle-finding code #180254

GH-143948: Explain graphlib's cycle-finding code

GH-143948: Explain graphlib's cycle-finding code #180254

Triggered via pull request January 17, 2026 01:57
Status Cancelled
Total duration 3m 39s
Artifacts 1

build.yml

on: pull_request
Change detection  /  Create context from changed files
11s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests with AWS-LC
Matrix: Ubuntu SSL tests with OpenSSL
Matrix: build-ubuntu
Matrix: build-windows-msi
Waiting for pending jobs
Matrix: build-windows
Matrix: cifuzz
Waiting for pending jobs
Check if Autoconf files are up to date
26s
Check if Autoconf files are up to date
Check if generated files are up to date
3m 2s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
11s
C API Docs / Check if all C APIs are documented
iOS
3m 6s
iOS
WASI  /  build and test
2m 49s
WASI / build and test
Hypothesis tests on Ubuntu
3m 3s
Hypothesis tests on Ubuntu
Cross build Linux
3m 3s
Cross build Linux
Docs  /  Check EPUB
Docs / Check EPUB
Docs  /  Docs
Docs / Docs
Docs  /  Doctest
Docs / Doctest
Matrix: build-android
All required checks pass
2s
All required checks pass
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81 errors and 16 warnings
WASI / build and test
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
WASI / build and test
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Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.3.5)
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Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.3.5)
The operation was canceled.
Windows / Build and test (x64)
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Windows / Build and test (x64)
The operation was canceled.
Windows (free-threading) / Build and test (x64)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Windows (free-threading) / Build and test (x64)
The operation was canceled.
Check if generated files are up to date
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Check if generated files are up to date
The operation was canceled.
Address sanitizer (ubuntu-24.04)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Address sanitizer (ubuntu-24.04)
The operation was canceled.
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.0.18)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.0.18)
The operation was canceled.
Ubuntu / build and test (ubuntu-24.04-arm)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu / build and test (ubuntu-24.04-arm)
The operation was canceled.
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.4.3)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.4.3)
The operation was canceled.
Hypothesis tests on Ubuntu
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Hypothesis tests on Ubuntu
The operation was canceled.
Android (aarch64)
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Android (aarch64)
The operation was canceled.
Ubuntu (free-threading) / build and test (ubuntu-24.04-arm)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 1.1.1w)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu (free-threading) / build and test (ubuntu-24.04-arm)
The operation was canceled.
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 1.1.1w)
The operation was canceled.
Ubuntu (bolt) / build and test (ubuntu-24.04)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Cross build Linux
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu (bolt) / build and test (ubuntu-24.04)
The operation was canceled.
Cross build Linux
The operation was canceled.
Ubuntu / build and test (ubuntu-24.04)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu / build and test (ubuntu-24.04)
The operation was canceled.
Ubuntu SSL tests with AWS-LC (ubuntu-24.04, 1.55.0)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu SSL tests with AWS-LC (ubuntu-24.04, 1.55.0)
The operation was canceled.
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.5.4)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.5.4)
The operation was canceled.
Ubuntu (free-threading) / build and test (ubuntu-24.04)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu (free-threading) / build and test (ubuntu-24.04)
The operation was canceled.
Sanitizers / TSan (free-threading)
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Sanitizers / TSan (free-threading)
The operation was canceled.
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.2.6)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Ubuntu SSL tests with OpenSSL (ubuntu-24.04, 3.2.6)
The operation was canceled.
Android (x86_64)
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Android (x86_64)
The operation was canceled.
Sanitizers / UBSan
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Sanitizers / UBSan
The operation was canceled.
Sanitizers / TSan
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Sanitizers / TSan
The operation was canceled.
Windows / Build and test (arm64)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Windows / Build and test (arm64)
The operation was canceled.
macOS / build and test (macos-14)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
macOS / build and test (macos-14)
The operation was canceled.
iOS
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
iOS
The operation was canceled.
macOS (free-threading) / build and test (macos-14)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
macOS (free-threading) / build and test (macos-14)
The operation was canceled.
Windows (free-threading) / Build and test (arm64)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Windows (free-threading) / Build and test (arm64)
The operation was canceled.
macOS / build and test (macos-15-intel)
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
macOS / build and test (macos-15-intel)
The operation was canceled.
Windows / Build and test (Win32)
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Windows / Build and test (Win32)
The operation was canceled.
All required checks pass
Process completed with exit code 1.
Tests
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Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
Tests
Canceling since a higher priority waiting request for Tests-tim-one-cycle exists
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-14)
Already linked: /opt/homebrew/Cellar/tcl-tk/9.0.3
macOS / build and test (macos-14)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-14)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS / build and test (macos-14)
xz 5.8.2 is already installed and up-to-date. To reinstall 5.8.2, run: brew reinstall xz
macOS / build and test (macos-14)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf
macOS (free-threading) / build and test (macos-14)
Already linked: /opt/homebrew/Cellar/tcl-tk/9.0.3
macOS (free-threading) / build and test (macos-14)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-14)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS (free-threading) / build and test (macos-14)
xz 5.8.2 is already installed and up-to-date. To reinstall 5.8.2, run: brew reinstall xz
macOS (free-threading) / build and test (macos-14)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf
macOS / build and test (macos-15-intel)
Already linked: /usr/local/Cellar/tcl-tk/9.0.3
macOS / build and test (macos-15-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-15-intel)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS / build and test (macos-15-intel)
xz 5.8.2 is already installed and up-to-date. To reinstall 5.8.2, run: brew reinstall xz
macOS / build and test (macos-15-intel)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
388 Bytes
sha256:90236a91406ee05218d888e24c622833975fe5b64961df4858c3393f10aad86f