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Run a job that the test suite with MSan to the CI #212043

Run a job that the test suite with MSan to the CI

Run a job that the test suite with MSan to the CI #212043

Triggered via pull request October 3, 2026 16:13
Status Failure
Total duration 33m 42s
Artifacts 2

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
Matrix: build-ubuntu
Matrix: build-windows
Matrix: cifuzz
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 3s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
6s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 17s
Ubuntu (installed) / build, install and test
iOS
20m 2s
iOS
Emscripten  /  build and test
13m 24s
Emscripten / build and test
WASI  /  build and test
4m 32s
WASI / build and test
Hypothesis tests on Ubuntu
8m 3s
Hypothesis tests on Ubuntu
Lazy imports enabled  /  Run Tests with lazy_imports=all
12m 46s
Lazy imports enabled / Run Tests with lazy_imports=all
Cross build Linux
4m 30s
Cross build Linux
Docs  /  Check EPUB
Docs / Check EPUB
Docs  /  Doctest
Docs / Doctest
Docs  /  Docs
Docs / Docs
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
4s
All required checks pass
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Annotations

2 errors, 7 warnings, and 11 notices
Sanitizers / MSan
Process completed with exit code 2.
All required checks pass
Process completed with exit code 1.
Cross build Linux: Parser/lexer/string.c#L86
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
Ubuntu (installed) / build, install and test: Parser/lexer/string.c#L86
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
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)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Address sanitizer (ubuntu-26.04): Parser/lexer/string.c#L86
variable ‘previous_end’ set but not used [-Wunused-but-set-variable]
Change detection / Create context from changed files
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
C API Docs / Check if all C APIs are documented
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Android (aarch64)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS (free-threading) / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
CIFuzz / cpython3 (address)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
iOS
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
CIFuzz / cpython3 (memory)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
CIFuzz / cpython3 (undefined)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
CIFuzz / python3-libraries (address)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
All required checks pass
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

Artifacts

Produced during runtime
Name Size Digest
MSan-logs-default
3.37 KB
sha256:c104aa157bc56b270a4a804d95bc3558ac8cfa8a9a9dba140938527e20d3f25c
UBSan-logs-default
1.51 KB
sha256:cdb3c71de293ccbf0c17d32778d13e54d142ae42957cf74543e9b50873b584b7