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feat(perf): #263-A — the measurement instrument (phase A: prerequisites and merge-gate wiring; CALIBRATION_ONLY, no admissible baseline) #1988

feat(perf): #263-A — the measurement instrument (phase A: prerequisites and merge-gate wiring; CALIBRATION_ONLY, no admissible baseline)

feat(perf): #263-A — the measurement instrument (phase A: prerequisites and merge-gate wiring; CALIBRATION_ONLY, no admissible baseline) #1988

Triggered via pull request September 10, 2026 16:12
Status Success
Total duration 10m 26s
Artifacts 4

ci.yml

on: pull_request
C# leak extractor (Roslyn) -> OwnIR -> core
6m 34s
C# leak extractor (Roslyn) -> OwnIR -> core
lint (ruff + mypy --strict)
17s
lint (ruff + mypy --strict)
rust (fmt + clippy + tests)
34s
rust (fmt + clippy + tests)
Windows-native mutation campaign (own-check.ps1 + the drive-rooted locator arm)
7m 36s
Windows-native mutation campaign (own-check.ps1 + the drive-rooted locator arm)
Stage-2 mutation campaign, Windows verdict (gate only, records nothing)
3m 46s
Stage-2 mutation campaign, Windows verdict (gate only, records nothing)
shadow compare (committed corpus)
1m 14s
shadow compare (committed corpus)
audit aggregation selftests
7s
audit aggregation selftests
release-workflow environment-protection predicate (fixture-driven)
5s
release-workflow environment-protection predicate (fixture-driven)
extended codegen fuzz
38s
extended codegen fuzz
golden C# compiles & runs (.NET)
58s
golden C# compiles & runs (.NET)
OwnTS (React useEffect) -> OwnIR -> core
11s
OwnTS (React useEffect) -> OwnIR -> core
OwnTS OSS true positives -> runtime leak proof (jsdom)
11s
OwnTS OSS true positives -> runtime leak proof (jsdom)
own-check repo scan (github + msbuild) + composite action
1m 30s
own-check repo scan (github + msbuild) + composite action
own-check.ps1 exit-code tiers (Windows)
1m 39s
own-check.ps1 exit-code tiers (Windows)
own-check SARIF -> GitHub code scanning (Rust dog-food)
1m 4s
own-check SARIF -> GitHub code scanning (Rust dog-food)
P-014 Tier B — external reference resolution (--ref-dir)
37s
P-014 Tier B — external reference resolution (--ref-dir)
corpus benchmark (real C# recall + specificity)
4m 19s
corpus benchmark (real C# recall + specificity)
Matrix: own-cli (ownir parity replay)
Matrix: owen CLI (gate A) — clean install -> check -> findings
Matrix: #263-A measurement instrument (CALIBRATION_ONLY)
Matrix: owen --engine (#262 Stage 1 controls)
Matrix: Rust-default dogfood (Own.NET's own tree, via own-cli)
Matrix: tests
shadow compare (C# samples)
41s
shadow compare (C# samples)
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Annotations

20 errors and 71 warnings
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CloseReleaseSample.cs#L37
IDisposable field '_xconn' (type 'FakeConnection') is never disposed — its owner 'ClosesOtherInstanceField' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/CloseReleaseSample.cs#L26
IDisposable field '_leakedConn' (type 'FakeConnection') is never disposed — its owner 'LeaksUnclosed' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L54
event 'SomeBus.Pinged' is subscribed (handler '(_, _) => cts.Cancel()') to a static (process-lived) event source that outlives 'NonAppDomainSubscriber'; the strong subscription promotes 'NonAppDomainSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path — and being an inline lambda it has no '-=' handle, so it could never be detached)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L34
event 'AppDomain.CurrentDomain.ProcessExit' is subscribed (handler '(_, _) => _count++') to a static (process-lived) event source that outlives 'CapturingShutdownSubscriber'; the strong subscription promotes 'CapturingShutdownSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path — and being an inline lambda it has no '-=' handle, so it could never be detached)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L75
IDisposable field '_scopedLeak' (type 'CancellationTokenSource') is never disposed — its owner 'ScopedAliasNameLeak' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L57
IDisposable field '_refRebound' (type 'CancellationTokenSource') is never disposed — its owner 'RefReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L42
IDisposable field '_rebound' (type 'CancellationTokenSource') is never disposed — its owner 'ReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L29
IDisposable field '_neverDisposed' (type 'CancellationTokenSource') is never disposed — its owner 'AliasNeverDisposes' leaks it (leak)
OWN001: frontend/roslyn/samples/ColumnAnchorsSample.cs#L51
[OWN001] IDisposable local 'second' is never disposed (leak) [resource: disposable]
OWN001: frontend/roslyn/samples/ColumnAnchorsSample.cs#L51
[OWN001] IDisposable local 'first' is never disposed (leak) [resource: disposable]
OWN001: frontend/roslyn/samples/CloseReleaseSample.cs#L37
[OWN001] IDisposable field '_xconn' (type 'FakeConnection') is never disposed — its owner 'ClosesOtherInstanceField' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/CloseReleaseSample.cs#L26
[OWN001] IDisposable field '_leakedConn' (type 'FakeConnection') is never disposed — its owner 'LeaksUnclosed' leaks it (leak) [resource: disposable field]
OWN014: frontend/roslyn/samples/AppDomainShutdownSample.cs#L54
[OWN014] event 'SomeBus.Pinged' is subscribed (handler '(_, _) => cts.Cancel()') to a static (process-lived) event source that outlives 'NonAppDomainSubscriber'; the strong subscription promotes 'NonAppDomainSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path — and being an inline lambda it has no '-=' handle, so it could never be detached) [resource: subscription token]
OWN014: frontend/roslyn/samples/AppDomainShutdownSample.cs#L34
[OWN014] event 'AppDomain.CurrentDomain.ProcessExit' is subscribed (handler '(_, _) => _count++') to a static (process-lived) event source that outlives 'CapturingShutdownSubscriber'; the strong subscription promotes 'CapturingShutdownSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path — and being an inline lambda it has no '-=' handle, so it could never be detached) [resource: subscription token]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L75
[OWN001] IDisposable field '_scopedLeak' (type 'CancellationTokenSource') is never disposed — its owner 'ScopedAliasNameLeak' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L57
[OWN001] IDisposable field '_refRebound' (type 'CancellationTokenSource') is never disposed — its owner 'RefReboundAliasLeaks' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L42
[OWN001] IDisposable field '_rebound' (type 'CancellationTokenSource') is never disposed — its owner 'ReboundAliasLeaks' leaks it (leak) [resource: disposable field]
OWN001: frontend/roslyn/samples/AliasDisposeSample.cs#L29
[OWN001] IDisposable field '_neverDisposed' (type 'CancellationTokenSource') is never disposed — its owner 'AliasNeverDisposes' leaks it (leak) [resource: disposable field]
own-cli (ownir parity replay) (ubuntu-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
lint (ruff + mypy --strict)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
own-cli (ownir parity replay) (windows-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen CLI (gate A) — clean install -> check -> findings (ubuntu-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen CLI (gate A) — clean install -> check -> findings (ubuntu-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
release-workflow environment-protection predicate (fixture-driven)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Rust-default dogfood (Own.NET's own tree, via own-cli) (ubuntu-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Rust-default dogfood (Own.NET's own tree, via own-cli) (ubuntu-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L100
event 'service.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'CuratedOnlyApp' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L89
event 'themeManager.ThemeChanged' is subscribed (handler '(s, e) => counter[0]++') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'LambdaApp' alive (possible leak — and being an inline lambda it has no '-=' handle, so it could never be detached)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L74
event 'themeManager.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'NotAnApp' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L54
event 'SomeBus.Pinged' is subscribed (handler '(_, _) => cts.Cancel()') to a static (process-lived) event source that outlives 'NonAppDomainSubscriber'; the strong subscription promotes 'NonAppDomainSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path — and being an inline lambda it has no '-=' handle, so it could never be detached)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppDomainShutdownSample.cs#L34
event 'AppDomain.CurrentDomain.ProcessExit' is subscribed (handler '(_, _) => _count++') to a static (process-lived) event source that outlives 'CapturingShutdownSubscriber'; the strong subscription promotes 'CapturingShutdownSubscriber' to the source's lifetime, so it can never be collected — a region escape (leak, no release path — and being an inline lambda it has no '-=' handle, so it could never be detached)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasedSourceViewModel.cs#L23
event 'src.CustomerChanged' is subscribed (handler 'OnAliased') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'AliasedSourceViewModel' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L75
IDisposable field '_scopedLeak' (type 'CancellationTokenSource') is never disposed — its owner 'ScopedAliasNameLeak' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L57
IDisposable field '_refRebound' (type 'CancellationTokenSource') is never disposed — its owner 'RefReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L42
IDisposable field '_rebound' (type 'CancellationTokenSource') is never disposed — its owner 'ReboundAliasLeaks' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasDisposeSample.cs#L29
IDisposable field '_neverDisposed' (type 'CancellationTokenSource') is never disposed — its owner 'AliasNeverDisposes' leaks it (leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AssociatedObjectSourceSample.cs#L139
event 's0.Loaded' is subscribed (handler 'OnLoaded') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'ReassignedLocalBehavior' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AssociatedObjectSourceSample.cs#L118
event 'panel.Loaded' is subscribed (handler 'OnLoaded') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'MixedFieldBehavior' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AssociatedObjectSourceSample.cs#L100
event 'this.AssociatedObject.Loaded' is subscribed (handler 'OnLoaded') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'NotABehavior' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AssociatedObjectSourceSample.cs#L57
event '_bus.Changed' is subscribed (handler '(s, e) => Handle()') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'TiltLikeBehavior' alive (possible leak — and being an inline lambda it has no '-=' handle, so it could never be detached)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L137
event 'tm.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'ReassignApp' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L118
event 'themeManager.ThemeChanged' is subscribed (handler '_twin!.OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'TwinApp' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L100
event 'service.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'CuratedOnlyApp' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L89
event 'themeManager.ThemeChanged' is subscribed (handler '(s, e) => counter[0]++') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'LambdaApp' alive (possible leak — and being an inline lambda it has no '-=' handle, so it could never be detached)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AppScopedSourceSample.cs#L74
event 'themeManager.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'NotAnApp' alive (possible leak)
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/samples/AliasedSourceViewModel.cs#L23
event 'src.CustomerChanged' is subscribed (handler 'OnAliased') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'AliasedSourceViewModel' alive (possible leak)
OWN001: frontend/roslyn/samples/AssociatedObjectSourceSample.cs#L118
[OWN001] event 'panel.Loaded' is subscribed (handler 'OnLoaded') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'MixedFieldBehavior' alive (possible leak) [resource: subscription token]
OWN001: frontend/roslyn/samples/AssociatedObjectSourceSample.cs#L100
[OWN001] event 'this.AssociatedObject.Loaded' is subscribed (handler 'OnLoaded') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'NotABehavior' alive (possible leak) [resource: subscription token]
OWN001: frontend/roslyn/samples/AssociatedObjectSourceSample.cs#L57
[OWN001] event '_bus.Changed' is subscribed (handler '(s, e) => Handle()') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'TiltLikeBehavior' alive (possible leak — and being an inline lambda it has no '-=' handle, so it could never be detached) [resource: subscription token]
OWN001: frontend/roslyn/samples/AppScopedSourceSample.cs#L137
[OWN001] event 'tm.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'ReassignApp' alive (possible leak) [resource: subscription token]
OWN001: frontend/roslyn/samples/AppScopedSourceSample.cs#L118
[OWN001] event 'themeManager.ThemeChanged' is subscribed (handler '_twin!.OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'TwinApp' alive (possible leak) [resource: subscription token]
OWN001: frontend/roslyn/samples/AppScopedSourceSample.cs#L100
[OWN001] event 'service.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'CuratedOnlyApp' alive (possible leak) [resource: subscription token]
OWN001: frontend/roslyn/samples/AppScopedSourceSample.cs#L89
[OWN001] event 'themeManager.ThemeChanged' is subscribed (handler '(s, e) => counter[0]++') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'LambdaApp' alive (possible leak — and being an inline lambda it has no '-=' handle, so it could never be detached) [resource: subscription token]
OWN001: frontend/roslyn/samples/AppScopedSourceSample.cs#L74
[OWN001] event 'themeManager.ThemeChanged' is subscribed (handler 'OnTheme') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'NotAnApp' alive (possible leak) [resource: subscription token]
OWN001: frontend/roslyn/samples/AliasedSourceViewModel.cs#L23
[OWN001] event 'src.CustomerChanged' is subscribed (handler 'OnAliased') but never unsubscribed; its source is an injected dependency whose lifetime is unknown, so it may outlive and keep 'AliasedSourceViewModel' alive (possible leak) [resource: subscription token]
own-check repo scan (github + msbuild) + composite action: frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
P-014 Tier B — external reference resolution (--ref-dir)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
P-014 Tier B — external reference resolution (--ref-dir): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
extended codegen fuzz
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
own-check.ps1 exit-code tiers (Windows)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen CLI (gate A) — clean install -> check -> findings (windows-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen CLI (gate A) — clean install -> check -> findings (windows-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
golden C# compiles & runs (.NET)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
rust (fmt + clippy + tests)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
own-check SARIF -> GitHub code scanning (Rust dog-food)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
own-check SARIF -> GitHub code scanning (Rust dog-food): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
audit aggregation selftests
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen --engine (#262 Stage 1 controls) (ubuntu-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen --engine (#262 Stage 1 controls) (ubuntu-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
owen --engine (#262 Stage 1 controls) (ubuntu-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
shadow compare (committed corpus)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
OwnTS (React useEffect) -> OwnIR -> core
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
OwnTS OSS true positives -> runtime leak proof (jsdom)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-node@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
tests (py3.13)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
tests (py3.12)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Rust-default dogfood (Own.NET's own tree, via own-cli) (windows-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Rust-default dogfood (Own.NET's own tree, via own-cli) (windows-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
tests (py3.11)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen --engine (#262 Stage 1 controls) (windows-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
owen --engine (#262 Stage 1 controls) (windows-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
owen --engine (#262 Stage 1 controls) (windows-latest): frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
Stage-2 mutation campaign, Windows verdict (gate only, records nothing)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
corpus benchmark (real C# recall + specificity)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
C# leak extractor (Roslyn) -> OwnIR -> core
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065, actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
C# leak extractor (Roslyn) -> OwnIR -> core: frontend/roslyn/OwnSharp.Extractor/Program.cs#L5234
Argument of type 'IEnumerable<string?>' cannot be used for parameter 'collection' of type 'IEnumerable<string>' in 'HashSet<string>.HashSet(IEnumerable<string> collection, IEqualityComparer<string>? comparer)' due to differences in the nullability of reference types.
#263-A measurement instrument (CALIBRATION_ONLY) (ubuntu-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065, actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
shadow compare (C# samples)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
Windows-native mutation campaign (own-check.ps1 + the drive-rooted locator arm)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/
#263-A measurement instrument (CALIBRATION_ONLY) (windows-latest)
Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5, actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9, actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065, actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Artifacts

Produced during runtime
Name Size Digest
benchmark-scorecard
1.53 KB
sha256:179009cce4f7dbe32f723369ac98d444aad913917d1564b1d7f572d10ac27119
csharp-samples-ownir Expired
4.34 KB
sha256:7401691c8b62b07d7cfa888085ce62f0ef5c7482a9293b658ae6707b8d2f597b
perf-calibration-ubuntu-latest
20.9 KB
sha256:2e16450e2d9a9100abeb77d5527c8850699c8ffbb6087cdec0b717f7a2815bbe
perf-calibration-windows-latest
18.1 KB
sha256:4dcb289482e0eb32f6ea94b63805aeae09c5876e02a9e83de8f7de740c0f456f