Test failure: Microsoft.Gen.OptionsValidation.Unit.Test.EmitterTests.InaccessibleValidationAttributesTest

[v-wenyuxu]

Failed in: runtime-coreclr libraries-pgo 20241124.1

Failed tests:

net10.0-windows-Release-x86-jitosr_stress-Windows.10.Amd64.Open
    - Microsoft.Gen.OptionsValidation.Unit.Test.EmitterTests.InaccessibleValidationAttributesTest
net10.0-windows-Release-x86-jitosr_stress_random-Windows.10.Amd64.Open
    - Microsoft.Gen.OptionsValidation.Unit.Test.EmitterTests.InaccessibleValidationAttributesTest
net10.0-windows-Release-x86-jitoldlayout-Windows.10.Amd64.Open
    - Microsoft.Gen.OptionsValidation.Unit.Test.EmitterTests.InaccessibleValidationAttributesTest

Error message:

 Microsoft.DotNet.RemoteExecutor.RemoteExecutionException : Remote process failed with an unhandled exception.

Stack trace:

 
Child exception:
  System.AggregateException: One or more errors occurred. (One or more errors occurred. (Object reference not set to an instance of an object.))
 ---> System.AggregateException: One or more errors occurred. (Object reference not set to an instance of an object.)
 ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceMemberContainerTypeSymbol.ToNameKeyedDictionary(ImmutableArray`1 symbols)
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceMemberContainerTypeSymbol.MakeAllMembers(BindingDiagnosticBag diagnostics)
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceMemberContainerTypeSymbol.GetMembersByNameSlow()
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceMemberContainerTypeSymbol.ForceComplete(SourceLocation locationOpt, Predicate`1 filter, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.CSharp.Symbol.ForceCompleteMemberConditionally(SourceLocation locationOpt, Predicate`1 filter, Symbol member, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.CSharp.Symbols.SourceNamespaceSymbol.<>c__DisplayClass66_1.<ForceComplete>b__0(Int32 i)
   at Roslyn.Utilities.UICultureUtilities.<>c__DisplayClass6_0`1.<WithCurrentUICulture>b__0(T param)
   at Roslyn.Utilities.RoslynParallel.<>c__DisplayClass1_0.<For>g__errorHandlingBody|0(Int32 i)
   at System.Threading.Tasks.Parallel.<>c__DisplayClass19_0`2.<ForWorker>b__1(RangeWorker& currentWorker, Int64 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/Parallel.cs:line 1053
--- End of stack trace from previous location ---
   at System.Threading.Tasks.Parallel.<>c__DisplayClass19_0`2.<ForWorker>b__1(RangeWorker& currentWorker, Int64 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/Parallel.cs:line 1096
   at System.Threading.Tasks.TaskReplicator.Replica`1.ExecuteAction(Boolean& yieldedBeforeCompletion) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/TaskReplicator.cs:line 120
   at System.Threading.Tasks.TaskReplicator.Replica.Execute() in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/TaskReplicator.cs:line 75
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.TaskReplicator.Run[TState](ReplicatableUserAction`1 action, ParallelOptions options, Boolean stopOnFirstFailure) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/TaskReplicator.cs:line 158
   at System.Threading.Tasks.Parallel.ForWorker[TLocal,TInt](TInt fromInclusive, TInt toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/Parallel.cs:line 982
--- End of stack trace from previous location ---
   at System.Threading.Tasks.Parallel.ThrowSingleCancellationExceptionOrOtherException(ICollection exceptions, CancellationToken cancelToken, Exception otherException) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/Parallel.cs:line 2848
   at System.Threading.Tasks.Parallel.ForWorker[TLocal,TInt](TInt fromInclusive, TInt toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/Parallel.cs:line 1131
   at System.Threading.Tasks.Parallel.For(Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body) in /_/src/libraries/System.Threading.Tasks.Parallel/src/System/Threading/Tasks/Parallel.cs:line 455
   at Roslyn.Utilities.RoslynParallel.For(Int32 fromInclusive, Int32 toExclusive, Action`1 body, CancellationToken cancellationT

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[EgorBo]

Likely same as #110127

[EgorBo]

Closed by #110129 (and doesn't repro in #110142)