RSRP-468659: UnitTestArtefactExplorationProcess.ScheduleExplorationIfOutdatedCore holds uninterruptable read lock

1746e854 56c6eaf6 [HelperMethodFrame_1OBJ: 1746e854] System.Threading.WaitHandle.WaitOneNative(System.Runtime.InteropServices.SafeHandle, UInt32, Boolean, Boolean)
1746e938 55ca31e1 System.Threading.WaitHandle.InternalWaitOne(System.Runtime.InteropServices.SafeHandle, Int64, Boolean, Boolean)
1746e950 55ca31a8 System.Threading.WaitHandle.WaitOne(Int32, Boolean)
1746e964 5506932a System.Diagnostics.Process.WaitForExit(Int32)
1746e99c 34cf0640 JetBrains.ReSharper.UnitTestFramework.Processes.PreparedProcess.WaitForExit(System.Nullable1<System.TimeSpan>)
1746e9f0 34abd531 JetBrains.ReSharper.UnitTestFramework.Processes.PreparedProcess.RunAndWait()
1746ea10 34aba816 JetBrains.ReSharper.UnitTestFramework.DotNetCore.DotNetCoreSdkResolver.GetVersionCore(JetBrains.ProjectModel.IProject)
1746ea4c 55cab1f9 System.Collections.Concurrent.ConcurrentDictionary2[[System.__Canon, mscorlib],[System.__Canon, mscorlib]].GetOrAdd(System.__Canon, System.Func2<System.__Canon,System.__Canon>)
1746ea64 34aba4dd JetBrains.ReSharper.UnitTestFramework.DotNetCore.DotNetCoreSdkResolver.GetVersion(JetBrains.ProjectModel.IProject)
1746ea78 34aba459 JetBrains.ReSharper.UnitTestFramework.DotNetCore.DotNetTest.DotNetTestArtefactExplorer1[[System.__Canon, mscorlib]].IsSupported(JetBrains.ProjectModel.IProject, JetBrains.Metadata.Reader.API.TargetFrameworkId)
1746ea90 34ab9f1c JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationRunner+<>c__DisplayClass4.<ProcessProject>b__1(JetBrains.ReSharper.UnitTestFramework.Exploration.IUnitTestExplorerFromArtefacts)
1746ea9c 53abd965 System.Linq.Enumerable+WhereSelectArrayIterator2[[System.__Canon, mscorlib],[System.__Canon, mscorlib]].MoveNext()
1746eaac 53ae32c9 System.Linq.Buffer1[[System.__Canon, mscorlib]]..ctor(System.Collections.Generic.IEnumerable1<System.__Canon>)
1746eae8 53ae2a9e System.Linq.Enumerable.ToArray[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable1<System.__Canon>)
1746eb10 34ab97c5 JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationRunner+<>c__DisplayClass4.<ProcessProject>b__0()
1746eb34 34ab91a2 JetBrains.Util.Threading.SynchronizedLifetime.ExecuteIfNotTerminated[[System.__Canon, mscorlib]](System.Func1<System.__Canon>)
1746eb74 34ab8cce JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationRunner.ProcessProject(JetBrains.ProjectModel.IProject, JetBrains.Metadata.Reader.API.TargetFrameworkId, System.Threading.CancellationToken)
1746eb90 34ab80bf JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcess+ExplorationTask.ScheduleExplorationIfOutdatedCore(System.Func4<JetBrains.ProjectModel.IProject,JetBrains.Metadata.Reader.API.TargetFrameworkId,System.Threading.CancellationToken,System.Threading.Tasks.Task>, System.Threading.CancellationToken)
1746ebec 34ab5966 JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcess+ExplorationTask.ScheduleExplorationIfOutdated(System.Func4<JetBrains.ProjectModel.IProject,JetBrains.Metadata.Reader.API.TargetFrameworkId,System.Threading.CancellationToken,System.Threading.Tasks.Task>, System.Threading.CancellationToken)
1746ec20 34ab4ebd JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcess+<>c__DisplayClass7.<ExploreProjectWithTargetFramework>b__5(ExplorationTarget)
1746ec40 34ab47a5 System.Collections.Concurrent.ConcurrentDictionary2[[JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcess+ExplorationTarget, JetBrains.ReSharper.UnitTestFramework],[System.__Canon, mscorlib]].AddOrUpdate(ExplorationTarget, System.Func2<ExplorationTarget,System.__Canon>, System.Func3<ExplorationTarget,System.__Canon,System.__Canon>)
1746ec68 34ab4691 JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcess.ExploreProjectWithTargetFramework(JetBrains.ProjectModel.IProject, JetBrains.Metadata.Reader.API.TargetFrameworkId, System.Threading.CancellationToken)
1746ec90 34ab4377 JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcess+<>c__DisplayClass3.<ExploreProject>b__2(JetBrains.Metadata.Reader.API.TargetFrameworkId)
1746ec98 53ae133d System.Linq.Enumerable+WhereSelectEnumerableIterator2[[System.__Canon, mscorlib],[System.__Canon, mscorlib]].MoveNext()
1746eca8 53ae32c9 System.Linq.Buffer1[[System.__Canon, mscorlib]]..ctor(System.Collections.Generic.IEnumerable1<System.__Canon>)
1746ece4 53ae2a9e System.Linq.Enumerable.ToArray[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable1<System.__Canon>)
1746ed0c 34ab41b1 JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcess.ExploreProject(JetBrains.ProjectModel.IProject, System.Threading.CancellationToken)
1746ed28 34ab3efb JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcessExtensions+<>c__DisplayClass1.<ExploreProjects>b__0(JetBrains.ProjectModel.IProject)
1746ed30 53abe975 System.Linq.Enumerable+WhereSelectListIterator2[[System.__Canon, mscorlib],[System.__Canon, mscorlib]].MoveNext()
1746ed40 53ae3310 System.Linq.Buffer1[[System.__Canon, mscorlib]]..ctor(System.Collections.Generic.IEnumerable1<System.__Canon>)
1746ed7c 53ae2a9e System.Linq.Enumerable.ToArray[[System.__Canon, mscorlib]](System.Collections.Generic.IEnumerable1<System.__Canon>)
1746eda4 34ab3e42 JetBrains.ReSharper.UnitTestFramework.Exploration.UnitTestArtefactExplorationProcessExtensions.ExploreProjects(JetBrains.ReSharper.UnitTestFramework.Exploration.IUnitTestArtefactExplorationProcess, System.Collections.Generic.IEnumerable1<JetBrains.ProjectModel.IProject>, System.Threading.CancellationToken)
1746edc0 34ab37bd JetBrains.ReSharper.UnitTestFramework.Initialization.InitialExplorationTask+<>c__DisplayClass5.<.ctor>b__0(System.Threading.Tasks.Task)
1746ede0 55d16942 System.Threading.Tasks.ContinuationResultTaskFromTask1[[System.__Canon, mscorlib]].InnerInvoke()
1746edf4 55d311f0 System.Threading.Tasks.Task.Execute()
1746ee18 55d3160a System.Threading.Tasks.Task.ExecutionContextCallback(System.Object)
1746ee1c 55c966ea System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
1746ee8c 55c965f6 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
1746eea0 55d31488 System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef)
1746ef04 55d3134f System.Threading.Tasks.Task.ExecuteEntry(Boolean)
1746ef14 55d023fa System.Threading.Tasks.TaskScheduler.TryExecuteTask(System.Threading.Tasks.Task)
1746ef20 153ff855 JetBrains.Application.Threading.Tasks.Scheduler.JetScheduler.ExecuteTask(System.Threading.Tasks.Task)
1746ef64 153ff210 JetBrains.Application.Threading.Tasks.Scheduler.JetSchedulerThread.EnqueueNextTask()
1746ef8c 153fcd9c JetBrains.Application.Threading.Tasks.Scheduler.JetSchedulerThread.ThreadPoolProc()
1746efe4 55c76d11 System.Threading.ThreadHelper.ThreadStart_Context(System.Object)
1746eff0 55c966ea System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
1746f060 55c965f6 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
1746f074 55c965b1 System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
1746f08c 55c76c6c System.Threading.ThreadHelper.ThreadStart()
1746f1d0 56c6eaf6 [GCFrame: 1746f1d0]
1746f3b4 56c6eaf6 [DebuggerU2MCatchHandlerFrame: 1746f3b4]
OS Thread Id: 0x27f4 (19)