To repro:

1. Open the project.
2. Run PhysicsHistoryBuffer_ParallelReaderThrowIfUsingADisposedBuffer test.

Actual result: Editor crashes.

Reproduces on 2019.3.13.f1, 2020.1.0b9

No stacktrace available, in system stack there is:

36 libmonobdwgc-2.0.dylib 0x0000000142511bf4 mono_jit_runtime_invoke + 2519
37 libmonobdwgc-2.0.dylib 0x00000001426d4f35 do_runtime_invoke + 80
38 libmonobdwgc-2.0.dylib 0x00000001426d4e93 mono_runtime_invoke + 31
39 com.unity3d.UnityEditor5.x 0x00000001054eaf07 scripting_method_invoke(ScriptingMethodPtr, ScriptingObjectPtr, ScriptingArguments&, ScriptingExceptionPtr*, bool) + 71
40 com.unity3d.UnityEditor5.x 0x00000001054e48e7 ScriptingInvocation::Invoke(ScriptingExceptionPtr*, bool) + 471
41 com.unity3d.UnityEditor5.x 0x0000000103a041a7 Scripting::UnityEditor::EditorApplicationProxy::Internal_CallUpdateFunctions(ScriptingExceptionPtr*) + 327
42 com.unity3d.UnityEditor5.x 0x0000000105f6ac9d SceneTracker::Update() + 109
43 com.unity3d.UnityEditor5.x 0x00000001061e4ded Application::TickTimer() + 3357
44 com.unity3d.UnityEditor5.x 0x0000000108457cc5 -[EditorApplication TickTimer] + 325
45 com.apple.Foundation 0x00007fff39d013ca __NSFireTimer + 67
46 com.apple.CoreFoundation 0x00007fff3762a9b9 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
47 com.apple.CoreFoundation 0x00007fff3762a51f __CFRunLoopDoTimer + 859
48 com.apple.CoreFoundation 0x00007fff3762a007 __CFRunLoopDoTimers + 322
49 com.apple.CoreFoundation 0x00007fff3760edaa __CFRunLoopRun + 1871
50 com.apple.CoreFoundation 0x00007fff3760dffe CFRunLoopRunSpecific + 462
51 com.apple.HIToolbox 0x00007fff36241abd RunCurrentEventLoopInMode + 292
52 com.apple.HIToolbox 0x00007fff362416f4 ReceiveNextEventCommon + 359
53 com.apple.HIToolbox 0x00007fff36241579 _BlockUntilNextEventMatchingListInModeWithFilter + 64
54 com.apple.AppKit 0x00007fff3488cc99 _DPSNextEvent + 883
55 com.apple.AppKit 0x00007fff3488b4e0 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
56 com.unity3d.UnityEditor5.x 0x0000000108457b1f -[EditorApplication checkForFocusChange:] + 79
57 com.apple.Foundation 0x00007fff39d013ca __NSFireTimer + 67
58 com.apple.CoreFoundation 0x00007fff3762a9b9 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
59 com.apple.CoreFoundation 0x00007fff3762a51f __CFRunLoopDoTimer + 859
60 com.apple.CoreFoundation 0x00007fff3762a007 __CFRunLoopDoTimers + 322
61 com.apple.CoreFoundation 0x00007fff3760edaa __CFRunLoopRun + 1871
62 com.apple.CoreFoundation 0x00007fff3760dffe CFRunLoopRunSpecific + 462
63 com.apple.HIToolbox 0x00007fff36241abd RunCurrentEventLoopInMode + 292
64 com.apple.HIToolbox 0x00007fff362417d5 ReceiveNextEventCommon + 584
65 com.apple.HIToolbox 0x00007fff36241579 _BlockUntilNextEventMatchingListInModeWithFilter + 64
66 com.apple.AppKit 0x00007fff3488cc99 _DPSNextEvent + 883
67 com.apple.AppKit 0x00007fff3488b4e0 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
68 com.apple.AppKit 0x00007fff3487d1ee -[NSApplication run] + 658
69 com.apple.AppKit 0x00007fff3484eff6 NSApplicationMain + 777
70 com.unity3d.UnityEditor5.x 0x0000000108495dd7 EditorMain(int, char const**) + 759
71 com.unity3d.UnityEditor5.x 0x0000000108495f79 main + 9
72 libdyld.dylib 0x00007fff71556cc9 start + 1