Question Calling ArchetypeChunk.GetNativeArray() with generic type throws exception in builds

The call stack in wasm build looked like:

Code (CSharp):

1. il2cpp::os::CrashHelpers::CrashImpl()
2. il2cpp::os::CrashHelpers::Crash()
3. tiny::vm::Exception::Raise(char const*)
4. tiny::vm::Exception::Raise(Il2CppException*)
5. Unity.Entities.ArchetypeChunk.GetNativeArray<TestComponent>(Unity.Entities.ArchetypeChunk* this, Unity.Entities.ComponentTypeHandle`1<TestComponent> chunkComponentTypeHandle)_1A2F49CFDE7818D7
6. GenericJob_Execute_m5A535D7AEC1C09F2265FE73601EA3F293114A3D1
7. ...

Here is the minimum code I could find to reproduce:

Code (CSharp):

1. using Unity.Burst;
2. using Unity.Collections;
3. using Unity.Entities;
4. using Unity.Mathematics;
5.  
6. public class ApplySystem : SystemBase
7. {
8.     protected override void OnUpdate()
9.     {
10.         Entities.ForEach((in TestComponent test) => { }).ScheduleParallel();
11.     }
12. }
13.  
14. public class GenericSystem<T> : SystemBase
15.     where T : struct, IComponentData
16. {
17.     [BurstCompile]
18.     private struct GenericJob : IJobChunk
19.     {
20.         [ReadOnly] public ComponentTypeHandle<T> GenericType;
21.  
22.         public void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex)
23.         {
24.             NativeArray<T> generics = chunk.GetNativeArray(GenericType);
25.         }
26.     }
27.  
28.     private EntityQuery Query;
29.  
30.     protected override void OnCreate()
31.     {
32.         EntityManager.CreateEntity(ComponentType.ReadOnly<T>());
33.         Query = GetEntityQuery(ComponentType.ReadOnly<T>());
34.     }
35.  
36.     protected override void OnUpdate()
37.     {
38.         GenericJob job = new GenericJob
39.         {
40.             GenericType = GetComponentTypeHandle<T>(true),
41.         };
42.  
43.         job.Run(Query);
44.     }
45. }
46.  
47. public class TestSystem : GenericSystem<TestComponent> {}
48.  
49. public struct TestComponent : IComponentData
50. {
51.     public float3 Value;
52. }

I'm using Unity 2020.1.12f1 and Tiny 0.31.0. This exception only happened in builds. I didn't know where the log of windows builds is, but it crashed.