Slice issue with ECS raycasting

Trying out raycasting with ECS, Entites 0.1.1, Unity 2019.3.0b7. Probably a silly mistake on my part,

The code works when not done within a job (ComponentSystem w/ Entities.ForEach), but when in a job I get a sea of this stack trace:

Code (CSharp):

1. ArgumentException: Slice start + length (4) range must be <= array.Length (0)
2. Unity.Collections.NativeSlice`1[T]..ctor (Unity.Collections.NativeArray`1[T] array, System.Int32 start, System.Int32 length) (at <5e35e4589c1948aa8af5b8e64eea8798>:0)
3. Unity.Physics.CollisionWorld.get_Bodies () (at Library/PackageCache/com.unity.physics@0.2.4-preview/Unity.Physics/Collision/World/CollisionWorld.cs:19)
4. Unity.Physics.PhysicsWorld.get_StaticBodies () (at Library/PackageCache/com.unity.physics@0.2.4-preview/Unity.Physics/Dynamics/World/PhysicsWorld.cs:20)
5. Unity.Physics.Systems.BuildPhysicsWorld.OnUpdate (Unity.Jobs.JobHandle inputDeps) (at Library/PackageCache/com.unity.physics@0.2.4-preview/Unity.Physics/ECS/Systems/BuildPhysicsWorld.cs:152)
6. Unity.Entities.JobComponentSystem.InternalUpdate () (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:933)
7. Unity.Entities.ComponentSystemBase.Update () (at Library/PackageCache/com.unity.entities@0.1.1-preview/Unity.Entities/ComponentSystem.cs:284)
8. Halloween.Prototyping.FixedUpdate () (at Assets/Scripts/Level/Prototyping.cs:41)
9.  

The source:

Code (CSharp):

1. public class PlayerGroundedSystem : JobComponentSystem
2.     {
3.         struct PlayerGroundedJob : IJobForEach<PlayerGroundedData>
4.         {
5.             public CollisionWorld CWorld;
6.             public void Execute(ref PlayerGroundedData data)
7.             {
8.                 RaycastInput rci = new RaycastInput
9.                 {
10.                     Start = new float3(30, 0, 30),
11.                     End = new float3(60, 0, 60),
12.                     Filter = CollisionFilter.Default,
13.                 };
14.  
15.                 data.Grounded = CWorld.CastRay(rci);
16.             }
17.         }
18.         protected override JobHandle OnUpdate(JobHandle inputDeps)
19.         {
20.             BuildPhysicsWorld pWorld = World.Active.GetExistingSystem<BuildPhysicsWorld>();
21.             CollisionWorld collisionWorld = pWorld.PhysicsWorld.CollisionWorld;
22.             PlayerGroundedJob job = new PlayerGroundedJob
23.             {
24.                 CWorld = collisionWorld,
25.             };
26.             return job.Schedule(this, inputDeps);
27.         }
28.     }

I took this from https://docs.unity3d.com/Packages/com.unity.physics@0.0/manual/collision_queries.html, for reference.

 

Scratch that, solved ( :

Code (CSharp):

1.             JobHandle combined = JobHandle.CombineDependencies(inputDeps, buildPhysicsWorld.FinalJobHandle);
2.             JobHandle handle = job.Schedule(this, combined);