System Information
Operating system: Windows 10 Home 1903
Graphics card: Intel UHD 630

Blender Version
Broken: version: 2.81 (sub 14), branch: master, commit date: 2019-10-05 20:51, hash: 4707f1982ddb, type: Release
build date: 2019-10-05, 23:02:10
platform: Windows

Short description of error
if you delete the rigid body object (with baked rigid body cache) and then hit spacebar to play animation, blender crashes.

Exact steps for others to reproduce the error
1- Open Blender
2- Select the default cube
3- Add Rigid body to default cube
4- Bake the cache (scene properties->rigid body World->cache)
5- Delete the cube from outliner
6- Press space
7- Blender crashes.

or open the blend file

1- Delete the bake (scene properties->rigid body World->cache)
2- Bake the cache
3- Delete the cube from outliner
4- Press space
5- Blender crashes.