Lol ok, I found the issue, it was a math bug on my end. Nothing to do on your end (short of having so many mods that my small issue blew up).
Basically, I make a dummy surface and spawn a 10x10 block of entities, I was adding in the total number of entities instead of 10 at one point, so was making in the end an 8k x 8k, when the max should be around 1k x 1k in your case. I fixed the issue and I can get past that point in the code with Factorio hitting maxing around 5GB of RAM.
Though the report is failing due to a few of your mods. They are expecting a player to have build the entities, and since it's not in this case it's failing. I saw atleast cargo ships and some LTN mod were failing.
I'm going to have a new version out in a bit with a fix to my calculation.