I have been playing around with the playpen and discovered that I could issue commands from rust with Command like ls to look around the system and then cat some config files, etc.
Here is a Playpen link where you can find some examples.
So I just wanted to make sure that this is the intended behaviour and not some security issue.
I now know that the server runs Arch Linux with an Intel® Xeon® CPU E5-2670 v2 @ 2.50GHz and is running perl 5, version 20, subversion 2 (v5.20.2)
Yeah I figured it was sandboxed because I could create new files in the working directory but they would get removed after the program exited. But better be safe than sorry