Hello, I'm new to Nim and I'm learning it by making some little apps, reading Nim in Action and so on. During my exploration I found that with higher verbosity level the compiler complains my code on GC-safety with a warning like Warning: not GC-safe: 'foo()' [GcUnsafe]. I've tried to look up this in the manual or document but got no luck.
Sorry I didn't provide a minimal working example here, because I wasted some time trying but failed, so I'm not expecting any concrete advice on how to modify the code. Rather, I'd appreciate a general guide about how to find more infomation on the warning. My program runs in single thread.
Thank you all in advance. If I managed to get a minimal example working I'd update this post.