Hi, I've run into the same problem and found out it does not occur when I run it as an executable file (relative or abs. path works). Never seen anything like it and I don't know if I care enough to dig deeper into this issue (there are more problems with racket pkg in guix than this unfortunately) but someone might find it interesting... user@mypc ~# racket free(): invalid pointer Aborted
user@mypc ~$ which racket /run/current-system/profile/bin/racket user@mypc ~$ /run/current-system/profile/bin/racket Welcome to Racket v8.8 [cs]. > Cheers, George