Even printing can have some side effects on the code, by introducing some extra latency that might implicitly fix a race condition, if that’s the bug in question.
Not saying that it’s wrong, just funny to think about that race conditions are hard to debug with any kind of tool, either with debugger or printing.
I don't know why but I just can't keep myself from laughing at the name of McPlant.
(I do think plant based meat is a great thing though, it's just a hilarious name.)