It looks like a compiler error is only shown on stable-aarch64-apple-darwin. Please see the related Rustlings issue.
I have no idea how to debug it since the Apple CI doesn't return the error.
From the issue history, it sounds like you haven't yet confirmed whether this is “fails on aarch64-apple-darwin specifically” or “fails on the original reporter's config specifically”. The next step should be to have someone else with that target (not me, unfortunately) run the same code — not in CI because CI can have its own quirks.
2 Likes
This topic was automatically closed 90 days after the last reply. We invite you to open a new topic if you have further questions or comments.