On: Effective Rust (2021)

[TazeTSchnitzel]

This is really weird code because `print!` in Rust always takes a format string (similar to C's printf but as a macro), but I don't see one here. So it's not just a single-character typo.

[dan-robertson → TazeTSchnitzel]

If you read the text, which has since been fixed, it appears that the example output was incorrect and a print_page function was intended.