There seems to be a small spelling mistake in https://github.com/rust-lang/edition-guide/blob/master/src/rust-2021/or-patterns-macro-rules.md. In the section 'Migration to Rust 2021' `$:_pat` should probably be `$_:pat`.
There seems to be a small spelling mistake in https://github.com/rust-lang/edition-guide/blob/master/src/rust-2021/or-patterns-macro-rules.md.
In the section 'Migration to Rust 2021'
$:_patshould probably be$_:pat.