21a0e86234
migration lint for `expr2024` for the edition 2024 This is adding a migration lint for the current (in the 2021 edition and previous) to move expr to expr_2021 from expr Issue https://github.com/rust-lang/rust/issues/123742 I created also a repository to test out the migration https://github.com/vincenzopalazzo/expr2024-cargo-fix-migration Co-Developed-by: ``@eholk``