Warnings promoted to errors
Summary
Details
Two existing lints are becoming hard errors in Rust 2021. These lints will remain warnings in older editions.
-
bare-trait-objects: The use of thedynkeyword to identify trait objects will be mandatory in Rust 2021. -
ellipsis-inclusive-range-patterns: The deprecated...syntax for inclusive range patterns is no longer accepted in Rust 2021. It has been superseded by..=, which is consistent with expressions.