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ecb9775438
`rc""` more clear error message here is small fix that provides better error message when user is trying to use `rc""` the same way it was made for `rb""` example of it's work ```rust | 2 | rc"\n"; | ^^ unknown prefix | = note: prefixed identifiers and literals are reserved since Rust 2021 help: use `cr` for a raw C-string | 2 - rc"\n"; 2 + cr"\n"; | ``` **related issue** fixes #140170 cc `@cyrgani` (issue author)