error: unknown character escape: { --> $DIR/wrong-escape-of-curly-braces.rs:3:17 | LL | let bad = "\{it is wrong\}"; | ^ unknown character escape | = help: if used in a formatting string, curly braces are escaped with `{{` and `}}` error: unknown character escape: } --> $DIR/wrong-escape-of-curly-braces.rs:3:30 | LL | let bad = "\{it is wrong\}"; | ^ unknown character escape | = help: if used in a formatting string, curly braces are escaped with `{{` and `}}` error: aborting due to 2 previous errors