error: invalid format string: expected `'}'` but string was terminated --> $DIR/respanned-literal-issue-106191.rs:6:65 | LL | format_string_proc_macro::respan_to_invalid_format_literal!("¡"); | ^^^ expected `'}'` in format string | = note: if you intended to print `{`, you can escape it using `{{` error: invalid format string: expected `'}'` but string was terminated --> $DIR/respanned-literal-issue-106191.rs:8:18 | LL | format_args!(r#concat!("¡ {")); | ^^^^^^^^^^^^^^^^^^^^^^^ expected `'}'` in format string | = note: if you intended to print `{`, you can escape it using `{{` = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 2 previous errors