error: there is no argument named `x` --> $DIR/format-args-capture-from-pm-first-arg-macro.rs:6:5 | LL | format_string_proc_macro::bad_format_args_captures!(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: did you intend to capture a variable `x` from the surrounding scope? = note: to avoid ambiguity, `format_args!` cannot capture variables when the format string is expanded from a macro = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error