|  | error: there is no argument named `foo` | 
|  | --> $DIR/format-args-capture-macro-hygiene.rs:15:13 | 
|  | | | 
|  | LL |     format!(concat!("{foo}")); | 
|  | |             ^^^^^^^^^^^^^^^^ | 
|  | | | 
|  | = note: did you intend to capture a variable `foo` from the surrounding scope? | 
|  | = note: to avoid ambiguity, `format_args!` cannot capture variables when the format string is expanded from a macro | 
|  |  | 
|  | error: there is no argument named `bar` | 
|  | --> $DIR/format-args-capture-macro-hygiene.rs:16:13 | 
|  | | | 
|  | LL |     format!(concat!("{ba", "r} {}"), 1); | 
|  | |             ^^^^^^^^^^^^^^^^^^^^^^^ | 
|  | | | 
|  | = note: did you intend to capture a variable `bar` from the surrounding scope? | 
|  | = note: to avoid ambiguity, `format_args!` cannot capture variables when the format string is expanded from a macro | 
|  |  | 
|  | error: there is no argument named `foo` | 
|  | --> $DIR/format-args-capture-macro-hygiene.rs:7:13 | 
|  | | | 
|  | LL |     () => { "{foo}" } | 
|  | |             ^^^^^^^ | 
|  | ... | 
|  | LL |     format!(def_site!()); | 
|  | |             ----------- in this macro invocation | 
|  | | | 
|  | = note: did you intend to capture a variable `foo` 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 `def_site` (in Nightly builds, run with -Z macro-backtrace for more info) | 
|  |  | 
|  | error: there is no argument named `foo` | 
|  | --> $DIR/format-args-capture-macro-hygiene.rs:19:24 | 
|  | | | 
|  | LL |     format!(call_site!("{foo}")); | 
|  | |                        ^^^^^^^ | 
|  | | | 
|  | = note: did you intend to capture a variable `foo` from the surrounding scope? | 
|  | = note: to avoid ambiguity, `format_args!` cannot capture variables when the format string is expanded from a macro | 
|  |  | 
|  | error: there is no argument named `foo` | 
|  | --> $DIR/format-args-capture-macro-hygiene.rs:21:34 | 
|  | | | 
|  | LL |     format!(foo_with_input_span!("")); | 
|  | |                                  ^^ | 
|  | | | 
|  | = note: did you intend to capture a variable `foo` from the surrounding scope? | 
|  | = note: to avoid ambiguity, `format_args!` cannot capture variables when the format string is expanded from a macro | 
|  |  | 
|  | error: aborting due to 5 previous errors | 
|  |  |