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
   = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info)

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
   = note: this error originates in the macro `concat` (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: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