1 error[E0599]: no method named `f` found for unit type `()` in the current scope
2 --> $DIR/trait_items.rs:17:24
5 | - the method is available for `()` here
7 LL | fn f() { ::baz::m!(); }
8 | ----------- in this macro invocation
10 LL | pub macro m() { ().f() }
11 | ^ method not found in `()`
13 = help: items from traits can only be used if the trait is in scope
14 = note: this error originates in the macro `::baz::m` (in Nightly builds, run with -Z macro-backtrace for more info)
15 help: the following trait is implemented but not in scope; perhaps add a `use` for it:
20 error: aborting due to previous error
22 For more information about this error, try `rustc --explain E0599`.