error[E0599]: no function or associated item named `is_std_box_type` found for struct `CheckIfTypeIsStd<Box<String>>` in the current scope
--> src/fail_tests/refuse_non_std_box.rs:19:1
|
19 | #[self_referencing]
| ^^^^^^^^^^^^^^^^^^^ function or associated item not found in `CheckIfTypeIsStd<Box<String>>`
|
= note: the function or associated item was found for
- `CheckIfTypeIsStd<std::boxed::Box<T>>`
= note: this error originates in the attribute macro `self_referencing` (in Nightly builds, run with -Z macro-backtrace for more info)