error[E0308]: mismatched types --> $DIR/issue-48364.rs:2:21 | LL | b"".starts_with(stringify!(foo)) | ^^^^^^^^^^^^^^^ expected slice `[u8]`, found `str` | = note: expected reference `&[u8]` found reference `&'static str` = note: this error originates in the macro `stringify` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.