error[E0308]: mismatched types --> $DIR/issue-48364.rs:2:21 | LL | b"".starts_with(stringify!(foo)) | ----------- ^^^^^^^^^^^^^^^ expected `&[u8]`, found `&str` | | | arguments to this method are incorrect | = note: expected reference `&[u8]` found reference `&'static str` note: method defined here --> $SRC_DIR/core/src/slice/mod.rs:LL:COL error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0308`.