2.0.0 build failure - mismatched types

[0323pin]

Hi,

Trying to update our package (NetBSD) to 2.0.0 fails with:

   Compiling erdtree v2.0.0 (/usr/pkgsrc/wip/erdtree/work/erdtree-2.0.0)
warning: unused import: `ptr`
 --> src/fs/xattr.rs:2:48
  |
2 | use std::{os::unix::ffi::OsStrExt, path::Path, ptr};
  |                                                ^^^
  |
  = note: `#[warn(unused_imports)]` on by default

warning: unused import: `listxattr`
  --> src/fs/xattr.rs:25:24
   |
25 |     use libc::{c_char, listxattr};
   |                        ^^^^^^^^^

error[E0308]: mismatched types
  --> src/fs/xattr.rs:24:38
   |
24 | unsafe fn has_xattrs(path: &Path) -> bool {
   |           ----------                 ^^^^ expected `bool`, found `()`
   |           |
   |           implicitly returns `()` as its body has no tail or `return` expression

For more information about this error, try `rustc --explain E0308`.
warning: `erdtree` (bin "erd") generated 2 warnings
error: could not compile `erdtree` due to previous error; 2 warnings emitted
*** Error code 101

Stop.

OS: NetBSD-current (development branch)
Rust: 1.69.0