Nested packed struct containing incomplete array declaration results in compilation failure due to non-present Debug impl

[rlee287]

example.h:

struct nested_struct {
  char *name;
  unsigned char more_data[];
} __attribute__((packed));

struct {
  struct nested_struct meow;
} cat;

After running bindgen -o example.rs example.h, we get

/* automatically generated by rust-bindgen 0.72.1 */

#[repr(C)]
#[derive(Default)]
pub struct __IncompleteArrayField<T>(::std::marker::PhantomData<T>, [T; 0]);
impl<T> __IncompleteArrayField<T> {
    #[inline]
    pub const fn new() -> Self {
        __IncompleteArrayField(::std::marker::PhantomData, [])
    }
    #[inline]
    pub fn as_ptr(&self) -> *const T {
        self as *const _ as *const T
    }
    #[inline]
    pub fn as_mut_ptr(&mut self) -> *mut T {
        self as *mut _ as *mut T
    }
    #[inline]
    pub unsafe fn as_slice(&self, len: usize) -> &[T] {
        ::std::slice::from_raw_parts(self.as_ptr(), len)
    }
    #[inline]
    pub unsafe fn as_mut_slice(&mut self, len: usize) -> &mut [T] {
        ::std::slice::from_raw_parts_mut(self.as_mut_ptr(), len)
    }
}
impl<T> ::std::fmt::Debug for __IncompleteArrayField<T> {
    fn fmt(&self, fmt: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
        fmt.write_str("__IncompleteArrayField")
    }
}
#[repr(C, packed)]
pub struct nested_struct {
    pub name: *mut ::std::os::raw::c_char,
    pub more_data: __IncompleteArrayField<::std::os::raw::c_uchar>,
}
#[allow(clippy::unnecessary_operation, clippy::identity_op)]
const _: () = {
    ["Size of nested_struct"][::std::mem::size_of::<nested_struct>() - 8usize];
    ["Alignment of nested_struct"][::std::mem::align_of::<nested_struct>() - 1usize];
    ["Offset of field: nested_struct::name"][::std::mem::offset_of!(nested_struct, name) - 0usize];
    ["Offset of field: nested_struct::more_data"]
        [::std::mem::offset_of!(nested_struct, more_data) - 8usize];
};
#[repr(C)]
#[derive(Debug)]
pub struct _bindgen_ty_1 {
    pub meow: nested_struct,
}
#[allow(clippy::unnecessary_operation, clippy::identity_op)]
const _: () = {
    ["Size of _bindgen_ty_1"][::std::mem::size_of::<_bindgen_ty_1>() - 8usize];
    ["Alignment of _bindgen_ty_1"][::std::mem::align_of::<_bindgen_ty_1>() - 1usize];
    ["Offset of field: _bindgen_ty_1::meow"][::std::mem::offset_of!(_bindgen_ty_1, meow) - 0usize];
};
unsafe extern "C" {
    pub static mut cat: _bindgen_ty_1;
}

Trying to compile example.rs with rustc --crate-type staticlib -A nonstandard_style example.rs produces

error[E0277]: `nested_struct` doesn't implement `Debug`
  --> example_manual.rs:49:5
   |
47 | #[derive(Debug)]
   |          ----- in this derive macro expansion
48 | pub struct _bindgen_ty_1 {
49 |     pub meow: nested_struct,
   |     ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Debug` is not implemented for `nested_struct`
   |
   = note: add `#[derive(Debug)]` to `nested_struct` or manually `impl Debug for nested_struct`
help: consider annotating `nested_struct` with `#[derive(Debug)]`
   |
34 + #[derive(Debug)]
35 | pub struct nested_struct {
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0277`.

It seems like the combination of the incomplete array field and the struct nesting results in a #[derive(Debug)] line being incorrectly generated for the anonymous struct even though nested_struct lacks it.

Tested with bindgen 0.72.1 and master (74a5f30 as of the time of writing) using Rust 1.93