#[cfg] attribute is not handled properly on struct fields

[CohenArthur]

pub struct ReadDir {
    pub inner: i32,
    #[cfg(not(A))]
    pub end_of_stream: bool,
    #[cfg(A)]
    pub end_of_stream_but_different: bool,
}

fn main() {
    let _ = ReadDir {
        inner: 14,
        end_of_stream: false,
        end_of_stream_but_different: false,
    };
}

slightly modified version of an exemple from std 1.49. This code should error out in all cases as both cfg directives are contradictory, so at least one field should be nonexistent in the instantiation. rustc outputs the following with no particular cfg command line options:

error[E0560]: struct `ReadDir` has no field named `end_of_stream_but_different`
  --> test.rs:13:9
   |
13 |         end_of_stream_but_different: false,
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ReadDir` does not have this field
   |
   = note: all struct fields are already assigned

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0560`.

but gccrs compiles the file happily