Chapter 5.3 - Reads and Writes with &self and &mut self : rect do not lose Read permission

[dhmoclex]

URL to the section(s) of the book with this problem:
https://rust-book.cs.brown.edu/ch05-03-method-syntax.html#reads-and-writes-with-self-and-mut-self

Description of the problem:
On the last memory diagram (Added the mut keyword to the let-binding), rect do not lose Read permission.

For instance this program is valid :

struct Rectangle {
    width: u32,
    height: u32,
}
impl Rectangle {
    fn set_width(&mut self, width: u32) {
        self.width = width;
    }
}
fn main() {
    // Added the mut keyword to the let-binding
    let mut rect = Rectangle {
        width: 0,
        height: 0,
    };
    rect.set_width(1); // this is now ok

    let rect_ref = ▭
    println!("{} {}", rect.width, rect.height);
    println!("{} {}", rect_ref.width, rect_ref.height);
}

Suggested fix:
Do not strike Read permission for rect, rect.width and rect.height.