Static struct with hashmap mut issue

help
2

Oh sorry, the solution is similar to a previous question I posted and it was already solved by @alice. Here is one possible solution:

use std::collections::HashMap;
use nalgebra::Point3;

pub struct Shell {
    pub points: Option<HashMap<Point3<u16>, bool>>,
}

static mut STATIC_SHELL:Shell = Shell {
        points: None,
};

fn main() {

    unsafe {
        STATIC_SHELL.points = Some(HashMap::new());
        if let Some(points) = &mut STATIC_SHELL.points {
            points.insert(Point3::new(1,2,3), true);
            println!("{:?}", points);
        }   
    }
}