rust/tests/ui/issues/issue-54410.rs

extern "C" {
    pub static mut symbol: [i8];
    //~^ ERROR the size for values of type `[i8]` cannot be known at compilation time
}

fn main() {
    println!("{:p}", unsafe { &symbol });
    //~^ WARN creating a shared reference to mutable static is discouraged [static_mut_refs]
}