//@ revisions: e2021 e2024 //@ [e2021] edition:2021 //@ [e2024] compile-flags: --edition 2024 -Z unstable-options fn main() { static mut X: i32 = 1; let _x = &X; //[e2024]~^ creating a shared reference to a mutable static [E0796] //[e2021]~^^ use of mutable static is unsafe and requires unsafe function or block [E0133] //[e2021]~^^^ shared reference to mutable static is discouraged [static_mut_refs] }