warning: creating a shared reference to mutable static is discouraged --> $DIR/issue-15261.rs:9:37 | LL | static n: &'static usize = unsafe { &n_mut }; | ^^^^^^ shared reference to mutable static | = note: for more information, see = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives = note: `#[warn(static_mut_refs)]` on by default help: use `&raw const` instead to create a raw pointer | LL | static n: &'static usize = unsafe { &raw const n_mut }; | ~~~~~~~~~~ warning: 1 warning emitted