error[E0277]: the size for values of type `[i8]` cannot be known at compilation time --> $DIR/issue-54410.rs:2:28 | LL | pub static mut symbol: [i8]; | ^^^^ doesn't have a size known at compile-time | = help: the trait `Sized` is not implemented for `[i8]` warning: creating a shared reference to mutable static is discouraged --> $DIR/issue-54410.rs:7:31 | LL | println!("{:p}", unsafe { &symbol }); | ^^^^^^^ shared reference to mutable static | = note: for more information, see issue #114447 = note: this will be a hard error in the 2024 edition = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior = note: `#[warn(static_mut_refs)]` on by default help: use `addr_of!` instead to create a raw pointer | LL | println!("{:p}", unsafe { addr_of!(symbol) }); | ~~~~~~~~~ + error: aborting due to 1 previous error; 1 warning emitted For more information about this error, try `rustc --explain E0277`.