error[E0596]: cannot borrow `*TAB[_]` as mutable, as `TAB` is an immutable static item --> $DIR/issue-42344.rs:4:5 | LL | TAB[0].iter_mut(); | ^^^^^^ cannot borrow as mutable error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0596`.