1 error[E0389]: cannot borrow data mutably in a `&` reference
2 --> $DIR/issue-42344.rs:4:5
4 LL | TAB[0].iter_mut(); //~ ERROR cannot borrow data mutably in a `&` reference [E0389]
5 | ^^^^^^ assignment into an immutable reference
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0389`.