error[E0502]: cannot borrow `t0` as mutable because it is also borrowed as immutable --> $DIR/borrowck-swap-mut-base-ptr.rs:13:10 | LL | let p: &isize = &*t0; // Freezes `*t0` | ---- immutable borrow occurs here LL | swap(&mut t0, &mut t1); | ^^^^^^^ mutable borrow occurs here LL | *t1 = 22; LL | p.use_ref(); | - immutable borrow later used here error: aborting due to previous error For more information about this error, try `rustc --explain E0502`.