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error[E0505]: cannot move out of `t0` because it is borrowed
  --> $DIR/borrowck-move-mut-base-ptr.rs:10:14
   |
LL | fn foo(t0: &mut isize) {
   |        -- binding `t0` declared here
LL |     let p: &isize = &*t0; // Freezes `*t0`
   |                     ---- borrow of `*t0` occurs here
LL |     let t1 = t0;
   |              ^^ move out of `t0` occurs here
LL |     *t1 = 22;
LL |     p.use_ref();
   |     - borrow later used here
   |
help: consider cloning the value if the performance cost is acceptable
   |
LL -     let p: &isize = &*t0; // Freezes `*t0`
LL +     let p: &isize = &t0.clone(); // Freezes `*t0`
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0505`.