error[E0502]: cannot borrow `vec` as mutable because it is also borrowed as immutable --> $DIR/two-phase-reservation-sharing-interference.rs:32:17 | LL | let shared = &vec; | ---- immutable borrow occurs here ... LL | delay = &mut vec; | ^^^^^^^^ mutable borrow occurs here ... LL | shared[0]; | ------ immutable borrow later used here error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0502`.