1 error[E0502]: cannot borrow `vec` as mutable because it is also borrowed as immutable
2 --> $DIR/two-phase-cannot-nest-mut-self-calls.rs:14:9
5 | - --- immutable borrow later used by call
10 | | ^^^^^^^^^^^ mutable borrow occurs here
15 | |______- immutable borrow occurs here
17 error: aborting due to previous error
19 For more information about this error, try `rustc --explain E0502`.