error[E0502]: cannot borrow `v` as mutable because it is also borrowed as immutable | |
--> $DIR/borrowck-loan-blocks-mut-uniq.rs:10:12 | |
| | |
LL | borrow(&*v, | |
| ------ --- immutable borrow occurs here | |
| | | |
| immutable borrow later used by call | |
LL | |w| { | |
| ^^^ mutable borrow occurs here | |
LL | v = box 4; | |
| - second borrow occurs due to use of `v` in closure | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0502`. |