error[E0499]: cannot borrow `v` as mutable more than once at a time | |
--> $DIR/borrowck-vec-pattern-loan-from-mut.rs:8:13 | |
| | |
LL | let vb: &mut [isize] = &mut v; | |
| ------ first mutable borrow occurs here | |
... | |
LL | v.push(tail[0] + tail[1]); | |
| ^ ------- first borrow later used here | |
| | | |
| second mutable borrow occurs here | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0499`. |