error[E0502]: cannot borrow `view` as immutable because it is also borrowed as mutable
--> tests/compile-fail/multi/matmut_rows_mut.rs:15:13
|
13 | let iter = view.rows_mut();
| ---- mutable borrow occurs here
14 | // This should fail: we cannot use `view` while the mutable iterator is alive
15 | let _ = view.num_vectors();
| ^^^^ immutable borrow occurs here
16 | for row in iter {
| ---- mutable borrow later used here