error[E0502]: cannot borrow `mat` as mutable because it is also borrowed as immutable
--> tests/compile-fail/multi/matref_get_row.rs:16:13
|
12 | let view: MatRef<'_, Standard<f32>> = mat.as_view();
| --- immutable borrow occurs here
...
16 | let _ = mat.as_view_mut();
| ^^^^^^^^^^^^^^^^^ mutable borrow occurs here
17 | assert_eq!(row[0], 0.0);
| ------ immutable borrow later used here