Fix missing as_ref calls for trait impls
#540
| Job | Run time |
|---|---|
| 1m 22s | |
| 0s | |
| 1m 22s |
as_ref calls for trait impls
#540
| Job | Run time |
|---|---|
| 1m 22s | |
| 0s | |
| 1m 22s |