Fix possible memory leaks in backend #1204
| Job | Run time |
|---|---|
| 4m 32s | |
| 5m 42s | |
| 4m 4s | |
| 5m 3s | |
| 4m 24s | |
| 5m 54s | |
| 5m 5s | |
| 4m 29s | |
| 5m 52s | |
| 4m 39s | |
| 2m 25s | |
| 2m 16s | |
| 2m 21s | |
| 1m 53s | |
| 1m 44s | |
| 2m 57s | |
| 3m 59s | |
| 3m 19s | |
| 2m 43s | |
| 3m 15s | |
| 1h 16m 36s |
| Job | Run time |
|---|---|
| 4m 32s | |
| 5m 42s | |
| 4m 4s | |
| 5m 3s | |
| 4m 24s | |
| 5m 54s | |
| 5m 5s | |
| 4m 29s | |
| 5m 52s | |
| 4m 39s | |
| 2m 25s | |
| 2m 16s | |
| 2m 21s | |
| 1m 53s | |
| 1m 44s | |
| 2m 57s | |
| 3m 59s | |
| 3m 19s | |
| 2m 43s | |
| 3m 15s | |
| 1h 16m 36s |