[chore] do not initialize empty slices #9542
| Job | Run time |
|---|---|
| 14m 23s | |
| 9m 40s | |
| 6m 49s | |
| 7m 21s | |
| 5m 14s | |
| 4m 58s | |
| 6m 24s | |
| 6m 17s | |
| 7m 32s | |
| 7m 39s | |
| 6m 20s | |
| 4m 32s | |
| 7m 0s | |
| 9m 1s | |
| 5m 6s | |
| 4m 53s | |
| 7m 17s | |
| 5m 14s | |
| 4m 30s | |
| 5m 31s | |
| 6m 21s | |
| 4m 38s | |
| 8m 29s | |
| 5m 33s | |
| 4m 33s | |
| 8m 49s | |
| 5m 11s | |
| 1s | |
| 2h 59m 16s |