refactor: factor out metadata_builder from scanner
#1158
| Job | Run time |
|---|---|
| 1m 4s | |
| 4m 21s | |
| 5m 22s | |
| 16m 19s | |
| 7m 48s | |
| 3m 30s | |
| 3m 35s | |
| 3m 16s | |
| 5m 11s | |
| 1m 43s | |
| 4m 15s | |
| 5m 22s | |
| 3m 52s | |
| 4m 36s | |
| 5m 59s | |
| 2m 25s | |
| 9m 36s | |
| 14m 7s | |
| 2m 26s | |
| 4m 47s | |
| 1m 53s | |
| 6m 53s | |
| 2m 0s | |
| 2m 30s | |
| 1m 21s | |
| 5m 1s | |
| 2m 37s | |
| 3m 25s | |
| 1m 36s | |
| 4m 27s | |
| 1m 55s | |
| 4m 53s | |
| 2m 20s | |
| 6m 35s | |
| 1m 24s | |
| 6m 24s | |
| 1m 49s | |
| 7m 15s | |
| 3m 52s | |
| 3m 0s | |
| 4m 25s | |
| 4m 44s | |
| 5m 3s | |
| 3m 56s | |
| 3m 21s | |
| 5m 21s | |
| 4m 10s | |
| 3m 29s | |
| 5m 11s | |
| 5m 50s | |
| 4m 22s | |
| 3m 16s | |
| 2m 7s | |
| 3m 59s | |
| 4m 30s | |
| 5m 54s | |
| 5m 1s | |
| 4m 42s | |
| 4h 20m 5s |