Fix cannot infer type error when there's empty config
#265
| Job | Run time |
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| 17s | |
| 41s | |
| 5s | |
| 3m 43s | |
| 3m 27s | |
| 1m 22s | |
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| 1m 50s | |
| 2m 26s | |
| 3m 7s | |
| 5m 6s | |
| 1m 51s | |
| 3m 37s | |
| 1m 44s | |
| 1m 48s | |
| 1m 37s | |
| 1m 36s | |
| 1m 24s | |
| 1m 34s | |
| 1m 47s | |
| 3m 28s | |
| 1m 36s | |
| 1m 25s | |
| 3m 9s | |
| 1m 49s | |
| 2m 36s | |
| 1m 49s | |
| 2m 55s | |
| 3m 21s | |
| 1m 47s | |
| 3m 34s | |
| 3m 11s | |
| 1m 37s | |
| 2m 29s | |
| 5m 16s | |
| 1m 33s | |
| 1m 50s | |
| 3m 19s | |
| 1m 37s | |
| 2m 28s | |
| 1m 22s | |
| 2m 58s | |
| 6s | |
| 1h 50m 20s |