singletons-{th,base}: Require building with GHC 9.12
#376
| Job | Run time |
|---|---|
| 10m 31s | |
| 2m 33s | |
| 2m 24s | |
| 2m 34s | |
| 2m 5s | |
| 1m 51s | |
| 1m 54s | |
| 1m 50s | |
| 1m 44s | |
| 1m 49s | |
| 1m 47s | |
| 2m 17s | |
| 2m 20s | |
| 35m 39s |