unstable: fix Pattern trait implementation
#2468
| Job | Run time |
|---|---|
| 12s | |
| 15m 8s | |
| 3m 43s | |
| 1m 42s | |
| 2m 45s | |
| 3m 56s | |
| 7m 53s | |
| 8m 51s | |
| 9m 36s | |
| 34s | |
| 3m 50s | |
| 2m 0s | |
| 2m 58s | |
| 2m 21s | |
| 5m 34s | |
| 3m 20s | |
| 1h 14m 23s |