fix(runtime): use Weak to break reference cycle
#850
| Job | Run time |
|---|---|
| 1m 35s | |
| 1m 38s | |
| 1m 37s | |
| 1m 38s | |
| 3m 46s | |
| 1m 41s | |
| 1m 30s | |
| 4m 13s | |
| 1m 33s | |
| 3m 44s | |
| 3m 58s | |
| 3m 22s | |
| 1m 38s | |
| 4m 1s | |
| 1m 40s | |
| 1m 41s | |
| 4m 14s | |
| 4m 11s | |
| 1m 39s | |
| 1m 23s | |
| 1m 39s | |
| 4m 55s | |
| 3m 47s | |
| 4m 12s | |
| 2m 51s | |
| 5m 8s | |
| 1m 32s | |
| 1m 26s | |
| 3m 50s | |
| 1m 24s | |
| 4m 4s | |
| 3m 13s | |
| 1m 40s | |
| 1m 34s | |
| 4m 11s | |
| 1m 23s | |
| 3m 34s | |
| 1m 37s | |
| 1m 44s | |
| 1m 45s | |
| 1m 39s | |
| 1m 37s | |
| 1h 49m 27s |