fix(runtime): use Weak to break reference cycle (#490)
#851
| Job | Run time |
|---|---|
| 4m 3s | |
| 1m 38s | |
| 1m 40s | |
| 1m 36s | |
| 3m 28s | |
| 1m 37s | |
| 4m 40s | |
| 1m 35s | |
| 4m 9s | |
| 3m 52s | |
| 2m 24s | |
| 1m 18s | |
| 1m 45s | |
| 1m 37s | |
| 4m 21s | |
| 1m 38s | |
| 3m 32s | |
| 3m 47s | |
| 3m 56s | |
| 1m 35s | |
| 1m 46s | |
| 1m 37s | |
| 3m 38s | |
| 1m 37s | |
| 1m 36s | |
| 1m 37s | |
| 4m 20s | |
| 1m 40s | |
| 1m 31s | |
| 1m 26s | |
| 4m 57s | |
| 4m 2s | |
| 3m 56s | |
| 1m 40s | |
| 4m 24s | |
| 4m 19s | |
| 4m 0s | |
| 1m 40s | |
| 4m 19s | |
| 1m 40s | |
| 1m 14s | |
| 1m 54s | |
| 1h 53m 4s |