channel: Create list::Block directly on the heap
#3028
| Job | Run time |
|---|---|
| 16s | |
| 1m 0s | |
| 7m 40s | |
| 23s | |
| 7m 33s | |
| 18s | |
| 4m 49s | |
| 7m 40s | |
| 31s | |
| 7m 15s | |
| 13s | |
| 7m 40s | |
| 49s | |
| 7m 33s | |
| 7m 40s | |
| 7m 40s | |
| 4s | |
| 7m 39s | |
| 7m 41s | |
| 7m 40s | |
| 10s | |
| 1h 32m 14s |