Fix handling for poll calls to non-generator futures
#670
| Job | Run time |
|---|---|
| 1m 9s | |
| 1m 16s | |
| 2m 13s | |
| 1m 53s | |
| 6m 31s |
poll calls to non-generator futures
#670
| Job | Run time |
|---|---|
| 1m 9s | |
| 1m 16s | |
| 2m 13s | |
| 1m 53s | |
| 6m 31s |