stream: avoid draining merged iter sources #8999
| Job | Run time |
|---|---|
| 1m 17s | |
| 22s | |
| 43m 58s | |
| 31m 40s | |
| 27m 45s | |
| 26m 7s | |
| 26m 26s | |
| 27m 1s | |
| 26m 2s | |
| 27m 0s | |
| 26m 10s | |
| 4h 23m 48s |
| Job | Run time |
|---|---|
| 1m 17s | |
| 22s | |
| 43m 58s | |
| 31m 40s | |
| 27m 45s | |
| 26m 7s | |
| 26m 26s | |
| 27m 1s | |
| 26m 2s | |
| 27m 0s | |
| 26m 10s | |
| 4h 23m 48s |