Add some locking about stdout to avoid some false positives in TSAN #1240
| Job | Run time |
|---|---|
| 11s | |
| 14s | |
| 17m 50s | |
| 44m 30s | |
| 16m 55s | |
| 44m 9s | |
| 16m 44s | |
| 43m 36s | |
| 16m 47s | |
| 44m 51s | |
| 16m 55s | |
| 46m 49s | |
| 7m 48s | |
| 8m 14s | |
| 7m 57s | |
| 8m 13s | |
| 8m 1s | |
| 8m 14s | |
| 7m 57s | |
| 9m 16s | |
| 8m 0s | |
| 8m 57s | |
| 8m 44s | |
| 11m 43s | |
| 11m 34s | |
| 8m 31s | |
| 11m 28s | |
| 0s | |
| 7h 24m 8s |