Allow Error::raw_os_error to return non-i32 codes
#1715
| Job | Run time |
|---|---|
| 40s | |
| 4m 32s | |
| 52s | |
| 6m 3s | |
| 42s | |
| 19s | |
| 3m 30s | |
| 15s | |
| 2m 12s | |
| 33s | |
| 17s | |
| 20s | |
| 1m 19s | |
| 19s | |
| 41s | |
| 24s | |
| 1m 26s | |
| 45s | |
| 1m 44s | |
| 24s | |
| 30s | |
| 56s | |
| 49s | |
| 39s | |
| 49s | |
| 14s | |
| 31m 14s |