do a little bit of work to try confirm that the git repo found is actually a julia repo before running Core.Compiler test
#483
| Job | Run time |
|---|---|
| 7m 50s | |
| 27m 8s | |
| 13m 42s | |
| 11m 9s | |
| 29m 11s | |
| 10m 24s | |
| 10m 21s | |
| 29m 9s | |
| 16m 52s | |
| 13m 45s | |
| 31m 52s | |
| 18m 22s | |
| 18m 17s | |
| 3h 58m 2s |