By: Greg Pfeil <greg@technomadic.org>
Allow IFD in Nix CI There was a bug in Nix CI that caused it to ignore its `allow-import-from-derivation` setting, and a bug here that set it to false when it needed to be true. Both are now fixed.
| Time to Start | Worker time | Duration | Time to finish | Idle | |
| Config | 19s | 3s | 3s | 22s | 19s |
| Eval | 23s | 2m18s | 2m18s | 2m42s | 1s |
| Build | 2m34s | 13m08s | 2m35s | 5m10s | 0s |
| Suite | 19s | 15m30s | 4m50s | 5m10s | 20s |