these 2 derivations will be built:
  /nix/store/n2nvi7fwkklp0jkkg43p3yjaqwixfplp-nixos-test-driver-index_advisor.drv
  /nix/store/k26q4rw0fngi15i7iixm7n9q2qsdq282-vm-test-run-index_advisor.drv