these 2 derivations will be built:
  /nix/store/ldil4im5xdcypkrynbm312n0spc00dh6-nixos-test-driver-index_advisor.drv
  /nix/store/bgqh1bywj6zp82r7zfncdcrvraa5vszi-vm-test-run-index_advisor.drv