these 2 derivations will be built:
  /nix/store/9zr5lhqg8z3ix5yf9ljsjx1ya02ry39c-nixos-test-driver-pgjwt.drv
  /nix/store/84iz5c176q78s1nsr1zp0mv5xmv33f0s-vm-test-run-pgjwt.drv