these 4 derivations will be built:
  /nix/store/bxdhgp2y2vqndr73sjgsczr0fb16nlwy-test-script.drv
  /nix/store/kmq42w6ackwi5r1qh5jbc40ck56ljkj0-driverConfiguration.json.drv
  /nix/store/amw5p8crq3hwkqp34bn39p9zl4hklb1b-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/l09vh9chjjvaxdki54bhkg5x9zazwc2i-vm-test-run-wrappers-regression-PSQL-1387.drv