these 4 derivations will be built:
  /nix/store/z38nbvnsq7hgjxsyv6nisc1mdfk8jsib-test-script.drv
  /nix/store/qzb9wpm0gjjy6n0y5925wj2fa14wcxy6-driverConfiguration.json.drv
  /nix/store/4j5v38cn75xga7qs1ip3g8vd1l8n1f4g-nixos-test-driver-pg_graphql.drv
  /nix/store/8snb1fjz6zr6ghi95h1gcxdg5073x1ca-vm-test-run-pg_graphql.drv