these 4 derivations will be built:
  /nix/store/y7hiampj8nbpl8arwj3i61z5p2zdfzsn-test-script.drv
  /nix/store/x398q5fg7myan8wzg99xjxfahxqhnjk0-driverConfiguration.json.drv
  /nix/store/7ld7zx8hgbsar9mqbp2qajfwqqbzsgix-nixos-test-driver-pg_graphql.drv
  /nix/store/36svj52jnxbhgqnn5aj8q6blzsd9fhd7-vm-test-run-pg_graphql.drv