these 2 derivations will be built:
  /nix/store/k2h4gsljx4bhzjrb77kr6p73p7l3zp2c-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/5kq9lm8wx4arh25z8d81gyw5dqyks20a-vm-test-run-wrappers-regression-PSQL-1387.drv