these 2 derivations will be built:
  /nix/store/212ib2facw9c7hbapglbhi8306x0s178-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/jv5s0y2nrid81d7a0pfk696b9n4lhfkk-vm-test-run-wrappers-regression-PSQL-1387.drv