these 2 derivations will be built:
  /nix/store/yii0kz0cf71gysccv2nn79his9q53kr5-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/5w4d98i5cjz85v27i9kx9pmzhl3xpsiw-vm-test-run-wrappers-regression-PSQL-1387.drv