these 2 derivations will be built:
  /nix/store/nc1miig1sd6dd6w322nl77phsl2wb4is-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/wm3as91hmhrwxcqzwcabbvg5inbyvvvl-vm-test-run-wrappers-regression-PSQL-1387.drv