these 2 derivations will be built:
  /nix/store/i6506j1lr3yjdcraky793rawnkz45m5d-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/c39dj2x578iyvs46bb2yciiys6v4hjyk-vm-test-run-wrappers-regression-PSQL-1387.drv