these 2 derivations will be built:
  /nix/store/as5pm5zb6bcc4i4xz0q0p4yxjdd1nf88-nixos-test-driver-wrappers-regression-PSQL-1387.drv
  /nix/store/rsajh1mi2ynhgvgjpjp7blf1q5igfn0k-vm-test-run-wrappers-regression-PSQL-1387.drv