these 2 derivations will be built:
  /nix/store/rrkz689vxhpgcyqzp6q3a1rvqyy2pph7-nixos-test-driver-pgsodium.drv
  /nix/store/2v4kvb867syfrsgdhal1m27grqfmsrwq-vm-test-run-pgsodium.drv