these 2 derivations will be built:
  /nix/store/0l9x03iykvsh9crn6gcj4cw98zp03mgp-nixos-test-driver-pgsodium.drv
  /nix/store/4a15q8ivf229403scg2d4m03967gj0c5-vm-test-run-pgsodium.drv