these 3 derivations will be built:
  /nix/store/brnf04xswqjkvs0zx7dpbf05y1pyr0a9-dry-activate.drv
  /nix/store/s5bfn82spj7fjvh3xrwnlnpspqw0d0qg-activate.drv
  /nix/store/vixjjbcnzixg59nafqklkgxkm18bbgq2-nixos-system-zaphod-26.11.19800101.a831408.drv