these 3 derivations will be built:
  /nix/store/n5bszbpzbmv6kni2khrs0z459hfn0vm2-clan-cli-source.drv
  /nix/store/shd6mchb0marf12h3jvxis20mp4rkzc0-clan-cli.drv
  /nix/store/psam093xma40b3f9bix10zgxwfljiz5y-nix-shell.drv