these 3 derivations will be built:
  /nix/store/58j515lscnqldi5wvqp426rig4m8ln8k-clan-cli-source.drv
  /nix/store/gds9qgixxv4z3pfs7jav1adjx38zmpqy-clan-cli.drv
  /nix/store/vq5dlgc60akj7zdhj2xb9sg66mcwvly4-nix-shell.drv