these 4 derivations will be built:
  /nix/store/0g5lmb08p4i446d8zg9y4yfy4jhi9a5a-clan-runtime.drv
  /nix/store/mlw2mcrk4yqckwv86dyn3r9qp58gf7p3-clan-cli-source.drv
  /nix/store/ph1pgih9d11z4ybd99ysg3zp6lwqf7vv-clan-cli.drv
  /nix/store/8il6b76yd90fbaqdz42gnkspq875pnrb-nix-shell.drv