these 3 derivations will be built:
  /nix/store/758g3il4flljrkgm9pq6qkb9h1j05csk-clan-cli-source.drv
  /nix/store/gwnn2ykzys8x8y9bz3iyc3y1a6wyyffc-clan-cli.drv
  /nix/store/jpww27lc5r8g4hjgh7jrb1slbv9r5wk8-nix-shell.drv