these 3 derivations will be built:
  /nix/store/29r0mvvjn6xwr89z4ihfrqi42m6pn45x-clan-cli-source.drv
  /nix/store/03aws24dyp5ra50hx2i4019rc6fwp23q-clan-cli.drv
  /nix/store/nk4a7pn80qvzxysw65h828nfmmxhi470-nix-shell.drv