these 4 derivations will be built:
  /nix/store/xq6qbbbzh39r4xkwryq1ka5g5m67f2xj-clan-runtime.drv
  /nix/store/a0iqx6rmpc2qgi09pkyv4q30v8bgscb5-clan-cli-source.drv
  /nix/store/whd38rlg87frvn1z1wbpx8yy0dyi8jj5-clan-cli.drv
  /nix/store/dl7j8rds9pv8vhfdyawfcyrbss6af82l-nix-shell.drv