these 4 derivations will be built:
  /nix/store/msz77j6ay1n9caqq57k6abvxsawi5k0p-clan-cli-source.drv
  /nix/store/iysdqaj2i83rrchi5ijhx1fb8grb1g8a-clan-cli.drv
  /nix/store/8vc6bfw2hs34j89igy36cqsf0rqrnqah-tofu.drv
  /nix/store/rv00ygipk1szw7ccf6mv1a8355nb1i7d-cache-new.drv