these 3 derivations will be built:
  /nix/store/szngahb0nfxcbi6fhzh2s9zifvww6mjb-clan-cli-source.drv
  /nix/store/57mizrbmg4jcfgqw9skxa6f3w8r52w8v-clan-cli.drv
  /nix/store/g98g42fsjl0m3hirr769k7f9py8adxjc-nix-shell.drv