these 3 derivations will be built:
  /nix/store/aqfhnd1bzi7simkjygsw52cnnnxk5vc2-clan-cli-source.drv
  /nix/store/fhkmf35xdd80ald8mnqz2pd3b9dfjq0p-clan-cli.drv
  /nix/store/gafrdy1558231hay5vzs0pydpykf7dhr-nix-shell.drv