these 4 derivations will be built:
  /nix/store/jsllvakizp2c8kyhld5gbsbw65bn7j1v-clan-runtime.drv
  /nix/store/3isqiis5pkrirjvxa7qv04b3046l78ms-clan-cli-source.drv
  /nix/store/qva7wi2zyfcwxf1d3abxc2zwz4vfpcm7-clan-cli.drv
  /nix/store/g05z8ch4ck5scjinqsdkls9h5whd17qr-nix-shell.drv