these 4 derivations will be built:
  /nix/store/2icifhkhfd23zgci0l5wx4ask11k9r9v-clan-runtime.drv
  /nix/store/3wfikpy2fz754ca14ans87rxqj1477d4-clan-cli-source.drv
  /nix/store/zs3ng15glrlm3kszv3rd3hdz1250fdwx-clan-cli.drv
  /nix/store/34p8wigg4g5xzfnzxdp3bm3nx798wy03-nix-shell.drv