these 4 derivations will be built:
  /nix/store/w20ndijp9fxp33hkxqjdja7czrhakyd5-clan-runtime.drv
  /nix/store/5acxznzzf80pbmf3l69pimggpnk62hkc-clan-cli-source.drv
  /nix/store/vwd4sfqvghcdmgbqdwg9n73pll18qdpa-clan-cli.drv
  /nix/store/x8vz37hyznksb8bsxkfc0y4ysp5b5yw7-nix-shell.drv