these 4 derivations will be built:
  /nix/store/yrrpdpg29y5vqxk3dpvav730ymr5j59g-clan-runtime.drv
  /nix/store/r2dq0ch01zgn30cva2l411adbb58plw8-clan-cli-source.drv
  /nix/store/hlmlxhcdpqgjrd5h0pnynkyna3ah53zm-clan-cli.drv
  /nix/store/d3b5hj5r15yd98x58mnlb9kr8aaaf2m5-nix-shell.drv