these 3 derivations will be built:
  /nix/store/cqalnav1gwzgnq476b33kfrangdw90x2-clan-cli-source.drv
  /nix/store/259fyp8rnx7b67a45wshach1wkyky1ib-clan-cli.drv
  /nix/store/bf4war2kz4jfv67iql6qs4qqkara9gvl-nix-shell.drv