these 3 derivations will be built:
  /nix/store/hvb3m0zc6a6dg9bnl16nfk5rp8z676m7-clan-cli-source.drv
  /nix/store/rndsx0mxnk26gfmlhsjj8kjki5fhnf21-clan-cli.drv
  /nix/store/ryjg2a5b40n721bkk2bx0vdhp3lk87aj-nix-shell.drv