these 3 derivations will be built:
  /nix/store/i39ydj90ia4my5wb5nfngdi5nv2ik11a-clan-cli-source.drv
  /nix/store/xvnx5v4g5a1zd0brdmv5m5swqyw90ghx-clan-cli.drv
  /nix/store/qm86sbkqp2bw06kmvmxh8v2942fq5661-nix-shell.drv