these 5 derivations will be built:
  /nix/store/4bzwlsipli9k78g913iy054c28blqx6a-clan-runtime.drv
  /nix/store/bnzqx21izpnfwkxy80w09c6pamp5624p-closure-info.drv
  /nix/store/dh0cbvs2m0hbqvvi347ci0vg8mdx145n-clan-cli-source.drv
  /nix/store/nndyx3axb1n5a9h6wlmi44qbfn45a7xz-clan-cli.drv
  /nix/store/8qr3ixyh5bs8s2kjl970vhvzrs9lqlj3-check-vars.drv