these 4 derivations will be built:
  /nix/store/gz799axp2cdjb6ilbpbf2xgrqk7gblql-clan-runtime.drv
  /nix/store/qfaq9m003sbhkvdbyy89rj07qk31ga97-clan-cli-source.drv
  /nix/store/dmrb9hgq1a934kyk5pch5qq0hqsp7fv6-clan-cli.drv
  /nix/store/6li1hmrfxmiafy06208kicxvq9b9jn0g-nix-shell.drv