these 4 derivations will be built:
  /nix/store/qw1635vz55hamd9lqcis7q23p0y83fkx-clan-runtime.drv
  /nix/store/4hnkl78bdfj85f5ddgx70h74prl5zz7m-clan-cli-source.drv
  /nix/store/2kb8z63jvpma0n82g317fxswnmh3bk3n-clan-cli.drv
  /nix/store/h66pc2gb9i5mnxbx2x1kwb5sqw1acj5p-nix-shell.drv