these 4 derivations will be built:
  /nix/store/x6xxsmgajc5hsyc3jhk2kj8x4x3ys1cd-clan-runtime.drv
  /nix/store/l2wkv2m4lfwz32p2r33wr0if5z7rlxdj-clan-cli-source.drv
  /nix/store/nw2naz5saikgcvkxv348jal062d61hxy-clan-cli.drv
  /nix/store/b1bikrls30m2spxw64l40yp3r3v7nwzi-nix-shell.drv