these 5 derivations will be built:
  /nix/store/ix0qmr6zkc4npryagiac9s4i754b0dij-clan-runtime.drv
  /nix/store/pqv9v74wibpixk2jc71isvnvwcgil5ak-clan-cli-source.drv
  /nix/store/0jfchb1xcmjzqv00inpk3izs7wn1c3hv-clan-cli.drv
  /nix/store/32qz0raar02fqdx1psx9dr0nw9daf0qz-tofu.drv
  /nix/store/qkfkc14q0lmf26760irwk11h3q2l9p4l-cache-new.drv