this derivation will be built:
  /nix/store/sjljxwf4vahv6kbzqzg75xhpn3bycq2x-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/sjljxwf4vahv6kbzqzg75xhpn3bycq2x-bcachefs-module-7.0.0-34-generic.drv'...