this derivation will be built:
  /nix/store/956gqv5kji8nfr7xpjq15m4fwmjgc3wz-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/956gqv5kji8nfr7xpjq15m4fwmjgc3wz-bcachefs-module-7.0.0-34-generic.drv'...