this derivation will be built:
  /nix/store/4h0wfcbhkk1mhyc75mjkmc4pkr6mczwi-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/4h0wfcbhkk1mhyc75mjkmc4pkr6mczwi-bcachefs-module-7.0.0-39-generic.drv'...