this derivation will be built:
  /nix/store/4rvacflcdxvs5df2k2fl74yjsb12dnvz-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/4rvacflcdxvs5df2k2fl74yjsb12dnvz-bcachefs-module-7.0.0-31-generic.drv'...