this derivation will be built:
  /nix/store/dlb2fphahj4b2lfrqq11jm1n0z70gj2z-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/dlb2fphahj4b2lfrqq11jm1n0z70gj2z-bcachefs-module-7.0.0-39-generic.drv'...