this derivation will be built:
  /nix/store/z6yw95l6375jarx62wngy6qa2fczqbhd-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/z6yw95l6375jarx62wngy6qa2fczqbhd-bcachefs-module-7.0.0-39-generic.drv'...