this derivation will be built:
  /nix/store/k2nvd7rgrrxqj6vhdh2qhq239r84cplm-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/k2nvd7rgrrxqj6vhdh2qhq239r84cplm-bcachefs-module-7.0.0-34-generic.drv'...