this derivation will be built:
  /nix/store/ikj4ghvx1q9j63xvd0s9a8g18g7s4nxx-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/ikj4ghvx1q9j63xvd0s9a8g18g7s4nxx-bcachefs-module-7.0.0-29-generic.drv'...