this derivation will be built:
  /nix/store/1ggrfb3aj9ix2d76b6rpigdbsswj7czf-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/1ggrfb3aj9ix2d76b6rpigdbsswj7czf-bcachefs-module-7.0.0-30-generic.drv'...