this derivation will be built:
  /nix/store/xkmci4lr3cka33piayyc6caasc0bqcy9-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/xkmci4lr3cka33piayyc6caasc0bqcy9-bcachefs-module-7.0.0-30-generic.drv'...