this derivation will be built:
  /nix/store/0mz8a5gl2avjl28zd8kg596yyngc9sdd-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/0mz8a5gl2avjl28zd8kg596yyngc9sdd-bcachefs-module-7.0.0-39-generic.drv'...