this derivation will be built:
  /nix/store/n4qyhi29c6m7f3c90cdra84vpm660m7a-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/n4qyhi29c6m7f3c90cdra84vpm660m7a-bcachefs-module-7.0.0-39-generic.drv'...