this derivation will be built:
  /nix/store/d661zvyafv98yc4i6c0f8fmq9sr2qiqb-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/d661zvyafv98yc4i6c0f8fmq9sr2qiqb-bcachefs-module-7.0.0-34-generic.drv'...