this derivation will be built:
  /nix/store/s21n7di86k021n6257wwfkwk6qzq937x-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/s21n7di86k021n6257wwfkwk6qzq937x-bcachefs-module-7.0.0-31-generic.drv'...