this derivation will be built:
  /nix/store/anywfkwb4637h7305f43dzmqbwpbd7sz-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/anywfkwb4637h7305f43dzmqbwpbd7sz-bcachefs-module-7.0.0-29-generic.drv'...