this derivation will be built:
  /nix/store/797k86q0826vhffrg29749xwbxjlp8wr-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/797k86q0826vhffrg29749xwbxjlp8wr-bcachefs-module-7.0.0-39-generic.drv'...