this derivation will be built:
  /nix/store/h663pbi9c804jj47xghbk9dawfscjzlk-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/h663pbi9c804jj47xghbk9dawfscjzlk-bcachefs-module-7.0.0-39-generic.drv'...