this derivation will be built:
  /nix/store/8bdkkw804rdg96hl3cpkxn5b51260bk4-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/8bdkkw804rdg96hl3cpkxn5b51260bk4-bcachefs-module-7.0.0-29-generic.drv'...