this derivation will be built:
  /nix/store/g8sflwcvzb37vj1db2f0cs840riq68ym-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/g8sflwcvzb37vj1db2f0cs840riq68ym-bcachefs-module-7.0.0-34-generic.drv'...