this derivation will be built:
  /nix/store/357rsgm2720xmh3kvykmdsp42bl4zlm7-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/357rsgm2720xmh3kvykmdsp42bl4zlm7-bcachefs-module-7.0.0-29-generic.drv'...