this derivation will be built:
  /nix/store/8hkd4cpmfayk6viw344sj36rm8i19jmm-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/8hkd4cpmfayk6viw344sj36rm8i19jmm-bcachefs-module-7.0.0-29-generic.drv'...