this derivation will be built:
  /nix/store/b99l43811zziww9xxxcq5h0l1iwx9jwc-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/b99l43811zziww9xxxcq5h0l1iwx9jwc-bcachefs-module-7.0.0-38-generic.drv'...