this derivation will be built:
  /nix/store/0z65rgw801d477d8iis1f26bwdnln9g3-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/0z65rgw801d477d8iis1f26bwdnln9g3-bcachefs-module-7.0.0-30-generic.drv'...