this derivation will be built:
  /nix/store/5z1565rvzq4awvdn7n5444x259cl7bq6-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/5z1565rvzq4awvdn7n5444x259cl7bq6-bcachefs-module-7.0.0-31-generic.drv'...