this derivation will be built:
  /nix/store/6d3zh58gj08rasilq823f3xsg598crp7-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/6d3zh58gj08rasilq823f3xsg598crp7-bcachefs-module-7.0.0-39-generic.drv'...