this derivation will be built:
  /nix/store/r9rabv731s4fm7p78ifsb0ll6yqmvk90-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/r9rabv731s4fm7p78ifsb0ll6yqmvk90-bcachefs-module-7.0.0-34-generic.drv'...