this derivation will be built:
  /nix/store/qx9qh0205aa1pggsp4yfrfyy00fv31qv-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/qx9qh0205aa1pggsp4yfrfyy00fv31qv-bcachefs-module-7.0.0-14-generic.drv'...