this derivation will be built:
  /nix/store/fr6wgjq0c19jhpw67if6qav0f2k7lwc2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/fr6wgjq0c19jhpw67if6qav0f2k7lwc2-bcachefs-module-7.0.0-39-generic.drv'...