this derivation will be built:
  /nix/store/7b2g6c6y889p1d555a33wpnqzl9s5vj8-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/7b2g6c6y889p1d555a33wpnqzl9s5vj8-bcachefs-module-7.0.0-29-generic.drv'...