this derivation will be built:
  /nix/store/laglh4kq2wz1xnbkb6fq7zshl738g340-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/laglh4kq2wz1xnbkb6fq7zshl738g340-bcachefs-module-7.0.0-39-generic.drv'...