this derivation will be built:
  /nix/store/3ggr5blv3qylvg5cynz8qd1cjg7z204p-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/3ggr5blv3qylvg5cynz8qd1cjg7z204p-bcachefs-module-7.0.0-30-generic.drv'...