cargo:rerun-if-changed={folder} doesn't run recompiling after icons folder was changed

[lessneek]

icons.toml

icon_folder = "src/res/icons"

When I put a new svg icon to the icon_folder (the folder modify property is changed) and cargo run an app doesn't display a new icon, because cargo doesn't rerun the icons building script.
I need save the icons.toml without any changes in order to update the modify property of the file to rerun compiling of relm4-icons crate build script.

I think a path to icon_folder should be a full path.