Function print_unmatched_explicit_paths 

pub fn print_unmatched_explicit_paths<'a>(
    ui: &Ui,
    workspace_command: &WorkspaceCommandHelper,
    expression: &FilesetExpression,
    trees: impl IntoIterator<Item = &'a MergedTree>,
) -> Result<()>

Prints warning about explicit paths that don’t match any of the tree entries.