use XML::Twig;
my @fails;
my $parser = XML::Twig::->new(twig_roots => {
 '/items/client/site/servers/server/failed_checks/check/description' => sub { push @fails, $_->text },
 '/items/client/site/servers/server/overdue/description' => sub { push @fails, $_->text },
})->parse_file($fail);
my $report = @fails ? 1 : 0;