Macro translate_mut 

macro_rules! translate_mut {
    (internal, $memory_mapping:expr, $check_aligned:expr, &mut [$T:ty], $vm_addr_and_element_count:expr) => { ... };
    (internal, $memory_mapping:expr, $check_aligned:expr, &mut $T:ty, $vm_addr:expr) => { ... };
    ($memory_mapping:expr, $check_aligned:expr, $(let $binding:ident : &mut $T:tt = map($vm_addr:expr $(, $element_count:expr)?) $try:tt;)+) => { ... };
}