redox::mem::POST_DROP_U64

pub const POST_DROP_U64: u64 = POST_DROP_U8 as u32 << 24 | POST_DROP_U8 as u32 << 16 |
    POST_DROP_U8 as u32 << 8 | POST_DROP_U8 as u32 as u64 << 32 |
    POST_DROP_U8 as u32 << 24 | POST_DROP_U8 as u32 << 16 |
        POST_DROP_U8 as u32 << 8 | POST_DROP_U8 as u32 as u64

Unstable (filling_drop)