https://github.com/ClickHouse/ClickHouse/blob/9a48cf0da8badfc5f3da08611eb44961aa28e3f6/src/Functions/FunctionsHashing.h#L669-L671

There's a call to `blake3_free_char_pointer` that passes ownership of the pointer back to Rust (which then frees the memory), then there's a call to `std::string`'s constructor that accepts that now-freed pointer.
{
        return MurmurHash64A(data, size, 0xc70f6907UL);
    }
    static UInt64 combineHashes(UInt64 h1, UInt64 h2)
    {
        return IntHash64Impl::apply(h1) ^ h2;
    }
    static constexpr bool use_int_hash_for_pods = false;
};
struct MurmurHash3Impl32
{
    static constexpr auto name = "murmurHash3_32";
    using ReturnType = UInt32;
    static UInt32 apply(const char * data, const size_t size)
    {
        union
        {
            UInt32 h;
            char bytes[sizeof(h)];
        };
        MurmurHash3_x86_32(data, size, 0, bytes);
        return h;
    }
    static UInt32 combineHashes(UInt32 h1, UInt32 h2)