message: types/list: Derive an implementation of AsRustType for Vec<Timespec>.
diff: @@ -9,6 +9,7 @@ use crate::types::udt::UDT;
  use crate::types::{AsRust, AsRustType, CBytes};
  use std::net::IpAddr;
  use uuid::Uuid;
  +use time::Timespec;
  // TODO: consider using pointers to ColTypeOption and Vec<CBytes> instead of owning them.
  #[derive(Debug)]
  @@ -53,3 +54,4 @@ list_as_rust!(Map);
  list_as_rust!(UDT);
  list_as_rust!(Tuple);
  list_as_rust!(Decimal);
  +list_as_rust!(Timespec);
  