warning: struct is never constructed: `Remainder`
  --> src/uucore/src/lib/features/tokenize/num_format/formatters/base_conv/mod.rs:35:12
   |
35 | pub struct Remainder<'a> {
   |            ^^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: struct is never constructed: `DivOut`
  --> src/uucore/src/lib/features/tokenize/num_format/formatters/base_conv/mod.rs:41:12
   |
41 | pub struct DivOut<'a> {
   |            ^^^^^^

warning: function is never used: `arrnum_int_div_step`
  --> src/uucore/src/lib/features/tokenize/num_format/formatters/base_conv/mod.rs:46:8
   |
46 | pub fn arrnum_int_div_step(
   |        ^^^^^^^^^^^^^^^^^^^

warning: function is never used: `unsigned_to_arrnum`
   --> src/uucore/src/lib/features/tokenize/num_format/formatters/base_conv/mod.rs:144:8
    |
144 | pub fn unsigned_to_arrnum(src: u16) -> Vec<u8> {
    |        ^^^^^^^^^^^^^^^^^^

warning: field is never read: `as_num`
  --> src/uucore/src/lib/features/tokenize/num_format/formatters/cninetyninehexfloatf.rs:12:5
   |
12 |     as_num: f64,
   |     ^^^^^^^^^^^

warning: function is never used: `to_hex`
  --> src/uucore/src/lib/features/tokenize/num_format/formatters/cninetyninehexfloatf.rs:94:4
   |
94 | fn to_hex(src: &str, before_decimal: bool) -> String {
   |    ^^^^^^