style(clippy): address some new clippy warnings (#111)

Author: danieleades

benches/sherlock.rs

@@ -1,6 +1,7 @@
-use std::{fs::File, io::Read, ops::Range};
+use std::{fs::File, hint::black_box, io::Read, ops::Range};
 
 use arithmetic_coding::Model;
+use criterion::{criterion_group, criterion_main, Criterion};
 use fenwick_model::{simple::FenwickModel, ValueError};
 
 mod common;
@@ -58,8 +59,6 @@ fn round_trip(input: &[u8]) {
     common::round_trip(model, input);
 }
 
-use criterion::{black_box, criterion_group, criterion_main, Criterion};
-
 #[allow(clippy::missing_panics_doc)]
 pub fn criterion_benchmark(c: &mut Criterion) {
     let mut input_string = String::new();

src/decoder.rs

@@ -100,7 +100,7 @@ where
     /// Return an iterator over the decoded symbols.
     ///
     /// The iterator will continue returning symbols until EOF is reached
-    pub const fn decode_all(&mut self) -> DecodeIter<M, R> {
+    pub const fn decode_all(&'_ mut self) -> DecodeIter<'_, M, R> {
         DecodeIter { decoder: self }
     }