refactor: Apply cargo reccomended cleanups

src/main.rs

@@ -1,5 +1,5 @@
 use std::{
-    env::{self, args},
+    env::{self},
     fs,
 };
 

src/tasks/mod.rs

@@ -8,7 +8,7 @@ use tasks01::{
     gfmul::gfmul_task,
     poly2block::poly2block,
     sea128::sea128,
-    xex::{self, fde_xex},
+    xex::{fde_xex},
 };
 
 use anyhow::{anyhow, Result};

src/tasks/tasks01/block2poly.rs

@@ -1,4 +1,4 @@
-use crate::utils::poly::{b64_2_num, block_2_polynomial, get_coefficients};
+use crate::utils::poly::block_2_polynomial;
 use anyhow::Result;
 use base64::prelude::*;
 use serde_json::Value;
@@ -19,7 +19,7 @@ pub fn block2poly(val: &Value) -> Result<Vec<u8>> {
 #[cfg(test)]
 mod tests {
     use serde_json::json;
-    use std::str::FromStr;
+    
 
     // Note this useful idiom: importing names from outer (for mod tests) scope.
     use super::*;

src/tasks/tasks01/gfmul.rs

@@ -1,7 +1,4 @@
-use crate::utils::{
-    field::ByteArray,
-    poly::{b64_2_num, coefficient_to_binary, gfmul},
-};
+use crate::utils::poly::gfmul;
 
 use anyhow::Result;
 use base64::prelude::*;
@@ -24,7 +21,7 @@ pub fn gfmul_task(args: &Value) -> Result<Vec<u8>> {
 #[cfg(test)]
 mod tests {
     use serde_json::json;
-    use std::str::FromStr;
+    
 
     // Note this useful idiom: importing names from outer (for mod tests) scope.
     use super::*;

src/tasks/tasks01/poly2block.rs

@@ -1,6 +1,5 @@
-use crate::utils::poly::{self, polynomial_2_block};
+use crate::utils::poly::{polynomial_2_block};
 use anyhow::{Ok, Result};
-use base64::prelude::*;
 use serde_json::Value;
 
 pub fn poly2block(args: &Value) -> Result<Vec<u8>> {

src/tasks/tasks01/sea128.rs

@@ -34,7 +34,7 @@ pub fn sea128(args: &Value) -> Result<String> {
 
 #[cfg(test)]
 mod tests {
-    use std::fs;
+    
 
     use anyhow::Result;
     use serde_json::json;

src/utils/ciphers.rs

@@ -1,4 +1,3 @@
-use std::io::BufRead;
 
 use anyhow::Result;
 use openssl::symm::{Cipher, Crypter, Mode};

src/utils/field.rs

@@ -101,7 +101,7 @@ impl ByteArray {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::fs;
+    
 
     #[test]
     fn test_byte_array_shift1() {

src/utils/math.rs

@@ -1,7 +1,5 @@
-use anyhow::{anyhow, Ok, Result};
-use base64::Engine;
+use anyhow::{Ok, Result};
 
-use super::poly::gfmul;
 
 pub fn xor_bytes(vec1: &Vec<u8>, mut vec2: Vec<u8>) -> Result<Vec<u8>> {
     for (byte1, byte2) in vec1.iter().zip(vec2.iter_mut()) {

src/utils/parse.rs

@@ -28,7 +28,7 @@ pub fn parse_json(json: String) -> Result<Testcases> {
 mod tests {
     use std::fs;
 
-    use serde_json::json;
+    
 
     // Note this useful idiom: importing names from outer (for mod tests) scope.
     use super::*;

src/utils/poly.rs

@@ -1,10 +1,8 @@
 use crate::utils::field::ByteArray;
 use anyhow::{anyhow, Result};
 use base64::prelude::*;
-use serde_json::Value;
 use std::{str::FromStr, u128, u8, usize};
 
-use super::field;
 pub const RED_POLY: u128 = 0x87000000_00000000_00000000_00000000;
 
 pub fn gfmul(poly_a: Vec<u8>, poly_b: Vec<u8>, semantic: &str) -> Result<Vec<u8>> {
@@ -167,7 +165,7 @@ pub fn coefficients_to_byte_arr_xex(coeffs: Vec<u8>) -> Vec<u8> {
     let mut byte_array: Vec<u8> = vec![0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
     for coeff in coeffs {
         let block_num = coeff / 8;
-        byte_array[usize::from(block_num)] |= (1 << (coeff % 7));
+        byte_array[usize::from(block_num)] |= 1 << (coeff % 7);
     }
 
     byte_array