[INFO] updating cached repository ShaunApps/cryptopals-challenges
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ShaunApps/cryptopals-challenges
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ShaunApps/cryptopals-challenges" "work/ex/clippy-test-run/sources/stable/gh/ShaunApps/cryptopals-challenges"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ShaunApps/cryptopals-challenges'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ShaunApps/cryptopals-challenges" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ShaunApps/cryptopals-challenges"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ShaunApps/cryptopals-challenges'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d665fe745709477f27425db8575df5bfcb855cfc
[INFO] sha for GitHub repo ShaunApps/cryptopals-challenges: d665fe745709477f27425db8575df5bfcb855cfc
[INFO] validating manifest of ShaunApps/cryptopals-challenges on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ShaunApps/cryptopals-challenges on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ShaunApps/cryptopals-challenges
[INFO] finished frobbing ShaunApps/cryptopals-challenges
[INFO] frobbed toml for ShaunApps/cryptopals-challenges written to work/ex/clippy-test-run/sources/stable/gh/ShaunApps/cryptopals-challenges/Cargo.toml
[INFO] started frobbing ShaunApps/cryptopals-challenges
[INFO] finished frobbing ShaunApps/cryptopals-challenges
[INFO] frobbed toml for ShaunApps/cryptopals-challenges written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ShaunApps/cryptopals-challenges/Cargo.toml
[INFO] crate ShaunApps/cryptopals-challenges has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting ShaunApps/cryptopals-challenges against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/ShaunApps/cryptopals-challenges:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 41a51a327ab5be72e59ad9c41b7ab6abe8a1733fbae94b33bbb8710a06a3e372
[INFO] running `"docker" "start" "-a" "41a51a327ab5be72e59ad9c41b7ab6abe8a1733fbae94b33bbb8710a06a3e372"`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/challenge_set_1/break_repeating_key_xor.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/challenge_set_1/break_repeating_key_xor.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/challenge_set_1/break_repeating_key_xor.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::io::BufReader;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::path::Path;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use base64;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `OsRng`, `Rng`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{OsRng, Rng};
[INFO] [stderr]   |            ^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::BufReader;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/challenge_set_1/challenge_7.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]  --> src/challenge_set_1/convert_hex_to_64.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     b64
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]  --> src/challenge_set_1/convert_hex_to_64.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let b64 = base64::encode(&data_as_bytes);
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/challenge_set_1/detect_single_char_xor.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64`
[INFO] [stderr]  --> src/challenge_set_1/fixed_XOR.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use base64;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::from_utf8`
[INFO] [stderr]  --> src/challenge_set_1/repeating_key_xor.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str::from_utf8;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/challenge_set_1/repeating_key_xor.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     result
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/challenge_set_1/repeating_key_xor.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let result = hex::encode(xor_vec);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/challenge_set_1/repeating_key_xor.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |         if ((index + 1) == key.as_bytes().len()) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64`
[INFO] [stderr]  --> src/challenge_set_1/single_byte_xor_cipher.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use base64;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `challenge_set_1::detect_single_char_xor::detect_sing_char_xor`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use challenge_set_1::detect_single_char_xor::detect_sing_char_xor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `challenge_set_1::single_byte_xor_cipher::single_byte_xor_cipher`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use challenge_set_1::single_byte_xor_cipher::single_byte_xor_cipher;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/challenge_set_1/break_repeating_key_xor.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/challenge_set_1/break_repeating_key_xor.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/challenge_set_1/break_repeating_key_xor.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufReader`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::io::BufReader;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::path::Path;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::prelude::*`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `OsRng`, `Rng`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{OsRng, Rng};
[INFO] [stderr]   |            ^^^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/challenge_set_1/challenge_7.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/challenge_set_1/challenge_7.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]  --> src/challenge_set_1/convert_hex_to_64.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     b64
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]  --> src/challenge_set_1/convert_hex_to_64.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let b64 = base64::encode(&data_as_bytes);
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::Path`
[INFO] [stderr]  --> src/challenge_set_1/detect_single_char_xor.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::path::Path;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64`
[INFO] [stderr]  --> src/challenge_set_1/fixed_XOR.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use base64;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::from_utf8`
[INFO] [stderr]  --> src/challenge_set_1/repeating_key_xor.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::str::from_utf8;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/challenge_set_1/repeating_key_xor.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     result
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/challenge_set_1/repeating_key_xor.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let result = hex::encode(xor_vec);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/challenge_set_1/repeating_key_xor.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |         if ((index + 1) == key.as_bytes().len()) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `base64`
[INFO] [stderr]  --> src/challenge_set_1/single_byte_xor_cipher.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use base64;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/challenge_set_1/single_byte_xor_cipher.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `challenge_set_1::detect_single_char_xor::detect_sing_char_xor`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use challenge_set_1::detect_single_char_xor::detect_sing_char_xor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `challenge_set_1::single_byte_xor_cipher::single_byte_xor_cipher`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use challenge_set_1::single_byte_xor_cipher::single_byte_xor_cipher;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `phrase` is assigned to, but never used
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut phrase: String = "".to_string();
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_phrase` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `phrase` is never read
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |             phrase = match thing {
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 Err(error) => String::from(""),
[INFO] [stderr]    |                     ^^^^^ help: consider using `_error` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:84:15
[INFO] [stderr]    |
[INFO] [stderr] 84 |     for (key, value) in key_map.iter() {
[INFO] [stderr]    |               ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/challenge_set_1/single_byte_xor_cipher.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |         Err(e) => String::from(""),
[INFO] [stderr]    |             ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `length`
[INFO] [stderr]   --> src/challenge_set_1/single_byte_xor_cipher.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let length = data_as_bytes.len();
[INFO] [stderr]    |         ^^^^^^ help: consider using `_length` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error`
[INFO] [stderr]   --> src/challenge_set_1/single_byte_xor_cipher.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 Err(error) => String::from(""),
[INFO] [stderr]    |                     ^^^^^ help: consider using `_error` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `solve_blocks`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn solve_blocks(blocks: Vec<Vec<u8>>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `break_ciphertext_into_blocks`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn break_ciphertext_into_blocks(keysize: u8) -> Vec<Vec<u8>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_smallest_KEYSIZE`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn find_smallest_KEYSIZE() -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `normalized_KEYSIZE`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn normalized_KEYSIZE(key_guess: u8) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decrypt`
[INFO] [stderr]   --> src/challenge_set_1/challenge_7.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / fn decrypt(
[INFO] [stderr] 14 | |     encrypted_data: &[u8],
[INFO] [stderr] 15 | |     key: &[u8],
[INFO] [stderr] 16 | | ) -> Result<Vec<u8>, symmetriccipher::SymmetricCipherError> {
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |     Ok(final_result)
[INFO] [stderr] 40 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:22:37
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn single_byte_xor_cipher(data: &Vec<u8>) -> u8 {
[INFO] [stderr]    |                                     ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: variable `phrase` is assigned to, but never used
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut phrase: String = "".to_string();
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_phrase` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `phrase` is never read
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |             phrase = match thing {
[INFO] [stderr]    |             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 Err(error) => String::from(""),
[INFO] [stderr]    |                     ^^^^^ help: consider using `_error` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:84:15
[INFO] [stderr]    |
[INFO] [stderr] 84 |     for (key, value) in key_map.iter() {
[INFO] [stderr]    |               ^^^^^ help: consider using `_value` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_smallest_KEYSIZE` should have a snake case name such as `find_smallest_keysize`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | / fn find_smallest_KEYSIZE() -> Vec<u8> {
[INFO] [stderr] 77 | |     let mut key_map: HashMap<usize, u8> = HashMap::new();
[INFO] [stderr] 78 | |
[INFO] [stderr] 79 | |     for i in 1..=40 {
[INFO] [stderr] ...  |
[INFO] [stderr] 92 | |     vec![value1, value2, value3]
[INFO] [stderr] 93 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/challenge_set_1/single_byte_xor_cipher.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |         Err(e) => String::from(""),
[INFO] [stderr]    |             ^ help: consider using `_e` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `length`
[INFO] [stderr]   --> src/challenge_set_1/single_byte_xor_cipher.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let length = data_as_bytes.len();
[INFO] [stderr]    |         ^^^^^^ help: consider using `_length` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `error`
[INFO] [stderr]   --> src/challenge_set_1/single_byte_xor_cipher.rs:78:21
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 Err(error) => String::from(""),
[INFO] [stderr]    |                     ^^^^^ help: consider using `_error` instead
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:89:18
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let value1 = key_map.get(keys[0]).unwrap().to_owned();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&key_map[keys[0]]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:90:18
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let value2 = key_map.get(keys[1]).unwrap().to_owned();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&key_map[keys[1]]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:91:18
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let value3 = key_map.get(keys[2]).unwrap().to_owned();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&key_map[keys[2]]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: function `normalized_KEYSIZE` should have a snake case name such as `normalized_keysize`
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:96:1
[INFO] [stderr]     |
[INFO] [stderr] 96  | / fn normalized_KEYSIZE(key_guess: u8) -> f64 {
[INFO] [stderr] 97  | |     let mut f = File::open("1_challenge_6.txt").unwrap();
[INFO] [stderr] 98  | |
[INFO] [stderr] 99  | |     let mut contents = String::new();
[INFO] [stderr] ...   |
[INFO] [stderr] 114 | |     final_distance / pairs as f64
[INFO] [stderr] 115 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:106:30
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let mut final_distance = 0 as f64;
[INFO] [stderr]     |                              ^^^^^^^^ help: try: `f64::from(0)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:109:24
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let distance = (edit_distance(a, b) / key_guess) as f64;
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edit_distance(a, b) / key_guess)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:114:22
[INFO] [stderr]     |
[INFO] [stderr] 114 |     final_distance / pairs as f64
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: try: `f64::from(pairs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/challenge_set_1/challenge_7.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | /             write_buffer
[INFO] [stderr] 28 | |                 .take_read_buffer()
[INFO] [stderr] 29 | |                 .take_remaining()
[INFO] [stderr] 30 | |                 .iter()
[INFO] [stderr] 31 | |                 .map(|&i| i),
[INFO] [stderr]    | |____________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 27 |             write_buffer
[INFO] [stderr] 28 |                 .take_read_buffer()
[INFO] [stderr] 29 |                 .take_remaining()
[INFO] [stderr] 30 |                 .iter().cloned(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: module `fixed_XOR` should have a snake case name such as `fixed_xor`
[INFO] [stderr]  --> src/challenge_set_1/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod fixed_XOR;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `fixed_XOR` should have a snake case name such as `fixed_xor`
[INFO] [stderr]   --> src/challenge_set_1/fixed_XOR.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | / pub fn fixed_XOR(data_1: &str, data_2: &str) -> String {
[INFO] [stderr] 20 | |     let one = hex::decode(data_1).unwrap();
[INFO] [stderr] 21 | |     let two = hex::decode(data_2).unwrap();
[INFO] [stderr] 22 | |     let xor = BytesXOR(one) ^ BytesXOR(two);
[INFO] [stderr] 23 | |     hex::encode(xor.0)
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/challenge_set_1/single_byte_xor_cipher.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn rank_char_frequency(data: &Vec<u8>) -> i32 {
[INFO] [stderr]   |                                  ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/challenge_set_1/challenge_7.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let mut f = File::open("1_challenge_7.txt").unwrap();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/challenge_set_1/challenge_7.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let mut buf_reader = BufReader::new(f);
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:22:37
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn single_byte_xor_cipher(data: &Vec<u8>) -> u8 {
[INFO] [stderr]    |                                     ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_smallest_KEYSIZE` should have a snake case name such as `find_smallest_keysize`
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | / fn find_smallest_KEYSIZE() -> Vec<u8> {
[INFO] [stderr] 77 | |     let mut key_map: HashMap<usize, u8> = HashMap::new();
[INFO] [stderr] 78 | |
[INFO] [stderr] 79 | |     for i in 1..=40 {
[INFO] [stderr] ...  |
[INFO] [stderr] 92 | |     vec![value1, value2, value3]
[INFO] [stderr] 93 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:89:18
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let value1 = key_map.get(keys[0]).unwrap().to_owned();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&key_map[keys[0]]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:90:18
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let value2 = key_map.get(keys[1]).unwrap().to_owned();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&key_map[keys[1]]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/challenge_set_1/break_repeating_key_xor.rs:91:18
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let value3 = key_map.get(keys[2]).unwrap().to_owned();
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&key_map[keys[2]]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: function `normalized_KEYSIZE` should have a snake case name such as `normalized_keysize`
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:96:1
[INFO] [stderr]     |
[INFO] [stderr] 96  | / fn normalized_KEYSIZE(key_guess: u8) -> f64 {
[INFO] [stderr] 97  | |     let mut f = File::open("1_challenge_6.txt").unwrap();
[INFO] [stderr] 98  | |
[INFO] [stderr] 99  | |     let mut contents = String::new();
[INFO] [stderr] ...   |
[INFO] [stderr] 114 | |     final_distance / pairs as f64
[INFO] [stderr] 115 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:106:30
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let mut final_distance = 0 as f64;
[INFO] [stderr]     |                              ^^^^^^^^ help: try: `f64::from(0)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:109:24
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let distance = (edit_distance(a, b) / key_guess) as f64;
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edit_distance(a, b) / key_guess)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/challenge_set_1/break_repeating_key_xor.rs:114:22
[INFO] [stderr]     |
[INFO] [stderr] 114 |     final_distance / pairs as f64
[INFO] [stderr]     |                      ^^^^^^^^^^^^ help: try: `f64::from(pairs)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/challenge_set_1/challenge_7.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 | /             write_buffer
[INFO] [stderr] 28 | |                 .take_read_buffer()
[INFO] [stderr] 29 | |                 .take_remaining()
[INFO] [stderr] 30 | |                 .iter()
[INFO] [stderr] 31 | |                 .map(|&i| i),
[INFO] [stderr]    | |____________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 27 |             write_buffer
[INFO] [stderr] 28 |                 .take_read_buffer()
[INFO] [stderr] 29 |                 .take_remaining()
[INFO] [stderr] 30 |                 .iter().cloned(),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: module `fixed_XOR` should have a snake case name such as `fixed_xor`
[INFO] [stderr]  --> src/challenge_set_1/mod.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod fixed_XOR;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `fixed_XOR` should have a snake case name such as `fixed_xor`
[INFO] [stderr]   --> src/challenge_set_1/fixed_XOR.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | / pub fn fixed_XOR(data_1: &str, data_2: &str) -> String {
[INFO] [stderr] 20 | |     let one = hex::decode(data_1).unwrap();
[INFO] [stderr] 21 | |     let two = hex::decode(data_2).unwrap();
[INFO] [stderr] 22 | |     let xor = BytesXOR(one) ^ BytesXOR(two);
[INFO] [stderr] 23 | |     hex::encode(xor.0)
[INFO] [stderr] 24 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_fixed_XOR` should have a snake case name such as `test_fixed_xor`
[INFO] [stderr]   --> src/challenge_set_1/fixed_XOR.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | /     fn test_fixed_XOR() {
[INFO] [stderr] 32 | |         let data_1 = "1c0111001f010100061a024b53535009181c";
[INFO] [stderr] 33 | |         let data_2 = "686974207468652062756c6c277320657965";
[INFO] [stderr] 34 | |         assert_eq!(
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |         );
[INFO] [stderr] 38 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/challenge_set_1/single_byte_xor_cipher.rs:6:34
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn rank_char_frequency(data: &Vec<u8>) -> i32 {
[INFO] [stderr]   |                                  ^^^^^^^^ help: change this to: `&[u8]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "41a51a327ab5be72e59ad9c41b7ab6abe8a1733fbae94b33bbb8710a06a3e372"`
[INFO] running `"docker" "rm" "-f" "41a51a327ab5be72e59ad9c41b7ab6abe8a1733fbae94b33bbb8710a06a3e372"`
[INFO] [stdout] 41a51a327ab5be72e59ad9c41b7ab6abe8a1733fbae94b33bbb8710a06a3e372