[INFO] updating cached repository rotwatsb/cryptopals
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rotwatsb/cryptopals
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rotwatsb/cryptopals" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/rotwatsb/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/rotwatsb/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rotwatsb/cryptopals" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/rotwatsb/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/rotwatsb/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f0a78614ae8e6210a5dab3a23057ec77f611b29c
[INFO] sha for GitHub repo rotwatsb/cryptopals: f0a78614ae8e6210a5dab3a23057ec77f611b29c
[INFO] validating manifest of rotwatsb/cryptopals on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rotwatsb/cryptopals on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rotwatsb/cryptopals
[INFO] finished frobbing rotwatsb/cryptopals
[INFO] frobbed toml for rotwatsb/cryptopals written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/rotwatsb/cryptopals/Cargo.toml
[INFO] started frobbing rotwatsb/cryptopals
[INFO] finished frobbing rotwatsb/cryptopals
[INFO] frobbed toml for rotwatsb/cryptopals written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/rotwatsb/cryptopals/Cargo.toml
[INFO] crate rotwatsb/cryptopals already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/rotwatsb/cryptopals/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rotwatsb/cryptopals against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-4/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/rotwatsb/cryptopals:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d321e8cecc776491e04bc862ae3b0b99a1e9b9a7d22fe3d1d5c8f3600a44a9b1
[INFO] running `"docker" "start" "-a" "d321e8cecc776491e04bc862ae3b0b99a1e9b9a7d22fe3d1d5c8f3600a44a9b1"`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/set1/prob5.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/set1/prob5.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/utils.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for i in 0 .. to_append {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `buf` is never read
[INFO] [stderr]   --> src/set1/prob1.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut buf: u8 = 0;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `buf` is never read
[INFO] [stderr]   --> src/set1/prob1.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut buf: u8 = 0;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `byte_mask` is never read
[INFO] [stderr]    --> src/set1/prob1.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut byte_mask: u8 = 255 << offset + (8 - bpc);
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `first` is never read
[INFO] [stderr]    --> src/set1/prob1.rs:104:13
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut first: bool = true;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `score`
[INFO] [stderr]   --> src/set1/prob3.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let (decoded_bytes, _, score) = decode_repeating_char_xor(&encoded_bytes);
[INFO] [stderr]    |                            ^^^^^ help: consider prefixing with an underscore: `_score`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `score` is never read
[INFO] [stderr]   --> src/set1/prob3.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut score: i32 = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/set1/prob3.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     for i in 0 .. 5 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ham_dist` is never read
[INFO] [stderr]   --> src/set1/prob6.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut ham_dist: f64 = 0.0;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `keysize` is never read
[INFO] [stderr]   --> src/set1/prob6.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut keysize: usize = 0;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/set1/prob6.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         for i in 0 .. keysize { transposed_blocks.push(Vec::new()); }
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `best_decode`
[INFO] [stderr]   --> src/set1/prob6.rs:54:18
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: consider prefixing with an underscore: `_best_decode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_score`
[INFO] [stderr]   --> src/set1/prob6.rs:54:41
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stderr]    |                                         ^^^^^^^^^ help: consider prefixing with an underscore: `_max_score`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]  --> src/set2/prob12.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[INFO] [stderr]   |             ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/utils.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for i in 0 .. to_append {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `buf` is never read
[INFO] [stderr]   --> src/set1/prob1.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let mut buf: u8 = 0;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `buf` is never read
[INFO] [stderr]   --> src/set1/prob1.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut buf: u8 = 0;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `byte_mask` is never read
[INFO] [stderr]    --> src/set1/prob1.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut byte_mask: u8 = 255 << offset + (8 - bpc);
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `first` is never read
[INFO] [stderr]    --> src/set1/prob1.rs:104:13
[INFO] [stderr]     |
[INFO] [stderr] 104 |     let mut first: bool = true;
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `score`
[INFO] [stderr]   --> src/set1/prob3.rs:12:28
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let (decoded_bytes, _, score) = decode_repeating_char_xor(&encoded_bytes);
[INFO] [stderr]    |                            ^^^^^ help: consider prefixing with an underscore: `_score`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `score` is never read
[INFO] [stderr]   --> src/set1/prob3.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut score: i32 = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/set1/prob3.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     for i in 0 .. 5 {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `ham_dist` is never read
[INFO] [stderr]   --> src/set1/prob6.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut ham_dist: f64 = 0.0;
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `keysize` is never read
[INFO] [stderr]   --> src/set1/prob6.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut keysize: usize = 0;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/set1/prob6.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |         for i in 0 .. keysize { transposed_blocks.push(Vec::new()); }
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `best_decode`
[INFO] [stderr]   --> src/set1/prob6.rs:54:18
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stderr]    |                  ^^^^^^^^^^^ help: consider prefixing with an underscore: `_best_decode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max_score`
[INFO] [stderr]   --> src/set1/prob6.rs:54:41
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let (best_decode, best_key, max_score) =
[INFO] [stderr]    |                                         ^^^^^^^^^ help: consider prefixing with an underscore: `_max_score`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]  --> src/set2/prob12.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[INFO] [stderr]   |             ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/set2/prob12.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[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: static item is never used: `DEBUG`
[INFO] [stderr]  --> src/constants.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub static DEBUG: bool = false;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ecb_decrypt`
[INFO] [stderr]   --> src/utils.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn ecb_decrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ecb_encrypt`
[INFO] [stderr]   --> src/utils.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn ecb_encrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pad_to`
[INFO] [stderr]   --> src/utils.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn pad_to(to_pad: &mut Vec<u8>, block_size: usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cbc_encrypt`
[INFO] [stderr]   --> src/utils.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn cbc_encrypt(bin: &mut Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cbc_decrypt`
[INFO] [stderr]   --> src/utils.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn cbc_decrypt(bin: &Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bin_from_b64file`
[INFO] [stderr]   --> src/utils.rs:99:1
[INFO] [stderr]    |
[INFO] [stderr] 99 | pub fn bin_from_b64file(f: &str) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_xor_slice`
[INFO] [stderr]    --> src/utils.rs:114:1
[INFO] [stderr]     |
[INFO] [stderr] 114 | pub fn set_xor_slice(v1: &[u8], v2: &[u8], into: &mut[u8]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `byte_repeats_exist`
[INFO] [stderr]    --> src/utils.rs:122:1
[INFO] [stderr]     |
[INFO] [stderr] 122 | pub fn byte_repeats_exist(data: &Vec<u8>, n: usize) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BIN_MAP`
[INFO] [stderr]  --> src/set1/prob1.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub const BIN_MAP: [char; 2] = ['0', '1'];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEX_MAP`
[INFO] [stderr]  --> src/set1/prob1.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | / pub const HEX_MAP: [char; 16] =
[INFO] [stderr] 4 | |     ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
[INFO] [stderr] 5 | |      'e', 'f'];
[INFO] [stderr]   | |_______________^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `B64_MAP`
[INFO] [stderr]   --> src/set1/prob1.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / pub const B64_MAP: [char; 64] =
[INFO] [stderr] 8  | |     ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
[INFO] [stderr] 9  | |      'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b',
[INFO] [stderr] 10 | |      'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
[INFO] [stderr] 11 | |      'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3',
[INFO] [stderr] 12 | |      '4', '5', '6', '7', '8', '9', '+', '/'];
[INFO] [stderr]    | |_____________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob1`
[INFO] [stderr]   --> src/set1/prob1.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn prob1() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_hex_string`
[INFO] [stderr]   --> src/set1/prob1.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn from_hex_string(hex: &String) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_b64_string`
[INFO] [stderr]   --> src/set1/prob1.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn from_b64_string(b64_str: &String) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_base`
[INFO] [stderr]   --> src/set1/prob1.rs:94:1
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn to_base(bin: &Vec<u8>, char_map: &[char]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mylog2`
[INFO] [stderr]    --> src/set1/prob1.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn mylog2(n: u8) -> u8 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]    --> src/set1/prob1.rs:142:1
[INFO] [stderr]     |
[INFO] [stderr] 142 | fn test() {
[INFO] [stderr]     | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob2`
[INFO] [stderr]  --> src/set1/prob2.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn prob2() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `xor_vecs`
[INFO] [stderr]   --> src/set1/prob2.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn xor_vecs(v1: &[u8], v2: &[u8]) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob3`
[INFO] [stderr]  --> src/set1/prob3.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn prob3() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decode_repeating_char_xor`
[INFO] [stderr]   --> src/set1/prob3.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn decode_repeating_char_xor(encoded_bytes: &Vec<u8>) -> (Vec<u8>, u8, i32) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_vec`
[INFO] [stderr]   --> src/set1/prob3.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn set_vec(src: &Vec<u8>, dest: &mut Vec<u8>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `score_freqs`
[INFO] [stderr]   --> src/set1/prob3.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn score_freqs(freqs: &Vec<u32>) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calc_freqs`
[INFO] [stderr]   --> src/set1/prob3.rs:92:1
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn calc_freqs(chars: &Vec<u8>, letter_freqs: &mut Vec<u32>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_char_xor`
[INFO] [stderr]    --> src/set1/prob3.rs:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub fn repeating_char_xor(v: &Vec<u8>, result: &mut Vec<u8>, c: &u8) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob4`
[INFO] [stderr]   --> src/set1/prob4.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn prob4() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob5`
[INFO] [stderr]  --> src/set1/prob5.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn prob5() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_seq_xor`
[INFO] [stderr]   --> src/set1/prob5.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn repeating_seq_xor(to_encode: &[u8], result: &mut Vec<u8>, seq: &[u8]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob6`
[INFO] [stderr]   --> src/set1/prob6.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn prob6() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hamming_distance`
[INFO] [stderr]   --> src/set1/prob6.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn hamming_distance(v1: &[u8], v2: &[u8]) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ham_d`
[INFO] [stderr]   --> src/set1/prob6.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn ham_d(a: u8, b: u8) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob7`
[INFO] [stderr]  --> src/set1/prob7.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob7() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob8`
[INFO] [stderr]  --> src/set1/prob8.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn prob8() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob9`
[INFO] [stderr]  --> src/set2/prob9.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob9() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob10`
[INFO] [stderr]  --> src/set2/prob10.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob10() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob11`
[INFO] [stderr]  --> src/set2/prob11.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn prob11() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ecb_or_cbc_oracle`
[INFO] [stderr]  --> src/set2/prob11.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn ecb_or_cbc_oracle(encryptor: &Fn(&mut Vec<u8>) -> Vec<u8>) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rand_encrypt_ecb_or_cbc`
[INFO] [stderr]   --> src/set2/prob11.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn rand_encrypt_ecb_or_cbc(bin: &mut Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob12`
[INFO] [stderr]  --> src/set2/prob12.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob12() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set1`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn set1() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set2`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn set2() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     (*boxed_dec).decrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     (*boxed_enc).encrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/set2/prob12.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut key: Vec<u8> = g.gen_iter().take(16).collect::<Vec<u8>>();
[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: static item is never used: `DEBUG`
[INFO] [stderr]  --> src/constants.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub static DEBUG: bool = false;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ecb_decrypt`
[INFO] [stderr]   --> src/utils.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn ecb_decrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ecb_encrypt`
[INFO] [stderr]   --> src/utils.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn ecb_encrypt(slice_in: &[u8], slice_out: &mut [u8], key: &[u8]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `pad_to`
[INFO] [stderr]   --> src/utils.rs:38:1
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn pad_to(to_pad: &mut Vec<u8>, block_size: usize) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cbc_encrypt`
[INFO] [stderr]   --> src/utils.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn cbc_encrypt(bin: &mut Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cbc_decrypt`
[INFO] [stderr]   --> src/utils.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn cbc_decrypt(bin: &Vec<u8>, iv: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bin_from_b64file`
[INFO] [stderr]   --> src/utils.rs:99:1
[INFO] [stderr]    |
[INFO] [stderr] 99 | pub fn bin_from_b64file(f: &str) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_xor_slice`
[INFO] [stderr]    --> src/utils.rs:114:1
[INFO] [stderr]     |
[INFO] [stderr] 114 | pub fn set_xor_slice(v1: &[u8], v2: &[u8], into: &mut[u8]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `byte_repeats_exist`
[INFO] [stderr]    --> src/utils.rs:122:1
[INFO] [stderr]     |
[INFO] [stderr] 122 | pub fn byte_repeats_exist(data: &Vec<u8>, n: usize) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BIN_MAP`
[INFO] [stderr]  --> src/set1/prob1.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub const BIN_MAP: [char; 2] = ['0', '1'];
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `HEX_MAP`
[INFO] [stderr]  --> src/set1/prob1.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | / pub const HEX_MAP: [char; 16] =
[INFO] [stderr] 4 | |     ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
[INFO] [stderr] 5 | |      'e', 'f'];
[INFO] [stderr]   | |_______________^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `B64_MAP`
[INFO] [stderr]   --> src/set1/prob1.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | / pub const B64_MAP: [char; 64] =
[INFO] [stderr] 8  | |     ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
[INFO] [stderr] 9  | |      'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b',
[INFO] [stderr] 10 | |      'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
[INFO] [stderr] 11 | |      'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3',
[INFO] [stderr] 12 | |      '4', '5', '6', '7', '8', '9', '+', '/'];
[INFO] [stderr]    | |_____________________________________________^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob1`
[INFO] [stderr]   --> src/set1/prob1.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn prob1() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_hex_string`
[INFO] [stderr]   --> src/set1/prob1.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn from_hex_string(hex: &String) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `from_b64_string`
[INFO] [stderr]   --> src/set1/prob1.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn from_b64_string(b64_str: &String) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_base`
[INFO] [stderr]   --> src/set1/prob1.rs:94:1
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn to_base(bin: &Vec<u8>, char_map: &[char]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mylog2`
[INFO] [stderr]    --> src/set1/prob1.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn mylog2(n: u8) -> u8 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]    --> src/set1/prob1.rs:142:1
[INFO] [stderr]     |
[INFO] [stderr] 142 | fn test() {
[INFO] [stderr]     | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob2`
[INFO] [stderr]  --> src/set1/prob2.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn prob2() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `xor_vecs`
[INFO] [stderr]   --> src/set1/prob2.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub fn xor_vecs(v1: &[u8], v2: &[u8]) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob3`
[INFO] [stderr]  --> src/set1/prob3.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn prob3() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decode_repeating_char_xor`
[INFO] [stderr]   --> src/set1/prob3.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn decode_repeating_char_xor(encoded_bytes: &Vec<u8>) -> (Vec<u8>, u8, i32) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set_vec`
[INFO] [stderr]   --> src/set1/prob3.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn set_vec(src: &Vec<u8>, dest: &mut Vec<u8>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `score_freqs`
[INFO] [stderr]   --> src/set1/prob3.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn score_freqs(freqs: &Vec<u32>) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `calc_freqs`
[INFO] [stderr]   --> src/set1/prob3.rs:92:1
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub fn calc_freqs(chars: &Vec<u8>, letter_freqs: &mut Vec<u32>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_char_xor`
[INFO] [stderr]    --> src/set1/prob3.rs:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | pub fn repeating_char_xor(v: &Vec<u8>, result: &mut Vec<u8>, c: &u8) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob4`
[INFO] [stderr]   --> src/set1/prob4.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn prob4() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob5`
[INFO] [stderr]  --> src/set1/prob5.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn prob5() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_seq_xor`
[INFO] [stderr]   --> src/set1/prob5.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn repeating_seq_xor(to_encode: &[u8], result: &mut Vec<u8>, seq: &[u8]) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob6`
[INFO] [stderr]   --> src/set1/prob6.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn prob6() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hamming_distance`
[INFO] [stderr]   --> src/set1/prob6.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn hamming_distance(v1: &[u8], v2: &[u8]) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ham_d`
[INFO] [stderr]   --> src/set1/prob6.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn ham_d(a: u8, b: u8) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob7`
[INFO] [stderr]  --> src/set1/prob7.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob7() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob8`
[INFO] [stderr]  --> src/set1/prob8.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn prob8() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob9`
[INFO] [stderr]  --> src/set2/prob9.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob9() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob10`
[INFO] [stderr]  --> src/set2/prob10.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob10() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob11`
[INFO] [stderr]  --> src/set2/prob11.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn prob11() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `ecb_or_cbc_oracle`
[INFO] [stderr]  --> src/set2/prob11.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn ecb_or_cbc_oracle(encryptor: &Fn(&mut Vec<u8>) -> Vec<u8>) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rand_encrypt_ecb_or_cbc`
[INFO] [stderr]   --> src/set2/prob11.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn rand_encrypt_ecb_or_cbc(bin: &mut Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prob12`
[INFO] [stderr]  --> src/set2/prob12.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn prob12() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set1`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn set1() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `set2`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn set2() {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     (*boxed_dec).decrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/utils.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     (*boxed_enc).encrypt(&mut buff_in, &mut buff_out, true);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "d321e8cecc776491e04bc862ae3b0b99a1e9b9a7d22fe3d1d5c8f3600a44a9b1"`
[INFO] running `"docker" "rm" "-f" "d321e8cecc776491e04bc862ae3b0b99a1e9b9a7d22fe3d1d5c8f3600a44a9b1"`
[INFO] [stdout] d321e8cecc776491e04bc862ae3b0b99a1e9b9a7d22fe3d1d5c8f3600a44a9b1