[INFO] updating cached repository ralphrecto/cryptopals
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ralphrecto/cryptopals
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ralphrecto/cryptopals" "work/ex/clippy-test-run/sources/stable/gh/ralphrecto/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ralphrecto/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ralphrecto/cryptopals" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ralphrecto/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ralphrecto/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d7cbc0047cb21347cf2782df798aa72494d5ee01
[INFO] sha for GitHub repo ralphrecto/cryptopals: d7cbc0047cb21347cf2782df798aa72494d5ee01
[INFO] validating manifest of ralphrecto/cryptopals 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 ralphrecto/cryptopals 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 ralphrecto/cryptopals
[INFO] finished frobbing ralphrecto/cryptopals
[INFO] frobbed toml for ralphrecto/cryptopals written to work/ex/clippy-test-run/sources/stable/gh/ralphrecto/cryptopals/Cargo.toml
[INFO] started frobbing ralphrecto/cryptopals
[INFO] finished frobbing ralphrecto/cryptopals
[INFO] frobbed toml for ralphrecto/cryptopals written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ralphrecto/cryptopals/Cargo.toml
[INFO] crate ralphrecto/cryptopals 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 ralphrecto/cryptopals against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/ralphrecto/cryptopals:/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] 2de0dcf5ae1e7c6964f1a0cfd6565de0542584c784de434290ed7a7b73ea35bf
[INFO] running `"docker" "start" "-a" "2de0dcf5ae1e7c6964f1a0cfd6565de0542584c784de434290ed7a7b73ea35bf"`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `cryptopals::strutils`
[INFO] [stderr]  --> src/cryptopals/set1.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use cryptopals::strutils;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]  --> src/cryptopals/set1.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn challenge1() -> () {
[INFO] [stderr]   |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:13:21
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn challenge2() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:28:73
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn chi_square_printer(word: &str, keyword_and_keys: &Vec<(String, u8)>) -> () {
[INFO] [stderr]    |                                                                         ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:39:21
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn challenge3() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn challenge4() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn challenge5() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:64:21
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn challenge6() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     return acc_string;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `acc_string`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:63:22
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let tester: u8 = 0b00000001;
[INFO] [stderr]    |                      ^^^^^^^^^^ help: consider: `0b0000_0001`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:65:14
[INFO] [stderr]    |
[INFO] [stderr] 65 |     for i in (0..8) {
[INFO] [stderr]    |              ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 |         ' ' => Some(0.18288462654132653),
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^ help: consider: `0.182_884_626_541_326_53`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |         'E' | 'e' => Some(0.10266650371711405),
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.102_666_503_717_114_05`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 |         'T' | 't' => Some(0.07516998273511516),
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.075_169_982_735_115_16`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 |         'A' | 'a' => Some(0.06532167023346977),
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.065_321_670_233_469_77`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:10:27
[INFO] [stderr]    |
[INFO] [stderr] 10 |         'O' | 'o' => Some(0.06159577254159049),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.061_595_772_541_590_49`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |         'N' | 'n' => Some(0.05712011128985469),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.057_120_111_289_854_69`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:12:27
[INFO] [stderr]    |
[INFO] [stderr] 12 |         'I' | 'i' => Some(0.05668443260048856),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.056_684_432_600_488_56`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:13:27
[INFO] [stderr]    |
[INFO] [stderr] 13 |         'S' | 's' => Some(0.05317005343812784),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.053_170_053_438_127_84`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:14:27
[INFO] [stderr]    |
[INFO] [stderr] 14 |         'R' | 'r' => Some(0.04987908553231180),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.049_879_085_532_311_80`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:15:27
[INFO] [stderr]    |
[INFO] [stderr] 15 |         'H' | 'h' => Some(0.04978563962655234),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.049_785_639_626_552_34`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:16:27
[INFO] [stderr]    |
[INFO] [stderr] 16 |         'L' | 'l' => Some(0.03317547959533063),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.033_175_479_595_330_63`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:17:27
[INFO] [stderr]    |
[INFO] [stderr] 17 |         'D' | 'd' => Some(0.03282923097335889),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.032_829_230_973_358_89`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |         'U' | 'u' => Some(0.02275795359120720),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.022_757_953_591_207_20`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 |         'C' | 'c' => Some(0.02233675963832357),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.022_336_759_638_323_57`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:20:27
[INFO] [stderr]    |
[INFO] [stderr] 20 |         'M' | 'm' => Some(0.02026567834113036),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.020_265_678_341_130_36`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |         'F' | 'f' => Some(0.01983067155219636),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.019_830_671_552_196_36`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 |         'W' | 'w' => Some(0.01703893766467868),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.017_038_937_664_678_68`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:23:27
[INFO] [stderr]    |
[INFO] [stderr] 23 |         'G' | 'g' => Some(0.01624904409178952),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.016_249_044_091_789_52`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:24:27
[INFO] [stderr]    |
[INFO] [stderr] 24 |         'P' | 'p' => Some(0.01504324284647170),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.015_043_242_846_471_70`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:25:27
[INFO] [stderr]    |
[INFO] [stderr] 25 |         'Y' | 'y' => Some(0.01427666624127353),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.014_276_666_241_273_53`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:26:27
[INFO] [stderr]    |
[INFO] [stderr] 26 |         'B' | 'b' => Some(0.01258880743014620),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.012_588_807_430_146_20`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |         'V' | 'v' => Some(0.00796116438442061),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.007_961_164_384_420_61`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:28:27
[INFO] [stderr]    |
[INFO] [stderr] 28 |         'K' | 'k' => Some(0.00560962722644426),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.005_609_627_226_444_26`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:29:27
[INFO] [stderr]    |
[INFO] [stderr] 29 |         'X' | 'x' => Some(0.00140920161949961),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.001_409_201_619_499_61`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:30:27
[INFO] [stderr]    |
[INFO] [stderr] 30 |         'J' | 'j' => Some(0.00097521808184139),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.000_975_218_081_841_39`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:31:27
[INFO] [stderr]    |
[INFO] [stderr] 31 |         'Q' | 'q' => Some(0.00083675498119895),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.000_836_754_981_198_95`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:32:27
[INFO] [stderr]    |
[INFO] [stderr] 32 |         'Z' | 'z' => Some(0.00051284690692656),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.000_512_846_906_926_56`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn cryptomain() -> () {
[INFO] [stderr]    |                 ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn main() -> () {
[INFO] [stderr]    |           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cryptopals::strutils`
[INFO] [stderr]  --> src/cryptopals/set1.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use cryptopals::strutils;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]  --> src/cryptopals/set1.rs:8:21
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn challenge1() -> () {
[INFO] [stderr]   |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:13:21
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn challenge2() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:28:73
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn chi_square_printer(word: &str, keyword_and_keys: &Vec<(String, u8)>) -> () {
[INFO] [stderr]    |                                                                         ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:39:21
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn challenge3() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:45:21
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn challenge4() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:55:21
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn challenge5() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/cryptopals/set1.rs:64:21
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn challenge6() -> () {
[INFO] [stderr]    |                     ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     return acc_string;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `acc_string`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:63:22
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let tester: u8 = 0b00000001;
[INFO] [stderr]    |                      ^^^^^^^^^^ help: consider: `0b0000_0001`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:65:14
[INFO] [stderr]    |
[INFO] [stderr] 65 |     for i in (0..8) {
[INFO] [stderr]    |              ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 |         ' ' => Some(0.18288462654132653),
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^ help: consider: `0.182_884_626_541_326_53`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:7:27
[INFO] [stderr]   |
[INFO] [stderr] 7 |         'E' | 'e' => Some(0.10266650371711405),
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.102_666_503_717_114_05`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 |         'T' | 't' => Some(0.07516998273511516),
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.075_169_982_735_115_16`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:9:27
[INFO] [stderr]   |
[INFO] [stderr] 9 |         'A' | 'a' => Some(0.06532167023346977),
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.065_321_670_233_469_77`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:10:27
[INFO] [stderr]    |
[INFO] [stderr] 10 |         'O' | 'o' => Some(0.06159577254159049),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.061_595_772_541_590_49`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |         'N' | 'n' => Some(0.05712011128985469),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.057_120_111_289_854_69`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:12:27
[INFO] [stderr]    |
[INFO] [stderr] 12 |         'I' | 'i' => Some(0.05668443260048856),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.056_684_432_600_488_56`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:13:27
[INFO] [stderr]    |
[INFO] [stderr] 13 |         'S' | 's' => Some(0.05317005343812784),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.053_170_053_438_127_84`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:14:27
[INFO] [stderr]    |
[INFO] [stderr] 14 |         'R' | 'r' => Some(0.04987908553231180),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.049_879_085_532_311_80`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:15:27
[INFO] [stderr]    |
[INFO] [stderr] 15 |         'H' | 'h' => Some(0.04978563962655234),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.049_785_639_626_552_34`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:16:27
[INFO] [stderr]    |
[INFO] [stderr] 16 |         'L' | 'l' => Some(0.03317547959533063),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.033_175_479_595_330_63`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:17:27
[INFO] [stderr]    |
[INFO] [stderr] 17 |         'D' | 'd' => Some(0.03282923097335889),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.032_829_230_973_358_89`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |         'U' | 'u' => Some(0.02275795359120720),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.022_757_953_591_207_20`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 |         'C' | 'c' => Some(0.02233675963832357),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.022_336_759_638_323_57`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:20:27
[INFO] [stderr]    |
[INFO] [stderr] 20 |         'M' | 'm' => Some(0.02026567834113036),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.020_265_678_341_130_36`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |         'F' | 'f' => Some(0.01983067155219636),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.019_830_671_552_196_36`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 |         'W' | 'w' => Some(0.01703893766467868),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.017_038_937_664_678_68`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:23:27
[INFO] [stderr]    |
[INFO] [stderr] 23 |         'G' | 'g' => Some(0.01624904409178952),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.016_249_044_091_789_52`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:24:27
[INFO] [stderr]    |
[INFO] [stderr] 24 |         'P' | 'p' => Some(0.01504324284647170),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.015_043_242_846_471_70`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:25:27
[INFO] [stderr]    |
[INFO] [stderr] 25 |         'Y' | 'y' => Some(0.01427666624127353),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.014_276_666_241_273_53`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:26:27
[INFO] [stderr]    |
[INFO] [stderr] 26 |         'B' | 'b' => Some(0.01258880743014620),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.012_588_807_430_146_20`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:27:27
[INFO] [stderr]    |
[INFO] [stderr] 27 |         'V' | 'v' => Some(0.00796116438442061),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.007_961_164_384_420_61`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:28:27
[INFO] [stderr]    |
[INFO] [stderr] 28 |         'K' | 'k' => Some(0.00560962722644426),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.005_609_627_226_444_26`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:29:27
[INFO] [stderr]    |
[INFO] [stderr] 29 |         'X' | 'x' => Some(0.00140920161949961),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.001_409_201_619_499_61`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:30:27
[INFO] [stderr]    |
[INFO] [stderr] 30 |         'J' | 'j' => Some(0.00097521808184139),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.000_975_218_081_841_39`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:31:27
[INFO] [stderr]    |
[INFO] [stderr] 31 |         'Q' | 'q' => Some(0.00083675498119895),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.000_836_754_981_198_95`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:32:27
[INFO] [stderr]    |
[INFO] [stderr] 32 |         'Z' | 'z' => Some(0.00051284690692656),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider: `0.000_512_846_906_926_56`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn cryptomain() -> () {
[INFO] [stderr]    |                 ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/main.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn main() -> () {
[INFO] [stderr]    |           ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]   --> src/cryptopals/set1.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let v1: Vec<u8> = hexutils::str_to_bytevec("this is a test");
[INFO] [stderr]    |         ^^ help: consider using `_v1` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> src/cryptopals/set1.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let v2: Vec<u8> = hexutils::str_to_bytevec("wokka wokka!!!");
[INFO] [stderr]    |         ^^ help: consider using `_v2` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]   --> src/cryptopals/set1.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let v1: Vec<u8> = hexutils::str_to_bytevec("this is a test");
[INFO] [stderr]    |         ^^ help: consider using `_v1` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v2`
[INFO] [stderr]   --> src/cryptopals/set1.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let v2: Vec<u8> = hexutils::str_to_bytevec("wokka wokka!!!");
[INFO] [stderr]    |         ^^ help: consider using `_v2` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge1`
[INFO] [stderr]  --> src/cryptopals/set1.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn challenge1() -> () {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge2`
[INFO] [stderr]   --> src/cryptopals/set1.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn challenge2() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chi_square_printer`
[INFO] [stderr]   --> src/cryptopals/set1.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn chi_square_printer(word: &str, keyword_and_keys: &Vec<(String, u8)>) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge3`
[INFO] [stderr]   --> src/cryptopals/set1.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn challenge3() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge4`
[INFO] [stderr]   --> src/cryptopals/set1.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn challenge4() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge5`
[INFO] [stderr]   --> src/cryptopals/set1.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn challenge5() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_nibble`
[INFO] [stderr]  --> src/cryptopals/hexutils.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn hex_to_nibble(s: char) -> u8 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `nibble_to_hex`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn nibble_to_hex(b: u8) -> char {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hexstr_to_bytevec`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn hexstr_to_bytevec(s: &str) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytevec_to_hexstr`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn bytevec_to_hexstr(v: &Vec<u8>) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_set_bits`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn count_set_bits(v: u8) -> u8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `letter_freq`
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn letter_freq(c: char) -> Option<f64> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chi_square`
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn chi_square(text: &str) -> Option<f64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_file`
[INFO] [stderr]  --> src/cryptopals/fileutils.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn read_file(pathstr: &str) -> io::Result<String> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_lines`
[INFO] [stderr]   --> src/cryptopals/fileutils.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn read_lines(pathstr: &str) -> io::Result<Vec<String>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytexor_keygen`
[INFO] [stderr]  --> src/cryptopals/xorutils.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn bytexor_keygen(s: &str) -> Vec<(String, u8)> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rolling_xor`
[INFO] [stderr]   --> src/cryptopals/xorutils.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn rolling_xor(v: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hamming_dist`
[INFO] [stderr]  --> src/cryptopals/strutils.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn hamming_dist(v1: &Vec<u8>, v2: &Vec<u8>) -> u32 {
[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/cryptopals/set1.rs:28:53
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn chi_square_printer(word: &str, keyword_and_keys: &Vec<(String, u8)>) -> () {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^ help: change this to: `&[(String, 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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/cryptopals/set1.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 | /         match freq_analysis::chi_square(keyword) {
[INFO] [stderr] 31 | |             Some(score) => {
[INFO] [stderr] 32 | |                 println!("word: {}, keyword: {}, key: {:#x}, score: {}", word, keyword, key, score)
[INFO] [stderr] 33 | |             },
[INFO] [stderr] 34 | |             None => { }
[INFO] [stderr] 35 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 30 |         if let Some(score) = freq_analysis::chi_square(keyword) {
[INFO] [stderr] 31 |     println!("word: {}, keyword: {}, key: {:#x}, score: {}", word, keyword, key, score)
[INFO] [stderr] 32 | }
[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/cryptopals/hexutils.rs:52:29
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn bytevec_to_hexstr(v: &Vec<u8>) -> String {
[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: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:14:27
[INFO] [stderr]    |
[INFO] [stderr] 14 |         'R' | 'r' => Some(0.04987908553231180),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.049_879_085_532_311_8`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::excessive_precision)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |         'U' | 'u' => Some(0.02275795359120720),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.022_757_953_591_207_2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:24:27
[INFO] [stderr]    |
[INFO] [stderr] 24 |         'P' | 'p' => Some(0.01504324284647170),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.015_043_242_846_471_7`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:26:27
[INFO] [stderr]    |
[INFO] [stderr] 26 |         'B' | 'b' => Some(0.01258880743014620),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.012_588_807_430_146_2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:62:28
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 Some(f) => (length as f64) * f,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^ help: try: `f64::from(length)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:65:14
[INFO] [stderr]    |
[INFO] [stderr] 65 |             (count as f64 - expectation_c).powf(2.0) / expectation_c
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: try: `f64::from(count)`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/cryptopals/fileutils.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |         s.split("\n")
[INFO] [stderr]    |                 ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[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/cryptopals/xorutils.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn rolling_xor(v: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/cryptopals/xorutils.rs:19:38
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn rolling_xor(v: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/cryptopals/strutils.rs:6:25
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn hamming_dist(v1: &Vec<u8>, v2: &Vec<u8>) -> u32 {
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/cryptopals/strutils.rs:6:39
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn hamming_dist(v1: &Vec<u8>, v2: &Vec<u8>) -> u32 {
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/cryptopals/strutils.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             hexutils::count_set_bits(b1 ^ b2) as u32
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(hexutils::count_set_bits(b1 ^ b2))`
[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: function is never used: `challenge1`
[INFO] [stderr]  --> src/cryptopals/set1.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn challenge1() -> () {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge2`
[INFO] [stderr]   --> src/cryptopals/set1.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn challenge2() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chi_square_printer`
[INFO] [stderr]   --> src/cryptopals/set1.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn chi_square_printer(word: &str, keyword_and_keys: &Vec<(String, u8)>) -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge3`
[INFO] [stderr]   --> src/cryptopals/set1.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn challenge3() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge4`
[INFO] [stderr]   --> src/cryptopals/set1.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn challenge4() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge5`
[INFO] [stderr]   --> src/cryptopals/set1.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn challenge5() -> () {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_nibble`
[INFO] [stderr]  --> src/cryptopals/hexutils.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn hex_to_nibble(s: char) -> u8 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `nibble_to_hex`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn nibble_to_hex(b: u8) -> char {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hexstr_to_bytevec`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn hexstr_to_bytevec(s: &str) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytevec_to_hexstr`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn bytevec_to_hexstr(v: &Vec<u8>) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_set_bits`
[INFO] [stderr]   --> src/cryptopals/hexutils.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn count_set_bits(v: u8) -> u8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `letter_freq`
[INFO] [stderr]  --> src/cryptopals/freq_analysis.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn letter_freq(c: char) -> Option<f64> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chi_square`
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:46:1
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn chi_square(text: &str) -> Option<f64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_file`
[INFO] [stderr]  --> src/cryptopals/fileutils.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn read_file(pathstr: &str) -> io::Result<String> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_lines`
[INFO] [stderr]   --> src/cryptopals/fileutils.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn read_lines(pathstr: &str) -> io::Result<Vec<String>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bytexor_keygen`
[INFO] [stderr]  --> src/cryptopals/xorutils.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn bytexor_keygen(s: &str) -> Vec<(String, u8)> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rolling_xor`
[INFO] [stderr]   --> src/cryptopals/xorutils.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn rolling_xor(v: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hamming_dist`
[INFO] [stderr]  --> src/cryptopals/strutils.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn hamming_dist(v1: &Vec<u8>, v2: &Vec<u8>) -> u32 {
[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/cryptopals/set1.rs:28:53
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn chi_square_printer(word: &str, keyword_and_keys: &Vec<(String, u8)>) -> () {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^ help: change this to: `&[(String, 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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/cryptopals/set1.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 | /         match freq_analysis::chi_square(keyword) {
[INFO] [stderr] 31 | |             Some(score) => {
[INFO] [stderr] 32 | |                 println!("word: {}, keyword: {}, key: {:#x}, score: {}", word, keyword, key, score)
[INFO] [stderr] 33 | |             },
[INFO] [stderr] 34 | |             None => { }
[INFO] [stderr] 35 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 30 |         if let Some(score) = freq_analysis::chi_square(keyword) {
[INFO] [stderr] 31 |     println!("word: {}, keyword: {}, key: {:#x}, score: {}", word, keyword, key, score)
[INFO] [stderr] 32 | }
[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/cryptopals/hexutils.rs:52:29
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub fn bytevec_to_hexstr(v: &Vec<u8>) -> String {
[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: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:14:27
[INFO] [stderr]    |
[INFO] [stderr] 14 |         'R' | 'r' => Some(0.04987908553231180),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.049_879_085_532_311_8`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::excessive_precision)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |         'U' | 'u' => Some(0.02275795359120720),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.022_757_953_591_207_2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:24:27
[INFO] [stderr]    |
[INFO] [stderr] 24 |         'P' | 'p' => Some(0.01504324284647170),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.015_043_242_846_471_7`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:26:27
[INFO] [stderr]    |
[INFO] [stderr] 26 |         'B' | 'b' => Some(0.01258880743014620),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.012_588_807_430_146_2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:62:28
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 Some(f) => (length as f64) * f,
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^ help: try: `f64::from(length)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/cryptopals/freq_analysis.rs:65:14
[INFO] [stderr]    |
[INFO] [stderr] 65 |             (count as f64 - expectation_c).powf(2.0) / expectation_c
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: try: `f64::from(count)`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/cryptopals/fileutils.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |         s.split("\n")
[INFO] [stderr]    |                 ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[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/cryptopals/xorutils.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn rolling_xor(v: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/cryptopals/xorutils.rs:19:38
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn rolling_xor(v: &Vec<u8>, key: &Vec<u8>) -> Vec<u8> {
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/cryptopals/strutils.rs:6:25
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn hamming_dist(v1: &Vec<u8>, v2: &Vec<u8>) -> u32 {
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> src/cryptopals/strutils.rs:6:39
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn hamming_dist(v1: &Vec<u8>, v2: &Vec<u8>) -> u32 {
[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: casting u8 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/cryptopals/strutils.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             hexutils::count_set_bits(b1 ^ b2) as u32
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(hexutils::count_set_bits(b1 ^ b2))`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "2de0dcf5ae1e7c6964f1a0cfd6565de0542584c784de434290ed7a7b73ea35bf"`
[INFO] running `"docker" "rm" "-f" "2de0dcf5ae1e7c6964f1a0cfd6565de0542584c784de434290ed7a7b73ea35bf"`
[INFO] [stdout] 2de0dcf5ae1e7c6964f1a0cfd6565de0542584c784de434290ed7a7b73ea35bf