[INFO] cloning repository https://github.com/Creator13/AdventOfCode2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Creator13/AdventOfCode2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCreator13%2FAdventOfCode2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCreator13%2FAdventOfCode2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52916411067a2488b6f81a939259735092b8cfc1
[INFO] linting Creator13/AdventOfCode2021 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCreator13%2FAdventOfCode2021" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Creator13/AdventOfCode2021
[INFO] finished tweaking git repo https://github.com/Creator13/AdventOfCode2021
[INFO] tweaked toml for git repo https://github.com/Creator13/AdventOfCode2021 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Creator13/AdventOfCode2021 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Creator13/AdventOfCode2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d96f32af16680cd739b31a199e607a4b3941bd6446f5bcd1d9143e76d902904b
[INFO] running `Command { std: "docker" "start" "-a" "d96f32af16680cd739b31a199e607a4b3941bd6446f5bcd1d9143e76d902904b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d96f32af16680cd739b31a199e607a4b3941bd6446f5bcd1d9143e76d902904b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d96f32af16680cd739b31a199e607a4b3941bd6446f5bcd1d9143e76d902904b", kill_on_drop: false }`
[INFO] [stdout] d96f32af16680cd739b31a199e607a4b3941bd6446f5bcd1d9143e76d902904b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b075295f9fab2c2db1398de1b7519b6b219fa7930d87af78c51ed418da67ef5
[INFO] running `Command { std: "docker" "start" "-a" "2b075295f9fab2c2db1398de1b7519b6b219fa7930d87af78c51ed418da67ef5", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `step`
[INFO] [stdout]   --> src/challenge11.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     for step in 0..steps {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_step`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OutputLine` is never constructed
[INFO] [stdout]   --> src/challenge8.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct OutputLine {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_at` and `reset_flashed` are never used
[INFO] [stdout]   --> src/challenge11.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Grid {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout]  9 |     pub fn get_at(&self, x: usize, y: usize) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn reset_flashed(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge1.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn count_increments(nums: &Vec<i32>) -> i32 {
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 36 - pub fn count_increments(nums: &Vec<i32>) -> i32 {
[INFO] [stdout] 36 + pub fn count_increments(nums: &[i32]) -> i32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge1.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn count_increments_windows(nums: &Vec<i32>) -> i32 {
[INFO] [stdout]    |                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 43 - pub fn count_increments_windows(nums: &Vec<i32>) -> i32 {
[INFO] [stdout] 43 + pub fn count_increments_windows(nums: &[i32]) -> i32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge2.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn map_to_commands(input: &Vec<String>) -> Vec<Command> {
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 41 - fn map_to_commands(input: &Vec<String>) -> Vec<Command> {
[INFO] [stdout] 41 + fn map_to_commands(input: &[String]) -> Vec<Command> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `repeat().take()` can be written more concisely
[INFO] [stdout]    --> src/challenge3.rs:275:33
[INFO] [stdout]     |
[INFO] [stdout] 275 |     let mut counter: Vec<u32> = std::iter::repeat(0).take(bit_count).collect();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(0, bit_count)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
[INFO] [stdout]     = note: `#[warn(clippy::manual_repeat_n)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `repeat().take()` can be written more concisely
[INFO] [stdout]    --> src/challenge3.rs:295:33
[INFO] [stdout]     |
[INFO] [stdout] 295 |     let mut counter: Vec<u32> = std::iter::repeat(0).take(bit_count).collect();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(0, bit_count)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/challenge4.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |             None => return,
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: replace `return` with a unit value
[INFO] [stdout]     |
[INFO] [stdout] 256 -             None => return,
[INFO] [stdout] 256 +             None => (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: equality checks against true are unnecessary
[INFO] [stdout]    --> src/challenge4.rs:264:49
[INFO] [stdout]     |
[INFO] [stdout] 264 |             .any(|chunk| chunk.iter().all(|val| *val == true));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^ help: try: `*val`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stdout]     = note: `#[warn(clippy::bool_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `repeat().take()` can be written more concisely
[INFO] [stdout]    --> src/challenge4.rs:306:23
[INFO] [stdout]     |
[INFO] [stdout] 306 |         let markers = std::iter::repeat(false).take(values.len()).collect();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(false, values.len())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/challenge4.rs:334:5
[INFO] [stdout]     |
[INFO] [stdout] 334 |     return (draws, boards);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 334 -     return (draws, boards);
[INFO] [stdout] 334 +     (draws, boards)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this manual char comparison can be written more succinctly
[INFO] [stdout]    --> src/challenge4.rs:326:16
[INFO] [stdout]     |
[INFO] [stdout] 326 |         .split(|char| char == ',')
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^ help: consider using a `char`: `','`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_pattern_char_comparison
[INFO] [stdout]     = note: `#[warn(clippy::manual_pattern_char_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/challenge4.rs:331:14
[INFO] [stdout]     |
[INFO] [stdout] 331 |         .map(|board_slice| Board::from(board_slice))
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Board::from`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout]     = note: `#[warn(clippy::redundant_closure)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
[INFO] [stdout]    --> src/challenge4.rs:337:54
[INFO] [stdout]     |
[INFO] [stdout] 337 | pub fn first_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 337 - pub fn first_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout] 337 + pub fn first_winning_board<'a>(draws: &[u8], boards: &'a mut [Board]) -> (&'a Board, u8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
[INFO] [stdout]    --> src/challenge4.rs:354:49
[INFO] [stdout]     |
[INFO] [stdout] 354 | fn last_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 354 - fn last_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout] 354 + fn last_winning_board<'a>(draws: &[u8], boards: &'a mut [Board]) -> (&'a Board, u8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_x` and `end_x` manually
[INFO] [stdout]    --> src/challenge5.rs:120:17
[INFO] [stdout]     |
[INFO] [stdout] 120 | /                 let tmp = start_x;
[INFO] [stdout] 121 | |                 start_x = end_x;
[INFO] [stdout] 122 | |                 end_x = tmp;
[INFO] [stdout]     | |____________________________^ help: try: `std::mem::swap(&mut start_x, &mut end_x);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout]     = note: `#[warn(clippy::manual_swap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `visits`
[INFO] [stdout]    --> src/challenge5.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |             for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]     = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 125 -             for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout] 125 +             for <item> in visits.iter_mut().take(end_x + width * y + 1).skip((start_x + width * y)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_y` and `end_y` manually
[INFO] [stdout]    --> src/challenge5.rs:134:17
[INFO] [stdout]     |
[INFO] [stdout] 134 | /                 let tmp = start_y;
[INFO] [stdout] 135 | |                 start_y = end_y;
[INFO] [stdout] 136 | |                 end_y = tmp;
[INFO] [stdout]     | |____________________________^ help: try: `std::mem::swap(&mut start_y, &mut end_y);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/challenge5.rs:159:17
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 for x in min(start_x, end_x)..=max(start_x, end_x) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, x) in (min(start_y, end_y)..).zip((min(start_x, end_x)..=max(start_x, end_x)))`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout]     = note: `#[warn(clippy::explicit_counter_loop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/challenge5.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |                 for x in (min(start_x, end_x)..=max(start_x, end_x)).rev() {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, x) in (min(start_y, end_y)..).zip((min(start_x, end_x)..=max(start_x, end_x)).rev())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_x` and `end_x` manually
[INFO] [stdout]    --> src/challenge5.rs:176:21
[INFO] [stdout]     |
[INFO] [stdout] 176 | /                     let tmp = start_x;
[INFO] [stdout] 177 | |                     start_x = end_x;
[INFO] [stdout] 178 | |                     end_x = tmp;
[INFO] [stdout]     | |________________________________^ help: try: `std::mem::swap(&mut start_x, &mut end_x);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `visits`
[INFO] [stdout]    --> src/challenge5.rs:181:26
[INFO] [stdout]     |
[INFO] [stdout] 181 |                 for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 181 -                 for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout] 181 +                 for <item> in visits.iter_mut().take(end_x + width * y + 1).skip((start_x + width * y)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_y` and `end_y` manually
[INFO] [stdout]    --> src/challenge5.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 | /                     let tmp = start_y;
[INFO] [stdout] 191 | |                     start_y = end_y;
[INFO] [stdout] 192 | |                     end_y = tmp;
[INFO] [stdout]     | |________________________________^ help: try: `std::mem::swap(&mut start_y, &mut end_y);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge6.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn challenge1(input: &String, days: usize) -> usize {
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 27 - pub fn challenge1(input: &String, days: usize) -> usize {
[INFO] [stdout] 27 + pub fn challenge1(input: &str, days: usize) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge6.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn challenge2(input: &String, days: usize) -> u64 {
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 39 - pub fn challenge2(input: &String, days: usize) -> u64 {
[INFO] [stdout] 39 + pub fn challenge2(input: &str, days: usize) -> u64 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge8.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn parse_line(input: &String) -> InputLine {
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 15 - fn parse_line(input: &String) -> InputLine {
[INFO] [stdout] 15 + fn parse_line(input: &str) -> InputLine {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/challenge8.rs:45:31
[INFO] [stdout]    |
[INFO] [stdout] 45 |                   .filter(|seg| match seg.len() {
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 46 | |                     2 | 3 | 4 | 7 => true,
[INFO] [stdout] 47 | |                     _ => false,
[INFO] [stdout] 48 | |                 })
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 45 -                 .filter(|seg| match seg.len() {
[INFO] [stdout] 46 -                     2 | 3 | 4 | 7 => true,
[INFO] [stdout] 47 -                     _ => false,
[INFO] [stdout] 48 -                 })
[INFO] [stdout] 45 +                 .filter(|seg| matches!(seg.len(), 2 | 3 | 4 | 7))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/challenge8.rs:55:34
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let input = input.iter().map(|val| parse_line(val)).collect::<Vec<_>>();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `parse_line`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/challenge9.rs:76:15
[INFO] [stdout]    |
[INFO] [stdout] 76 |         while open_list.len() > 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!open_list.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/challenge9.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 | /                 if left < 9 {
[INFO] [stdout] 84 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 85 | |                         open_list.push_back(coords)
[INFO] [stdout] 86 | |                     }
[INFO] [stdout] 87 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 83 ~                 if left < 9
[INFO] [stdout] 84 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 85 |                         open_list.push_back(coords)
[INFO] [stdout] 86 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/challenge9.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 | /                 if right < 9 {
[INFO] [stdout] 93 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 94 | |                         open_list.push_back(coords)
[INFO] [stdout] 95 | |                     }
[INFO] [stdout] 96 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 92 ~                 if right < 9
[INFO] [stdout] 93 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 94 |                         open_list.push_back(coords)
[INFO] [stdout] 95 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/challenge9.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 | /                 if up < 9 {
[INFO] [stdout] 102 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 103 | |                         open_list.push_back(coords)
[INFO] [stdout] 104 | |                     }
[INFO] [stdout] 105 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 101 ~                 if up < 9
[INFO] [stdout] 102 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 103 |                         open_list.push_back(coords)
[INFO] [stdout] 104 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/challenge9.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 | /                 if down < 9 {
[INFO] [stdout] 111 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 112 | |                         open_list.push_back(coords)
[INFO] [stdout] 113 | |                     }
[INFO] [stdout] 114 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 110 ~                 if down < 9
[INFO] [stdout] 111 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 112 |                         open_list.push_back(coords)
[INFO] [stdout] 113 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/challenge10.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |         if stack.len() == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `stack.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/challenge11.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 if !(n_y == y && n_x == x) && !self.flashed[self.get_index(n_x, n_y)] {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!(self.flashed[self.get_index(n_x, n_y)] || n_y == y && n_x == x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/challenge11.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let mut grid = parse(&input);
[INFO] [stdout]    |                          ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/challenge11.rs:115:15
[INFO] [stdout]     |
[INFO] [stdout] 115 |         while unflashed_in_grid.len() > 0 {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!unflashed_in_grid.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/challenge11.rs:143:26
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut grid = parse(&input);
[INFO] [stdout]     |                          ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/challenge11.rs:154:15
[INFO] [stdout]     |
[INFO] [stdout] 154 |         while unflashed_in_grid.len() > 0 {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!unflashed_in_grid.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step`
[INFO] [stdout]   --> src/challenge11.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |     for step in 0..steps {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_step`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OutputLine` is never constructed
[INFO] [stdout]   --> src/challenge8.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct OutputLine {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_at` and `reset_flashed` are never used
[INFO] [stdout]   --> src/challenge11.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Grid {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout]  9 |     pub fn get_at(&self, x: usize, y: usize) -> u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn reset_flashed(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: items after a test module
[INFO] [stdout]   --> src/challenge1.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | mod tests_increments {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 | pub fn count_increments(nums: &Vec<i32>) -> i32 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 | pub fn count_increments_windows(nums: &Vec<i32>) -> i32 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#items_after_test_module
[INFO] [stdout]    = note: `#[warn(clippy::items_after_test_module)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge1.rs:36:31
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn count_increments(nums: &Vec<i32>) -> i32 {
[INFO] [stdout]    |                               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout]    = note: `#[warn(clippy::ptr_arg)]` on by default
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 36 - pub fn count_increments(nums: &Vec<i32>) -> i32 {
[INFO] [stdout] 36 + pub fn count_increments(nums: &[i32]) -> i32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge1.rs:43:39
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn count_increments_windows(nums: &Vec<i32>) -> i32 {
[INFO] [stdout]    |                                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 43 - pub fn count_increments_windows(nums: &Vec<i32>) -> i32 {
[INFO] [stdout] 43 + pub fn count_increments_windows(nums: &[i32]) -> i32 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: items after a test module
[INFO] [stdout]   --> src/challenge2.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 | enum Command {
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 | fn map_to_commands(input: &Vec<String>) -> Vec<Command> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 | pub fn move_directly(input: &Vec<String>) -> i32 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 | pub fn move_by_aim(input: &Vec<String>) -> i32 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#items_after_test_module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge2.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn map_to_commands(input: &Vec<String>) -> Vec<Command> {
[INFO] [stdout]    |                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 41 - fn map_to_commands(input: &Vec<String>) -> Vec<Command> {
[INFO] [stdout] 41 + fn map_to_commands(input: &[String]) -> Vec<Command> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `repeat().take()` can be written more concisely
[INFO] [stdout]    --> src/challenge3.rs:275:33
[INFO] [stdout]     |
[INFO] [stdout] 275 |     let mut counter: Vec<u32> = std::iter::repeat(0).take(bit_count).collect();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(0, bit_count)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
[INFO] [stdout]     = note: `#[warn(clippy::manual_repeat_n)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `repeat().take()` can be written more concisely
[INFO] [stdout]    --> src/challenge3.rs:295:33
[INFO] [stdout]     |
[INFO] [stdout] 295 |     let mut counter: Vec<u32> = std::iter::repeat(0).take(bit_count).collect();
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(0, bit_count)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `repeat().take()` can be written more concisely
[INFO] [stdout]   --> src/challenge4.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let markers = std::iter::repeat(false).take(values.len()).collect();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(false, values.len())`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/challenge4.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         assert_eq!(board.wins(), true);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 95 -         assert_eq!(board.wins(), true);
[INFO] [stdout] 95 +         assert!(board.wins());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/challenge4.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         assert_eq!(board.wins(), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 109 -         assert_eq!(board.wins(), true);
[INFO] [stdout] 109 +         assert!(board.wins());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]    --> src/challenge4.rs:123:37
[INFO] [stdout]     |
[INFO] [stdout] 123 |         assert_eq!(board.summary(), 22 + 13 + 17 + 0 + 8 + 23 + 24 + 9 + 14 + 7 + 6 + 10 + 3 + 5 + 1 + 20);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^ help: consider reducing it to: `(22 + 13 + 17)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stdout]     = note: `#[warn(clippy::identity_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/challenge4.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         assert_eq!(board.wins(), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 137 -         assert_eq!(board.wins(), false);
[INFO] [stdout] 137 +         assert!(!board.wins());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/challenge4.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         assert_eq!(board.wins(), true);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 154 -         assert_eq!(board.wins(), true);
[INFO] [stdout] 154 +         assert!(board.wins());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/challenge4.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         assert_eq!(board.wins(), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 172 -         assert_eq!(board.wins(), false);
[INFO] [stdout] 172 +         assert!(!board.wins());
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/challenge4.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |             None => return,
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout]     = note: `#[warn(clippy::needless_return)]` on by default
[INFO] [stdout] help: replace `return` with a unit value
[INFO] [stdout]     |
[INFO] [stdout] 256 -             None => return,
[INFO] [stdout] 256 +             None => (),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: equality checks against true are unnecessary
[INFO] [stdout]    --> src/challenge4.rs:264:49
[INFO] [stdout]     |
[INFO] [stdout] 264 |             .any(|chunk| chunk.iter().all(|val| *val == true));
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^ help: try: `*val`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_comparison
[INFO] [stdout]     = note: `#[warn(clippy::bool_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `repeat().take()` can be written more concisely
[INFO] [stdout]    --> src/challenge4.rs:306:23
[INFO] [stdout]     |
[INFO] [stdout] 306 |         let markers = std::iter::repeat(false).take(values.len()).collect();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `repeat_n()` instead: `std::iter::repeat_n(false, values.len())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_repeat_n
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/challenge4.rs:334:5
[INFO] [stdout]     |
[INFO] [stdout] 334 |     return (draws, boards);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stdout] help: remove `return`
[INFO] [stdout]     |
[INFO] [stdout] 334 -     return (draws, boards);
[INFO] [stdout] 334 +     (draws, boards)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this manual char comparison can be written more succinctly
[INFO] [stdout]    --> src/challenge4.rs:326:16
[INFO] [stdout]     |
[INFO] [stdout] 326 |         .split(|char| char == ',')
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^ help: consider using a `char`: `','`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_pattern_char_comparison
[INFO] [stdout]     = note: `#[warn(clippy::manual_pattern_char_comparison)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/challenge4.rs:331:14
[INFO] [stdout]     |
[INFO] [stdout] 331 |         .map(|board_slice| Board::from(board_slice))
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Board::from`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout]     = note: `#[warn(clippy::redundant_closure)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
[INFO] [stdout]    --> src/challenge4.rs:337:54
[INFO] [stdout]     |
[INFO] [stdout] 337 | pub fn first_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 337 - pub fn first_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout] 337 + pub fn first_winning_board<'a>(draws: &[u8], boards: &'a mut [Board]) -> (&'a Board, u8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&mut Vec` instead of `&mut [_]` involves a new object where a slice will do
[INFO] [stdout]    --> src/challenge4.rs:354:49
[INFO] [stdout]     |
[INFO] [stdout] 354 | fn last_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]     |
[INFO] [stdout] 354 - fn last_winning_board<'a>(draws: &[u8], boards: &'a mut Vec<Board>) -> (&'a Board, u8) {
[INFO] [stdout] 354 + fn last_winning_board<'a>(draws: &[u8], boards: &'a mut [Board]) -> (&'a Board, u8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_x` and `end_x` manually
[INFO] [stdout]    --> src/challenge5.rs:120:17
[INFO] [stdout]     |
[INFO] [stdout] 120 | /                 let tmp = start_x;
[INFO] [stdout] 121 | |                 start_x = end_x;
[INFO] [stdout] 122 | |                 end_x = tmp;
[INFO] [stdout]     | |____________________________^ help: try: `std::mem::swap(&mut start_x, &mut end_x);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout]     = note: `#[warn(clippy::manual_swap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `visits`
[INFO] [stdout]    --> src/challenge5.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |             for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]     = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 125 -             for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout] 125 +             for <item> in visits.iter_mut().take(end_x + width * y + 1).skip((start_x + width * y)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_y` and `end_y` manually
[INFO] [stdout]    --> src/challenge5.rs:134:17
[INFO] [stdout]     |
[INFO] [stdout] 134 | /                 let tmp = start_y;
[INFO] [stdout] 135 | |                 start_y = end_y;
[INFO] [stdout] 136 | |                 end_y = tmp;
[INFO] [stdout]     | |____________________________^ help: try: `std::mem::swap(&mut start_y, &mut end_y);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/challenge5.rs:159:17
[INFO] [stdout]     |
[INFO] [stdout] 159 |                 for x in min(start_x, end_x)..=max(start_x, end_x) {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, x) in (min(start_y, end_y)..).zip((min(start_x, end_x)..=max(start_x, end_x)))`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout]     = note: `#[warn(clippy::explicit_counter_loop)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the variable `y` is used as a loop counter
[INFO] [stdout]    --> src/challenge5.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |                 for x in (min(start_x, end_x)..=max(start_x, end_x)).rev() {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `for (y, x) in (min(start_y, end_y)..).zip((min(start_x, end_x)..=max(start_x, end_x)).rev())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_x` and `end_x` manually
[INFO] [stdout]    --> src/challenge5.rs:176:21
[INFO] [stdout]     |
[INFO] [stdout] 176 | /                     let tmp = start_x;
[INFO] [stdout] 177 | |                     start_x = end_x;
[INFO] [stdout] 178 | |                     end_x = tmp;
[INFO] [stdout]     | |________________________________^ help: try: `std::mem::swap(&mut start_x, &mut end_x);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `visits`
[INFO] [stdout]    --> src/challenge5.rs:181:26
[INFO] [stdout]     |
[INFO] [stdout] 181 |                 for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 181 -                 for i in (start_x + width * y)..=(end_x + width * y) {
[INFO] [stdout] 181 +                 for <item> in visits.iter_mut().take(end_x + width * y + 1).skip((start_x + width * y)) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are swapping `start_y` and `end_y` manually
[INFO] [stdout]    --> src/challenge5.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 | /                     let tmp = start_y;
[INFO] [stdout] 191 | |                     start_y = end_y;
[INFO] [stdout] 192 | |                     end_y = tmp;
[INFO] [stdout]     | |________________________________^ help: try: `std::mem::swap(&mut start_y, &mut end_y);`
[INFO] [stdout]     |
[INFO] [stdout]     = note: or maybe you should use `std::mem::replace`?
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: items after a test module
[INFO] [stdout]   --> src/challenge6.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 | pub fn challenge1(input: &String, days: usize) -> usize {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 | pub fn challenge2(input: &String, days: usize) -> u64 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#items_after_test_module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge6.rs:27:26
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn challenge1(input: &String, days: usize) -> usize {
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 27 - pub fn challenge1(input: &String, days: usize) -> usize {
[INFO] [stdout] 27 + pub fn challenge1(input: &str, days: usize) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge6.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn challenge2(input: &String, days: usize) -> u64 {
[INFO] [stdout]    |                          ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 39 - pub fn challenge2(input: &String, days: usize) -> u64 {
[INFO] [stdout] 39 + pub fn challenge2(input: &str, days: usize) -> u64 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: items after a test module
[INFO] [stdout]   --> src/challenge7.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 | use std::cmp;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 29 |
[INFO] [stdout] 30 | pub fn challenge1(input: &[i32]) -> i32 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 | pub fn challenge2(input: &[i32]) -> i32 {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#items_after_test_module
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/challenge8.rs:15:22
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn parse_line(input: &String) -> InputLine {
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stdout] help: change this to
[INFO] [stdout]    |
[INFO] [stdout] 15 - fn parse_line(input: &String) -> InputLine {
[INFO] [stdout] 15 + fn parse_line(input: &str) -> InputLine {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]   --> src/challenge8.rs:45:31
[INFO] [stdout]    |
[INFO] [stdout] 45 |                   .filter(|seg| match seg.len() {
[INFO] [stdout]    |  _______________________________^
[INFO] [stdout] 46 | |                     2 | 3 | 4 | 7 => true,
[INFO] [stdout] 47 | |                     _ => false,
[INFO] [stdout] 48 | |                 })
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]    = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]    |
[INFO] [stdout] 45 -                 .filter(|seg| match seg.len() {
[INFO] [stdout] 46 -                     2 | 3 | 4 | 7 => true,
[INFO] [stdout] 47 -                     _ => false,
[INFO] [stdout] 48 -                 })
[INFO] [stdout] 45 +                 .filter(|seg| matches!(seg.len(), 2 | 3 | 4 | 7))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/challenge8.rs:55:34
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let input = input.iter().map(|val| parse_line(val)).collect::<Vec<_>>();
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `parse_line`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/challenge9.rs:76:15
[INFO] [stdout]    |
[INFO] [stdout] 76 |         while open_list.len() > 0 {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!open_list.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout]    = note: `#[warn(clippy::len_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/challenge9.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 | /                 if left < 9 {
[INFO] [stdout] 84 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 85 | |                         open_list.push_back(coords)
[INFO] [stdout] 86 | |                     }
[INFO] [stdout] 87 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout]    = note: `#[warn(clippy::collapsible_if)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 83 ~                 if left < 9
[INFO] [stdout] 84 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 85 |                         open_list.push_back(coords)
[INFO] [stdout] 86 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]   --> src/challenge9.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 | /                 if right < 9 {
[INFO] [stdout] 93 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 94 | |                         open_list.push_back(coords)
[INFO] [stdout] 95 | |                     }
[INFO] [stdout] 96 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]    |
[INFO] [stdout] 92 ~                 if right < 9
[INFO] [stdout] 93 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 94 |                         open_list.push_back(coords)
[INFO] [stdout] 95 ~                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/challenge9.rs:101:17
[INFO] [stdout]     |
[INFO] [stdout] 101 | /                 if up < 9 {
[INFO] [stdout] 102 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 103 | |                         open_list.push_back(coords)
[INFO] [stdout] 104 | |                     }
[INFO] [stdout] 105 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 101 ~                 if up < 9
[INFO] [stdout] 102 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 103 |                         open_list.push_back(coords)
[INFO] [stdout] 104 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` statement can be collapsed
[INFO] [stdout]    --> src/challenge9.rs:110:17
[INFO] [stdout]     |
[INFO] [stdout] 110 | /                 if down < 9 {
[INFO] [stdout] 111 | |                     if !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 112 | |                         open_list.push_back(coords)
[INFO] [stdout] 113 | |                     }
[INFO] [stdout] 114 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 110 ~                 if down < 9
[INFO] [stdout] 111 ~                     && !open_list.contains(&coords) && !visited.contains(&coords) {
[INFO] [stdout] 112 |                         open_list.push_back(coords)
[INFO] [stdout] 113 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]   --> src/challenge10.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |         if stack.len() == 0 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `stack.is_empty()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/challenge11.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 if !(n_y == y && n_x == x) && !self.flashed[self.get_index(n_x, n_y)] {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `!(self.flashed[self.get_index(n_x, n_y)] || n_y == y && n_x == x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/challenge11.rs:90:26
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let mut grid = parse(&input);
[INFO] [stdout]    |                          ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/challenge11.rs:115:15
[INFO] [stdout]     |
[INFO] [stdout] 115 |         while unflashed_in_grid.len() > 0 {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!unflashed_in_grid.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/challenge11.rs:143:26
[INFO] [stdout]     |
[INFO] [stdout] 143 |     let mut grid = parse(&input);
[INFO] [stdout]     |                          ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: length comparison to zero
[INFO] [stdout]    --> src/challenge11.rs:154:15
[INFO] [stdout]     |
[INFO] [stdout] 154 |         while unflashed_in_grid.len() > 0 {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!unflashed_in_grid.is_empty()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]    --> src/challenge8.rs:108:27
[INFO] [stdout]     |
[INFO] [stdout] 108 |               input_values: vec![
[INFO] [stdout]     |  ___________________________^
[INFO] [stdout] 109 | |                 "gcafb", "gcf", "dcaebfg", "ecagb", "gf", "abcdeg", "gaef", "cafbge", "fdbac",
[INFO] [stdout] 110 | |                 "fegbdc",
[INFO] [stdout] 111 | |             ]
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout]     = note: `#[warn(clippy::useless_vec)]` on by default
[INFO] [stdout] help: you can use an array directly
[INFO] [stdout]     |
[INFO] [stdout] 108 ~             input_values: ["gcafb", "gcf", "dcaebfg", "ecagb", "gf", "abcdeg", "gaef", "cafbge", "fdbac",
[INFO] [stdout] 109 +                 "fegbdc"]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `vec!`
[INFO] [stdout]    --> src/challenge8.rs:115:28
[INFO] [stdout]     |
[INFO] [stdout] 115 |             output_values: vec!["fgae", "cfgab", "fg", "bagce"]
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can use an array directly: `["fgae", "cfgab", "fg", "bagce"]`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:61:48
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let result = challenge2::move_directly(&input);
[INFO] [stdout]    |                                                ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:68:46
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let result = challenge2::move_by_aim(&input);
[INFO] [stdout]    |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:92:57
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let result = challenge3::get_power_rates_binary(&input);
[INFO] [stdout]    |                                                         ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:99:58
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let result = challenge3::get_power_rates_logical(&input);
[INFO] [stdout]    |                                                          ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:106:49
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let result = challenge3::get_life_rates(&input);
[INFO] [stdout]     |                                                 ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:128:45
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let result = challenge4::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:135:45
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let result = challenge4::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:159:63
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let result = challenge5::challenge1(parse_coordinates(&input));
[INFO] [stdout]     |                                                               ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:166:63
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let result = challenge5::challenge2(parse_coordinates(&input));
[INFO] [stdout]     |                                                               ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:189:45
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let result = challenge6::challenge2(&input, 80);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:196:45
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let result = challenge6::challenge2(&input, 256);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:218:45
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let result = challenge7::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:225:45
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let result = challenge7::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:247:45
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let result = challenge8::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:254:45
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let result = challenge8::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:276:45
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let result = challenge9::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:283:45
[INFO] [stdout]     |
[INFO] [stdout] 283 |         let result = challenge9::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:305:46
[INFO] [stdout]     |
[INFO] [stdout] 305 |         let result = challenge10::challenge1(&input);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:312:46
[INFO] [stdout]     |
[INFO] [stdout] 312 |         let result = challenge10::challenge2(&input);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:334:46
[INFO] [stdout]     |
[INFO] [stdout] 334 |         let result = challenge11::challenge1(&input, 100);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:341:46
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let result = challenge11::challenge2(&input);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:61:48
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let result = challenge2::move_directly(&input);
[INFO] [stdout]    |                                                ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:68:46
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let result = challenge2::move_by_aim(&input);
[INFO] [stdout]    |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:92:57
[INFO] [stdout]    |
[INFO] [stdout] 92 |         let result = challenge3::get_power_rates_binary(&input);
[INFO] [stdout]    |                                                         ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]   --> src/main.rs:99:58
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let result = challenge3::get_power_rates_logical(&input);
[INFO] [stdout]    |                                                          ^^^^^^ help: change this to: `input`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:106:49
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let result = challenge3::get_life_rates(&input);
[INFO] [stdout]     |                                                 ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:128:45
[INFO] [stdout]     |
[INFO] [stdout] 128 |         let result = challenge4::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:135:45
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let result = challenge4::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:159:63
[INFO] [stdout]     |
[INFO] [stdout] 159 |         let result = challenge5::challenge1(parse_coordinates(&input));
[INFO] [stdout]     |                                                               ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:166:63
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let result = challenge5::challenge2(parse_coordinates(&input));
[INFO] [stdout]     |                                                               ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:189:45
[INFO] [stdout]     |
[INFO] [stdout] 189 |         let result = challenge6::challenge2(&input, 80);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:196:45
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let result = challenge6::challenge2(&input, 256);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:218:45
[INFO] [stdout]     |
[INFO] [stdout] 218 |         let result = challenge7::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:225:45
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let result = challenge7::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:247:45
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let result = challenge8::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:254:45
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let result = challenge8::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:276:45
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let result = challenge9::challenge1(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:283:45
[INFO] [stdout]     |
[INFO] [stdout] 283 |         let result = challenge9::challenge2(&input);
[INFO] [stdout]     |                                             ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:305:46
[INFO] [stdout]     |
[INFO] [stdout] 305 |         let result = challenge10::challenge1(&input);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:312:46
[INFO] [stdout]     |
[INFO] [stdout] 312 |         let result = challenge10::challenge2(&input);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:334:46
[INFO] [stdout]     |
[INFO] [stdout] 334 |         let result = challenge11::challenge1(&input, 100);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/main.rs:341:46
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let result = challenge11::challenge2(&input);
[INFO] [stdout]     |                                              ^^^^^^ help: change this to: `input`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "2b075295f9fab2c2db1398de1b7519b6b219fa7930d87af78c51ed418da67ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b075295f9fab2c2db1398de1b7519b6b219fa7930d87af78c51ed418da67ef5", kill_on_drop: false }`
[INFO] [stdout] 2b075295f9fab2c2db1398de1b7519b6b219fa7930d87af78c51ed418da67ef5