[INFO] cloning repository https://github.com/yanbonnel/aoc-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yanbonnel/aoc-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyanbonnel%2Faoc-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyanbonnel%2Faoc-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d501bff53f4ecbbd5958b051cb6b1007f871938a
[INFO] linting yanbonnel/aoc-2021 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyanbonnel%2Faoc-2021" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yanbonnel/aoc-2021
[INFO] finished tweaking git repo https://github.com/yanbonnel/aoc-2021
[INFO] tweaked toml for git repo https://github.com/yanbonnel/aoc-2021 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yanbonnel/aoc-2021 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/yanbonnel/aoc-2021 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 301277a0b5e088d379bff453152ea9694679b0c572632404461971635527acb4
[INFO] running `Command { std: "docker" "start" "-a" "301277a0b5e088d379bff453152ea9694679b0c572632404461971635527acb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "301277a0b5e088d379bff453152ea9694679b0c572632404461971635527acb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "301277a0b5e088d379bff453152ea9694679b0c572632404461971635527acb4", kill_on_drop: false }`
[INFO] [stdout] 301277a0b5e088d379bff453152ea9694679b0c572632404461971635527acb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 8cc058b9fdb6617f62a3ea4b3f90682f5dece37f5b0e3b089ab4958e3bb9f940
[INFO] running `Command { std: "docker" "start" "-a" "8cc058b9fdb6617f62a3ea4b3f90682f5dece37f5b0e3b089ab4958e3bb9f940", kill_on_drop: false }`
[INFO] [stderr]     Checking adventofcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day6.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::day3::pow2`
[INFO] [stdout]  --> src/day8.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::day3::pow2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day11.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day14.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/day14.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let step1_result = (*most_common - *less_common);
[INFO] [stdout]    |                        ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -     let step1_result = (*most_common - *less_common);
[INFO] [stdout] 77 +     let step1_result = *most_common - *less_common ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day15.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/day19.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/day20.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap` and `HashSet`
[INFO] [stdout]  --> src/day20.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/day21.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day21.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/day21.rs:149:54
[INFO] [stdout]     |
[INFO] [stdout] 149 |        let players_win = boards.into_iter().map(|board| (
[INFO] [stdout]     |  _______________________________________________________^
[INFO] [stdout] 150 | |          (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)
[INFO] [stdout]     | | ________^_________________________________________________________________________________^
[INFO] [stdout]     | ||________|
[INFO] [stdout]     |  |
[INFO] [stdout] 151 |  |     )).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout]     |  |_____^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -     let players_win = boards.into_iter().map(|board| (
[INFO] [stdout] 150 -         (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)
[INFO] [stdout] 151 -     )).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout] 149 +     let players_win = boards.into_iter().map(|board| (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count) ).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses
[INFO] [stdout]    --> src/day21.rs:149:54
[INFO] [stdout]     |
[INFO] [stdout] 149 |       let players_win = boards.into_iter().map(|board| (
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 150 | |         (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)
[INFO] [stdout] 151 | |     )).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout]     | |_____^ help: remove them: `(board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stdout]     = note: `#[warn(clippy::double_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/day22.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day6.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::day3::pow2`
[INFO] [stdout]  --> src/day8.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::day3::pow2;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/day11.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day14.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/day14.rs:77:24
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let step1_result = (*most_common - *less_common);
[INFO] [stdout]    |                        ^                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -     let step1_result = (*most_common - *less_common);
[INFO] [stdout] 77 +     let step1_result = *most_common - *less_common ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day15.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashSet, HashMap};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/day19.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/day20.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap` and `HashSet`
[INFO] [stdout]  --> src/day20.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/day21.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::max;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/day21.rs:2:33
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/day21.rs:149:54
[INFO] [stdout]     |
[INFO] [stdout] 149 |        let players_win = boards.into_iter().map(|board| (
[INFO] [stdout]     |  _______________________________________________________^
[INFO] [stdout] 150 | |          (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)
[INFO] [stdout]     | | ________^_________________________________________________________________________________^
[INFO] [stdout]     | ||________|
[INFO] [stdout]     |  |
[INFO] [stdout] 151 |  |     )).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout]     |  |_____^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 149 -     let players_win = boards.into_iter().map(|board| (
[INFO] [stdout] 150 -         (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)
[INFO] [stdout] 151 -     )).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout] 149 +     let players_win = boards.into_iter().map(|board| (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count) ).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses
[INFO] [stdout]    --> src/day21.rs:149:54
[INFO] [stdout]     |
[INFO] [stdout] 149 |       let players_win = boards.into_iter().map(|board| (
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout] 150 | |         (board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)
[INFO] [stdout] 151 | |     )).fold(HashMap::new(), |mut acc: HashMap<u8, u128>, (id, count)| {
[INFO] [stdout]     | |_____^ help: remove them: `(board.players.iter().find(|player| player.score >= 21).unwrap().id, board.count)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#double_parens
[INFO] [stdout]     = note: `#[warn(clippy::double_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/day22.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]  --> src/day3.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |     (0..pow).fold(1, |acc, item|
[INFO] [stdout]   |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]  --> src/day3.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |     (0..pow).fold(1, |acc, item|
[INFO] [stdout]   |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]   --> src/day8.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let inputs = input_output[0].trim();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/day8.rs:153:28
[INFO] [stdout]     |
[INFO] [stdout] 153 |     (0..pow).fold(1, |acc, item|
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inputs`
[INFO] [stdout]   --> src/day8.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let inputs = input_output[0].trim();
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_inputs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/day8.rs:153:28
[INFO] [stdout]     |
[INFO] [stdout] 153 |     (0..pow).fold(1, |acc, item|
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/day10.rs:78:26
[INFO] [stdout]    |
[INFO] [stdout] 78 |         .filter(|(wrong, score)| !*wrong)
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/day10.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |         .filter(|(wrong, score)| *wrong)
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:35:42
[INFO] [stdout]    |
[INFO] [stdout] 35 |         line.iter().enumerate().filter(|(x, octopus)| octopus.must_flash).map(move |(x, _)| (x as i8, y as i8))
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/day10.rs:78:26
[INFO] [stdout]    |
[INFO] [stdout] 78 |         .filter(|(wrong, score)| !*wrong)
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `score`
[INFO] [stdout]   --> src/day10.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |         .filter(|(wrong, score)| *wrong)
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_score`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day11.rs:35:42
[INFO] [stdout]    |
[INFO] [stdout] 35 |         line.iter().enumerate().filter(|(x, octopus)| octopus.must_flash).map(move |(x, _)| (x as i8, y as i8))
[INFO] [stdout]    |                                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day13.rs:60:33
[INFO] [stdout]    |
[INFO] [stdout] 60 |         step2_fold.iter().map(|(x, y)| *y).max().unwrap()
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day13.rs:59:36
[INFO] [stdout]    |
[INFO] [stdout] 59 |         step2_fold.iter().map(|(x, y)| *x).max().unwrap(),
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/day14.rs:23:88
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut pattern: HashMap<(char, char), u128> = pairs.into_iter().enumerate().map(|(idx, (c1, c2))| {
[INFO] [stdout]    |                                                                                        ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day14.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut result = pattern.iter().map(|((c1, c2), count)| {
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/day14.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut result = pattern.iter().map(|((c1, c2), count)| {
[INFO] [stdout]    |                                            ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/day13.rs:60:33
[INFO] [stdout]    |
[INFO] [stdout] 60 |         step2_fold.iter().map(|(x, y)| *y).max().unwrap()
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/day13.rs:59:36
[INFO] [stdout]    |
[INFO] [stdout] 59 |         step2_fold.iter().map(|(x, y)| *x).max().unwrap(),
[INFO] [stdout]    |                                    ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> src/day14.rs:23:88
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut pattern: HashMap<(char, char), u128> = pairs.into_iter().enumerate().map(|(idx, (c1, c2))| {
[INFO] [stdout]    |                                                                                        ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day14.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut result = pattern.iter().map(|((c1, c2), count)| {
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/day14.rs:63:44
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut result = pattern.iter().map(|((c1, c2), count)| {
[INFO] [stdout]    |                                            ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_splited` is never read
[INFO] [stdout]    --> src/day18.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             has_splited = false;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_splited` is never read
[INFO] [stdout]    --> src/day18.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             has_splited = false;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/day19.rs:189:38
[INFO] [stdout]     |
[INFO] [stdout] 189 |         distances.into_iter().find(|(item, counter)| *counter >= 12)
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/day19.rs:189:38
[INFO] [stdout]     |
[INFO] [stdout] 189 |         distances.into_iter().find(|(item, counter)| *counter >= 12)
[INFO] [stdout]     |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `explored_scanner_id`
[INFO] [stdout]    --> src/day19.rs:213:14
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let (explored_scanner_id, scanner_id, rotate, dist) = (0..explored_scanners.len())
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_explored_scanner_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `explored_scanner_id`
[INFO] [stdout]    --> src/day19.rs:213:14
[INFO] [stdout]     |
[INFO] [stdout] 213 |         let (explored_scanner_id, scanner_id, rotate, dist) = (0..explored_scanners.len())
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_explored_scanner_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day21.rs:87:16
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn execute(input: &str) {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]   --> src/day21.rs:87:16
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn execute(input: &str) {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]  --> src/day1.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn execute() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nb_increase` is never used
[INFO] [stdout]   --> src/day1.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn nb_increase(values: &Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Action` is never used
[INFO] [stdout]  --> src/day2.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Action {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]  --> src/day2.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn parse(line: &str) -> Action {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day2.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]  --> src/day3.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Counter {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow2` is never used
[INFO] [stdout]  --> src/day3.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn pow2(pow: usize) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits_to_dec` is never used
[INFO] [stdout]   --> src/day3.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn bits_to_dec(line: String) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day3.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_cars` is never used
[INFO] [stdout]   --> src/day3.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn count_cars(values: &Vec<String>, length: usize) -> Vec<Counter> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> src/day4.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Number {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/day4.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_number`, `is_win`, and `score` are never used
[INFO] [stdout]   --> src/day4.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 15 |     fn new(lines: Vec<String>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn add_number(&mut self, number: i32) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn is_win(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn score(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day4.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_step1` is never used
[INFO] [stdout]   --> src/day4.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn play_step1(numbers: &Vec<i32>, boards: &Vec<Board>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_step2` is never used
[INFO] [stdout]   --> src/day4.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn play_step2(numbers: &Vec<i32>, boards: &Vec<Board>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Wind` is never constructed
[INFO] [stdout]  --> src/day5.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Wind {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_only_hori_or_vert`, and `covert_points` are never used
[INFO] [stdout]   --> src/day5.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Wind {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout]  9 |     fn new(line: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn is_only_hori_or_vert(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn covert_points(&self) -> Vec<(i32, i32)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day5.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Fish` is never constructed
[INFO] [stdout]  --> src/day6.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Fish {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]   --> src/day6.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Fish {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 10 |     fn next(&self) -> Vec<Fish> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reduce_fishes` is never used
[INFO] [stdout]   --> src/day6.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn reduce_fishes(fishes: Vec<Fish>) -> Vec<Fish> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_fishes` is never used
[INFO] [stdout]   --> src/day6.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn count_fishes(fishes: &Vec<Fish>) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day6.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Crab` is never constructed
[INFO] [stdout]  --> src/day7.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Crab {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fuel_needed` and `fuel_needed_2` are never used
[INFO] [stdout]   --> src/day7.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl Crab {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout]  7 |     fn fuel_needed(&self, target: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     fn fuel_needed_2(&self, target: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day7.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initial_mapping` is never used
[INFO] [stdout]  --> src/day8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn initial_mapping() -> HashMap<char, Vec<char>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expend` is never used
[INFO] [stdout]   --> src/day8.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn expend(cars: Vec<HashMap<char, char>>) -> Vec<HashMap<char, char>> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_possible_mapping` is never used
[INFO] [stdout]   --> src/day8.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn all_possible_mapping() -> Vec<HashMap<char, char>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `works` is never used
[INFO] [stdout]   --> src/day8.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn works(input: &str, mapping: &HashMap<char, char>) -> bool {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day8.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow10` is never used
[INFO] [stdout]    --> src/day8.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn pow10(pow: usize) -> i32 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expend` is never used
[INFO] [stdout]  --> src/day9.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn expend(pts: HashSet<(usize, usize)>, nines: &HashSet<(usize, usize)>, max_x: usize, max_y: usize) -> HashSet<(usize, usize)> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day9.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_open` is never used
[INFO] [stdout]  --> src/day10.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_open(car: char) -> bool {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `corresponding_close` is never used
[INFO] [stdout]  --> src/day10.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn corresponding_close(car: char) -> char {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score` is never used
[INFO] [stdout]   --> src/day10.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn score(wrong_car: char) -> u128 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score_2` is never used
[INFO] [stdout]   --> src/day10.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn score_2(car: char) -> u128 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyse` is never used
[INFO] [stdout]   --> src/day10.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn analyse(line: String) -> (bool, u128) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day10.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Octopus` is never constructed
[INFO] [stdout]  --> src/day11.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Octopus {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `inc` and `count_flash` are never used
[INFO] [stdout]   --> src/day11.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Octopus {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 11 |     fn inc(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn count_flash(&mut self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flashes` is never used
[INFO] [stdout]   --> src/day11.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn flashes(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/day11.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn print(octopuses: &Vec<Vec<Octopus>>) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expend` is never used
[INFO] [stdout]   --> src/day11.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn expend(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day11.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cave` is never constructed
[INFO] [stdout]  --> src/day12.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cave {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Path` is never constructed
[INFO] [stdout]  --> src/day12.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Path {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `display` and `next` are never used
[INFO] [stdout]   --> src/day12.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Path {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 15 |     fn display(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn next(self, links: &HashMap<String, Vec<String>>, step2: bool) -> Vec<Self> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day12.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold` is never used
[INFO] [stdout]  --> src/day13.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn fold(fold_instruction: String, points: HashSet<(u32, u32)>) -> HashSet<(u32, u32)> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day13.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]  --> src/day14.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn execute(input: &str) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `iterate` is never used
[INFO] [stdout]   --> src/day14.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn iterate(pattern: &HashMap<(char, char), u128>, rules: &HashMap<(char, char), char>) -> HashMap<(char, char), u128> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_result` is never used
[INFO] [stdout]   --> src/day14.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn calculate_result(pattern: &HashMap<(char, char), u128>, first_car: char) -> u128 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Path` is never constructed
[INFO] [stdout]  --> src/day15.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Path {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]  --> src/day15.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Path {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 9 |     fn next(self, risks: &Vec<Vec<u32>>) -> Vec<Path> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_risk` is never used
[INFO] [stdout]   --> src/day15.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn new_risk(new_risk: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day15.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `car_to_binary` is never used
[INFO] [stdout]  --> src/day16.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn car_to_binary(car: char) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_binary` is never used
[INFO] [stdout]   --> src/day16.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn to_binary(line: String) -> String{
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PacketData` is never used
[INFO] [stdout]   --> src/day16.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum PacketData {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Packet` is never constructed
[INFO] [stdout]   --> src/day16.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Packet {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow2` is never used
[INFO] [stdout]   --> src/day16.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn pow2(pow: usize) -> u128 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `version` and `value` are never used
[INFO] [stdout]   --> src/day16.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl Packet {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 52 |     fn version(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn value(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_to_dec` is never used
[INFO] [stdout]    --> src/day16.rs:103:4
[INFO] [stdout]     |
[INFO] [stdout] 103 | fn binary_to_dec(data: &String) -> u128 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]    --> src/day16.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn execute(input: &str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode` is never used
[INFO] [stdout]    --> src/day16.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn decode(binary: &String, mut index: usize) -> (Packet, usize) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_literal` is never used
[INFO] [stdout]    --> src/day16.rs:193:4
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn decode_literal(binary: &String, mut index: usize) -> (Vec<String>, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Path` is never constructed
[INFO] [stdout]  --> src/day17.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Path {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next`, `is_fail`, and `is_in_target` are never used
[INFO] [stdout]   --> src/day17.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Path {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 11 |     fn next(self, target_x: (i32, i32), target_y: (i32, i32)) -> Path {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn is_fail(&self, (min_x, max_x): (i32, i32), (min_y, _): (i32, i32)) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn is_in_target(&self, (min_x, max_x): (i32, i32), (min_y, max_y): (i32, i32)) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day17.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Member` is never used
[INFO] [stdout]  --> src/day18.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Member {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `split`, `more_depth`, and `magnitude` are never used
[INFO] [stdout]   --> src/day18.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Member {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 10 |     fn split(self, depth: usize) -> (Member, bool) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn more_depth(&self) -> Member {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn magnitude(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/day18.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Pair {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/day18.rs:56:8
[INFO] [stdout]     |
[INFO] [stdout]  55 | impl Pair {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout]  56 |     fn add_first_left(&self, d: u8) -> Member {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  72 |     fn add_first_right(&self, d: u8) -> Member {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  88 |     fn split(self) -> (Pair, bool) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn explode(&mut self) -> (Option<u8>, Option<u8>, bool) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn have_pairs_to_explode(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     fn print(&self) -> String {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn reduce(self) -> Pair {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn magnitude(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn more_depth(&self) -> Pair {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn add(&self, other: &Pair) -> Pair {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parsing` is never constructed
[INFO] [stdout]    --> src/day18.rs:243:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | struct Parsing {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]    --> src/day18.rs:249:8
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn execute(input: &str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Beacon` is never constructed
[INFO] [stdout]  --> src/day19.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Beacon {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `dist`, `translate`, and `rotate` are never used
[INFO] [stdout]   --> src/day19.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Beacon {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 12 |     fn new(input: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn dist(&self, other: &Self) -> (i32, i32, i32) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn translate(&self, dist: (i32, i32, i32)) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn rotate(&self, id: i32) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scanner` is never constructed
[INFO] [stdout]    --> src/day19.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct Scanner {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `has_common_beacon`, and `adjust` are never used
[INFO] [stdout]    --> src/day19.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | impl Scanner {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 173 |     fn new(input: &str) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn has_common_beacon(&self, other: &Scanner, rotate: i32) -> Option<(i32, i32, i32)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn adjust(&self, rotate: i32, dist: (i32, i32, i32)) -> Self {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]    --> src/day19.rs:203:8
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub fn execute(input: &str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Map` is never constructed
[INFO] [stdout]  --> src/day20.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Map {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow2` is never used
[INFO] [stdout]   --> src/day20.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn pow2(pow: usize) -> usize {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_to_dec` is never used
[INFO] [stdout]   --> src/day20.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn binary_to_dec(data: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `exisiting_car`, `next_car`, `next`, `prepare_for_next`, `print`, and `count` are never used
[INFO] [stdout]   --> src/day20.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Map {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 33 |     fn exisiting_car(&self, x: i32, y: i32) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn next_car(&self, x: usize, y: usize, enhancement: &String) -> char {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn next(&self, enhancement: &String) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn prepare_for_next(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn print(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn count(&self) -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day20.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Die` is never constructed
[INFO] [stdout]  --> src/day21.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Die {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_run` is never used
[INFO] [stdout]   --> src/day21.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Die {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn next_run(&mut self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]   --> src/day21.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Player {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/day21.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_finish` and `next` are never used
[INFO] [stdout]   --> src/day21.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl Board {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 39 |     fn is_finish(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn next(self) -> Vec<Self> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]  --> src/day1.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn execute() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_dies` is never used
[INFO] [stdout]   --> src/day21.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn all_dies() -> Vec<(u16, u128)> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `win` and `play` are never used
[INFO] [stdout]   --> src/day21.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl Player {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 72 |     fn win(&self) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     fn play(&self, die: u16) -> Player {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day21.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `all_pos` is never used
[INFO] [stdout]    --> src/day22.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl Step {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 132 |     fn all_pos(&self) -> HashSet<(i32, i32, i32)> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `nb_increase` is never used
[INFO] [stdout]   --> src/day1.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn nb_increase(values: &Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Action` is never used
[INFO] [stdout]  --> src/day2.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Action {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]  --> src/day2.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn parse(line: &str) -> Action {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day2.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]  --> src/day3.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Counter {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow2` is never used
[INFO] [stdout]  --> src/day3.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn pow2(pow: usize) -> u32 {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bits_to_dec` is never used
[INFO] [stdout]   --> src/day3.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn bits_to_dec(line: String) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day3.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_cars` is never used
[INFO] [stdout]   --> src/day3.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn count_cars(values: &Vec<String>, length: usize) -> Vec<Counter> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Number` is never constructed
[INFO] [stdout]  --> src/day4.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Number {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/day4.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_number`, `is_win`, and `score` are never used
[INFO] [stdout]   --> src/day4.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Board {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 15 |     fn new(lines: Vec<String>) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn add_number(&mut self, number: i32) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn is_win(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn score(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day4.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_step1` is never used
[INFO] [stdout]   --> src/day4.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn play_step1(numbers: &Vec<i32>, boards: &Vec<Board>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_step2` is never used
[INFO] [stdout]   --> src/day4.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn play_step2(numbers: &Vec<i32>, boards: &Vec<Board>) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Wind` is never constructed
[INFO] [stdout]  --> src/day5.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Wind {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `is_only_hori_or_vert`, and `covert_points` are never used
[INFO] [stdout]   --> src/day5.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl Wind {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout]  9 |     fn new(line: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn is_only_hori_or_vert(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     fn covert_points(&self) -> Vec<(i32, i32)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day5.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Fish` is never constructed
[INFO] [stdout]  --> src/day6.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Fish {
[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/day1.rs:17:24
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn nb_increase(values: &Vec<i32>) -> (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] 17 - fn nb_increase(values: &Vec<i32>) -> (i32, i32) {
[INFO] [stdout] 17 + fn nb_increase(values: &[i32]) -> (i32, i32) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of a legacy numeric method
[INFO] [stdout]   --> src/day1.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 |     values.iter().fold((0, i32::max_value()), |(count, pred), val|
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]    = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] help: use the associated constant instead
[INFO] [stdout]    |
[INFO] [stdout] 18 -     values.iter().fold((0, i32::max_value()), |(count, pred), val|
[INFO] [stdout] 18 +     values.iter().fold((0, i32::MAX), |(count, pred), val|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]   --> src/day6.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Fish {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 10 |     fn next(&self) -> Vec<Fish> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reduce_fishes` is never used
[INFO] [stdout]   --> src/day6.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn reduce_fishes(fishes: Vec<Fish>) -> Vec<Fish> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_fishes` is never used
[INFO] [stdout]   --> src/day6.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn count_fishes(fishes: &Vec<Fish>) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day6.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Crab` is never constructed
[INFO] [stdout]  --> src/day7.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Crab {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fuel_needed` and `fuel_needed_2` are never used
[INFO] [stdout]   --> src/day7.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl Crab {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout]  7 |     fn fuel_needed(&self, target: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     fn fuel_needed_2(&self, target: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day7.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initial_mapping` is never used
[INFO] [stdout]  --> src/day8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn initial_mapping() -> HashMap<char, Vec<char>> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expend` is never used
[INFO] [stdout]   --> src/day8.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn expend(cars: Vec<HashMap<char, char>>) -> Vec<HashMap<char, char>> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_possible_mapping` is never used
[INFO] [stdout]   --> src/day8.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn all_possible_mapping() -> Vec<HashMap<char, char>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `works` is never used
[INFO] [stdout]   --> src/day8.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn works(input: &str, mapping: &HashMap<char, char>) -> bool {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day8.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow10` is never used
[INFO] [stdout]    --> src/day8.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn pow10(pow: usize) -> i32 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expend` is never used
[INFO] [stdout]  --> src/day9.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn expend(pts: HashSet<(usize, usize)>, nines: &HashSet<(usize, usize)>, max_x: usize, max_y: usize) -> HashSet<(usize, usize)> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day9.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_open` is never used
[INFO] [stdout]  --> src/day10.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_open(car: char) -> bool {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `corresponding_close` is never used
[INFO] [stdout]  --> src/day10.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn corresponding_close(car: char) -> char {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score` is never used
[INFO] [stdout]   --> src/day10.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn score(wrong_car: char) -> u128 {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score_2` is never used
[INFO] [stdout]   --> src/day10.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn score_2(car: char) -> u128 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `analyse` is never used
[INFO] [stdout]   --> src/day10.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn analyse(line: String) -> (bool, u128) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day2.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         let result = match action {
[INFO] [stdout] 33 | |             Action::Forward(nb) => (x + nb, depth + aim*nb, aim),
[INFO] [stdout] 34 | |             Action::Up(nb) => (x, depth, aim - nb),
[INFO] [stdout] 35 | |             Action::Down(nb) => (x, depth, aim + nb),
[INFO] [stdout] 36 | |         };
[INFO] [stdout]    | |__________- unnecessary `let` binding
[INFO] [stdout] 37 |           result
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 32 ~         
[INFO] [stdout] 33 ~         match action {
[INFO] [stdout] 34 +             Action::Forward(nb) => (x + nb, depth + aim*nb, aim),
[INFO] [stdout] 35 +             Action::Up(nb) => (x, depth, aim - nb),
[INFO] [stdout] 36 +             Action::Down(nb) => (x, depth, aim + nb),
[INFO] [stdout] 37 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day10.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Octopus` is never constructed
[INFO] [stdout]  --> src/day11.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Octopus {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `inc` and `count_flash` are never used
[INFO] [stdout]   --> src/day11.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Octopus {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 11 |     fn inc(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn count_flash(&mut self) -> u8 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `flashes` is never used
[INFO] [stdout]   --> src/day11.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn flashes(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]   --> src/day11.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn print(octopuses: &Vec<Vec<Octopus>>) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expend` is never used
[INFO] [stdout]   --> src/day11.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn expend(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day11.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cave` is never constructed
[INFO] [stdout]  --> src/day12.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Cave {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Path` is never constructed
[INFO] [stdout]  --> src/day12.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Path {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `display` and `next` are never used
[INFO] [stdout]   --> src/day12.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Path {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 15 |     fn display(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn next(self, links: &HashMap<String, Vec<String>>, step2: bool) -> Vec<Self> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day12.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fold` is never used
[INFO] [stdout]  --> src/day13.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn fold(fold_instruction: String, points: HashSet<(u32, u32)>) -> HashSet<(u32, u32)> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day13.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]  --> src/day14.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn execute(input: &str) {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `iterate` is never used
[INFO] [stdout]   --> src/day14.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn iterate(pattern: &HashMap<(char, char), u128>, rules: &HashMap<(char, char), char>) -> HashMap<(char, char), u128> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_result` is never used
[INFO] [stdout]   --> src/day14.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn calculate_result(pattern: &HashMap<(char, char), u128>, first_car: char) -> u128 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Path` is never constructed
[INFO] [stdout]  --> src/day15.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Path {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]  --> src/day15.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Path {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 9 |     fn next(self, risks: &Vec<Vec<u32>>) -> Vec<Path> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_risk` is never used
[INFO] [stdout]   --> src/day15.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn new_risk(new_risk: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day15.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `car_to_binary` is never used
[INFO] [stdout]  --> src/day16.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn car_to_binary(car: char) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_binary` is never used
[INFO] [stdout]   --> src/day16.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn to_binary(line: String) -> String{
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PacketData` is never used
[INFO] [stdout]   --> src/day16.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum PacketData {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Packet` is never constructed
[INFO] [stdout]   --> src/day16.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Packet {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow2` is never used
[INFO] [stdout]   --> src/day16.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn pow2(pow: usize) -> u128 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `version` and `value` are never used
[INFO] [stdout]   --> src/day16.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl Packet {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 52 |     fn version(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn value(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_to_dec` is never used
[INFO] [stdout]    --> src/day16.rs:103:4
[INFO] [stdout]     |
[INFO] [stdout] 103 | fn binary_to_dec(data: &String) -> u128 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]    --> src/day16.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn execute(input: &str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode` is never used
[INFO] [stdout]    --> src/day16.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn decode(binary: &String, mut index: usize) -> (Packet, usize) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_literal` is never used
[INFO] [stdout]    --> src/day16.rs:193:4
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn decode_literal(binary: &String, mut index: usize) -> (Vec<String>, usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Path` is never constructed
[INFO] [stdout]  --> src/day17.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Path {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next`, `is_fail`, and `is_in_target` are never used
[INFO] [stdout]   --> src/day17.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Path {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 11 |     fn next(self, target_x: (i32, i32), target_y: (i32, i32)) -> Path {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn is_fail(&self, (min_x, max_x): (i32, i32), (min_y, _): (i32, i32)) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn is_in_target(&self, (min_x, max_x): (i32, i32), (min_y, max_y): (i32, i32)) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day17.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Member` is never used
[INFO] [stdout]  --> src/day18.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Member {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `split`, `more_depth`, and `magnitude` are never used
[INFO] [stdout]   --> src/day18.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Member {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 10 |     fn split(self, depth: usize) -> (Member, bool) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn more_depth(&self) -> Member {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn magnitude(&self) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/day18.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Pair {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/day18.rs:56:8
[INFO] [stdout]     |
[INFO] [stdout]  55 | impl Pair {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout]  56 |     fn add_first_left(&self, d: u8) -> Member {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  72 |     fn add_first_right(&self, d: u8) -> Member {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  88 |     fn split(self) -> (Pair, bool) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn explode(&mut self) -> (Option<u8>, Option<u8>, bool) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 182 |     fn have_pairs_to_explode(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     fn print(&self) -> String {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 206 |     fn reduce(self) -> Pair {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 221 |     fn magnitude(&self) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn more_depth(&self) -> Pair {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     fn add(&self, other: &Pair) -> Pair {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parsing` is never constructed
[INFO] [stdout]    --> src/day18.rs:243:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | struct Parsing {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]    --> src/day18.rs:249:8
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub fn execute(input: &str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Beacon` is never constructed
[INFO] [stdout]  --> src/day19.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Beacon {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `dist`, `translate`, and `rotate` are never used
[INFO] [stdout]   --> src/day19.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Beacon {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 12 |     fn new(input: &str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn dist(&self, other: &Self) -> (i32, i32, i32) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn translate(&self, dist: (i32, i32, i32)) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn rotate(&self, id: i32) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scanner` is never constructed
[INFO] [stdout]    --> src/day19.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | struct Scanner {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `has_common_beacon`, and `adjust` are never used
[INFO] [stdout]    --> src/day19.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | impl Scanner {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout] 173 |     fn new(input: &str) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn has_common_beacon(&self, other: &Scanner, rotate: i32) -> Option<(i32, i32, i32)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn adjust(&self, rotate: i32, dist: (i32, i32, i32)) -> Self {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]    --> src/day19.rs:203:8
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub fn execute(input: &str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Map` is never constructed
[INFO] [stdout]  --> src/day20.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Map {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pow2` is never used
[INFO] [stdout]   --> src/day20.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn pow2(pow: usize) -> usize {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_to_dec` is never used
[INFO] [stdout]   --> src/day20.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn binary_to_dec(data: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `exisiting_car`, `next_car`, `next`, `prepare_for_next`, `print`, and `count` are never used
[INFO] [stdout]   --> src/day20.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl Map {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] 33 |     fn exisiting_car(&self, x: i32, y: i32) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn next_car(&self, x: usize, y: usize, enhancement: &String) -> char {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn next(&self, enhancement: &String) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn prepare_for_next(&self) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn print(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     fn count(&self) -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day20.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Die` is never constructed
[INFO] [stdout]  --> src/day21.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Die {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next_run` is never used
[INFO] [stdout]   --> src/day21.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Die {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn next_run(&mut self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Player` is never constructed
[INFO] [stdout]   --> src/day21.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Player {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Board` is never constructed
[INFO] [stdout]   --> src/day21.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Board {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_finish` and `next` are never used
[INFO] [stdout]   --> src/day21.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl Board {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 39 |     fn is_finish(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     fn next(self) -> Vec<Self> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all_dies` is never used
[INFO] [stdout]   --> src/day21.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn all_dies() -> Vec<(u16, u128)> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `win` and `play` are never used
[INFO] [stdout]   --> src/day21.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl Player {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 72 |     fn win(&self) -> bool {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     fn play(&self, die: u16) -> Player {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `execute` is never used
[INFO] [stdout]   --> src/day21.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn execute(input: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `all_pos` is never used
[INFO] [stdout]    --> src/day22.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl Step {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 132 |     fn all_pos(&self) -> HashSet<(i32, 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/day3.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn count_cars(values: &Vec<String>, length: usize) -> Vec<Counter> {
[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] 73 - fn count_cars(values: &Vec<String>, length: usize) -> Vec<Counter> {
[INFO] [stdout] 73 + fn count_cars(values: &[String], length: usize) -> Vec<Counter> {
[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/day1.rs:17:24
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn nb_increase(values: &Vec<i32>) -> (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] 17 - fn nb_increase(values: &Vec<i32>) -> (i32, i32) {
[INFO] [stdout] 17 + fn nb_increase(values: &[i32]) -> (i32, i32) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of a legacy numeric method
[INFO] [stdout]   --> src/day1.rs:18:28
[INFO] [stdout]    |
[INFO] [stdout] 18 |     values.iter().fold((0, i32::max_value()), |(count, pred), val|
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#legacy_numeric_constants
[INFO] [stdout]    = note: `#[warn(clippy::legacy_numeric_constants)]` on by default
[INFO] [stdout] help: use the associated constant instead
[INFO] [stdout]    |
[INFO] [stdout] 18 -     values.iter().fold((0, i32::max_value()), |(count, pred), val|
[INFO] [stdout] 18 +     values.iter().fold((0, i32::MAX), |(count, pred), val|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day2.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         let result = match action {
[INFO] [stdout] 33 | |             Action::Forward(nb) => (x + nb, depth + aim*nb, aim),
[INFO] [stdout] 34 | |             Action::Up(nb) => (x, depth, aim - nb),
[INFO] [stdout] 35 | |             Action::Down(nb) => (x, depth, aim + nb),
[INFO] [stdout] 36 | |         };
[INFO] [stdout]    | |__________- unnecessary `let` binding
[INFO] [stdout] 37 |           result
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout]    = note: `#[warn(clippy::let_and_return)]` on by default
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 32 ~         
[INFO] [stdout] 33 ~         match action {
[INFO] [stdout] 34 +             Action::Forward(nb) => (x + nb, depth + aim*nb, aim),
[INFO] [stdout] 35 +             Action::Up(nb) => (x, depth, aim - nb),
[INFO] [stdout] 36 +             Action::Down(nb) => (x, depth, aim + nb),
[INFO] [stdout] 37 +         }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day4.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     return 0
[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: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 82 -     return 0
[INFO] [stdout] 82 +     0
[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/day4.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn play_step1(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 73 ~ fn play_step1(numbers: &[i32], boards: &Vec<Board>) -> i32 {
[INFO] [stdout] 74 |     let mut boards = boards.clone();
[INFO] [stdout] 75 ~     let numbers = numbers.to_owned();
[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/day4.rs:73:43
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn play_step1(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 73 ~ fn play_step1(numbers: &Vec<i32>, boards: &[Board]) -> i32 {
[INFO] [stdout] 74 ~     let mut boards = boards.to_owned();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `filter(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(..)` instead
[INFO] [stdout]   --> src/day4.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 78 |         if let Some(win_board) = boards.iter().filter(|board| board.is_win()).next() {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `boards.iter().find(|board| board.is_win())`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stdout]    = note: `#[warn(clippy::filter_next)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day4.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     return 0
[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] 95 -     return 0
[INFO] [stdout] 95 +     0
[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/day4.rs:85:24
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn play_step2(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 85 ~ fn play_step2(numbers: &[i32], boards: &Vec<Board>) -> i32 {
[INFO] [stdout] 86 |     let mut boards = boards.clone();
[INFO] [stdout] 87 ~     let numbers = numbers.to_owned();
[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/day4.rs:85:43
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn play_step2(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 85 ~ fn play_step2(numbers: &Vec<i32>, boards: &[Board]) -> i32 {
[INFO] [stdout] 86 ~     let mut boards = boards.to_owned();
[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/day3.rs:73:23
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn count_cars(values: &Vec<String>, length: usize) -> Vec<Counter> {
[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] 73 - fn count_cars(values: &Vec<String>, length: usize) -> Vec<Counter> {
[INFO] [stdout] 73 + fn count_cars(values: &[String], length: usize) -> Vec<Counter> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression can be written more simply using `.retain()`
[INFO] [stdout]   --> src/day4.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         boards = boards.into_iter().filter(|board| !board.is_win()).collect()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `boards.retain(|board| !board.is_win())`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_retain
[INFO] [stdout]    = note: `#[warn(clippy::manual_retain)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day5.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |             current_x = current_x + inc_x;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_x += inc_x`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day5.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             current_y = current_y + inc_y;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_y += inc_y`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day5.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |         .map(|line| Wind::new(line))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Wind::new`
[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: unneeded `return` statement
[INFO] [stdout]   --> src/day4.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     return 0
[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: remove `return`
[INFO] [stdout]    |
[INFO] [stdout] 82 -     return 0
[INFO] [stdout] 82 +     0
[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/day4.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn play_step1(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 73 ~ fn play_step1(numbers: &[i32], boards: &Vec<Board>) -> i32 {
[INFO] [stdout] 74 |     let mut boards = boards.clone();
[INFO] [stdout] 75 ~     let numbers = numbers.to_owned();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:67:35
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let current_counter = acc.get(&item).map(|i| *i).unwrap_or(0);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `acc.get(&item).copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]    = note: `#[warn(clippy::map_clone)]` 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/day4.rs:73:43
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn play_step1(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 73 ~ fn play_step1(numbers: &Vec<i32>, boards: &[Board]) -> i32 {
[INFO] [stdout] 74 ~     let mut boards = boards.to_owned();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:72:25
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let step_1_result = map.values().map(|i| *i).filter(|i| *i >= 2).count();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `map.values().copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `filter(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(..)` instead
[INFO] [stdout]   --> src/day4.rs:78:34
[INFO] [stdout]    |
[INFO] [stdout] 78 |         if let Some(win_board) = boards.iter().filter(|board| board.is_win()).next() {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `boards.iter().find(|board| board.is_win())`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stdout]    = note: `#[warn(clippy::filter_next)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/day4.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     return 0
[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] 95 -     return 0
[INFO] [stdout] 95 +     0
[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/day4.rs:85:24
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn play_step2(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 85 ~ fn play_step2(numbers: &[i32], boards: &Vec<Board>) -> i32 {
[INFO] [stdout] 86 |     let mut boards = boards.clone();
[INFO] [stdout] 87 ~     let numbers = numbers.to_owned();
[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/day4.rs:85:43
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn play_step2(numbers: &Vec<i32>, boards: &Vec<Board>) -> 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] 85 ~ fn play_step2(numbers: &Vec<i32>, boards: &[Board]) -> i32 {
[INFO] [stdout] 86 ~     let mut boards = boards.to_owned();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression can be written more simply using `.retain()`
[INFO] [stdout]   --> src/day4.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         boards = boards.into_iter().filter(|board| !board.is_win()).collect()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling `.retain()` instead: `boards.retain(|board| !board.is_win())`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_retain
[INFO] [stdout]    = note: `#[warn(clippy::manual_retain)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 |             let current_counter = acc.get(&item).map(|i| *i).unwrap_or(0);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `acc.get(&item).copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let step_2_result = map.values().map(|i| *i).filter(|i| *i >= 2).count();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `map.values().copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: iterating on a map's values
[INFO] [stdout]   --> src/day6.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     fishes.into_iter().fold(HashMap::<i32, Fish>::new(), |mut acc, fish| {
[INFO] [stdout] 31 | |         let actual_fish = acc.get(&fish.life).map(|fish| fish.clone()).unwrap_or(Fish {
[INFO] [stdout] 32 | |             life: fish.life,
[INFO] [stdout] 33 | |             count: 0
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     } ).into_iter()
[INFO] [stdout] 41 | |         .map(|(_, fish)| fish)
[INFO] [stdout]    | |______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map
[INFO] [stdout]    = note: `#[warn(clippy::iter_kv_map)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 30 ~     fishes.into_iter().fold(HashMap::<i32, Fish>::new(), |mut acc, fish| {
[INFO] [stdout] 31 +         let actual_fish = acc.get(&fish.life).map(|fish| fish.clone()).unwrap_or(Fish {
[INFO] [stdout] 32 +             life: fish.life,
[INFO] [stdout] 33 +             count: 0
[INFO] [stdout] 34 +         });
[INFO] [stdout] 35 +         acc.insert(fish.life, Fish {
[INFO] [stdout] 36 +             life: fish.life,
[INFO] [stdout] 37 +             count: actual_fish.count + fish.count
[INFO] [stdout] 38 +         });
[INFO] [stdout] 39 +         acc
[INFO] [stdout] 40 +     } ).into_values()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day5.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |             current_x = current_x + inc_x;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_x += inc_x`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout]    = note: `#[warn(clippy::assign_op_pattern)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for cloning elements
[INFO] [stdout]   --> src/day6.rs:31:27
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let actual_fish = acc.get(&fish.life).map(|fish| fish.clone()).unwrap_or(Fish {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `acc.get(&fish.life).cloned()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day5.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             current_y = current_y + inc_y;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `current_y += inc_y`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day6.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn count_fishes(fishes: &Vec<Fish>) -> 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] 45 - fn count_fishes(fishes: &Vec<Fish>) -> u64 {
[INFO] [stdout] 45 + fn count_fishes(fishes: &[Fish]) -> u64 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day5.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |         .map(|line| Wind::new(line))
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Wind::new`
[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: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:67:35
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let current_counter = acc.get(&item).map(|i| *i).unwrap_or(0);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `acc.get(&item).copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout]    = note: `#[warn(clippy::map_clone)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:72:25
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let step_1_result = map.values().map(|i| *i).filter(|i| *i >= 2).count();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `map.values().copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:79:35
[INFO] [stdout]    |
[INFO] [stdout] 79 |             let current_counter = acc.get(&item).map(|i| *i).unwrap_or(0);
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `acc.get(&item).copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day5.rs:84:25
[INFO] [stdout]    |
[INFO] [stdout] 84 |     let step_2_result = map.values().map(|i| *i).filter(|i| *i >= 2).count();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `copied` method: `map.values().copied()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day8.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | /         let result = ('a'..='g').filter(move |car| !already_known_cars.contains(car)).map(move |car| {
[INFO] [stdout] 16 | |             let mut next_cars = cars.clone();
[INFO] [stdout] 17 | |             next_cars.insert(next_car, car);
[INFO] [stdout] 18 | |             next_cars
[INFO] [stdout] 19 | |         }).collect::<Vec<_>>();
[INFO] [stdout]    | |_______________________________- unnecessary `let` binding
[INFO] [stdout] 20 |
[INFO] [stdout] 21 |           result
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 15 ~         
[INFO] [stdout] 16 |
[INFO] [stdout] 17 ~         ('a'..='g').filter(move |car| !already_known_cars.contains(car)).map(move |car| {
[INFO] [stdout] 18 +             let mut next_cars = cars.clone();
[INFO] [stdout] 19 +             next_cars.insert(next_car, car);
[INFO] [stdout] 20 +             next_cars
[INFO] [stdout] 21 +         }).collect::<Vec<_>>()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: iterating on a map's values
[INFO] [stdout]   --> src/day6.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     fishes.into_iter().fold(HashMap::<i32, Fish>::new(), |mut acc, fish| {
[INFO] [stdout] 31 | |         let actual_fish = acc.get(&fish.life).map(|fish| fish.clone()).unwrap_or(Fish {
[INFO] [stdout] 32 | |             life: fish.life,
[INFO] [stdout] 33 | |             count: 0
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     } ).into_iter()
[INFO] [stdout] 41 | |         .map(|(_, fish)| fish)
[INFO] [stdout]    | |______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_kv_map
[INFO] [stdout]    = note: `#[warn(clippy::iter_kv_map)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 30 ~     fishes.into_iter().fold(HashMap::<i32, Fish>::new(), |mut acc, fish| {
[INFO] [stdout] 31 +         let actual_fish = acc.get(&fish.life).map(|fish| fish.clone()).unwrap_or(Fish {
[INFO] [stdout] 32 +             life: fish.life,
[INFO] [stdout] 33 +             count: 0
[INFO] [stdout] 34 +         });
[INFO] [stdout] 35 +         acc.insert(fish.life, Fish {
[INFO] [stdout] 36 +             life: fish.life,
[INFO] [stdout] 37 +             count: actual_fish.count + fish.count
[INFO] [stdout] 38 +         });
[INFO] [stdout] 39 +         acc
[INFO] [stdout] 40 +     } ).into_values()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for cloning elements
[INFO] [stdout]   --> src/day6.rs:31:27
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let actual_fish = acc.get(&fish.life).map(|fish| fish.clone()).unwrap_or(Fish {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `acc.get(&fish.life).cloned()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day8.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | /         let count = outputs.into_iter().filter(|digit| digit.len() == 2 || digit.len() == 4 || digit.len() == 3 || digit.len() == 7)
[INFO] [stdout] 73 | |             .count() as u64;
[INFO] [stdout]    | |____________________________- unnecessary `let` binding
[INFO] [stdout] 74 |
[INFO] [stdout] 75 |           count
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 72 ~         
[INFO] [stdout] 73 |
[INFO] [stdout] 74 ~         outputs.into_iter().filter(|digit| digit.len() == 2 || digit.len() == 4 || digit.len() == 3 || digit.len() == 7)
[INFO] [stdout] 75 +             .count() as u64
[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/day6.rs:45:25
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn count_fishes(fishes: &Vec<Fish>) -> 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] 45 - fn count_fishes(fishes: &Vec<Fish>) -> u64 {
[INFO] [stdout] 45 + fn count_fishes(fishes: &[Fish]) -> u64 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `filter_map` with an identity function
[INFO] [stdout]   --> src/day9.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |         ].into_iter().filter_map(|d| d)
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: try: `flatten()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_map_identity
[INFO] [stdout]    = note: `#[warn(clippy::filter_map_identity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day8.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | /         let result = ('a'..='g').filter(move |car| !already_known_cars.contains(car)).map(move |car| {
[INFO] [stdout] 16 | |             let mut next_cars = cars.clone();
[INFO] [stdout] 17 | |             next_cars.insert(next_car, car);
[INFO] [stdout] 18 | |             next_cars
[INFO] [stdout] 19 | |         }).collect::<Vec<_>>();
[INFO] [stdout]    | |_______________________________- unnecessary `let` binding
[INFO] [stdout] 20 |
[INFO] [stdout] 21 |           result
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 15 ~         
[INFO] [stdout] 16 |
[INFO] [stdout] 17 ~         ('a'..='g').filter(move |car| !already_known_cars.contains(car)).map(move |car| {
[INFO] [stdout] 18 +             let mut next_cars = cars.clone();
[INFO] [stdout] 19 +             next_cars.insert(next_car, car);
[INFO] [stdout] 20 +             next_cars
[INFO] [stdout] 21 +         }).collect::<Vec<_>>()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day8.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 72 | /         let count = outputs.into_iter().filter(|digit| digit.len() == 2 || digit.len() == 4 || digit.len() == 3 || digit.len() == 7)
[INFO] [stdout] 73 | |             .count() as u64;
[INFO] [stdout]    | |____________________________- unnecessary `let` binding
[INFO] [stdout] 74 |
[INFO] [stdout] 75 |           count
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 72 ~         
[INFO] [stdout] 73 |
[INFO] [stdout] 74 ~         outputs.into_iter().filter(|digit| digit.len() == 2 || digit.len() == 4 || digit.len() == 3 || digit.len() == 7)
[INFO] [stdout] 75 +             .count() as u64
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `filter_map` with an identity function
[INFO] [stdout]   --> src/day9.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 |         ].into_iter().filter_map(|d| d)
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: try: `flatten()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_map_identity
[INFO] [stdout]    = note: `#[warn(clippy::filter_map_identity)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<&u32>` which implements the `Copy` trait
[INFO] [stdout]   --> src/day9.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let my_pt = *current_row.get(x).clone().unwrap();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_row.get(x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day9.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |               let other_points: Vec<_> = vec![
[INFO] [stdout]    |  ________________________________________^
[INFO] [stdout] 40 | |                 row_up.and_then(|row| row.get(x).clone()), // UP
[INFO] [stdout] 41 | |                 if x == 0 { None } else {current_row.get(x - 1)}, // LEFT
[INFO] [stdout] 42 | |                 current_row.get(x + 1), // RIGHT
[INFO] [stdout] 43 | |                 row_down.and_then(|row| row.get(x)), // DOWN
[INFO] [stdout] 44 | |             ].into_iter().filter_map(|d| d)
[INFO] [stdout] 45 | |                 .map(|d| *d)
[INFO] [stdout]    | |____________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] help: consider calling the dedicated `copied` method
[INFO] [stdout]    |
[INFO] [stdout] 39 ~             let other_points: Vec<_> = vec![
[INFO] [stdout] 40 +                 row_up.and_then(|row| row.get(x).clone()), // UP
[INFO] [stdout] 41 +                 if x == 0 { None } else {current_row.get(x - 1)}, // LEFT
[INFO] [stdout] 42 +                 current_row.get(x + 1), // RIGHT
[INFO] [stdout] 43 +                 row_down.and_then(|row| row.get(x)), // DOWN
[INFO] [stdout] 44 +             ].into_iter().filter_map(|d| d).copied()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `filter_map` with an identity function
[INFO] [stdout]   --> src/day9.rs:44:27
[INFO] [stdout]    |
[INFO] [stdout] 44 |             ].into_iter().filter_map(|d| d)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^ help: try: `flatten()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_map_identity
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<&u32>` which implements the `Copy` trait
[INFO] [stdout]   --> src/day9.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 row_up.and_then(|row| row.get(x).clone()), // UP
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `row.get(x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]  --> src/day10.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | /     match car {
[INFO] [stdout] 4 | |         '(' | '{' | '[' | '<' => true,
[INFO] [stdout] 5 | |         _ => false
[INFO] [stdout] 6 | |     }
[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] 3 -     match car {
[INFO] [stdout] 4 -         '(' | '{' | '[' | '<' => true,
[INFO] [stdout] 5 -         _ => false
[INFO] [stdout] 6 -     }
[INFO] [stdout] 3 +     matches!(car, '(' | '{' | '[' | '<')
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day10.rs:56:44
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let score: u128 = open.into_iter().map(|car| corresponding_close(car))
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `corresponding_close`
[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: redundant closure
[INFO] [stdout]   --> src/day10.rs:68:61
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let step1_result: u128 = values.clone().into_iter().map(|line| analyse(line))
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `analyse`
[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: redundant closure
[INFO] [stdout]   --> src/day10.rs:77:56
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut values: Vec<u128> = values.into_iter().map(|line| analyse(line))
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `analyse`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/day11.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             self.life = self.life + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.life += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day11.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             self.count_flash = self.count_flash + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.count_flash += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[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/day11.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn flashes(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[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] 31 - fn flashes(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[INFO] [stdout] 31 + fn flashes(octupuses: &mut [Vec<Octopus>]) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<&u32>` which implements the `Copy` trait
[INFO] [stdout]   --> src/day9.rs:38:26
[INFO] [stdout]    |
[INFO] [stdout] 38 |             let my_pt = *current_row.get(x).clone().unwrap();
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `current_row.get(x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]    = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you are using an explicit closure for copying elements
[INFO] [stdout]   --> src/day9.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |               let other_points: Vec<_> = vec![
[INFO] [stdout]    |  ________________________________________^
[INFO] [stdout] 40 | |                 row_up.and_then(|row| row.get(x).clone()), // UP
[INFO] [stdout] 41 | |                 if x == 0 { None } else {current_row.get(x - 1)}, // LEFT
[INFO] [stdout] 42 | |                 current_row.get(x + 1), // RIGHT
[INFO] [stdout] 43 | |                 row_down.and_then(|row| row.get(x)), // DOWN
[INFO] [stdout] 44 | |             ].into_iter().filter_map(|d| d)
[INFO] [stdout] 45 | |                 .map(|d| *d)
[INFO] [stdout]    | |____________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stdout] help: consider calling the dedicated `copied` method
[INFO] [stdout]    |
[INFO] [stdout] 39 ~             let other_points: Vec<_> = vec![
[INFO] [stdout] 40 +                 row_up.and_then(|row| row.get(x).clone()), // UP
[INFO] [stdout] 41 +                 if x == 0 { None } else {current_row.get(x - 1)}, // LEFT
[INFO] [stdout] 42 +                 current_row.get(x + 1), // RIGHT
[INFO] [stdout] 43 +                 row_down.and_then(|row| row.get(x)), // DOWN
[INFO] [stdout] 44 +             ].into_iter().filter_map(|d| d).copied()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of `filter_map` with an identity function
[INFO] [stdout]   --> src/day9.rs:44:27
[INFO] [stdout]    |
[INFO] [stdout] 44 |             ].into_iter().filter_map(|d| d)
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^ help: try: `flatten()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_map_identity
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `Option<&u32>` which implements the `Copy` trait
[INFO] [stdout]   --> src/day9.rs:40:39
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 row_up.and_then(|row| row.get(x).clone()), // UP
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `row.get(x)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day11.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let y = y + 0;
[INFO] [stdout]    |                 ^^^^^ help: consider reducing it to: `y`
[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: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day11.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn print(octopuses: &Vec<Vec<Octopus>>) {
[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] 66 - fn print(octopuses: &Vec<Vec<Octopus>>) {
[INFO] [stdout] 66 + fn print(octopuses: &[Vec<Octopus>]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]  --> src/day10.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | /     match car {
[INFO] [stdout] 4 | |         '(' | '{' | '[' | '<' => true,
[INFO] [stdout] 5 | |         _ => false
[INFO] [stdout] 6 | |     }
[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] 3 -     match car {
[INFO] [stdout] 4 -         '(' | '{' | '[' | '<' => true,
[INFO] [stdout] 5 -         _ => false
[INFO] [stdout] 6 -     }
[INFO] [stdout] 3 +     matches!(car, '(' | '{' | '[' | '<')
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day11.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         counter = counter + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `counter += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day10.rs:56:44
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let score: u128 = open.into_iter().map(|car| corresponding_close(car))
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `corresponding_close`
[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: redundant closure
[INFO] [stdout]   --> src/day10.rs:68:61
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let step1_result: u128 = values.clone().into_iter().map(|line| analyse(line))
[INFO] [stdout]    |                                                             ^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `analyse`
[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: redundant closure
[INFO] [stdout]   --> src/day10.rs:77:56
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let mut values: Vec<u128> = values.into_iter().map(|line| analyse(line))
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the function itself: `analyse`
[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: this boolean expression can be simplified
[INFO] [stdout]   --> src/day12.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |               if already_small && (!step2 || (
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 28 | |                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 | |                 ))  {
[INFO] [stdout]    | |__________________^
[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] help: try
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if !(!already_small || step2 && !self.already_visit_2_smal)  {
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if (self.already_visit_2_smal || !step2) && already_small  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/day12.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |               if already_small && (!step2 || (
[INFO] [stdout]    |  _________________________________^
[INFO] [stdout] 28 | |                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 | |                 ))  {
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if already_small && !(step2 && !self.already_visit_2_smal)  {
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if already_small && !step2 || self.already_visit_2_smal  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> src/day12.rs:26:56
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let already_small = next.to_lowercase() == next.to_string() && self.path.contains(next);
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^ help: try: `*next`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout]    = note: `#[warn(clippy::cmp_owned)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day11.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |             self.life = self.life + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.life += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> src/day12.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     is_final: next.to_string() == "end".to_string(),
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^ help: try: `*next`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> src/day12.rs:37:51
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     is_final: next.to_string() == "end".to_string(),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^ help: try: `"end"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day11.rs:22:13
[INFO] [stdout]    |
[INFO] [stdout] 22 |             self.count_flash = self.count_flash + 1;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.count_flash += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day12.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         .map(|line| (line.split("-").nth(0).unwrap().to_string(), line.split("-").nth(1).unwrap().to_string()))
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `line.split("-").next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout]    = note: `#[warn(clippy::iter_nth_zero)]` 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/day11.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn flashes(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[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] 31 - fn flashes(octupuses: &mut Vec<Vec<Octopus>>) -> bool {
[INFO] [stdout] 31 + fn flashes(octupuses: &mut [Vec<Octopus>]) -> bool {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this operation has no effect
[INFO] [stdout]   --> src/day11.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let y = y + 0;
[INFO] [stdout]    |                 ^^^^^ help: consider reducing it to: `y`
[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: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]  --> src/day13.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let is_x_fold = fold_instruction.split("=").nth(0).unwrap().ends_with("x");
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `fold_instruction.split("=").next()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]   --> src/day11.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn print(octopuses: &Vec<Vec<Octopus>>) {
[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] 66 - fn print(octopuses: &Vec<Vec<Octopus>>) {
[INFO] [stdout] 66 + fn print(octopuses: &[Vec<Octopus>]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day13.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     value.split(",").nth(0).unwrap().parse().unwrap(),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `value.split(",").next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day11.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         counter = counter + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `counter += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day14.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let key = line.split(" -> ").nth(0).unwrap().to_string();
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `line.split(" -> ").next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day14.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let key = (key.chars().nth(0).unwrap(), key.chars().nth(1).unwrap());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `key.chars().next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/day12.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |               if already_small && (!step2 || (
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 28 | |                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 | |                 ))  {
[INFO] [stdout]    | |__________________^
[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] help: try
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if !(!already_small || step2 && !self.already_visit_2_smal)  {
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if (self.already_visit_2_smal || !step2) && already_small  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/day12.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |               if already_small && (!step2 || (
[INFO] [stdout]    |  _________________________________^
[INFO] [stdout] 28 | |                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 | |                 ))  {
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if already_small && !(step2 && !self.already_visit_2_smal)  {
[INFO] [stdout]    |
[INFO] [stdout] 27 -             if already_small && (!step2 || (
[INFO] [stdout] 28 -                 step2 && self.already_visit_2_smal
[INFO] [stdout] 29 -                 ))  {
[INFO] [stdout] 27 +             if already_small && !step2 || self.already_visit_2_smal  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day14.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let value = line.split(" -> ").nth(1).unwrap().chars().nth(0).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `line.split(" -> ").nth(1).unwrap().chars().next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> src/day12.rs:26:56
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let already_small = next.to_lowercase() == next.to_string() && self.path.contains(next);
[INFO] [stdout]    |                                                        ^^^^^^^^^^^^^^^^ help: try: `*next`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout]    = note: `#[warn(clippy::cmp_owned)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `u128` is unnecessary
[INFO] [stdout]   --> src/day14.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |         ((c1, c2), 1 as u128)
[INFO] [stdout]    |                    ^^^^^^^^^ help: try: `1_u128`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> src/day12.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     is_final: next.to_string() == "end".to_string(),
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^ help: try: `*next`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]   --> src/day12.rs:37:51
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     is_final: next.to_string() == "end".to_string(),
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^^^^^ help: try: `"end"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day12.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         .map(|line| (line.split("-").nth(0).unwrap().to_string(), line.split("-").nth(1).unwrap().to_string()))
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `line.split("-").next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout]    = note: `#[warn(clippy::iter_nth_zero)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day14.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let step1_result = (*most_common - *less_common);
[INFO] [stdout]    |     ------------------------------------------------- unnecessary `let` binding
[INFO] [stdout] 78 |     step1_result
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 77 ~     
[INFO] [stdout] 78 ~     (*most_common - *less_common)
[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/day15.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn next(self, risks: &Vec<Vec<u32>>) -> Vec<Path> {
[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] 9 -     fn next(self, risks: &Vec<Vec<u32>>) -> Vec<Path> {
[INFO] [stdout] 9 +     fn next(self, risks: &[Vec<u32>]) -> Vec<Path> {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]  --> src/day13.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let is_x_fold = fold_instruction.split("=").nth(0).unwrap().ends_with("x");
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `fold_instruction.split("=").next()`
[INFO] [stdout]   |
[INFO] [stdout]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day15.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         new_risk = new_risk - 9
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `new_risk -= 9`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day13.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     value.split(",").nth(0).unwrap().parse().unwrap(),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `value.split(",").next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day14.rs:14:19
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let key = line.split(" -> ").nth(0).unwrap().to_string();
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `line.split(" -> ").next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day14.rs:15:20
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let key = (key.chars().nth(0).unwrap(), key.chars().nth(1).unwrap());
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `key.chars().next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/day14.rs:16:21
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let value = line.split(" -> ").nth(1).unwrap().chars().nth(0).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `line.split(" -> ").nth(1).unwrap().chars().next()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth_zero
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting integer literal to `u128` is unnecessary
[INFO] [stdout]   --> src/day14.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |         ((c1, c2), 1 as u128)
[INFO] [stdout]    |                    ^^^^^^^^^ help: try: `1_u128`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day16.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |       line.chars().map(|car|
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 26 | |         car_to_binary(car)
[INFO] [stdout]    | |__________________________^ help: replace the closure with the function itself: `car_to_binary`
[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: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day14.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     let step1_result = (*most_common - *less_common);
[INFO] [stdout]    |     ------------------------------------------------- unnecessary `let` binding
[INFO] [stdout] 78 |     step1_result
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 77 ~     
[INFO] [stdout] 78 ~     (*most_common - *less_common)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day16.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         result = result * 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: replace it with: `result *= 2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&Vec` instead of `&[_]` involves a new object where a slice will do
[INFO] [stdout]  --> src/day15.rs:9:26
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn next(self, risks: &Vec<Vec<u32>>) -> Vec<Path> {
[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] 9 -     fn next(self, risks: &Vec<Vec<u32>>) -> Vec<Path> {
[INFO] [stdout] 9 +     fn next(self, risks: &[Vec<u32>]) -> Vec<Path> {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> src/day16.rs:65:78
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     "001" => sub_packets.iter().map(|packet| packet.value()).fold(1, |acc,val| acc * val ),
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `product()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.iter().nth()` on a `Vec`
[INFO] [stdout]   --> src/day16.rs:70:38
[INFO] [stdout]    |
[INFO] [stdout] 70 |                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth
[INFO] [stdout]    = note: `#[warn(clippy::iter_nth)]` on by default
[INFO] [stdout] help: `get` is equivalent but more concise
[INFO] [stdout]    |
[INFO] [stdout] 70 -                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout] 70 +                         let second = sub_packets.get(1).unwrap().value();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day15.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         new_risk = new_risk - 9
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `new_risk -= 9`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.iter().nth()` on a `Vec`
[INFO] [stdout]   --> src/day16.rs:79:38
[INFO] [stdout]    |
[INFO] [stdout] 79 |                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth
[INFO] [stdout] help: `get` is equivalent but more concise
[INFO] [stdout]    |
[INFO] [stdout] 79 -                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout] 79 +                         let second = sub_packets.get(1).unwrap().value();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.iter().nth()` on a `Vec`
[INFO] [stdout]   --> src/day16.rs:88:38
[INFO] [stdout]    |
[INFO] [stdout] 88 |                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth
[INFO] [stdout] help: `get` is equivalent but more concise
[INFO] [stdout]    |
[INFO] [stdout] 88 -                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout] 88 +                         let second = sub_packets.get(1).unwrap().value();
[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/day16.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 | fn binary_to_dec(data: &String) -> u128 {
[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] 103 - fn binary_to_dec(data: &String) -> u128 {
[INFO] [stdout] 103 + fn binary_to_dec(data: &str) -> u128 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `filter(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(..)` instead
[INFO] [stdout]    --> src/day16.rs:114:15
[INFO] [stdout]     |
[INFO] [stdout] 114 |       let hex = input.split("\n").map(|v| v.to_string())
[INFO] [stdout]     |  _______________^
[INFO] [stdout] 115 | |         .filter(|line| !line.is_empty())
[INFO] [stdout] 116 | |         .next().unwrap();
[INFO] [stdout]     | |_______________^ help: try: `input.split("\n").map(|v| v.to_string()).find(|line| !line.is_empty())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     index = index + 6;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 6`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]    --> src/day16.rs:153:34
[INFO] [stdout]     |
[INFO] [stdout] 153 |     let packet = if packet_id == "100".to_string() {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: try: `"100"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day16.rs:155:55
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let (packet_bits, new_index) = decode_literal(&binary, index);
[INFO] [stdout]     |                                                       ^^^^^^^ help: change this to: `binary`
[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: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         index = index + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         index = index + size_size_field;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `index += size_size_field`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day16.rs:179:50
[INFO] [stdout]     |
[INFO] [stdout] 179 |             let (sub_packet, new_index) = decode(&binary, index);
[INFO] [stdout]     |                                                  ^^^^^^^ help: change this to: `binary`
[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: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]    --> src/day16.rs:193:27
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn decode_literal(binary: &String, mut index: usize) -> (Vec<String>, 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] 193 - fn decode_literal(binary: &String, mut index: usize) -> (Vec<String>, usize) {
[INFO] [stdout] 193 + fn decode_literal(binary: &str, mut index: usize) -> (Vec<String>, usize) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]   --> src/day16.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 |       line.chars().map(|car|
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 26 | |         car_to_binary(car)
[INFO] [stdout]    | |__________________________^ help: replace the closure with the function itself: `car_to_binary`
[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: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         index = index + 5;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 5`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day16.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         result = result * 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: replace it with: `result *= 2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:200:5
[INFO] [stdout]     |
[INFO] [stdout] 200 |     index = index + 5;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 5`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `.fold` can be written more succinctly using another method
[INFO] [stdout]   --> src/day16.rs:65:78
[INFO] [stdout]    |
[INFO] [stdout] 65 |                     "001" => sub_packets.iter().map(|packet| packet.value()).fold(1, |acc,val| acc * val ),
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `product()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stdout]    = note: `#[warn(clippy::unnecessary_fold)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.iter().nth()` on a `Vec`
[INFO] [stdout]   --> src/day16.rs:70:38
[INFO] [stdout]    |
[INFO] [stdout] 70 |                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth
[INFO] [stdout]    = note: `#[warn(clippy::iter_nth)]` on by default
[INFO] [stdout] help: `get` is equivalent but more concise
[INFO] [stdout]    |
[INFO] [stdout] 70 -                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout] 70 +                         let second = sub_packets.get(1).unwrap().value();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.iter().nth()` on a `Vec`
[INFO] [stdout]   --> src/day16.rs:79:38
[INFO] [stdout]    |
[INFO] [stdout] 79 |                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth
[INFO] [stdout] help: `get` is equivalent but more concise
[INFO] [stdout]    |
[INFO] [stdout] 79 -                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout] 79 +                         let second = sub_packets.get(1).unwrap().value();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.iter().nth()` on a `Vec`
[INFO] [stdout]   --> src/day16.rs:88:38
[INFO] [stdout]    |
[INFO] [stdout] 88 |                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth
[INFO] [stdout] help: `get` is equivalent but more concise
[INFO] [stdout]    |
[INFO] [stdout] 88 -                         let second = sub_packets.iter().nth(1).unwrap().value();
[INFO] [stdout] 88 +                         let second = sub_packets.get(1).unwrap().value();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `filter(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(..)` instead
[INFO] [stdout]   --> src/day17.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |       let line = input.split("\n").map(|v| v.to_string())
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 53 | |         .filter(|line| !line.is_empty())
[INFO] [stdout] 54 | |         .next().unwrap();
[INFO] [stdout]    | |_______________^ help: try: `input.split("\n").map(|v| v.to_string()).find(|line| !line.is_empty())`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]    --> src/day16.rs:103:24
[INFO] [stdout]     |
[INFO] [stdout] 103 | fn binary_to_dec(data: &String) -> u128 {
[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] 103 - fn binary_to_dec(data: &String) -> u128 {
[INFO] [stdout] 103 + fn binary_to_dec(data: &str) -> u128 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `filter(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(..)` instead
[INFO] [stdout]    --> src/day16.rs:114:15
[INFO] [stdout]     |
[INFO] [stdout] 114 |       let hex = input.split("\n").map(|v| v.to_string())
[INFO] [stdout]     |  _______________^
[INFO] [stdout] 115 | |         .filter(|line| !line.is_empty())
[INFO] [stdout] 116 | |         .next().unwrap();
[INFO] [stdout]     | |_______________^ help: try: `input.split("\n").map(|v| v.to_string()).find(|line| !line.is_empty())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     index = index + 6;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 6`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this creates an owned instance just for comparison
[INFO] [stdout]    --> src/day16.rs:153:34
[INFO] [stdout]     |
[INFO] [stdout] 153 |     let packet = if packet_id == "100".to_string() {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^ help: try: `"100"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day16.rs:155:55
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let (packet_bits, new_index) = decode_literal(&binary, index);
[INFO] [stdout]     |                                                       ^^^^^^^ help: change this to: `binary`
[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: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |         index = index + 1;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 172 |         index = index + size_size_field;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `index += size_size_field`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this expression creates a reference which is immediately dereferenced by the compiler
[INFO] [stdout]    --> src/day16.rs:179:50
[INFO] [stdout]     |
[INFO] [stdout] 179 |             let (sub_packet, new_index) = decode(&binary, index);
[INFO] [stdout]     |                                                  ^^^^^^^ help: change this to: `binary`
[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: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]    --> src/day16.rs:193:27
[INFO] [stdout]     |
[INFO] [stdout] 193 | fn decode_literal(binary: &String, mut index: usize) -> (Vec<String>, 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] 193 - fn decode_literal(binary: &String, mut index: usize) -> (Vec<String>, usize) {
[INFO] [stdout] 193 + fn decode_literal(binary: &str, mut index: usize) -> (Vec<String>, usize) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         index = index + 5;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 5`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]    --> src/day16.rs:200:5
[INFO] [stdout]     |
[INFO] [stdout] 200 |     index = index + 5;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ help: replace it with: `index += 5`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `filter(..).next()` on an `Iterator`. This is more succinctly expressed by calling `.find(..)` instead
[INFO] [stdout]   --> src/day17.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |       let line = input.split("\n").map(|v| v.to_string())
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 53 | |         .filter(|line| !line.is_empty())
[INFO] [stdout] 54 | |         .next().unwrap();
[INFO] [stdout]    | |_______________^ help: try: `input.split("\n").map(|v| v.to_string()).find(|line| !line.is_empty())`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#filter_next
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `before_parsing.left` after checking its variant with `is_some`
[INFO] [stdout]    --> src/day18.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 294 | ...                   if before_parsing.left.is_some() {
[INFO] [stdout]     |                       -------------------------------- help: try: `if let Some(<item>) = before_parsing.left`
[INFO] [stdout] ...
[INFO] [stdout] 297 | ...                           left: before_parsing.left.unwrap(),
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` has identical blocks
[INFO] [stdout]    --> src/day18.rs:263:34
[INFO] [stdout]     |
[INFO] [stdout] 263 |               } else if car == ']' {
[INFO] [stdout]     |  __________________________________^
[INFO] [stdout] 264 | |                 // do nothing
[INFO] [stdout] 265 | |             } else if car == ',' {
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] note: same as this
[INFO] [stdout]    --> src/day18.rs:265:34
[INFO] [stdout]     |
[INFO] [stdout] 265 |               } else if car == ',' {
[INFO] [stdout]     |  __________________________________^
[INFO] [stdout] 266 | |                 // do nothing
[INFO] [stdout] 267 | |             } else {
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#if_same_then_else
[INFO] [stdout]     = note: `#[warn(clippy::if_same_then_else)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/day19.rs:175:52
[INFO] [stdout]     |
[INFO] [stdout] 175 |             beacons: input.split("\n").skip(1).map(|input| Beacon::new(input)).collect()
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Beacon::new`
[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: redundant closure
[INFO] [stdout]    --> src/day19.rs:205:14
[INFO] [stdout]     |
[INFO] [stdout] 205 |         .map(|input| Scanner::new(input))
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Scanner::new`
[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: called `unwrap` on `before_parsing.left` after checking its variant with `is_some`
[INFO] [stdout]    --> src/day18.rs:297:43
[INFO] [stdout]     |
[INFO] [stdout] 294 | ...                   if before_parsing.left.is_some() {
[INFO] [stdout]     |                       -------------------------------- help: try: `if let Some(<item>) = before_parsing.left`
[INFO] [stdout] ...
[INFO] [stdout] 297 | ...                           left: before_parsing.left.unwrap(),
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` has identical blocks
[INFO] [stdout]    --> src/day18.rs:263:34
[INFO] [stdout]     |
[INFO] [stdout] 263 |               } else if car == ']' {
[INFO] [stdout]     |  __________________________________^
[INFO] [stdout] 264 | |                 // do nothing
[INFO] [stdout] 265 | |             } else if car == ',' {
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] note: same as this
[INFO] [stdout]    --> src/day18.rs:265:34
[INFO] [stdout]     |
[INFO] [stdout] 265 |               } else if car == ',' {
[INFO] [stdout]     |  __________________________________^
[INFO] [stdout] 266 | |                 // do nothing
[INFO] [stdout] 267 | |             } else {
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#if_same_then_else
[INFO] [stdout]     = note: `#[warn(clippy::if_same_then_else)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day20.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         result = result * 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: replace it with: `result *= 2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day20.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn binary_to_dec(data: &String) -> 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] 20 - fn binary_to_dec(data: &String) -> usize {
[INFO] [stdout] 20 + fn binary_to_dec(data: &str) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day20.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     let result = binary.into_iter().enumerate().map(|(index, data)|
[INFO] [stdout] 26 | |         data * pow2(index)
[INFO] [stdout] 27 | |     ).sum();
[INFO] [stdout]    | |____________- unnecessary `let` binding
[INFO] [stdout] 28 |
[INFO] [stdout] 29 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 25 ~     
[INFO] [stdout] 26 |
[INFO] [stdout] 27 ~     binary.into_iter().enumerate().map(|(index, data)|
[INFO] [stdout] 28 +         data * pow2(index)
[INFO] [stdout] 29 +     ).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.map.get(0)`
[INFO] [stdout]   --> src/day20.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |         if x >= 0 && x < self.map.get(0).unwrap().len() as i32
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: try: `self.map.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]    = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day20.rs:43:57
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn next_car(&self, x: usize, y: usize, enhancement: &String) -> char {
[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 -     fn next_car(&self, x: usize, y: usize, enhancement: &String) -> char {
[INFO] [stdout] 43 +     fn next_car(&self, x: usize, y: usize, enhancement: &str) -> char {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.map.get(0)`
[INFO] [stdout]   --> src/day20.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let len_x = self.map.get(0).unwrap().len();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^ help: try: `self.map.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.map.get(0)`
[INFO] [stdout]   --> src/day20.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let len_x: i32 = self.map.get(0).unwrap().len() as i32;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: try: `self.map.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/day19.rs:175:52
[INFO] [stdout]     |
[INFO] [stdout] 175 |             beacons: input.split("\n").skip(1).map(|input| Beacon::new(input)).collect()
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Beacon::new`
[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: manual implementation of an assign operation
[INFO] [stdout]   --> src/day21.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         self.current = self.current + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.current += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/day19.rs:205:14
[INFO] [stdout]     |
[INFO] [stdout] 205 |         .map(|input| Scanner::new(input))
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Scanner::new`
[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: accessing first element with `self.players.get(0)`
[INFO] [stdout]   --> src/day21.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let next_player = self.players.get(0).unwrap();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: try: `self.players.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `players.get(0)`
[INFO] [stdout]    --> src/day21.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let loser = players.get(0).unwrap().clone();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: try: `players.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day20.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         result = result * 2;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^ help: replace it with: `result *= 2`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day20.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn binary_to_dec(data: &String) -> 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] 20 - fn binary_to_dec(data: &String) -> usize {
[INFO] [stdout] 20 + fn binary_to_dec(data: &str) -> usize {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returning the result of a `let` binding from a block
[INFO] [stdout]   --> src/day20.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     let result = binary.into_iter().enumerate().map(|(index, data)|
[INFO] [stdout] 26 | |         data * pow2(index)
[INFO] [stdout] 27 | |     ).sum();
[INFO] [stdout]    | |____________- unnecessary `let` binding
[INFO] [stdout] 28 |
[INFO] [stdout] 29 |       result
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stdout] help: return the expression directly
[INFO] [stdout]    |
[INFO] [stdout] 25 ~     
[INFO] [stdout] 26 |
[INFO] [stdout] 27 ~     binary.into_iter().enumerate().map(|(index, data)|
[INFO] [stdout] 28 +         data * pow2(index)
[INFO] [stdout] 29 +     ).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.map.get(0)`
[INFO] [stdout]   --> src/day20.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |         if x >= 0 && x < self.map.get(0).unwrap().len() as i32
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: try: `self.map.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout]    = note: `#[warn(clippy::get_first)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: writing `&String` instead of `&str` involves a new object where a slice will do
[INFO] [stdout]   --> src/day20.rs:43:57
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn next_car(&self, x: usize, y: usize, enhancement: &String) -> char {
[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 -     fn next_car(&self, x: usize, y: usize, enhancement: &String) -> char {
[INFO] [stdout] 43 +     fn next_car(&self, x: usize, y: usize, enhancement: &str) -> char {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.map.get(0)`
[INFO] [stdout]   --> src/day20.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let len_x = self.map.get(0).unwrap().len();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^ help: try: `self.map.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `self.map.get(0)`
[INFO] [stdout]   --> src/day20.rs:72:26
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let len_x: i32 = self.map.get(0).unwrap().len() as i32;
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^ help: try: `self.map.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of an assign operation
[INFO] [stdout]   --> src/day21.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         self.current = self.current + 1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.current += 1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `RangeInclusive::contains` implementation
[INFO] [stdout]    --> src/day22.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pos >= -50 && pos <= 50
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use: `(-50..=50).contains(&pos)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]     = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/day22.rs:157:14
[INFO] [stdout]     |
[INFO] [stdout] 157 |         .map(|line| Step::new(line))
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Step::new`
[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: accessing first element with `self.players.get(0)`
[INFO] [stdout]   --> src/day21.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |             let next_player = self.players.get(0).unwrap();
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^ help: try: `self.players.first()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/day8.rs:52:76
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let possible_values: HashSet<&str> = digits.iter().map(|(_, cars)| cars.clone()).collect();
[INFO] [stdout]    |                                                                            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: accessing first element with `players.get(0)`
[INFO] [stdout]    --> src/day21.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |     let loser = players.get(0).unwrap().clone();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^ help: try: `players.first()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_first
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual `RangeInclusive::contains` implementation
[INFO] [stdout]    --> src/day22.rs:151:5
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pos >= -50 && pos <= 50
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^ help: use: `(-50..=50).contains(&pos)`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains
[INFO] [stdout]     = note: `#[warn(clippy::manual_range_contains)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant closure
[INFO] [stdout]    --> src/day22.rs:157:14
[INFO] [stdout]     |
[INFO] [stdout] 157 |         .map(|line| Step::new(line))
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: replace the closure with the associated function itself: `Step::new`
[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: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/day8.rs:52:76
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let possible_values: HashSet<&str> = digits.iter().map(|(_, cars)| cars.clone()).collect();
[INFO] [stdout]    |                                                                            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "8cc058b9fdb6617f62a3ea4b3f90682f5dece37f5b0e3b089ab4958e3bb9f940", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc058b9fdb6617f62a3ea4b3f90682f5dece37f5b0e3b089ab4958e3bb9f940", kill_on_drop: false }`
[INFO] [stdout] 8cc058b9fdb6617f62a3ea4b3f90682f5dece37f5b0e3b089ab4958e3bb9f940