[INFO] cloning repository https://github.com/thijsheijden/aoc-2022
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thijsheijden/aoc-2022" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthijsheijden%2Faoc-2022", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthijsheijden%2Faoc-2022'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad958e08d8ee9fa7e6c2b4e815d55b57ed36c5c3
[INFO] linting thijsheijden/aoc-2022 against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthijsheijden%2Faoc-2022" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thijsheijden/aoc-2022
[INFO] finished tweaking git repo https://github.com/thijsheijden/aoc-2022
[INFO] tweaked toml for git repo https://github.com/thijsheijden/aoc-2022 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thijsheijden/aoc-2022 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/thijsheijden/aoc-2022 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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f1d2342c072b42115013d8258cffc051e98188a947f7548b1982bd6ec8a058d2
[INFO] running `Command { std: "docker" "start" "-a" "f1d2342c072b42115013d8258cffc051e98188a947f7548b1982bd6ec8a058d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1d2342c072b42115013d8258cffc051e98188a947f7548b1982bd6ec8a058d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1d2342c072b42115013d8258cffc051e98188a947f7548b1982bd6ec8a058d2", kill_on_drop: false }`
[INFO] [stdout] f1d2342c072b42115013d8258cffc051e98188a947f7548b1982bd6ec8a058d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c104700f74c05d4edfe71b2ee9012ab818de785641f3fc8951cf28cfe32f9418
[INFO] running `Command { std: "docker" "start" "-a" "c104700f74c05d4edfe71b2ee9012ab818de785641f3fc8951cf28cfe32f9418", kill_on_drop: false }`
[INFO] [stderr]     Checking aoc-2022 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `hash_set::Intersection`
[INFO] [stdout]  --> src/days/day_3.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{HashSet, hash_set::Intersection}};
[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: `hash_set::Intersection`
[INFO] [stdout]  --> src/days/day_3.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{HashSet, hash_set::Intersection}};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/days/day_2.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     _ => return 0,
[INFO] [stdout]    |     ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/days/day_2.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Move::Rock => return 1,
[INFO] [stdout]    |     ---------- matches some of the same values
[INFO] [stdout] 52 |     Move::Paper => return 2,
[INFO] [stdout]    |     ----------- matches some of the same values
[INFO] [stdout] 53 |     Move::Scissors => return 3,
[INFO] [stdout]    |     -------------- matches some of the same values
[INFO] [stdout] 54 |     _ => return 0,
[INFO] [stdout]    |     ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/days/day_5.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     for i in 0..instruction_numbers[0] {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/days/day_6.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |   let mut window: &str = "";
[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: `window`
[INFO] [stdout]   --> src/days/day_6.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |   let mut window: &str = "";
[INFO] [stdout]    |       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/days/day_6.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |   let mut window: &str = "";
[INFO] [stdout]    |       ----^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window`
[INFO] [stdout]   --> src/days/day_6.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |   let mut window: &str = "";
[INFO] [stdout]    |       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[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 `solve_1` is never used
[INFO] [stdout]   --> src/days/day_1.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_1.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_2.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_2.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_2.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score_for_move` is never used
[INFO] [stdout]   --> src/days/day_2.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn score_for_move(m: Move) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GameResult` is never used
[INFO] [stdout]   --> src/days/day_2.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 | enum GameResult {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]   --> src/days/day_2.rs:67:6
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum Move {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `win_game` is never used
[INFO] [stdout]   --> src/days/day_2.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn win_game(m: (Move, Move)) -> GameResult {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `game_result_to_score` is never used
[INFO] [stdout]   --> src/days/day_2.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn game_result_to_score(result: GameResult) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_to_move` is never used
[INFO] [stdout]   --> src/days/day_2.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn char_to_move(m: char) -> Move {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_to_game_result` is never used
[INFO] [stdout]    --> src/days/day_2.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn char_to_game_result(c: char) -> GameResult {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_to_get_game_result` is never used
[INFO] [stdout]    --> src/days/day_2.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn move_to_get_game_result(result: GameResult, opponent_move: Move) -> Move {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_3.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_3.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_3.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_4.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_4.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_4.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_elf_ranges` is never used
[INFO] [stdout]   --> src/days/day_4.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn get_elf_ranges(input: &str) -> Vec<Vec<Vec<i32>>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_5.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STACKS` is never used
[INFO] [stdout]   --> src/days/day_5.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const STACKS: usize = 9;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_5.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_5.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/helpers/input.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   return fs::read_to_string(file_path).expect("Should have been able to read file");
[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] 4 -   return fs::read_to_string(file_path).expect("Should have been able to read file");
[INFO] [stdout] 4 +   fs::read_to_string(file_path).expect("Should have been able to read file")
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/days/day_2.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let the_moves: Vec<char> = m.split(" ").map(|x| x.chars().nth(0).unwrap()).collect();
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `x.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]    = note: `#[warn(clippy::iter_nth_zero)]` 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/days/day_2.rs:36:53
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let the_moves: Vec<char> = m.split(" ").map(|x| x.chars().nth(0).unwrap()).collect();
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `x.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: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Move::Rock => return 1,
[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] 51 -     Move::Rock => return 1,
[INFO] [stdout] 51 +     Move::Rock => 1,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:52:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |     Move::Paper => return 2,
[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] 52 -     Move::Paper => return 2,
[INFO] [stdout] 52 +     Move::Paper => 2,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |     Move::Scissors => return 3,
[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] 53 -     Move::Scissors => return 3,
[INFO] [stdout] 53 +     Move::Scissors => 3,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     _ => 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] 54 -     _ => return 0,
[INFO] [stdout] 54 +     _ => 0,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |     (a, b) if a == b => return GameResult::Draw,
[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] 76 -     (a, b) if a == b => return GameResult::Draw,
[INFO] [stdout] 76 +     (a, b) if a == b => GameResult::Draw,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:77:34
[INFO] [stdout]    |
[INFO] [stdout] 77 |     (Move::Rock, Move::Paper) => return GameResult::Win,
[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] 77 -     (Move::Rock, Move::Paper) => return GameResult::Win,
[INFO] [stdout] 77 +     (Move::Rock, Move::Paper) => GameResult::Win,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:78:37
[INFO] [stdout]    |
[INFO] [stdout] 78 |     (Move::Rock, Move::Scissors) => return GameResult::Lose,
[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] 78 -     (Move::Rock, Move::Scissors) => return GameResult::Lose,
[INFO] [stdout] 78 +     (Move::Rock, Move::Scissors) => GameResult::Lose,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |     (Move::Paper, Move::Rock) => return GameResult::Lose,
[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] 79 -     (Move::Paper, Move::Rock) => return GameResult::Lose,
[INFO] [stdout] 79 +     (Move::Paper, Move::Rock) => GameResult::Lose,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:80:38
[INFO] [stdout]    |
[INFO] [stdout] 80 |     (Move::Paper, Move::Scissors) => return GameResult::Win,
[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] 80 -     (Move::Paper, Move::Scissors) => return GameResult::Win,
[INFO] [stdout] 80 +     (Move::Paper, Move::Scissors) => GameResult::Win,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:81:37
[INFO] [stdout]    |
[INFO] [stdout] 81 |     (Move::Scissors, Move::Rock) => return GameResult::Win,
[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] 81 -     (Move::Scissors, Move::Rock) => return GameResult::Win,
[INFO] [stdout] 81 +     (Move::Scissors, Move::Rock) => GameResult::Win,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:82:38
[INFO] [stdout]    |
[INFO] [stdout] 82 |     (Move::Scissors, Move::Paper) => return GameResult::Lose,
[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] 82 -     (Move::Scissors, Move::Paper) => return GameResult::Lose,
[INFO] [stdout] 82 +     (Move::Scissors, Move::Paper) => GameResult::Lose,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 |     _ => return GameResult::Lose
[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] 83 -     _ => return GameResult::Lose
[INFO] [stdout] 83 +     _ => GameResult::Lose
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:97:16
[INFO] [stdout]    |
[INFO] [stdout] 97 |     'A'|'X' => return Move::Rock,
[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] 97 -     'A'|'X' => return Move::Rock,
[INFO] [stdout] 97 +     'A'|'X' => Move::Rock,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 98 |     'B'|'Y' => return Move::Paper,
[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] 98 -     'B'|'Y' => return Move::Paper,
[INFO] [stdout] 98 +     'B'|'Y' => Move::Paper,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:99:16
[INFO] [stdout]    |
[INFO] [stdout] 99 |     'C'|'Z' => return Move::Scissors,
[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] 99 -     'C'|'Z' => return Move::Scissors,
[INFO] [stdout] 99 +     'C'|'Z' => Move::Scissors,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/days/day_2.rs:100:10
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => return Move::Rock,
[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] 100 -     _ => return Move::Rock,
[INFO] [stdout] 100 +     _ => Move::Rock,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_4.rs:72:3
[INFO] [stdout]    |
[INFO] [stdout] 72 |   return section_start_end_per_pair;
[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] 72 -   return section_start_end_per_pair;
[INFO] [stdout] 72 +   section_start_end_per_pair
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/days/day_5.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if !top_crate_char.is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `top_crate_char.is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `top_crate_char` after checking its variant with `is_none`
[INFO] [stdout]   --> src/days/day_5.rs:62:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if !top_crate_char.is_none() {
[INFO] [stdout]    |             ------------------------ the check is happening here
[INFO] [stdout] 62 |             answer.push(*top_crate_char.unwrap());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: try using `match`
[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: unreachable pattern
[INFO] [stdout]   --> src/days/day_2.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 |     _ => return 0,
[INFO] [stdout]    |     ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/days/day_2.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Move::Rock => return 1,
[INFO] [stdout]    |     ---------- matches some of the same values
[INFO] [stdout] 52 |     Move::Paper => return 2,
[INFO] [stdout]    |     ----------- matches some of the same values
[INFO] [stdout] 53 |     Move::Scissors => return 3,
[INFO] [stdout]    |     -------------- matches some of the same values
[INFO] [stdout] 54 |     _ => return 0,
[INFO] [stdout]    |     ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/days/day_5.rs:127:12
[INFO] [stdout]     |
[INFO] [stdout] 127 |         if !top_crate_char.is_none() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `top_crate_char.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `top_crate_char` after checking its variant with `is_none`
[INFO] [stdout]    --> src/days/day_5.rs:128:26
[INFO] [stdout]     |
[INFO] [stdout] 127 |         if !top_crate_char.is_none() {
[INFO] [stdout]     |             ------------------------ the check is happening here
[INFO] [stdout] 128 |             answer.push(*top_crate_char.unwrap());
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]   --> src/days/day_6.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     match unique_chars(window) {
[INFO] [stdout] 24 | |       None => break,
[INFO] [stdout] 25 | |       Some(_) => (),
[INFO] [stdout] 26 | |     }
[INFO] [stdout]    | |_____^ help: try: `if unique_chars(window) == None { break }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]    = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]   --> src/days/day_6.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     match unique_chars(window) {
[INFO] [stdout] 46 | |       None => break,
[INFO] [stdout] 47 | |       Some(_) => (),
[INFO] [stdout] 48 | |     }
[INFO] [stdout]    | |_____^ help: try: `if unique_chars(window) == None { break }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/days/day_5.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     for i in 0..instruction_numbers[0] {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/days/day_6.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |   let mut window: &str = "";
[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: `window`
[INFO] [stdout]   --> src/days/day_6.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |   let mut window: &str = "";
[INFO] [stdout]    |       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/days/day_6.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |   let mut window: &str = "";
[INFO] [stdout]    |       ----^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `window`
[INFO] [stdout]   --> src/days/day_6.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 |   let mut window: &str = "";
[INFO] [stdout]    |       ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_window`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[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 `solve_1` is never used
[INFO] [stdout]   --> src/days/day_1.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_1.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_2.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_2.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_2.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `score_for_move` is never used
[INFO] [stdout]   --> src/days/day_2.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn score_for_move(m: Move) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `GameResult` is never used
[INFO] [stdout]   --> src/days/day_2.rs:60:6
[INFO] [stdout]    |
[INFO] [stdout] 60 | enum GameResult {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]   --> src/days/day_2.rs:67:6
[INFO] [stdout]    |
[INFO] [stdout] 67 | enum Move {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `win_game` is never used
[INFO] [stdout]   --> src/days/day_2.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn win_game(m: (Move, Move)) -> GameResult {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `game_result_to_score` is never used
[INFO] [stdout]   --> src/days/day_2.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn game_result_to_score(result: GameResult) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_to_move` is never used
[INFO] [stdout]   --> src/days/day_2.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn char_to_move(m: char) -> Move {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `char_to_game_result` is never used
[INFO] [stdout]    --> src/days/day_2.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn char_to_game_result(c: char) -> GameResult {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_to_get_game_result` is never used
[INFO] [stdout]    --> src/days/day_2.rs:115:4
[INFO] [stdout]     |
[INFO] [stdout] 115 | fn move_to_get_game_result(result: GameResult, opponent_move: Move) -> Move {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_3.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_3.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_3.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_4.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_4.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_4.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_elf_ranges` is never used
[INFO] [stdout]   --> src/days/day_4.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn get_elf_ranges(input: &str) -> Vec<Vec<Vec<i32>>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve` is never used
[INFO] [stdout]  --> src/days/day_5.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn solve(test_input: bool) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STACKS` is never used
[INFO] [stdout]   --> src/days/day_5.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | const STACKS: usize = 9;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_1` is never used
[INFO] [stdout]   --> src/days/day_5.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn solve_1(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_2` is never used
[INFO] [stdout]   --> src/days/day_5.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn solve_2(input: &str) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]  --> src/helpers/input.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   return fs::read_to_string(file_path).expect("Should have been able to read file");
[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] 4 -   return fs::read_to_string(file_path).expect("Should have been able to read file");
[INFO] [stdout] 4 +   fs::read_to_string(file_path).expect("Should have been able to read file")
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `.nth(0)` on a `std::iter::Iterator`, when `.next()` is equivalent
[INFO] [stdout]   --> src/days/day_2.rs:20:53
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let the_moves: Vec<char> = m.split(" ").map(|x| x.chars().nth(0).unwrap()).collect();
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `x.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]    = note: `#[warn(clippy::iter_nth_zero)]` 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/days/day_2.rs:36:53
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let the_moves: Vec<char> = m.split(" ").map(|x| x.chars().nth(0).unwrap()).collect();
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^ help: try calling `.next()` instead of `.nth(0)`: `x.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: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:51:19
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Move::Rock => return 1,
[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] 51 -     Move::Rock => return 1,
[INFO] [stdout] 51 +     Move::Rock => 1,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:52:20
[INFO] [stdout]    |
[INFO] [stdout] 52 |     Move::Paper => return 2,
[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] 52 -     Move::Paper => return 2,
[INFO] [stdout] 52 +     Move::Paper => 2,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:53:23
[INFO] [stdout]    |
[INFO] [stdout] 53 |     Move::Scissors => return 3,
[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] 53 -     Move::Scissors => return 3,
[INFO] [stdout] 53 +     Move::Scissors => 3,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     _ => 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] 54 -     _ => return 0,
[INFO] [stdout] 54 +     _ => 0,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:76:25
[INFO] [stdout]    |
[INFO] [stdout] 76 |     (a, b) if a == b => return GameResult::Draw,
[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] 76 -     (a, b) if a == b => return GameResult::Draw,
[INFO] [stdout] 76 +     (a, b) if a == b => GameResult::Draw,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:77:34
[INFO] [stdout]    |
[INFO] [stdout] 77 |     (Move::Rock, Move::Paper) => return GameResult::Win,
[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] 77 -     (Move::Rock, Move::Paper) => return GameResult::Win,
[INFO] [stdout] 77 +     (Move::Rock, Move::Paper) => GameResult::Win,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:78:37
[INFO] [stdout]    |
[INFO] [stdout] 78 |     (Move::Rock, Move::Scissors) => return GameResult::Lose,
[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] 78 -     (Move::Rock, Move::Scissors) => return GameResult::Lose,
[INFO] [stdout] 78 +     (Move::Rock, Move::Scissors) => GameResult::Lose,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:79:34
[INFO] [stdout]    |
[INFO] [stdout] 79 |     (Move::Paper, Move::Rock) => return GameResult::Lose,
[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] 79 -     (Move::Paper, Move::Rock) => return GameResult::Lose,
[INFO] [stdout] 79 +     (Move::Paper, Move::Rock) => GameResult::Lose,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:80:38
[INFO] [stdout]    |
[INFO] [stdout] 80 |     (Move::Paper, Move::Scissors) => return GameResult::Win,
[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] 80 -     (Move::Paper, Move::Scissors) => return GameResult::Win,
[INFO] [stdout] 80 +     (Move::Paper, Move::Scissors) => GameResult::Win,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:81:37
[INFO] [stdout]    |
[INFO] [stdout] 81 |     (Move::Scissors, Move::Rock) => return GameResult::Win,
[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] 81 -     (Move::Scissors, Move::Rock) => return GameResult::Win,
[INFO] [stdout] 81 +     (Move::Scissors, Move::Rock) => GameResult::Win,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:82:38
[INFO] [stdout]    |
[INFO] [stdout] 82 |     (Move::Scissors, Move::Paper) => return GameResult::Lose,
[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] 82 -     (Move::Scissors, Move::Paper) => return GameResult::Lose,
[INFO] [stdout] 82 +     (Move::Scissors, Move::Paper) => GameResult::Lose,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 |     _ => return GameResult::Lose
[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] 83 -     _ => return GameResult::Lose
[INFO] [stdout] 83 +     _ => GameResult::Lose
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:97:16
[INFO] [stdout]    |
[INFO] [stdout] 97 |     'A'|'X' => return Move::Rock,
[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] 97 -     'A'|'X' => return Move::Rock,
[INFO] [stdout] 97 +     'A'|'X' => Move::Rock,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 98 |     'B'|'Y' => return Move::Paper,
[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] 98 -     'B'|'Y' => return Move::Paper,
[INFO] [stdout] 98 +     'B'|'Y' => Move::Paper,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_2.rs:99:16
[INFO] [stdout]    |
[INFO] [stdout] 99 |     'C'|'Z' => return Move::Scissors,
[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] 99 -     'C'|'Z' => return Move::Scissors,
[INFO] [stdout] 99 +     'C'|'Z' => Move::Scissors,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]    --> src/days/day_2.rs:100:10
[INFO] [stdout]     |
[INFO] [stdout] 100 |     _ => return Move::Rock,
[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] 100 -     _ => return Move::Rock,
[INFO] [stdout] 100 +     _ => Move::Rock,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded `return` statement
[INFO] [stdout]   --> src/days/day_4.rs:72:3
[INFO] [stdout]    |
[INFO] [stdout] 72 |   return section_start_end_per_pair;
[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] 72 -   return section_start_end_per_pair;
[INFO] [stdout] 72 +   section_start_end_per_pair
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/days/day_5.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if !top_crate_char.is_none() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `top_crate_char.is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `top_crate_char` after checking its variant with `is_none`
[INFO] [stdout]   --> src/days/day_5.rs:62:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |         if !top_crate_char.is_none() {
[INFO] [stdout]    |             ------------------------ the check is happening here
[INFO] [stdout] 62 |             answer.push(*top_crate_char.unwrap());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: try using `match`
[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 boolean expression can be simplified
[INFO] [stdout]    --> src/days/day_5.rs:127:12
[INFO] [stdout]     |
[INFO] [stdout] 127 |         if !top_crate_char.is_none() {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `top_crate_char.is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: called `unwrap` on `top_crate_char` after checking its variant with `is_none`
[INFO] [stdout]    --> src/days/day_5.rs:128:26
[INFO] [stdout]     |
[INFO] [stdout] 127 |         if !top_crate_char.is_none() {
[INFO] [stdout]     |             ------------------------ the check is happening here
[INFO] [stdout] 128 |             answer.push(*top_crate_char.unwrap());
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: try using `match`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_unwrap
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]   --> src/days/day_6.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     match unique_chars(window) {
[INFO] [stdout] 24 | |       None => break,
[INFO] [stdout] 25 | |       Some(_) => (),
[INFO] [stdout] 26 | |     }
[INFO] [stdout]    | |_____^ help: try: `if unique_chars(window) == None { break }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]    = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for an equality check. Consider using `if`
[INFO] [stdout]   --> src/days/day_6.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     match unique_chars(window) {
[INFO] [stdout] 46 | |       None => break,
[INFO] [stdout] 47 | |       Some(_) => (),
[INFO] [stdout] 48 | |     }
[INFO] [stdout]    | |_____^ help: try: `if unique_chars(window) == None { break }`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "c104700f74c05d4edfe71b2ee9012ab818de785641f3fc8951cf28cfe32f9418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c104700f74c05d4edfe71b2ee9012ab818de785641f3fc8951cf28cfe32f9418", kill_on_drop: false }`
[INFO] [stdout] c104700f74c05d4edfe71b2ee9012ab818de785641f3fc8951cf28cfe32f9418