[INFO] cloning repository https://github.com/beaszt-nix/advent-of-code-2022
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beaszt-nix/advent-of-code-2022" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeaszt-nix%2Fadvent-of-code-2022", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeaszt-nix%2Fadvent-of-code-2022'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ff8e1b75af0502b1d939c22678e09051c89fdea
[INFO] checking beaszt-nix/advent-of-code-2022/0ff8e1b75af0502b1d939c22678e09051c89fdea against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeaszt-nix%2Fadvent-of-code-2022" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/beaszt-nix/advent-of-code-2022 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/beaszt-nix/advent-of-code-2022
[INFO] finished tweaking git repo https://github.com/beaszt-nix/advent-of-code-2022
[INFO] tweaked toml for git repo https://github.com/beaszt-nix/advent-of-code-2022 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/beaszt-nix/advent-of-code-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb58ff97bca87111da5bcfca6bd1f781d75ae36016dcf65c3690a0f2d2d81515
[INFO] running `Command { std: "docker" "start" "-a" "bb58ff97bca87111da5bcfca6bd1f781d75ae36016dcf65c3690a0f2d2d81515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb58ff97bca87111da5bcfca6bd1f781d75ae36016dcf65c3690a0f2d2d81515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb58ff97bca87111da5bcfca6bd1f781d75ae36016dcf65c3690a0f2d2d81515", kill_on_drop: false }`
[INFO] [stdout] bb58ff97bca87111da5bcfca6bd1f781d75ae36016dcf65c3690a0f2d2d81515
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4953444272ebdd31b4e5468acc3a83c978a653037f640ccf35438dcde6b33b8
[INFO] running `Command { std: "docker" "start" "-a" "d4953444272ebdd31b4e5468acc3a83c978a653037f640ccf35438dcde6b33b8", kill_on_drop: false }`
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/days/day6.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, BufReader, Read},
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/days/day6.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{BufRead, BufReader, Read},
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/days/day9.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let res = reader
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut index = 0;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Point {
[INFO] [stdout]   |        ----- fields in this struct
[INFO] [stdout] 5 |     x: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout] 6 |     y: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Point` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/days/day1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn part1() -> i64 {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day1.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn part2() -> i64 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]   --> src/days/day2.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl Move {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 45 |     fn get_score(&self, other: &Self) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1_round_score` is never used
[INFO] [stdout]   --> src/days/day2.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn part1_round_score(line: String) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2_round_score` is never used
[INFO] [stdout]   --> src/days/day2.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn part2_round_score(line: String) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day2.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn part1() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day2.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn part2() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1_logic` is never used
[INFO] [stdout]  --> src/days/day3.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn part1_logic(bag_items: String) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day3.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn part1() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day3.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn part2() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]  --> src/days/day4.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn parse(line: String) -> Option<[(usize, usize); 2]> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains` is never used
[INFO] [stdout]   --> src/days/day4.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn contains((a, b): &(usize, usize), (c, d): &(usize, usize)) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `overlaps` is never used
[INFO] [stdout]   --> src/days/day4.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn overlaps((a, b): &(usize, usize), (c, d): &(usize, usize)) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day4.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day4.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Crate` is never constructed
[INFO] [stdout]  --> src/days/day5.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Crate {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `num_crates`, `source_stack`, and `target_stack` are never read
[INFO] [stdout]   --> src/days/day5.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Move {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 14 |     pub num_crates: usize,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 15 |     pub source_stack: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 16 |     pub target_stack: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Move` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_crate` is never used
[INFO] [stdout]   --> src/days/day5.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn parse_crate(line: &String) -> Vec<Option<Crate>> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_input` is never used
[INFO] [stdout]   --> src/days/day5.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn parse_input(lines: Vec<String>) -> (Vec<Vec<Crate>>, Vec<Move>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day5.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn part1() -> String {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]    --> src/days/day5.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn part2() -> String {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_distinct` is never used
[INFO] [stdout]  --> src/days/day6.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn check_distinct(input: &[u8]) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day6.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day6.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_dir_sizes` is never used
[INFO] [stdout]  --> src/days/day7/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn get_dir_sizes(root: &FsTreeNodeRef, dir_sizes: &mut Vec<usize>) -> usize {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day7/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day7/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `upper_bound` is never used
[INFO] [stdout]   --> src/days/day7/mod.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn upper_bound(vec: &Vec<usize>, target: usize) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_input` is never used
[INFO] [stdout]   --> src/days/day7/io.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn parse_input() -> FsTreeNodeRef {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_current_directory` is never used
[INFO] [stdout]   --> src/days/day7/io.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn change_current_directory(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_child` is never used
[INFO] [stdout]   --> src/days/day7/io.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn create_child(node: &FsTreeNodeRef, name: String, size: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/days/day7/types.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Subdir(String),
[INFO] [stdout]   |     ------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Subdir(()),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/days/day7/types.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cd(Path),
[INFO] [stdout]    |     -- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cd(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/days/day7/types.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |     File(String, usize),
[INFO] [stdout]    |     ---- ^^^^^^  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 12 |     File((), ()),
[INFO] [stdout]    |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/days/day7/types.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Dir(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Dir(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FsTreeNodeRef` is never used
[INFO] [stdout]   --> src/days/day7/types.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub type FsTreeNodeRef = Rc<RefCell<FsTreeNode>>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FsTreeNode` is never constructed
[INFO] [stdout]   --> src/days/day7/types.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct FsTreeNode {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_visible_trees` is never used
[INFO] [stdout]  --> src/days/day8.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_visible_trees(grid: &Vec<Vec<i8>>) -> HashSet<(usize, usize)> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_scenic_score` is never used
[INFO] [stdout]   --> src/days/day8.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn get_scenic_score((i, j): (usize, usize), grid: &Vec<Vec<i8>>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day8.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day8.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `move_x`, and `move_y` are never used
[INFO] [stdout]   --> src/days/day9.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl GridPoint {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn move_x(&self, steps: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn move_y(&self, steps: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_tail` is never used
[INFO] [stdout]   --> src/days/day9.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn move_tail(head: &GridPoint, tail: &GridPoint) -> GridPoint {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_rope` is never used
[INFO] [stdout]   --> src/days/day9.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn move_rope(
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/days/day9.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn run(num_knots: usize) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `part1` is never used
[INFO] [stdout]   --> src/days/day10.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Cpu {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn part1(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]    --> src/days/day10.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn part1() -> i32 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/days/day6.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     reader.read_to_end(&mut message);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _ = reader.read_to_end(&mut message);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/days/day6.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     reader.read_to_end(&mut message);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = reader.read_to_end(&mut message);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> src/days/day9.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let res = reader
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut index = 0;
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Point {
[INFO] [stdout]   |        ----- fields in this struct
[INFO] [stdout] 5 |     x: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout] 6 |     y: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Point` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/days/day1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn part1() -> i64 {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day1.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn part2() -> i64 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day2.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn part1() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 53 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day2.rs:93:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub fn part2() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1_logic` is never used
[INFO] [stdout]  --> src/days/day3.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn part1_logic(bag_items: String) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day3.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn part1() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day3.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn part2() -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]  --> src/days/day4.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn parse(line: String) -> Option<[(usize, usize); 2]> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains` is never used
[INFO] [stdout]   --> src/days/day4.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn contains((a, b): &(usize, usize), (c, d): &(usize, usize)) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `overlaps` is never used
[INFO] [stdout]   --> src/days/day4.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn overlaps((a, b): &(usize, usize), (c, d): &(usize, usize)) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day4.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day4.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Crate` is never constructed
[INFO] [stdout]  --> src/days/day5.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Crate {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `num_crates`, `source_stack`, and `target_stack` are never read
[INFO] [stdout]   --> src/days/day5.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Move {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 14 |     pub num_crates: usize,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 15 |     pub source_stack: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 16 |     pub target_stack: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Move` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_crate` is never used
[INFO] [stdout]   --> src/days/day5.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn parse_crate(line: &String) -> Vec<Option<Crate>> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_input` is never used
[INFO] [stdout]   --> src/days/day5.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn parse_input(lines: Vec<String>) -> (Vec<Vec<Crate>>, Vec<Move>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day5.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn part1() -> String {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]    --> src/days/day5.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn part2() -> String {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_distinct` is never used
[INFO] [stdout]  --> src/days/day6.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn check_distinct(input: &[u8]) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day6.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day6.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_dir_sizes` is never used
[INFO] [stdout]  --> src/days/day7/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn get_dir_sizes(root: &FsTreeNodeRef, dir_sizes: &mut Vec<usize>) -> usize {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day7/mod.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day7/mod.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `upper_bound` is never used
[INFO] [stdout]   --> src/days/day7/mod.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn upper_bound(vec: &Vec<usize>, target: usize) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_input` is never used
[INFO] [stdout]   --> src/days/day7/io.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn parse_input() -> FsTreeNodeRef {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change_current_directory` is never used
[INFO] [stdout]   --> src/days/day7/io.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn change_current_directory(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_child` is never used
[INFO] [stdout]   --> src/days/day7/io.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn create_child(node: &FsTreeNodeRef, name: String, size: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/days/day7/types.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Subdir(String),
[INFO] [stdout]   |     ------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Subdir(()),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/days/day7/types.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cd(Path),
[INFO] [stdout]    |     -- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Cd(()),
[INFO] [stdout]    |        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/days/day7/types.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 |     File(String, usize),
[INFO] [stdout]    |     ---- ^^^^^^  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 12 |     File((), ()),
[INFO] [stdout]    |          ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/days/day7/types.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Dir(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Dir(()),
[INFO] [stdout]    |         ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FsTreeNodeRef` is never used
[INFO] [stdout]   --> src/days/day7/types.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub type FsTreeNodeRef = Rc<RefCell<FsTreeNode>>;
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FsTreeNode` is never constructed
[INFO] [stdout]   --> src/days/day7/types.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct FsTreeNode {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_visible_trees` is never used
[INFO] [stdout]  --> src/days/day8.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn get_visible_trees(grid: &Vec<Vec<i8>>) -> HashSet<(usize, usize)> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_scenic_score` is never used
[INFO] [stdout]   --> src/days/day8.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn get_scenic_score((i, j): (usize, usize), grid: &Vec<Vec<i8>>) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]   --> src/days/day8.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn part1() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/days/day8.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn part2() -> usize {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `move_x`, and `move_y` are never used
[INFO] [stdout]   --> src/days/day9.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl GridPoint {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(x: i32, y: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn move_x(&self, steps: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn move_y(&self, steps: i32) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_tail` is never used
[INFO] [stdout]   --> src/days/day9.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn move_tail(head: &GridPoint, tail: &GridPoint) -> GridPoint {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_rope` is never used
[INFO] [stdout]   --> src/days/day9.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn move_rope(
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/days/day9.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn run(num_knots: usize) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `part1` is never used
[INFO] [stdout]   --> src/days/day10.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Cpu {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn part1(&mut self) -> i32 {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]    --> src/days/day10.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn part1() -> i32 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/days/day6.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     reader.read_to_end(&mut message);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _ = reader.read_to_end(&mut message);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/days/day6.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     reader.read_to_end(&mut message);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = reader.read_to_end(&mut message);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 50 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "d4953444272ebdd31b4e5468acc3a83c978a653037f640ccf35438dcde6b33b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4953444272ebdd31b4e5468acc3a83c978a653037f640ccf35438dcde6b33b8", kill_on_drop: false }`
[INFO] [stdout] d4953444272ebdd31b4e5468acc3a83c978a653037f640ccf35438dcde6b33b8