[INFO] cloning repository https://github.com/Danmou/advent-of-code-2021-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Danmou/advent-of-code-2021-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanmou%2Fadvent-of-code-2021-rust", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63ce1fbef1ad92a60baeb680303ca6411a79ab93
[INFO] checking Danmou/advent-of-code-2021-rust against master#292be5c7c05138d753bbd4b30db7a3f1a5c914f7 for pr-148271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanmou%2Fadvent-of-code-2021-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Danmou/advent-of-code-2021-rust
[INFO] finished tweaking git repo https://github.com/Danmou/advent-of-code-2021-rust
[INFO] tweaked toml for git repo https://github.com/Danmou/advent-of-code-2021-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Danmou/advent-of-code-2021-rust on toolchain 292be5c7c05138d753bbd4b30db7a3f1a5c914f7
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[INFO] crate git repo https://github.com/Danmou/advent-of-code-2021-rust 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" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da6c1896529deef2b4820a00895cdb9e58b57a1ed2085c1c4616a66fe6cb18ac
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[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
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[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking ahash v0.2.19
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[INFO] [stderr]     Checking rand_core v0.6.3
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[INFO] [stderr]     Checking graphlib v0.6.3
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]    Compiling strum_macros v0.23.1
[INFO] [stderr]     Checking phf v0.10.0
[INFO] [stderr]     Checking advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/aoc14b/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     for (count) in char_counts.values_mut() {
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 60 -     for (count) in char_counts.values_mut() {
[INFO] [stdout] 60 +     for count  in char_counts.values_mut() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains` and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22a/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Copy + Integer> Range<T> {
[INFO] [stdout]    | -------------------------------- methods in this implementation
[INFO] [stdout] 15 |     fn contains(&self, p: T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains` and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22a/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T: Copy + Integer> Cuboid<T> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] 38 |     fn contains(&self, (x, y, z): (T, T, T)) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/aoc11a/main.rs:67:54
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Zip::from(&flashed).and(&mut *map).for_each(|&f, mut v| {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/aoc11a/main.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut new_flashed = map.mapv(|v| v > 9);
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/bin/aoc11a/main.rs:35:33
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut flashed = map.mapv(|v| false);
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_image` is never used
[INFO] [stdout]   --> src/bin/aoc20b/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn print_image(image: &Image) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/bin/aoc17b/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::max;
[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: `std::str::FromStr`
[INFO] [stdout]  --> src/bin/aoc3a/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/bin/aoc3a/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     down,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     forward,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |             gamma |= (1 << i);
[INFO] [stdout]    |                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -             gamma |= (1 << i);
[INFO] [stdout] 48 +             gamma |= 1 << i ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |             epsilon |= (1 << i);
[INFO] [stdout]    |                        ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 50 -             epsilon |= (1 << i);
[INFO] [stdout] 50 +             epsilon |= 1 << i ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/bin/aoc3a/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum Direction {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/aoc11a/main.rs:67:54
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Zip::from(&flashed).and(&mut *map).for_each(|&f, mut v| {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/aoc11a/main.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let mut new_flashed = map.mapv(|v| v > 9);
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/bin/aoc11a/main.rs:35:33
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut flashed = map.mapv(|v| false);
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains` and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22a/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Copy + Integer> Range<T> {
[INFO] [stdout]    | -------------------------------- methods in this implementation
[INFO] [stdout] 15 |     fn contains(&self, p: T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains` and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22a/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T: Copy + Integer> Cuboid<T> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] 38 |     fn contains(&self, (x, y, z): (T, T, T)) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/bin/aoc3a/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/bin/aoc3a/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     down,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     forward,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |             gamma |= (1 << i);
[INFO] [stdout]    |                      ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 48 -             gamma |= (1 << i);
[INFO] [stdout] 48 +             gamma |= 1 << i ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/aoc3a/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |             epsilon |= (1 << i);
[INFO] [stdout]    |                        ^      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 50 -             epsilon |= (1 << i);
[INFO] [stdout] 50 +             epsilon |= 1 << i ;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/bin/aoc3a/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum Direction {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> src/bin/aoc5a/main.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | impl Map {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 83 |     fn print(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::max`
[INFO] [stdout]  --> src/bin/aoc17b/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::max;
[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: `itertools::Itertools`
[INFO] [stdout]  --> src/bin/aoc23a/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_points` is never used
[INFO] [stdout]   --> src/bin/aoc13a/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn draw_points(points: &HashSet<(usize, usize)>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23a/main.rs:461:9
[INFO] [stdout]     |
[INFO] [stdout] 461 |     let mut map = Map::new();
[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: variable `best_position` is assigned to, but never used
[INFO] [stdout]   --> src/bin/aoc7b/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut best_position = -1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_best_position` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_position` is never read
[INFO] [stdout]   --> src/bin/aoc7b/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             best_position = pos;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/bin/aoc3b/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/bin/aoc3b/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc3b/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     down,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc3b/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     forward,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/bin/aoc3b/main.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | enum Direction {
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mut ret = self.content[idx].clone().unwrap();
[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: method `print` is never used
[INFO] [stdout]   --> src/bin/aoc5b/main.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | impl Map {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn print(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:405:13
[INFO] [stdout]     |
[INFO] [stdout] 405 |         let mut amph = src.remove();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_points` is never used
[INFO] [stdout]   --> src/bin/aoc13a/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn draw_points(points: &HashSet<(usize, usize)>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |     let mut map = Map::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:586:9
[INFO] [stdout]     |
[INFO] [stdout] 586 |     let mut cost = 0;
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute_moves` is never used
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:414:8
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl Map {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 414 |     fn execute_moves(&mut self, steps: Vec<Loc>) -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step`
[INFO] [stdout]   --> src/bin/aoc14a/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     for step in 0..10 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_step`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/bin/aoc2b/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2b/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     down,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2b/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     forward,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/bin/aoc2b/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2b/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     down,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2b/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     forward,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc12a/main.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let mut path = queue.pop().unwrap();
[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: method `remove_by_val` is never used
[INFO] [stdout]   --> src/bin/aoc12a/main.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<K, V> BidirectionalMap<K, V>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     K: Hash + Eq + Clone,
[INFO] [stdout] 17 | |     V: Hash + Eq + Clone,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |       fn remove_by_val(&mut self, v: V) -> Option<K> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/bin/aoc14b/main.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     for (count) in char_counts.values_mut() {
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 60 -     for (count) in char_counts.values_mut() {
[INFO] [stdout] 60 +     for count  in char_counts.values_mut() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_image` is never used
[INFO] [stdout]   --> src/bin/aoc20b/main.rs:89:4
[INFO] [stdout]    |
[INFO] [stdout] 89 | fn print_image(image: &Image) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `best_position` is assigned to, but never used
[INFO] [stdout]   --> src/bin/aoc7a/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut best_position = -1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_best_position` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_position` is never read
[INFO] [stdout]   --> src/bin/aoc7a/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             best_position = pos;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/aoc12a/main.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         graph.add_edge(&id1, &id2);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let _ = graph.add_edge(&id1, &id2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `best_position` is assigned to, but never used
[INFO] [stdout]   --> src/bin/aoc7a/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut best_position = -1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_best_position` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_position` is never read
[INFO] [stdout]   --> src/bin/aoc7a/main.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             best_position = pos;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc12b/main.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let mut path = queue.pop().unwrap();
[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: method `remove_by_val` is never used
[INFO] [stdout]   --> src/bin/aoc12b/main.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<K, V> BidirectionalMap<K, V>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     K: Hash + Eq + Clone,
[INFO] [stdout] 17 | |     V: Hash + Eq + Clone,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |       fn remove_by_val(&mut self, v: V) -> Option<K> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mut ret = self.content[idx].clone().unwrap();
[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 `Result` that must be used
[INFO] [stdout]   --> src/bin/aoc12b/main.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         graph.add_edge(&id1, &id2);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let _ = graph.add_edge(&id1, &id2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:405:13
[INFO] [stdout]     |
[INFO] [stdout] 405 |         let mut amph = src.remove();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `step`
[INFO] [stdout]   --> src/bin/aoc14a/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     for step in 0..10 {
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_step`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc12b/main.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let mut path = queue.pop().unwrap();
[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: method `remove_by_val` is never used
[INFO] [stdout]   --> src/bin/aoc12b/main.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<K, V> BidirectionalMap<K, V>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     K: Hash + Eq + Clone,
[INFO] [stdout] 17 | |     V: Hash + Eq + Clone,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |       fn remove_by_val(&mut self, v: V) -> Option<K> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:584:9
[INFO] [stdout]     |
[INFO] [stdout] 584 |     let mut map = Map::new();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:586:9
[INFO] [stdout]     |
[INFO] [stdout] 586 |     let mut cost = 0;
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute_moves` is never used
[INFO] [stdout]    --> src/bin/aoc23b/main.rs:414:8
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl Map {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 414 |     fn execute_moves(&mut self, steps: Vec<Loc>) -> u64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/aoc12b/main.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         graph.add_edge(&id1, &id2);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let _ = graph.add_edge(&id1, &id2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `best_position` is assigned to, but never used
[INFO] [stdout]   --> src/bin/aoc7b/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let mut best_position = -1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_best_position` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `best_position` is never read
[INFO] [stdout]   --> src/bin/aoc7b/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             best_position = pos;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/bin/aoc2a/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2a/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     down,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2a/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     forward,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `deref_mut` found for reference `&Rc<RefCell<Pair>>` in the current scope
[INFO] [stdout]   --> src/bin/aoc18a/main.rs:88:52
[INFO] [stdout]    |
[INFO] [stdout] 88 |                     c if c.is_digit(10) => current.deref_mut().set_val(c.to_string().parse().unwrap()),
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `deref` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 88 -                     c if c.is_digit(10) => current.deref_mut().set_val(c.to_string().parse().unwrap()),
[INFO] [stdout] 88 +                     c if c.is_digit(10) => current.deref().set_val(c.to_string().parse().unwrap()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]   --> src/bin/aoc16b/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let version = parse_int(iter, 3)?;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code-2021` (bin "aoc18a" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variant `up` should have an upper camel case name
[INFO] [stdout]  --> src/bin/aoc2a/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     up,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `Up`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `down` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2a/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     down,
[INFO] [stdout]    |     ^^^^ help: convert the identifier to upper camel case: `Down`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `forward` should have an upper camel case name
[INFO] [stdout]   --> src/bin/aoc2a/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     forward,
[INFO] [stdout]    |     ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Forward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `version`
[INFO] [stdout]   --> src/bin/aoc16b/main.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let version = parse_int(iter, 3)?;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version`
[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/bin/aoc12a/main.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let mut path = queue.pop().unwrap();
[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: method `remove_by_val` is never used
[INFO] [stdout]   --> src/bin/aoc12a/main.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<K, V> BidirectionalMap<K, V>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     K: Hash + Eq + Clone,
[INFO] [stdout] 17 | |     V: Hash + Eq + Clone,
[INFO] [stdout]    | |_________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 |       fn remove_by_val(&mut self, v: V) -> Option<K> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/aoc12a/main.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |         graph.add_edge(&id1, &id2);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |         let _ = graph.add_edge(&id1, &id2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/aoc22b/main.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut region = match rest
[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: methods `contains`, `crop`, and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22b/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Copy + Integer> Range<T> {
[INFO] [stdout]    | -------------------------------- methods in this implementation
[INFO] [stdout] 15 |     fn contains(&self, p: T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn crop(&mut self, other: &Range<T>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains`, `crop`, and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22b/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T: Copy + Integer> Cuboid<T> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] 38 |     fn contains(&self, (x, y, z): (T, T, T)) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn crop(&mut self, x: Range<T>, y: Range<T>, z: Range<T>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]   --> src/bin/aoc5b/main.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | impl Map {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn print(&self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/aoc22b/main.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut region = match rest
[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: methods `contains`, `crop`, and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22b/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Copy + Integer> Range<T> {
[INFO] [stdout]    | -------------------------------- methods in this implementation
[INFO] [stdout] 15 |     fn contains(&self, p: T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn crop(&mut self, other: &Range<T>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `contains`, `crop`, and `size` are never used
[INFO] [stdout]   --> src/bin/aoc22b/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T: Copy + Integer> Cuboid<T> {
[INFO] [stdout]    | --------------------------------- methods in this implementation
[INFO] [stdout] 38 |     fn contains(&self, (x, y, z): (T, T, T)) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn crop(&mut self, x: Range<T>, y: Range<T>, z: Range<T>) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn size(&self) -> T {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `deref_mut` found for reference `&Rc<RefCell<Pair>>` in the current scope
[INFO] [stdout]   --> src/bin/aoc18a/main.rs:88:52
[INFO] [stdout]    |
[INFO] [stdout] 88 |                     c if c.is_digit(10) => current.deref_mut().set_val(c.to_string().parse().unwrap()),
[INFO] [stdout]    |                                                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `deref` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 88 -                     c if c.is_digit(10) => current.deref_mut().set_val(c.to_string().parse().unwrap()),
[INFO] [stdout] 88 +                     c if c.is_digit(10) => current.deref().set_val(c.to_string().parse().unwrap()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code-2021` (bin "aoc18a") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fbd82f59b113d6dd4259ab13430059df1b726fdd8fb489eb9292a4d4b8afdee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd82f59b113d6dd4259ab13430059df1b726fdd8fb489eb9292a4d4b8afdee1", kill_on_drop: false }`
[INFO] [stdout] fbd82f59b113d6dd4259ab13430059df1b726fdd8fb489eb9292a4d4b8afdee1
