[INFO] cloning repository https://github.com/iFrogHop2Worlds/adventofcode2024
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iFrogHop2Worlds/adventofcode2024" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiFrogHop2Worlds%2Fadventofcode2024", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiFrogHop2Worlds%2Fadventofcode2024'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6408b187c0c549f4ebb16fa436e44abc79fb9684
[INFO] checking iFrogHop2Worlds/adventofcode2024 against try#1c4199da70f816f2239f41c55168ff75a3663718 for 155501-infallible-never-no-reservation
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiFrogHop2Worlds%2Fadventofcode2024" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iFrogHop2Worlds/adventofcode2024
[INFO] finished tweaking git repo https://github.com/iFrogHop2Worlds/adventofcode2024
[INFO] tweaked toml for git repo https://github.com/iFrogHop2Worlds/adventofcode2024 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iFrogHop2Worlds/adventofcode2024 on toolchain 1c4199da70f816f2239f41c55168ff75a3663718
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iFrogHop2Worlds/adventofcode2024 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" "+1c4199da70f816f2239f41c55168ff75a3663718" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom v8.0.0-beta.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 277c759f4425b41b000246dea424b06e04b55d6964c6ae4d5b96c75c79cf1c37
[INFO] running `Command { std: "docker" "start" "-a" "277c759f4425b41b000246dea424b06e04b55d6964c6ae4d5b96c75c79cf1c37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "277c759f4425b41b000246dea424b06e04b55d6964c6ae4d5b96c75c79cf1c37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277c759f4425b41b000246dea424b06e04b55d6964c6ae4d5b96c75c79cf1c37", kill_on_drop: false }`
[INFO] [stdout] 277c759f4425b41b000246dea424b06e04b55d6964c6ae4d5b96c75c79cf1c37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1c4199da70f816f2239f41c55168ff75a3663718" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e476cc9d05544dcc6405742a2993bee8888192f5e98294ce10132983a6beddc
[INFO] running `Command { std: "docker" "start" "-a" "7e476cc9d05544dcc6405742a2993bee8888192f5e98294ce10132983a6beddc", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking bytes v1.9.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking nom v8.0.0-beta.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking aoc24 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Read` and `self`
[INFO] [stdout]  --> src/day1.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day3.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 if(mul_idx < dnt_idx) {
[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] 33 -                 if(mul_idx < dnt_idx) {
[INFO] [stdout] 33 +                 if mul_idx < dnt_idx  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day3.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 |             if(dnt_idx < mul_idx) {
[INFO] [stdout]    |               ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 -             if(dnt_idx < mul_idx) {
[INFO] [stdout] 44 +             if dnt_idx < mul_idx  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day3.rs:51:15
[INFO] [stdout]    |
[INFO] [stdout] 51 |             if(do_idx < dnt_idx) {
[INFO] [stdout]    |               ^                ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 51 -             if(do_idx < dnt_idx) {
[INFO] [stdout] 51 +             if do_idx < dnt_idx  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/day5.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/day12.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/day14.rs:108:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let mid_y = (height / 2);
[INFO] [stdout]     |                 ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -     let mid_y = (height / 2);
[INFO] [stdout] 108 +     let mid_y = height / 2 ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/day15.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `self`
[INFO] [stdout]  --> src/day1.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day3.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |                 if(mul_idx < dnt_idx) {
[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] 33 -                 if(mul_idx < dnt_idx) {
[INFO] [stdout] 33 +                 if mul_idx < dnt_idx  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day3.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 |             if(dnt_idx < mul_idx) {
[INFO] [stdout]    |               ^                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 -             if(dnt_idx < mul_idx) {
[INFO] [stdout] 44 +             if dnt_idx < mul_idx  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/day3.rs:51:15
[INFO] [stdout]    |
[INFO] [stdout] 51 |             if(do_idx < dnt_idx) {
[INFO] [stdout]    |               ^                ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 51 -             if(do_idx < dnt_idx) {
[INFO] [stdout] 51 +             if do_idx < dnt_idx  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/day5.rs:1:42
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/day12.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::{HashMap, HashSet};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/day14.rs:108:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let mid_y = (height / 2);
[INFO] [stdout]     |                 ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 108 -     let mid_y = (height / 2);
[INFO] [stdout] 108 +     let mid_y = height / 2 ;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> src/day15.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/day1.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |         .map(|(index, &num)| {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[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/day2.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut increasing = numbers[1] > numbers[0];
[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/day10.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut visited_paths: HashSet<T> = HashSet::new(); // Track visited coordinates
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visited_paths`
[INFO] [stdout]   --> src/day10.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut visited_paths: HashSet<T> = HashSet::new(); // Track visited coordinates
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited_paths`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day11.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn split_number(mut n: i64) -> (i64, i64) {
[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/day12.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut map: Vec<Vec<char>> = input
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/day1.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |         .map(|(index, &num)| {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[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/day2.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let mut increasing = numbers[1] > numbers[0];
[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/day20.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut race_track: Vec<Vec<char>> = input
[INFO] [stdout]   |         ----^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_correct_order` is never used
[INFO] [stdout]   --> src/day5.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn is_correct_order(update: &Vec<i32>, precedence: &HashMap<i32, HashSet<i32>>) -> 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 `print_race_track` is never used
[INFO] [stdout]    --> src/day20.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn print_race_track(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `int_roundings` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_roundings)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/day10.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut visited_paths: HashSet<T> = HashSet::new(); // Track visited coordinates
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `visited_paths`
[INFO] [stdout]   --> src/day10.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let mut visited_paths: HashSet<T> = HashSet::new(); // Track visited coordinates
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visited_paths`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/day11.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn split_number(mut n: i64) -> (i64, i64) {
[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/day12.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut map: Vec<Vec<char>> = input
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/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: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/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: variable does not need to be mutable
[INFO] [stdout]  --> src/day20.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut race_track: Vec<Vec<char>> = input
[INFO] [stdout]   |         ----^^^^^^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_correct_order` is never used
[INFO] [stdout]   --> src/day5.rs:99:8
[INFO] [stdout]    |
[INFO] [stdout] 99 |     fn is_correct_order(update: &Vec<i32>, precedence: &HashMap<i32, HashSet<i32>>) -> 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 `print_race_track` is never used
[INFO] [stdout]    --> src/day20.rs:118:4
[INFO] [stdout]     |
[INFO] [stdout] 118 | fn print_race_track(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `int_roundings` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(int_roundings)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.52s
[INFO] running `Command { std: "docker" "inspect" "7e476cc9d05544dcc6405742a2993bee8888192f5e98294ce10132983a6beddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e476cc9d05544dcc6405742a2993bee8888192f5e98294ce10132983a6beddc", kill_on_drop: false }`
[INFO] [stdout] 7e476cc9d05544dcc6405742a2993bee8888192f5e98294ce10132983a6beddc
