[INFO] cloning repository https://github.com/kuviman/advent_of_code_2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kuviman/advent_of_code_2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuviman%2Fadvent_of_code_2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuviman%2Fadvent_of_code_2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6838bfca881c38134b357636604bf98b69833dd
[INFO] checking kuviman/advent_of_code_2023 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuviman%2Fadvent_of_code_2023" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kuviman/advent_of_code_2023
[INFO] finished tweaking git repo https://github.com/kuviman/advent_of_code_2023
[INFO] tweaked toml for git repo https://github.com/kuviman/advent_of_code_2023 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kuviman/advent_of_code_2023 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kuviman/advent_of_code_2023 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded batbox-approx v0.16.0
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[INFO] running `Command { std: "docker" "start" "-a" "616c398b4d212921a57e8a06528c22be1b001309b45a77bdca2fab44c04ad70d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "616c398b4d212921a57e8a06528c22be1b001309b45a77bdca2fab44c04ad70d", kill_on_drop: false }`
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[INFO] [stdout] warning: function `solve_brute` is never used
[INFO] [stdout]   --> src/bin/day6_part2.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn solve_brute(race: &Race) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashSet` and `process::Output`
[INFO] [stdout]  --> src/bin/day8_part2.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] 3 |     ops::{Div, Mul},
[INFO] [stdout] 4 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hand`
[INFO] [stdout]    --> src/bin/day7_part2.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 |         .map(|(index, (hand, bid))| {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_hand`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap` and `VecDeque`
[INFO] [stdout]  --> src/bin/day22/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/bin/day22/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `seq::SliceRandom`
[INFO] [stdout]  --> src/bin/day24/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{seq::SliceRandom, thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `part1`
[INFO] [stdout]   --> src/bin/day25/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let part1 = !std::env::args().any(|arg| arg == "part2");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_part1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/bin/day21/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BTreeMap, HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `intersect_time` is never used
[INFO] [stdout]    --> src/bin/day24/main.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 100 |         fn intersect_time(a: Ray<i64>, b: Ray<i64>) -> Option<f64> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap` and `ops::Deref`
[INFO] [stdout]  --> src/bin/day23/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^
[INFO] [stdout] 3 |     ops::Deref,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `solve_using_math` is never used
[INFO] [stdout]   --> src/bin/day6_part1.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn solve_using_math(race: &Race) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hand`
[INFO] [stdout]    --> src/bin/day7_part2.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 |         .map(|(index, (hand, bid))| {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_hand`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/bin/day23/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ops` is assigned to, but never used
[INFO] [stdout]    --> src/bin/day21/main.rs:244:17
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let mut ops = 0;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_ops` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]   --> src/bin/day23/main.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn brute(&mut self, pos: Pos, prev: Option<Pos>) {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `seq::SliceRandom`
[INFO] [stdout]  --> src/bin/day24/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::{seq::SliceRandom, thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `exit` and `part1` are never read
[INFO] [stdout]   --> src/bin/day23/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Solver {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 31 |     exit: Pos,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     part1: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `game_id`
[INFO] [stdout]   --> src/bin/day2.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let game_id: u64 = line[..colon].parse().unwrap();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap` and `VecDeque`
[INFO] [stdout]  --> src/bin/day22/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^                    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/bin/day22/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day20/main.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `part1`
[INFO] [stdout]   --> src/bin/day25/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let part1 = !std::env::args().any(|arg| arg == "part2");
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_part1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `game_id`
[INFO] [stdout]   --> src/bin/day2.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         let game_id: u64 = line[..colon].parse().unwrap();
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_debug` is never used
[INFO] [stdout]   --> src/bin/day14/main.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn print_debug(map: &Vec<Vec<Tile>>) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashMap`, `HashSet`, and `ops::Range`
[INFO] [stdout]  --> src/bin/day18/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet},
[INFO] [stdout]   |                   ^^^^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stdout] 3 |     ops::Range,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `vec2` should have an upper camel case name
[INFO] [stdout]  --> src/bin/day18/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct vec2(i64, i64);
[INFO] [stdout]   |        ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Vec2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashSet` and `process::Output`
[INFO] [stdout]  --> src/bin/day8_part2.rs:2:28
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout] 3 |     ops::{Div, Mul},
[INFO] [stdout] 4 |     process::Output,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day17/main.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BinaryHeap, HashMap, HashSet};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `vec2` should have an upper camel case name
[INFO] [stdout]   --> src/bin/day17/main.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     struct vec2(i32, i32);
[INFO] [stdout]    |            ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Vec2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day20/main.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeMap` and `ops::Deref`
[INFO] [stdout]  --> src/bin/day23/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BTreeMap, HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^^
[INFO] [stdout] 3 |     ops::Deref,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashMap`, `HashSet`, and `ops::Range`
[INFO] [stdout]  --> src/bin/day18/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{BinaryHeap, HashMap, HashSet},
[INFO] [stdout]   |                   ^^^^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stdout] 3 |     ops::Range,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `vec2` should have an upper camel case name
[INFO] [stdout]  --> src/bin/day18/main.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct vec2(i64, i64);
[INFO] [stdout]   |        ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Vec2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `LEFT` and `UP` are never used
[INFO] [stdout]   --> src/bin/day17/main.rs:43:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |     impl Direction {
[INFO] [stdout]    |     -------------- associated constants in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |         const LEFT: Self = Self(2);
[INFO] [stdout]    |               ^^^^
[INFO] [stdout] 44 |         const UP: Self = Self(3);
[INFO] [stdout]    |               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/bin/day23/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prev`
[INFO] [stdout]   --> src/bin/day23/main.rs:37:35
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn brute(&mut self, pos: Pos, prev: Option<Pos>) {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_prev`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `exit` and `part1` are never read
[INFO] [stdout]   --> src/bin/day23/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Solver {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 31 |     exit: Pos,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 32 |     part1: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/day17/main.rs:1:45
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BinaryHeap, HashMap, HashSet};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `vec2` should have an upper camel case name
[INFO] [stdout]   --> src/bin/day17/main.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     struct vec2(i32, i32);
[INFO] [stdout]    |            ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Vec2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BTreeMap`
[INFO] [stdout]  --> src/bin/day21/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BTreeMap, HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ops` is assigned to, but never used
[INFO] [stdout]    --> src/bin/day21/main.rs:244:17
[INFO] [stdout]     |
[INFO] [stdout] 244 |         let mut ops = 0;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_ops` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.43s
[INFO] running `Command { std: "docker" "inspect" "d8f84e7eb4f23d830ae24efb5452b43bce55503fe6b7ae43b0189f859d1f462d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f84e7eb4f23d830ae24efb5452b43bce55503fe6b7ae43b0189f859d1f462d", kill_on_drop: false }`
[INFO] [stdout] d8f84e7eb4f23d830ae24efb5452b43bce55503fe6b7ae43b0189f859d1f462d
