[INFO] cloning repository https://github.com/AmberCrafter/Rust-kickstart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AmberCrafter/Rust-kickstart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmberCrafter%2FRust-kickstart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmberCrafter%2FRust-kickstart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 827853ac26d020782c9762319d4765bc7b2c69d5
[INFO] checking AmberCrafter/Rust-kickstart/827853ac26d020782c9762319d4765bc7b2c69d5 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmberCrafter%2FRust-kickstart" "/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/AmberCrafter/Rust-kickstart 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/AmberCrafter/Rust-kickstart
[INFO] finished tweaking git repo https://github.com/AmberCrafter/Rust-kickstart
[INFO] tweaked toml for git repo https://github.com/AmberCrafter/Rust-kickstart written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AmberCrafter/Rust-kickstart 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] 04e6f9e35ffade96f72b81a40e25297f99291295ba4d4ed25c422d811636e087
[INFO] running `Command { std: "docker" "start" "-a" "04e6f9e35ffade96f72b81a40e25297f99291295ba4d4ed25c422d811636e087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04e6f9e35ffade96f72b81a40e25297f99291295ba4d4ed25c422d811636e087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04e6f9e35ffade96f72b81a40e25297f99291295ba4d4ed25c422d811636e087", kill_on_drop: false }`
[INFO] [stdout] 04e6f9e35ffade96f72b81a40e25297f99291295ba4d4ed25c422d811636e087
[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] 6ea57951078bf37dc2246946c19b1310d6763f76e6e3bb7d8ac6d051b80a3d48
[INFO] running `Command { std: "docker" "start" "-a" "6ea57951078bf37dc2246946c19b1310d6763f76e6e3bb7d8ac6d051b80a3d48", kill_on_drop: false }`
[INFO] [stderr]     Checking kickstart v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/problems/ks2022/roundB_C.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |             while (idx_locks<locks.len() || idx_buf<buf.len()) {
[INFO] [stdout]    |                   ^                                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -             while (idx_locks<locks.len() || idx_buf<buf.len()) {
[INFO] [stdout] 16 +             while idx_locks<locks.len() || idx_buf<buf.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::format`
[INFO] [stdout]  --> src/problems/ks2022/roundC_B.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::{StdinLock, StdoutLock}, fmt::format};
[INFO] [stdout]   |                                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/problems/ks2022/roundB_C.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |             while (idx_locks<locks.len() || idx_buf<buf.len()) {
[INFO] [stdout]    |                   ^                                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -             while (idx_locks<locks.len() || idx_buf<buf.len()) {
[INFO] [stdout] 16 +             while idx_locks<locks.len() || idx_buf<buf.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::format`
[INFO] [stdout]  --> src/problems/ks2022/roundC_B.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::{StdinLock, StdoutLock}, fmt::format};
[INFO] [stdout]   |                                        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]  --> src/problems/ks2022/roundB_B.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |             res *= 10;
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]   --> src/problems/ks2022/roundC_A.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let nums: usize = console.read();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]  --> src/problems/ks2022/roundB_B.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |             res *= 10;
[INFO] [stdout]   |             ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dist`
[INFO] [stdout]   --> src/problems/ks2022/roundC_C.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 |             .map(|(dist, label)| label.to_string())
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_dist`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/toolbox/io_util.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/toolbox/io_util.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/toolbox/io_util.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/problems/ks2022/practice_s1_A.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/practice_s1_A.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_A.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_A.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `solve` is never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_A.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 50 |     pub fn solve(console: &mut Console) -> usize{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_A.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/problems/ks2022/practice_s1_B.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/practice_s1_B.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_B.rs:7:11
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 7  |    pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |    pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |    pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |    pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |    pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |    pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |    pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_B.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `solve` is never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_B.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 50 |    pub fn solve(console: &mut Console) -> (String,String) {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_B.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/problems/ks2022/practice_s1_C.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/practice_s1_C.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_C.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 8  |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_C.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]   --> src/problems/ks2022/roundC_A.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let nums: usize = console.read();
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `solve` is never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_C.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 48 |     pub fn solve(console: &mut Console) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_C.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundB_A.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `infinity_area` is never used
[INFO] [stdout]  --> src/problems/ks2022/roundB_A.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn infinity_area(r: i32, a: i32, b: i32) -> f64 {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundB_B.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `reverse_number` and `palindromic_factor` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundB_B.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout] 3  | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 4  |     fn reverse_number(value: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn palindromic_factor(value: i32) -> i32 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundB_C.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `unlock_the_padlock` is never used
[INFO] [stdout]  --> src/problems/ks2022/roundB_C.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Solution {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 4 |     pub fn unlock_the_padlock(locks: Vec<usize>, range: usize) -> usize {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundB_D.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Solution {}
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `gen_road`, `walk_next`, and `hamiltonian_tour` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundB_D.rs:4:8
[INFO] [stdout]    |
[INFO] [stdout] 3  | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 4  |     fn gen_road(grid: Vec<Vec<char>>) -> Vec<Vec<bool>> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn walk_next(road: &mut Vec<Vec<bool>>, x: usize, y: usize, path: &mut Vec<char>) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     pub fn hamiltonian_tour(grid: Vec<Vec<char>>) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/problems/ks2022/roundC_A.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundC_A.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_A.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/problems/ks2022/roundC_A.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `has_uppercase`, `has_lowercase`, `has_digit`, `has_spacial_char`, `has_enough_chars`, and `solve` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_A.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 47 |     fn has_uppercase(s: &mut String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn has_lowercase(s: &mut String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn has_digit(s: &mut String) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     fn has_spacial_char(s: &mut String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     fn has_enough_chars(s: &mut String, num: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 93 |     pub fn solve(console: &mut Console) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/problems/ks2022/roundC_A.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/problems/ks2022/roundC_B.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundC_B.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `check_valid` and `solve` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 47 |     fn check_valid(N: usize, X: usize, Y: usize) -> Option<usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn solve(console: &mut Console) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/problems/ks2022/roundC_C.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundC_C.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_C.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/problems/ks2022/roundC_C.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `solve` is never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_C.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 47 |     pub fn solve(console: &mut Console) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_C.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/problems/ks2022/roundC_D.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/problems/ks2022/roundC_D.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_D.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 7  |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/problems/ks2022/roundC_D.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | struct Solution {}
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `is_palindromic`, `next`, `factorial`, `calc_modulo`, and `solve` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_D.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 47 |     fn is_palindromic(s: &Vec<char>) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn next(total: &mut usize, sum: usize, s: Vec<char>){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn factorial(n: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn calc_modulo(numerator: usize, denominator: usize) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn solve(console: &mut Console) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/problems/ks2022/roundC_D.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `practice_s1_A` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod practice_s1_A;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `practice_s1_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `practice_s1_B` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod practice_s1_B;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `practice_s1_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `practice_s1_C` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod practice_s1_C;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `practice_s1_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_A` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod roundB_A;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_B` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod roundB_B;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_C` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod roundB_C;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_D` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod roundB_D;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_A` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub mod roundC_A;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_B` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod roundC_B;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_C` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub mod roundC_C;
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_D` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub mod roundC_D;
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:47:20
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn check_valid(N: usize, X: usize, Y: usize) -> Option<usize> {
[INFO] [stdout]    |                    ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:47:30
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn check_valid(N: usize, X: usize, Y: usize) -> Option<usize> {
[INFO] [stdout]    |                              ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:47:40
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn check_valid(N: usize, X: usize, Y: usize) -> Option<usize> {
[INFO] [stdout]    |                                        ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sum_N` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let sum_N = (N+1)*N/2;
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `sum_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_D.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let M = 1000000007;
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dist`
[INFO] [stdout]   --> src/problems/ks2022/roundC_C.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 |             .map(|(dist, label)| label.to_string())
[INFO] [stdout]    |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_dist`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 74 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Console` is never used
[INFO] [stdout]  --> src/toolbox/io_util.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Console<'a> = IO<StdinLock<'a>, StdoutLock<'a>>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IO` is never constructed
[INFO] [stdout]  --> src/toolbox/io_util.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct IO<R, W: std::io::Write>(R, std::io::BufWriter<W>);
[INFO] [stdout]   |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/toolbox/io_util.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new(r: R, w: W) -> IO<R, W> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub fn write<S: ToString>(&mut self, s: S) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn read<T: std::str::FromStr>(&mut self) -> T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usize0`, `chars`, and `binary_vec` are never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_A.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usize0`, `vec`, `chars`, and `binary_vec` are never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_B.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |    pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |    pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |    pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |    pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usize0`, `chars`, and `binary_vec` are never used
[INFO] [stdout]   --> src/problems/ks2022/practice_s1_C.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usize0`, `vec`, `chars`, and `binary_vec` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_A.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usize0`, `chars`, and `binary_vec` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usize0`, `vec`, `chars`, and `binary_vec` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_C.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `usize0`, `vec`, and `binary_vec` are never used
[INFO] [stdout]   --> src/problems/ks2022/roundC_D.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<R: std::io::Read, W: std::io::Write> IO<R, W> {
[INFO] [stdout]    | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn usize0(&mut self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vec<T: std::str::FromStr>(&mut self, n: usize) -> Vec<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn binary_vec(&mut self) -> Vec<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `practice_s1_A` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod practice_s1_A;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `practice_s1_a`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `practice_s1_B` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod practice_s1_B;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `practice_s1_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `practice_s1_C` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod practice_s1_C;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `practice_s1_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_A` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub mod roundB_A;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_B` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod roundB_B;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_C` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub mod roundB_C;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundB_D` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod roundB_D;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_b_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_A` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub mod roundC_A;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_B` should have a snake case name
[INFO] [stdout]  --> src/problems/ks2022/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod roundC_B;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_C` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub mod roundC_C;
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `roundC_D` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub mod roundC_D;
[INFO] [stdout]    |         ^^^^^^^^ help: convert the identifier to snake case: `round_c_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:47:20
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn check_valid(N: usize, X: usize, Y: usize) -> Option<usize> {
[INFO] [stdout]    |                    ^ help: convert the identifier to snake case: `n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:47:30
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn check_valid(N: usize, X: usize, Y: usize) -> Option<usize> {
[INFO] [stdout]    |                              ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:47:40
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn check_valid(N: usize, X: usize, Y: usize) -> Option<usize> {
[INFO] [stdout]    |                                        ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `sum_N` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_B.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let sum_N = (N+1)*N/2;
[INFO] [stdout]    |             ^^^^^ help: convert the identifier to snake case: `sum_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]   --> src/problems/ks2022/roundC_D.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let M = 1000000007;
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "6ea57951078bf37dc2246946c19b1310d6763f76e6e3bb7d8ac6d051b80a3d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ea57951078bf37dc2246946c19b1310d6763f76e6e3bb7d8ac6d051b80a3d48", kill_on_drop: false }`
[INFO] [stdout] 6ea57951078bf37dc2246946c19b1310d6763f76e6e3bb7d8ac6d051b80a3d48