[INFO] cloning repository https://github.com/lurgi/rust-basic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lurgi/rust-basic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flurgi%2Frust-basic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flurgi%2Frust-basic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be69e71bf646667757661caf301a0dfe038170b2
[INFO] testing lurgi/rust-basic against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flurgi%2Frust-basic" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lurgi/rust-basic
[INFO] finished tweaking git repo https://github.com/lurgi/rust-basic
[INFO] tweaked toml for git repo https://github.com/lurgi/rust-basic written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lurgi/rust-basic on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lurgi/rust-basic 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1adf32da03eb68a78c438bf4ffd84d1356f74e3c2d9511de80a37a4b881687fe
[INFO] running `Command { std: "docker" "start" "-a" "1adf32da03eb68a78c438bf4ffd84d1356f74e3c2d9511de80a37a4b881687fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1adf32da03eb68a78c438bf4ffd84d1356f74e3c2d9511de80a37a4b881687fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1adf32da03eb68a78c438bf4ffd84d1356f74e3c2d9511de80a37a4b881687fe", kill_on_drop: false }`
[INFO] [stdout] 1adf32da03eb68a78c438bf4ffd84d1356f74e3c2d9511de80a37a4b881687fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8dc4ac1f74260f75499549dfc53d55d7f0ea127c26cd6e268e508ed54fec4de
[INFO] running `Command { std: "docker" "start" "-a" "c8dc4ac1f74260f75499549dfc53d55d7f0ea127c26cd6e268e508ed54fec4de", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-basic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::future::Pending`
[INFO] [stdout]   --> src/day7/todo_system.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | use std::future::Pending;
[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 variable: `str`
[INFO] [stdout]   --> src/day6/vehicle.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Vehicle::Car(str) => 30,
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/day6/vehicle.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Vehicle::Train { line, station } => 20,
[INFO] [stdout]    |                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `station`
[INFO] [stdout]   --> src/day6/vehicle.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Vehicle::Train { line, station } => 20,
[INFO] [stdout]    |                                ^^^^^^^ help: try ignoring the field: `station: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]   --> src/day6/vehicle.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         Vehicle::Car(str) => format!("차종으로 이동"),
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day10_exercises` is never used
[INFO] [stdout]  --> src/day10/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day10_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FileError` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum FileError {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn read_file(_filename: &str) -> Result<String, FileError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_csv` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn parse_csv(_content: &str) -> Result<Vec<i32>, FileError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_and_parse` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn read_and_parse(_filename: &str) -> Result<Vec<i32>, FileError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_divide_result` is never used
[INFO] [stdout]   --> src/day10/safe_division.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn safe_divide_result(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_divide_option` is never used
[INFO] [stdout]   --> src/day10/safe_division.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn safe_divide_option(_a: i32, _b: i32) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day10/safe_division.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Student` is never constructed
[INFO] [stdout]   --> src/day10/student_registry.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Student {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StudentRegistry` is never constructed
[INFO] [stdout]   --> src/day10/student_registry.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct StudentRegistry {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_student`, `find_by_name`, and `get_grade` are never used
[INFO] [stdout]   --> src/day10/student_registry.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl StudentRegistry {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 45 |     // TODO: new 메서드를 구현하세요
[INFO] [stdout] 46 |     fn new() -> StudentRegistry {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn add_student(&mut self, _student: Student) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn find_by_name(&self, _name: &str) -> Option<&Student> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn get_grade(&self, _name: &str) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day10/student_registry.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day11_exercises` is never used
[INFO] [stdout]  --> src/day11/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day11_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_add` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn safe_add(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_multiply` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn safe_multiply(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_divide` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn safe_divide(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_formula` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_formula(_a: i32, _b: i32, _c: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DataError` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:38:6
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum DataError {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_raw_data` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn read_raw_data(_id: u32) -> Result<String, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_numbers` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn parse_numbers(_raw: &str) -> Result<Vec<i32>, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_numbers` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn validate_numbers(_numbers: &[i32]) -> Result<(), DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_average` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn calculate_average(_numbers: &[i32]) -> Result<f64, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_data_pipeline` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn process_data_pipeline(_id: u32) -> Result<f64, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/day11/data_pipeline.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn run() {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RegistrationError` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum RegistrationError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_email` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn validate_email(_email: &str) -> Result<(), RegistrationError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_password` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn validate_password(_password: &str) -> Result<(), RegistrationError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_age` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn validate_age(_age: u8) -> Result<(), RegistrationError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_user` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn register_user(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/day11/user_registration.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn run() {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day12_exercises` is never used
[INFO] [stdout]  --> src/day12/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day12_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, `get`, `remove`, `len`, and `is_empty` are never used
[INFO] [stdout]   --> src/day12/generic_storage.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl<T> Storage<T> {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 43 |     fn new() -> Storage<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn add(&mut self, _item: T) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn get(&self, _index: usize) -> Option<&T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn remove(&mut self, _index: usize) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display_all` is never used
[INFO] [stdout]   --> src/day12/generic_storage.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl<T: std::fmt::Display> Storage<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 74 |     fn display_all(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day12/generic_storage.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_and_value` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn print_type_and_value<T: std::fmt::Debug>(_value: T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_last` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn get_last<T>(_list: &[T]) -> Option<&T> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap_pair` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn swap_pair<T>(_pair: (T, T)) -> (T, T) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_index` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn find_index<T: PartialEq>(_list: &[T], _target: &T) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, `unwrap`, and `map` are never used
[INFO] [stdout]   --> src/day12/wrapper_struct.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T> Wrapper<T> {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 38 |     fn new(_value: T) -> Wrapper<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn get(&self) -> &T {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn unwrap(self) -> T {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn map<U, F>(self, _f: F) -> Wrapper<U>
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display` is never used
[INFO] [stdout]   --> src/day12/wrapper_struct.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl<T: std::fmt::Display> Wrapper<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 62 |     fn display(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day12/wrapper_struct.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day13_exercises` is never used
[INFO] [stdout]  --> src/day13/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day13_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> src/day13/comparable_product.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Product {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_cheapest` is never used
[INFO] [stdout]   --> src/day13/comparable_product.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn find_cheapest<T: Ord>(items: &[T]) -> &T {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_most_expensive` is never used
[INFO] [stdout]   --> src/day13/comparable_product.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn find_most_expensive<T: Ord>(items: &[T]) -> &T {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/comparable_product.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]   --> src/day13/conditional_methods.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Container<T> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> Container<T> {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 35 |     fn new(value: T) -> Container<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `duplicate` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<T: Clone> Container<T> {
[INFO] [stdout]    | --------------------------- method in this implementation
[INFO] [stdout] 42 |     fn duplicate(&self) -> (T, T) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_greater_than` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl<T: PartialOrd> Container<T> {
[INFO] [stdout]    | -------------------------------- method in this implementation
[INFO] [stdout] 49 |     fn is_greater_than(&self, other: &T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl<T: Display> Container<T> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 56 |     fn display(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Logger` is never used
[INFO] [stdout]   --> src/day13/logging_system.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | trait Logger {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConsoleLogger` is never constructed
[INFO] [stdout]   --> src/day13/logging_system.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct ConsoleLogger;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileLogger` is never constructed
[INFO] [stdout]   --> src/day13/logging_system.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct FileLogger {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `log_multiple` is never used
[INFO] [stdout]   --> src/day13/logging_system.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn log_multiple<T: Logger>(logger: &T, messages: &[&str]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/logging_system.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Shape` is never used
[INFO] [stdout]   --> src/day13/shape_trait.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | trait Shape {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/day13/shape_trait.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]   --> src/day13/shape_trait.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Circle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_shape_info` is never used
[INFO] [stdout]   --> src/day13/shape_trait.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn print_shape_info<T: Shape>(shape: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/shape_trait.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/library_system.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     BookNotFound(u32),
[INFO] [stdout]    |     ------------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 55 -     BookNotFound(u32),
[INFO] [stdout] 55 +     BookNotFound(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/library_system.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     BookAlreadyExists(u32),
[INFO] [stdout]    |     ----------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 56 -     BookAlreadyExists(u32),
[INFO] [stdout] 56 +     BookAlreadyExists(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidOperation` is never constructed
[INFO] [stdout]   --> src/day14/library_system.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | enum LibraryError {
[INFO] [stdout]    |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 57 |     InvalidOperation(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/day14/library_system.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Book {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 68 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Book` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/cache_system.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |     NotFound(String),
[INFO] [stdout]    |     -------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CacheError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 69 -     NotFound(String),
[INFO] [stdout] 69 +     NotFound(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/cache_system.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Expired(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CacheError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 70 -     Expired(String),
[INFO] [stdout] 70 +     Expired(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]    --> src/day14/cache_system.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout]  99 | impl<T: Clone> Cache<T> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn remove(&mut self, key: &str) -> Result<T, CacheError> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `owner` is never read
[INFO] [stdout]   --> src/day5/bank_account.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct BankAccount {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 29 |     // TODO: 필드들을 정의하세요
[INFO] [stdout] 30 |     owner: String,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BankAccount` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_balance` is never used
[INFO] [stdout]   --> src/day5/bank_account.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl BankAccount {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn get_balance(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day6/message.rs:28:10
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Text(String),
[INFO] [stdout]    |     ---- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 -     Text(String),
[INFO] [stdout] 28 +     Text(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `url`, `width`, and `height` are never read
[INFO] [stdout]   --> src/day6/message.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Image {
[INFO] [stdout]    |     ----- fields in this variant
[INFO] [stdout] 30 |         url: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 31 |         width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 32 |         height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `url` is never read
[INFO] [stdout]   --> src/day6/message.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Video {
[INFO] [stdout]    |     ----- field in this variant
[INFO] [stdout] 35 |         url: String,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_message` is never used
[INFO] [stdout]   --> src/day6/message.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn process_message(msg: &Message) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day7_exercises` is never used
[INFO] [stdout]  --> src/day7/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run_day7_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TodoStatus` is never used
[INFO] [stdout]   --> src/day7/todo_system.rs:77:6
[INFO] [stdout]    |
[INFO] [stdout] 77 | enum TodoStatus {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Todo` is never constructed
[INFO] [stdout]   --> src/day7/todo_system.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Todo {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `start`, `complete`, `is_completed`, and `status_text` are never used
[INFO] [stdout]    --> src/day7/todo_system.rs:97:8
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl Todo {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  96 |     // TODO: new 메서드 구현
[INFO] [stdout]  97 |     fn new(id: u32, title: String, description: String) -> Todo {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn start(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn complete(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn is_completed(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn status_text(&self) -> &str {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TodoList` is never constructed
[INFO] [stdout]    --> src/day7/todo_system.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | struct TodoList {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/day7/todo_system.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | impl TodoList {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 144 |     // TODO: new 메서드 구현
[INFO] [stdout] 145 |     fn new() -> TodoList {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     fn add(&mut self, title: String, description: String) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn get(&self, id: u32) -> Option<&Todo> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn get_mut(&mut self, id: u32) -> Option<&mut Todo> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn remove(&mut self, id: u32) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn list_all(&self) -> &Vec<Todo> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn list_by_status(&self, status: TodoStatus) -> Vec<&Todo> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     fn count_by_status(&self, status: TodoStatus) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/day7/todo_system.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 | pub fn run() {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day8_exercises` is never used
[INFO] [stdout]  --> src/day8/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day8_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |         pub fn add(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `subtract` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |         pub fn subtract(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiply` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn multiply(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divide` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 |         pub fn divide(a: f64, b: f64) -> Option<f64> {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `power` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:44:16
[INFO] [stdout]    |
[INFO] [stdout] 44 |         pub fn power(base: f64, exponent: f64) -> f64 {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square_root` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |         pub fn square_root(x: f64) -> Option<f64> {
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day8/config_management.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AppConfig` is never constructed
[INFO] [stdout]   --> src/day8/config_management.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub struct AppConfig {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_app_name`, and `enable_debug` are never used
[INFO] [stdout]   --> src/day8/config_management.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |     impl AppConfig {
[INFO] [stdout]    |     -------------- associated items in this implementation
[INFO] [stdout] 37 |         pub fn new(app_name: String, version: String) -> AppConfig {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |         pub fn get_app_name(&self) -> &str {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         pub fn enable_debug(&mut self) {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day8/library_system.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Book` is never constructed
[INFO] [stdout]   --> src/day8/library_system.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |         pub struct Book {
[INFO] [stdout]    |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_book` is never used
[INFO] [stdout]   --> src/day8/library_system.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |         pub fn create_book(title: String, author: String) -> Book {
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Member` is never constructed
[INFO] [stdout]   --> src/day8/library_system.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |         pub struct Member {
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_member` is never used
[INFO] [stdout]   --> src/day8/library_system.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |         pub fn create_member(name: String, id: u32) -> Member {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day9_exercises` is never used
[INFO] [stdout]  --> src/day9/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day9_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PhoneBook` is never constructed
[INFO] [stdout]   --> src/day9/phone_book.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct PhoneBook {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, `get`, `remove`, and `list_all` are never used
[INFO] [stdout]   --> src/day9/phone_book.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl PhoneBook {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 39 |     // TODO: new 메서드를 구현하세요
[INFO] [stdout] 40 |     fn new() -> PhoneBook {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn add(&mut self, _name: String, _phone: String) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn get(&self, _name: &str) -> Option<&String> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn remove(&mut self, _name: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn list_all(&self) -> Vec<(&String, &String)> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day9/phone_book.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_average` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn calculate_average(_scores: &Vec<i32>) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_highest` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn find_highest(_scores: &Vec<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_lowest` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn find_lowest(_scores: &Vec<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `filter_passing` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn filter_passing(_scores: &Vec<i32>, _passing_score: i32) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_words` is never used
[INFO] [stdout]   --> src/day9/word_frequency.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn count_words(_text: &str) -> HashMap<String, usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_most_frequent` is never used
[INFO] [stdout]   --> src/day9/word_frequency.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_most_frequent(_word_counts: &HashMap<String, usize>) -> Option<(String, usize)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day9/word_frequency.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "c8dc4ac1f74260f75499549dfc53d55d7f0ea127c26cd6e268e508ed54fec4de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8dc4ac1f74260f75499549dfc53d55d7f0ea127c26cd6e268e508ed54fec4de", kill_on_drop: false }`
[INFO] [stdout] c8dc4ac1f74260f75499549dfc53d55d7f0ea127c26cd6e268e508ed54fec4de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bbd494931a7eb9adb0c585ed175149ff434f83795578860dd2e58fbada4a4b9
[INFO] running `Command { std: "docker" "start" "-a" "4bbd494931a7eb9adb0c585ed175149ff434f83795578860dd2e58fbada4a4b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-basic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::future::Pending`
[INFO] [stdout]   --> src/day7/todo_system.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 | use std::future::Pending;
[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 variable: `str`
[INFO] [stdout]   --> src/day6/vehicle.rs:38:22
[INFO] [stdout]    |
[INFO] [stdout] 38 |         Vehicle::Car(str) => 30,
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/day6/vehicle.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Vehicle::Train { line, station } => 20,
[INFO] [stdout]    |                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `station`
[INFO] [stdout]   --> src/day6/vehicle.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 |         Vehicle::Train { line, station } => 20,
[INFO] [stdout]    |                                ^^^^^^^ help: try ignoring the field: `station: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]   --> src/day6/vehicle.rs:48:22
[INFO] [stdout]    |
[INFO] [stdout] 48 |         Vehicle::Car(str) => format!("차종으로 이동"),
[INFO] [stdout]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day10_exercises` is never used
[INFO] [stdout]  --> src/day10/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day10_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `FileError` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | enum FileError {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn read_file(_filename: &str) -> Result<String, FileError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_csv` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn parse_csv(_content: &str) -> Result<Vec<i32>, FileError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_and_parse` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn read_and_parse(_filename: &str) -> Result<Vec<i32>, FileError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day10/file_simulator.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_divide_result` is never used
[INFO] [stdout]   --> src/day10/safe_division.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn safe_divide_result(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_divide_option` is never used
[INFO] [stdout]   --> src/day10/safe_division.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn safe_divide_option(_a: i32, _b: i32) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day10/safe_division.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Student` is never constructed
[INFO] [stdout]   --> src/day10/student_registry.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Student {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StudentRegistry` is never constructed
[INFO] [stdout]   --> src/day10/student_registry.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | struct StudentRegistry {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_student`, `find_by_name`, and `get_grade` are never used
[INFO] [stdout]   --> src/day10/student_registry.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl StudentRegistry {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 45 |     // TODO: new 메서드를 구현하세요
[INFO] [stdout] 46 |     fn new() -> StudentRegistry {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     fn add_student(&mut self, _student: Student) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn find_by_name(&self, _name: &str) -> Option<&Student> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn get_grade(&self, _name: &str) -> Option<char> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day10/student_registry.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day11_exercises` is never used
[INFO] [stdout]  --> src/day11/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day11_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_add` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn safe_add(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_multiply` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn safe_multiply(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `safe_divide` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn safe_divide(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_formula` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn calculate_formula(_a: i32, _b: i32, _c: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day11/calculator_chaining.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `DataError` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:38:6
[INFO] [stdout]    |
[INFO] [stdout] 38 | enum DataError {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_raw_data` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn read_raw_data(_id: u32) -> Result<String, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_numbers` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn parse_numbers(_raw: &str) -> Result<Vec<i32>, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_numbers` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn validate_numbers(_numbers: &[i32]) -> Result<(), DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_average` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn calculate_average(_numbers: &[i32]) -> Result<f64, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_data_pipeline` is never used
[INFO] [stdout]   --> src/day11/data_pipeline.rs:97:4
[INFO] [stdout]    |
[INFO] [stdout] 97 | fn process_data_pipeline(_id: u32) -> Result<f64, DataError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/day11/data_pipeline.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn run() {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RegistrationError` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum RegistrationError {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_email` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn validate_email(_email: &str) -> Result<(), RegistrationError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_password` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn validate_password(_password: &str) -> Result<(), RegistrationError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `validate_age` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn validate_age(_age: u8) -> Result<(), RegistrationError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `register_user` is never used
[INFO] [stdout]   --> src/day11/user_registration.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn register_user(
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/day11/user_registration.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn run() {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day12_exercises` is never used
[INFO] [stdout]  --> src/day12/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day12_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, `get`, `remove`, `len`, and `is_empty` are never used
[INFO] [stdout]   --> src/day12/generic_storage.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | impl<T> Storage<T> {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 43 |     fn new() -> Storage<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn add(&mut self, _item: T) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn get(&self, _index: usize) -> Option<&T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     fn remove(&mut self, _index: usize) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display_all` is never used
[INFO] [stdout]   --> src/day12/generic_storage.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl<T: std::fmt::Display> Storage<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 74 |     fn display_all(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day12/generic_storage.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_type_and_value` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn print_type_and_value<T: std::fmt::Debug>(_value: T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_last` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn get_last<T>(_list: &[T]) -> Option<&T> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap_pair` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn swap_pair<T>(_pair: (T, T)) -> (T, T) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_index` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn find_index<T: PartialEq>(_list: &[T], _target: &T) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day12/generic_utilities.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, `unwrap`, and `map` are never used
[INFO] [stdout]   --> src/day12/wrapper_struct.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | impl<T> Wrapper<T> {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 38 |     fn new(_value: T) -> Wrapper<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn get(&self) -> &T {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     fn unwrap(self) -> T {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     fn map<U, F>(self, _f: F) -> Wrapper<U>
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display` is never used
[INFO] [stdout]   --> src/day12/wrapper_struct.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | impl<T: std::fmt::Display> Wrapper<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 62 |     fn display(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day12/wrapper_struct.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day13_exercises` is never used
[INFO] [stdout]  --> src/day13/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day13_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Product` is never constructed
[INFO] [stdout]   --> src/day13/comparable_product.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Product {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_cheapest` is never used
[INFO] [stdout]   --> src/day13/comparable_product.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn find_cheapest<T: Ord>(items: &[T]) -> &T {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_most_expensive` is never used
[INFO] [stdout]   --> src/day13/comparable_product.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn find_most_expensive<T: Ord>(items: &[T]) -> &T {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/comparable_product.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]   --> src/day13/conditional_methods.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Container<T> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<T> Container<T> {
[INFO] [stdout]    | -------------------- associated function in this implementation
[INFO] [stdout] 35 |     fn new(value: T) -> Container<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `duplicate` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<T: Clone> Container<T> {
[INFO] [stdout]    | --------------------------- method in this implementation
[INFO] [stdout] 42 |     fn duplicate(&self) -> (T, T) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_greater_than` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | impl<T: PartialOrd> Container<T> {
[INFO] [stdout]    | -------------------------------- method in this implementation
[INFO] [stdout] 49 |     fn is_greater_than(&self, other: &T) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl<T: Display> Container<T> {
[INFO] [stdout]    | ----------------------------- method in this implementation
[INFO] [stdout] 56 |     fn display(&self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/conditional_methods.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Logger` is never used
[INFO] [stdout]   --> src/day13/logging_system.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | trait Logger {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ConsoleLogger` is never constructed
[INFO] [stdout]   --> src/day13/logging_system.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct ConsoleLogger;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileLogger` is never constructed
[INFO] [stdout]   --> src/day13/logging_system.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct FileLogger {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `log_multiple` is never used
[INFO] [stdout]   --> src/day13/logging_system.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn log_multiple<T: Logger>(logger: &T, messages: &[&str]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/logging_system.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Shape` is never used
[INFO] [stdout]   --> src/day13/shape_trait.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | trait Shape {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/day13/shape_trait.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]   --> src/day13/shape_trait.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Circle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_shape_info` is never used
[INFO] [stdout]   --> src/day13/shape_trait.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn print_shape_info<T: Shape>(shape: &T) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day13/shape_trait.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/library_system.rs:55:18
[INFO] [stdout]    |
[INFO] [stdout] 55 |     BookNotFound(u32),
[INFO] [stdout]    |     ------------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 55 -     BookNotFound(u32),
[INFO] [stdout] 55 +     BookNotFound(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/library_system.rs:56:23
[INFO] [stdout]    |
[INFO] [stdout] 56 |     BookAlreadyExists(u32),
[INFO] [stdout]    |     ----------------- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 56 -     BookAlreadyExists(u32),
[INFO] [stdout] 56 +     BookAlreadyExists(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidOperation` is never constructed
[INFO] [stdout]   --> src/day14/library_system.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | enum LibraryError {
[INFO] [stdout]    |      ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 57 |     InvalidOperation(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> src/day14/library_system.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Book {
[INFO] [stdout]    |        ---- field in this struct
[INFO] [stdout] 68 |     id: u32,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Book` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/cache_system.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |     NotFound(String),
[INFO] [stdout]    |     -------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CacheError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 69 -     NotFound(String),
[INFO] [stdout] 69 +     NotFound(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day14/cache_system.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |     Expired(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CacheError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 70 -     Expired(String),
[INFO] [stdout] 70 +     Expired(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]    --> src/day14/cache_system.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout]  99 | impl<T: Clone> Cache<T> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 130 |     fn remove(&mut self, key: &str) -> Result<T, CacheError> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_balance` is never used
[INFO] [stdout]   --> src/day5/bank_account.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl BankAccount {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn get_balance(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day7_exercises` is never used
[INFO] [stdout]  --> src/day7/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn run_day7_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TodoStatus` is never used
[INFO] [stdout]   --> src/day7/todo_system.rs:77:6
[INFO] [stdout]    |
[INFO] [stdout] 77 | enum TodoStatus {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Todo` is never constructed
[INFO] [stdout]   --> src/day7/todo_system.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Todo {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `start`, `complete`, `is_completed`, and `status_text` are never used
[INFO] [stdout]    --> src/day7/todo_system.rs:97:8
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl Todo {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  96 |     // TODO: new 메서드 구현
[INFO] [stdout]  97 |     fn new(id: u32, title: String, description: String) -> Todo {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn start(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     fn complete(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn is_completed(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 125 |     fn status_text(&self) -> &str {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TodoList` is never constructed
[INFO] [stdout]    --> src/day7/todo_system.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | struct TodoList {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/day7/todo_system.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | impl TodoList {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 144 |     // TODO: new 메서드 구현
[INFO] [stdout] 145 |     fn new() -> TodoList {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     fn add(&mut self, title: String, description: String) -> u32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn get(&self, id: u32) -> Option<&Todo> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn get_mut(&mut self, id: u32) -> Option<&mut Todo> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     fn remove(&mut self, id: u32) -> bool {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 179 |     fn list_all(&self) -> &Vec<Todo> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     fn list_by_status(&self, status: TodoStatus) -> Vec<&Todo> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |     fn count_by_status(&self, status: TodoStatus) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/day7/todo_system.rs:199:8
[INFO] [stdout]     |
[INFO] [stdout] 199 | pub fn run() {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day8_exercises` is never used
[INFO] [stdout]  --> src/day8/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day8_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 |         pub fn add(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `subtract` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |         pub fn subtract(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiply` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn multiply(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divide` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 |         pub fn divide(a: f64, b: f64) -> Option<f64> {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `power` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:44:16
[INFO] [stdout]    |
[INFO] [stdout] 44 |         pub fn power(base: f64, exponent: f64) -> f64 {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square_root` is never used
[INFO] [stdout]   --> src/day8/calculator_module.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |         pub fn square_root(x: f64) -> Option<f64> {
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day8/config_management.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AppConfig` is never constructed
[INFO] [stdout]   --> src/day8/config_management.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub struct AppConfig {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_app_name`, and `enable_debug` are never used
[INFO] [stdout]   --> src/day8/config_management.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 36 |     impl AppConfig {
[INFO] [stdout]    |     -------------- associated items in this implementation
[INFO] [stdout] 37 |         pub fn new(app_name: String, version: String) -> AppConfig {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |         pub fn get_app_name(&self) -> &str {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |         pub fn enable_debug(&mut self) {
[INFO] [stdout]    |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day8/library_system.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Book` is never constructed
[INFO] [stdout]   --> src/day8/library_system.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |         pub struct Book {
[INFO] [stdout]    |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_book` is never used
[INFO] [stdout]   --> src/day8/library_system.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |         pub fn create_book(title: String, author: String) -> Book {
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Member` is never constructed
[INFO] [stdout]   --> src/day8/library_system.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |         pub struct Member {
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_member` is never used
[INFO] [stdout]   --> src/day8/library_system.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |         pub fn create_member(name: String, id: u32) -> Member {
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_day9_exercises` is never used
[INFO] [stdout]  --> src/day9/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn run_day9_exercises() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PhoneBook` is never constructed
[INFO] [stdout]   --> src/day9/phone_book.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct PhoneBook {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add`, `get`, `remove`, and `list_all` are never used
[INFO] [stdout]   --> src/day9/phone_book.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl PhoneBook {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 39 |     // TODO: new 메서드를 구현하세요
[INFO] [stdout] 40 |     fn new() -> PhoneBook {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn add(&mut self, _name: String, _phone: String) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn get(&self, _name: &str) -> Option<&String> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn remove(&mut self, _name: &str) -> bool {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     fn list_all(&self) -> Vec<(&String, &String)> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day9/phone_book.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_average` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn calculate_average(_scores: &Vec<i32>) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_highest` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn find_highest(_scores: &Vec<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_lowest` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn find_lowest(_scores: &Vec<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `filter_passing` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn filter_passing(_scores: &Vec<i32>, _passing_score: i32) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day9/student_grades.rs:77:8
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_words` is never used
[INFO] [stdout]   --> src/day9/word_frequency.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn count_words(_text: &str) -> HashMap<String, usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_most_frequent` is never used
[INFO] [stdout]   --> src/day9/word_frequency.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_most_frequent(_word_counts: &HashMap<String, usize>) -> Option<(String, usize)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/day9/word_frequency.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run() {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "4bbd494931a7eb9adb0c585ed175149ff434f83795578860dd2e58fbada4a4b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bbd494931a7eb9adb0c585ed175149ff434f83795578860dd2e58fbada4a4b9", kill_on_drop: false }`
[INFO] [stdout] 4bbd494931a7eb9adb0c585ed175149ff434f83795578860dd2e58fbada4a4b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5c99f908f15001d2c55d38aa63a3f691ea0119b46ff85f5da59528b6c69f1726
[INFO] running `Command { std: "docker" "start" "-a" "5c99f908f15001d2c55d38aa63a3f691ea0119b46ff85f5da59528b6c69f1726", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::future::Pending`
[INFO] [stderr]   --> src/day7/todo_system.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 | use std::future::Pending;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]   --> src/day6/vehicle.rs:38:22
[INFO] [stderr]    |
[INFO] [stderr] 38 |         Vehicle::Car(str) => 30,
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/day6/vehicle.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 |         Vehicle::Train { line, station } => 20,
[INFO] [stderr]    |                          ^^^^ help: try ignoring the field: `line: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `station`
[INFO] [stderr]   --> src/day6/vehicle.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |         Vehicle::Train { line, station } => 20,
[INFO] [stderr]    |                                ^^^^^^^ help: try ignoring the field: `station: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]   --> src/day6/vehicle.rs:48:22
[INFO] [stderr]    |
[INFO] [stderr] 48 |         Vehicle::Car(str) => format!("차종으로 이동"),
[INFO] [stderr]    |                      ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_day10_exercises` is never used
[INFO] [stderr]  --> src/day10/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run_day10_exercises() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `FileError` is never used
[INFO] [stderr]   --> src/day10/file_simulator.rs:30:6
[INFO] [stderr]    |
[INFO] [stderr] 30 | enum FileError {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_file` is never used
[INFO] [stderr]   --> src/day10/file_simulator.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn read_file(_filename: &str) -> Result<String, FileError> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_csv` is never used
[INFO] [stderr]   --> src/day10/file_simulator.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn parse_csv(_content: &str) -> Result<Vec<i32>, FileError> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_and_parse` is never used
[INFO] [stderr]   --> src/day10/file_simulator.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn read_and_parse(_filename: &str) -> Result<Vec<i32>, FileError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day10/file_simulator.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `safe_divide_result` is never used
[INFO] [stderr]   --> src/day10/safe_division.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn safe_divide_result(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `safe_divide_option` is never used
[INFO] [stderr]   --> src/day10/safe_division.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn safe_divide_option(_a: i32, _b: i32) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day10/safe_division.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Student` is never constructed
[INFO] [stderr]   --> src/day10/student_registry.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | struct Student {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StudentRegistry` is never constructed
[INFO] [stderr]   --> src/day10/student_registry.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | struct StudentRegistry {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add_student`, `find_by_name`, and `get_grade` are never used
[INFO] [stderr]   --> src/day10/student_registry.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 44 | impl StudentRegistry {
[INFO] [stderr]    | -------------------- associated items in this implementation
[INFO] [stderr] 45 |     // TODO: new 메서드를 구현하세요
[INFO] [stderr] 46 |     fn new() -> StudentRegistry {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 53 |     fn add_student(&mut self, _student: Student) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     fn find_by_name(&self, _name: &str) -> Option<&Student> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 63 |     fn get_grade(&self, _name: &str) -> Option<char> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day10/student_registry.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_day11_exercises` is never used
[INFO] [stderr]  --> src/day11/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run_day11_exercises() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `safe_add` is never used
[INFO] [stderr]   --> src/day11/calculator_chaining.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn safe_add(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `safe_multiply` is never used
[INFO] [stderr]   --> src/day11/calculator_chaining.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn safe_multiply(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `safe_divide` is never used
[INFO] [stderr]   --> src/day11/calculator_chaining.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn safe_divide(_a: i32, _b: i32) -> Result<i32, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_formula` is never used
[INFO] [stderr]   --> src/day11/calculator_chaining.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn calculate_formula(_a: i32, _b: i32, _c: i32) -> Result<i32, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day11/calculator_chaining.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `DataError` is never used
[INFO] [stderr]   --> src/day11/data_pipeline.rs:38:6
[INFO] [stderr]    |
[INFO] [stderr] 38 | enum DataError {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_raw_data` is never used
[INFO] [stderr]   --> src/day11/data_pipeline.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn read_raw_data(_id: u32) -> Result<String, DataError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_numbers` is never used
[INFO] [stderr]   --> src/day11/data_pipeline.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn parse_numbers(_raw: &str) -> Result<Vec<i32>, DataError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `validate_numbers` is never used
[INFO] [stderr]   --> src/day11/data_pipeline.rs:75:4
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn validate_numbers(_numbers: &[i32]) -> Result<(), DataError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_average` is never used
[INFO] [stderr]   --> src/day11/data_pipeline.rs:85:4
[INFO] [stderr]    |
[INFO] [stderr] 85 | fn calculate_average(_numbers: &[i32]) -> Result<f64, DataError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `process_data_pipeline` is never used
[INFO] [stderr]   --> src/day11/data_pipeline.rs:97:4
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn process_data_pipeline(_id: u32) -> Result<f64, DataError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]    --> src/day11/data_pipeline.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn run() {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `RegistrationError` is never used
[INFO] [stderr]   --> src/day11/user_registration.rs:41:6
[INFO] [stderr]    |
[INFO] [stderr] 41 | enum RegistrationError {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `validate_email` is never used
[INFO] [stderr]   --> src/day11/user_registration.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn validate_email(_email: &str) -> Result<(), RegistrationError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `validate_password` is never used
[INFO] [stderr]   --> src/day11/user_registration.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn validate_password(_password: &str) -> Result<(), RegistrationError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `validate_age` is never used
[INFO] [stderr]   --> src/day11/user_registration.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn validate_age(_age: u8) -> Result<(), RegistrationError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `register_user` is never used
[INFO] [stderr]   --> src/day11/user_registration.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn register_user(
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]    --> src/day11/user_registration.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn run() {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_day12_exercises` is never used
[INFO] [stderr]  --> src/day12/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run_day12_exercises() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add`, `get`, `remove`, `len`, and `is_empty` are never used
[INFO] [stderr]   --> src/day12/generic_storage.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | impl<T> Storage<T> {
[INFO] [stderr]    | ------------------ associated items in this implementation
[INFO] [stderr] 43 |     fn new() -> Storage<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 47 |     fn add(&mut self, _item: T) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 51 |     fn get(&self, _index: usize) -> Option<&T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 55 |     fn remove(&mut self, _index: usize) -> Option<T> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 63 |     fn len(&self) -> usize {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 67 |     fn is_empty(&self) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `display_all` is never used
[INFO] [stderr]   --> src/day12/generic_storage.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 73 | impl<T: std::fmt::Display> Storage<T> {
[INFO] [stderr]    | ------------------------------------- method in this implementation
[INFO] [stderr] 74 |     fn display_all(&self) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day12/generic_storage.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_type_and_value` is never used
[INFO] [stderr]   --> src/day12/generic_utilities.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn print_type_and_value<T: std::fmt::Debug>(_value: T) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_last` is never used
[INFO] [stderr]   --> src/day12/generic_utilities.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn get_last<T>(_list: &[T]) -> Option<&T> {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `swap_pair` is never used
[INFO] [stderr]   --> src/day12/generic_utilities.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn swap_pair<T>(_pair: (T, T)) -> (T, T) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_index` is never used
[INFO] [stderr]   --> src/day12/generic_utilities.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn find_index<T: PartialEq>(_list: &[T], _target: &T) -> Option<usize> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day12/generic_utilities.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `get`, `unwrap`, and `map` are never used
[INFO] [stderr]   --> src/day12/wrapper_struct.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 37 | impl<T> Wrapper<T> {
[INFO] [stderr]    | ------------------ associated items in this implementation
[INFO] [stderr] 38 |     fn new(_value: T) -> Wrapper<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 42 |     fn get(&self) -> &T {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 46 |     fn unwrap(self) -> T {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 50 |     fn map<U, F>(self, _f: F) -> Wrapper<U>
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `display` is never used
[INFO] [stderr]   --> src/day12/wrapper_struct.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | impl<T: std::fmt::Display> Wrapper<T> {
[INFO] [stderr]    | ------------------------------------- method in this implementation
[INFO] [stderr] 62 |     fn display(&self) {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day12/wrapper_struct.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_day13_exercises` is never used
[INFO] [stderr]  --> src/day13/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run_day13_exercises() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Product` is never constructed
[INFO] [stderr]   --> src/day13/comparable_product.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | struct Product {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_cheapest` is never used
[INFO] [stderr]   --> src/day13/comparable_product.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn find_cheapest<T: Ord>(items: &[T]) -> &T {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_most_expensive` is never used
[INFO] [stderr]   --> src/day13/comparable_product.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn find_most_expensive<T: Ord>(items: &[T]) -> &T {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day13/comparable_product.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Container` is never constructed
[INFO] [stderr]   --> src/day13/conditional_methods.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 | struct Container<T> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/day13/conditional_methods.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | impl<T> Container<T> {
[INFO] [stderr]    | -------------------- associated function in this implementation
[INFO] [stderr] 35 |     fn new(value: T) -> Container<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `duplicate` is never used
[INFO] [stderr]   --> src/day13/conditional_methods.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | impl<T: Clone> Container<T> {
[INFO] [stderr]    | --------------------------- method in this implementation
[INFO] [stderr] 42 |     fn duplicate(&self) -> (T, T) {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_greater_than` is never used
[INFO] [stderr]   --> src/day13/conditional_methods.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | impl<T: PartialOrd> Container<T> {
[INFO] [stderr]    | -------------------------------- method in this implementation
[INFO] [stderr] 49 |     fn is_greater_than(&self, other: &T) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `display` is never used
[INFO] [stderr]   --> src/day13/conditional_methods.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 55 | impl<T: Display> Container<T> {
[INFO] [stderr]    | ----------------------------- method in this implementation
[INFO] [stderr] 56 |     fn display(&self) {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day13/conditional_methods.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Logger` is never used
[INFO] [stderr]   --> src/day13/logging_system.rs:29:7
[INFO] [stderr]    |
[INFO] [stderr] 29 | trait Logger {
[INFO] [stderr]    |       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ConsoleLogger` is never constructed
[INFO] [stderr]   --> src/day13/logging_system.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | struct ConsoleLogger;
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `FileLogger` is never constructed
[INFO] [stderr]   --> src/day13/logging_system.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | struct FileLogger {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `log_multiple` is never used
[INFO] [stderr]   --> src/day13/logging_system.rs:63:4
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn log_multiple<T: Logger>(logger: &T, messages: &[&str]) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day13/logging_system.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Shape` is never used
[INFO] [stderr]   --> src/day13/shape_trait.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 | trait Shape {
[INFO] [stderr]    |       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stderr]   --> src/day13/shape_trait.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | struct Rectangle {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Circle` is never constructed
[INFO] [stderr]   --> src/day13/shape_trait.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 | struct Circle {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_shape_info` is never used
[INFO] [stderr]   --> src/day13/shape_trait.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn print_shape_info<T: Shape>(shape: &T) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day13/shape_trait.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/day14/library_system.rs:55:18
[INFO] [stderr]    |
[INFO] [stderr] 55 |     BookNotFound(u32),
[INFO] [stderr]    |     ------------ ^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 55 -     BookNotFound(u32),
[INFO] [stderr] 55 +     BookNotFound(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/day14/library_system.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |     BookAlreadyExists(u32),
[INFO] [stderr]    |     ----------------- ^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 56 -     BookAlreadyExists(u32),
[INFO] [stderr] 56 +     BookAlreadyExists(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variant `InvalidOperation` is never constructed
[INFO] [stderr]   --> src/day14/library_system.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 54 | enum LibraryError {
[INFO] [stderr]    |      ------------ variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 57 |     InvalidOperation(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `LibraryError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `id` is never read
[INFO] [stderr]   --> src/day14/library_system.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 67 | struct Book {
[INFO] [stderr]    |        ---- field in this struct
[INFO] [stderr] 68 |     id: u32,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Book` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/day14/cache_system.rs:69:14
[INFO] [stderr]    |
[INFO] [stderr] 69 |     NotFound(String),
[INFO] [stderr]    |     -------- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CacheError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 69 -     NotFound(String),
[INFO] [stderr] 69 +     NotFound(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/day14/cache_system.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |     Expired(String),
[INFO] [stderr]    |     ------- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CacheError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 70 -     Expired(String),
[INFO] [stderr] 70 +     Expired(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: method `remove` is never used
[INFO] [stderr]    --> src/day14/cache_system.rs:130:8
[INFO] [stderr]     |
[INFO] [stderr]  99 | impl<T: Clone> Cache<T> {
[INFO] [stderr]     | ----------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 130 |     fn remove(&mut self, key: &str) -> Result<T, CacheError> {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_balance` is never used
[INFO] [stderr]   --> src/day5/bank_account.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 35 | impl BankAccount {
[INFO] [stderr]    | ---------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 63 |     fn get_balance(&self) -> f64 {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_day7_exercises` is never used
[INFO] [stderr]  --> src/day7/mod.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn run_day7_exercises() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `TodoStatus` is never used
[INFO] [stderr]   --> src/day7/todo_system.rs:77:6
[INFO] [stderr]    |
[INFO] [stderr] 77 | enum TodoStatus {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Todo` is never constructed
[INFO] [stderr]   --> src/day7/todo_system.rs:87:8
[INFO] [stderr]    |
[INFO] [stderr] 87 | struct Todo {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `start`, `complete`, `is_completed`, and `status_text` are never used
[INFO] [stderr]    --> src/day7/todo_system.rs:97:8
[INFO] [stderr]     |
[INFO] [stderr]  95 | impl Todo {
[INFO] [stderr]     | --------- associated items in this implementation
[INFO] [stderr]  96 |     // TODO: new 메서드 구현
[INFO] [stderr]  97 |     fn new(id: u32, title: String, description: String) -> Todo {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     fn start(&mut self) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 112 |     fn complete(&mut self) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 117 |     fn is_completed(&self) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 125 |     fn status_text(&self) -> &str {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TodoList` is never constructed
[INFO] [stderr]    --> src/day7/todo_system.rs:136:8
[INFO] [stderr]     |
[INFO] [stderr] 136 | struct TodoList {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]    --> src/day7/todo_system.rs:145:8
[INFO] [stderr]     |
[INFO] [stderr] 143 | impl TodoList {
[INFO] [stderr]     | ------------- associated items in this implementation
[INFO] [stderr] 144 |     // TODO: new 메서드 구현
[INFO] [stderr] 145 |     fn new() -> TodoList {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 152 |     fn add(&mut self, title: String, description: String) -> u32 {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 160 |     fn get(&self, id: u32) -> Option<&Todo> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 165 |     fn get_mut(&mut self, id: u32) -> Option<&mut Todo> {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 169 |     fn remove(&mut self, id: u32) -> bool {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 179 |     fn list_all(&self) -> &Vec<Todo> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 183 |     fn list_by_status(&self, status: TodoStatus) -> Vec<&Todo> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 191 |     fn count_by_status(&self, status: TodoStatus) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]    --> src/day7/todo_system.rs:199:8
[INFO] [stderr]     |
[INFO] [stderr] 199 | pub fn run() {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_day8_exercises` is never used
[INFO] [stderr]  --> src/day8/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run_day8_exercises() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day8/calculator_module.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]   --> src/day8/calculator_module.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |         pub fn add(a: f64, b: f64) -> f64 {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `subtract` is never used
[INFO] [stderr]   --> src/day8/calculator_module.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |         pub fn subtract(a: f64, b: f64) -> f64 {
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `multiply` is never used
[INFO] [stderr]   --> src/day8/calculator_module.rs:32:16
[INFO] [stderr]    |
[INFO] [stderr] 32 |         pub fn multiply(a: f64, b: f64) -> f64 {
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `divide` is never used
[INFO] [stderr]   --> src/day8/calculator_module.rs:35:16
[INFO] [stderr]    |
[INFO] [stderr] 35 |         pub fn divide(a: f64, b: f64) -> Option<f64> {
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `power` is never used
[INFO] [stderr]   --> src/day8/calculator_module.rs:44:16
[INFO] [stderr]    |
[INFO] [stderr] 44 |         pub fn power(base: f64, exponent: f64) -> f64 {
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `square_root` is never used
[INFO] [stderr]   --> src/day8/calculator_module.rs:48:16
[INFO] [stderr]    |
[INFO] [stderr] 48 |         pub fn square_root(x: f64) -> Option<f64> {
[INFO] [stderr]    |                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day8/config_management.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `AppConfig` is never constructed
[INFO] [stderr]   --> src/day8/config_management.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub struct AppConfig {
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `get_app_name`, and `enable_debug` are never used
[INFO] [stderr]   --> src/day8/config_management.rs:37:16
[INFO] [stderr]    |
[INFO] [stderr] 36 |     impl AppConfig {
[INFO] [stderr]    |     -------------- associated items in this implementation
[INFO] [stderr] 37 |         pub fn new(app_name: String, version: String) -> AppConfig {
[INFO] [stderr]    |                ^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |         pub fn get_app_name(&self) -> &str {
[INFO] [stderr]    |                ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 49 |         pub fn enable_debug(&mut self) {
[INFO] [stderr]    |                ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day8/library_system.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Book` is never constructed
[INFO] [stderr]   --> src/day8/library_system.rs:24:20
[INFO] [stderr]    |
[INFO] [stderr] 24 |         pub struct Book {
[INFO] [stderr]    |                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_book` is never used
[INFO] [stderr]   --> src/day8/library_system.rs:29:16
[INFO] [stderr]    |
[INFO] [stderr] 29 |         pub fn create_book(title: String, author: String) -> Book {
[INFO] [stderr]    |                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Member` is never constructed
[INFO] [stderr]   --> src/day8/library_system.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |         pub struct Member {
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_member` is never used
[INFO] [stderr]   --> src/day8/library_system.rs:42:16
[INFO] [stderr]    |
[INFO] [stderr] 42 |         pub fn create_member(name: String, id: u32) -> Member {
[INFO] [stderr]    |                ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_day9_exercises` is never used
[INFO] [stderr]  --> src/day9/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn run_day9_exercises() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `PhoneBook` is never constructed
[INFO] [stderr]   --> src/day9/phone_book.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | struct PhoneBook {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add`, `get`, `remove`, and `list_all` are never used
[INFO] [stderr]   --> src/day9/phone_book.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | impl PhoneBook {
[INFO] [stderr]    | -------------- associated items in this implementation
[INFO] [stderr] 39 |     // TODO: new 메서드를 구현하세요
[INFO] [stderr] 40 |     fn new() -> PhoneBook {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 47 |     fn add(&mut self, _name: String, _phone: String) {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 52 |     fn get(&self, _name: &str) -> Option<&String> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 |     fn remove(&mut self, _name: &str) -> bool {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 62 |     fn list_all(&self) -> Vec<(&String, &String)> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day9/phone_book.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_average` is never used
[INFO] [stderr]   --> src/day9/student_grades.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn calculate_average(_scores: &Vec<i32>) -> f64 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_highest` is never used
[INFO] [stderr]   --> src/day9/student_grades.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn find_highest(_scores: &Vec<i32>) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_lowest` is never used
[INFO] [stderr]   --> src/day9/student_grades.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn find_lowest(_scores: &Vec<i32>) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `filter_passing` is never used
[INFO] [stderr]   --> src/day9/student_grades.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn filter_passing(_scores: &Vec<i32>, _passing_score: i32) -> Vec<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day9/student_grades.rs:77:8
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `count_words` is never used
[INFO] [stderr]   --> src/day9/word_frequency.rs:20:4
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn count_words(_text: &str) -> HashMap<String, usize> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_most_frequent` is never used
[INFO] [stderr]   --> src/day9/word_frequency.rs:32:4
[INFO] [stderr]    |
[INFO] [stderr] 32 | fn find_most_frequent(_word_counts: &HashMap<String, usize>) -> Option<(String, usize)> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/day9/word_frequency.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn run() {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-basic` (bin "rust-basic" test) generated 113 warnings (run `cargo fix --bin "rust-basic" -p rust-basic --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_basic-7c216c6f3df48361)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test day5::bank_account::tests::test_withdraw ... ok
[INFO] [stdout] test day5::bank_account::tests::test_account_creation ... ok
[INFO] [stdout] test day5::bank_account::tests::test_deposit ... ok
[INFO] [stdout] test day5::bank_account::tests::test_insufficient_balance ... ok
[INFO] [stdout] test day5::book::tests::test_book_borrow ... ok
[INFO] [stdout] test day5::book::tests::test_book_description ... ok
[INFO] [stdout] test day5::point::tests::test_distance_from_origin ... ok
[INFO] [stdout] test day5::point::tests::test_point_creation ... ok
[INFO] [stdout] test day6::calculator::tests::test_divide ... ok
[INFO] [stdout] test day6::calculator::tests::test_divide_by_zero ... ok
[INFO] [stdout] test day6::calculator::tests::test_subtract ... ok
[INFO] [stdout] test day6::message::tests::test_filter_long_videos ... ok
[INFO] [stdout] test day6::vehicle::tests::test_bicycle_travel_time ... ok
[INFO] [stdout] test day6::vehicle::tests::test_car_travel_time ... ok
[INFO] [stdout] test day6::message::tests::test_process_text ... ok
[INFO] [stdout] test day5::book::tests::test_book_creation ... ok
[INFO] [stdout] test day6::message::tests::test_process_video ... ok
[INFO] [stdout] test day6::vehicle::tests::test_bicycle_describe ... ok
[INFO] [stdout] test day5::book::tests::test_book_return ... ok
[INFO] [stdout] test day6::calculator::tests::test_add ... ok
[INFO] [stdout] test day5::point::tests::test_distance_to ... ok
[INFO] [stdout] test day6::vehicle::tests::test_train_travel_time ... ok
[INFO] [stdout] test day6::message::tests::test_process_image ... ok
[INFO] [stdout] test day6::vehicle::tests::test_car_describe ... ok
[INFO] [stdout] test day6::calculator::tests::test_multiply ... ok
[INFO] [stdout] test day6::vehicle::tests::test_train_describe ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- day6::vehicle::tests::test_train_describe stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'day6::vehicle::tests::test_train_describe' (49) panicked at src/day6/vehicle.rs:106:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "노선 1호선의 역삼역역에서 기차로 이동"
[INFO] [stdout]  right: "노선 1호선의 역삼역에서 기차로 이동"
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6471dacb2c02 - std::backtrace_rs::backtrace::libunwind::trace::h9ea1e07ac77a25d7
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6471dacb2c02 - std::backtrace_rs::backtrace::trace_unsynchronized::h72b75eb83b53d15a
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6471dacb2c02 - std::sys::backtrace::_print_fmt::h255777b7ec902439
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6471dacb2c02 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8a1ac49fcd7ee8ce
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6471dacc30bf - core::fmt::rt::Argument::fmt::h635cbf3c6754cc90
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6471dacc30bf - core::fmt::write::hbdcc0ec4f1bab1db
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x6471dac805a3 - std::io::default_write_fmt::h2580ece0d4b58e51
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6471dac805a3 - std::io::Write::write_fmt::hac9e42858f273b87
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6471dac8c472 - std::sys::backtrace::BacktraceLock::print::h052febbd86f7bf07
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6471dac90f4f - std::panicking::default_hook::{{closure}}::h66aeee20dd470abb
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x6471dac90de1 - std::panicking::default_hook::h9d66b9642014ce48
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x6471dac53fae - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h8c698701e444e564
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x6471dac53fae - test::test_main_with_exit_callback::{{closure}}::ha1c98e7b69c4defb
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6471dac9155f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc4f222a8a57c637a
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x6471dac9155f - std::panicking::panic_with_hook::h6d5921a1a1fa5a8e
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x6471dac913ba - std::panicking::panic_handler::{{closure}}::hafeef6f707d43542
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x6471dac8c5a9 - std::sys::backtrace::__rust_end_short_backtrace::h08cbc3319a3d0120
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x6471dac74e9d - __rustc[ce5c411ff86ab1b2]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x6471dacca930 - core::panicking::panic_fmt::h774fb860369a0f7b
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x6471dacca733 - core::panicking::assert_failed_inner::hbdde3a71af798a31
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:444:17
[INFO] [stdout]   20:     0x6471dac32383 - core::panicking::assert_failed::hf69989c0289b538d
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:399:5
[INFO] [stdout]   21:     0x6471dac30081 - rust_basic::day6::vehicle::tests::test_train_describe::h8e1dda61359168ac
[INFO] [stdout]                                at /opt/rustwide/workdir/src/day6/vehicle.rs:106:9
[INFO] [stdout]   22:     0x6471dac300d7 - rust_basic::day6::vehicle::tests::test_train_describe::{{closure}}::hd9f1b5ecec61a504
[INFO] [stdout]                                at /opt/rustwide/workdir/src/day6/vehicle.rs:100:29
[INFO] [stdout]   23:     0x6471dac31186 - core::ops::function::FnOnce::call_once::hc2938ffb2ad7011c
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6471dac53dfb - core::ops::function::FnOnce::call_once::h4f6eabe90cccb47d
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x6471dac53dfb - test::__rust_begin_short_backtrace::h94208530f2b4c8c7
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x6471dac67e0d - test::run_test_in_process::{{closure}}::hbdc6a45a78c46404
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x6471dac67e0d - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7f9d8efc7eedd165
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x6471dac67e0d - std::panicking::catch_unwind::do_call::he5edbaf126c13b99
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x6471dac67e0d - std::panicking::catch_unwind::h3d6a8652eceeabce
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x6471dac67e0d - std::panic::catch_unwind::hbef0c501dd7bb498
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6471dac67e0d - test::run_test_in_process::h400008a46a5006a0
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x6471dac67e0d - test::run_test::{{closure}}::h9a131655b31d9427
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x6471dac41354 - test::run_test::{{closure}}::he4a7177c216308c0
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x6471dac41354 - std::sys::backtrace::__rust_begin_short_backtrace::hd3980e9c55d6c539
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x6471dac44c8a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h18552df67c7aa9b8
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x6471dac44c8a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h3d7b285234641a08
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x6471dac44c8a - std::panicking::catch_unwind::do_call::h5a2b5cf36528a5b2
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x6471dac44c8a - std::panicking::catch_unwind::h7e8b531bbda77d20
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x6471dac44c8a - std::panic::catch_unwind::hf9bbb2040b4f1e6c
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x6471dac44c8a - std::thread::Builder::spawn_unchecked_::{{closure}}::h600f92cf68549574
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x6471dac44c8a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb6607307df8a1847
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x6471dac879af - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6891ad53a5ed6f52
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x6471dac879af - std::sys::thread::unix::Thread::new::thread_start::h7f3e77fa86df70af
[INFO] [stdout]                                at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7e63a1361aa4 - <unknown>
[INFO] [stdout]   45:     0x7e63a13eea64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     day6::vehicle::tests::test_train_describe
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 25 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin rust-basic`
[INFO] running `Command { std: "docker" "inspect" "5c99f908f15001d2c55d38aa63a3f691ea0119b46ff85f5da59528b6c69f1726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c99f908f15001d2c55d38aa63a3f691ea0119b46ff85f5da59528b6c69f1726", kill_on_drop: false }`
[INFO] [stdout] 5c99f908f15001d2c55d38aa63a3f691ea0119b46ff85f5da59528b6c69f1726
