[INFO] cloning repository https://github.com/Xiao-VoV/rust_algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Xiao-VoV/rust_algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXiao-VoV%2Frust_algorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXiao-VoV%2Frust_algorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 781d0bcc152570269243f1a24b763e83d51e5987
[INFO] testing Xiao-VoV/rust_algorithms against nightly-2025-01-18 for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXiao-VoV%2Frust_algorithms" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Xiao-VoV/rust_algorithms on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Xiao-VoV/rust_algorithms
[INFO] finished tweaking git repo https://github.com/Xiao-VoV/rust_algorithms
[INFO] tweaked toml for git repo https://github.com/Xiao-VoV/rust_algorithms written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Xiao-VoV/rust_algorithms 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" "+nightly-2025-01-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbd7fb527e05471128ac74d9a96f06d81ff2d063517fe6809f8b599f4d9fc739
[INFO] running `Command { std: "docker" "start" "-a" "cbd7fb527e05471128ac74d9a96f06d81ff2d063517fe6809f8b599f4d9fc739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbd7fb527e05471128ac74d9a96f06d81ff2d063517fe6809f8b599f4d9fc739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd7fb527e05471128ac74d9a96f06d81ff2d063517fe6809f8b599f4d9fc739", kill_on_drop: false }`
[INFO] [stdout] cbd7fb527e05471128ac74d9a96f06d81ff2d063517fe6809f8b599f4d9fc739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee4685546e23ef8d3f91aee80e2e7b728903ce537e8d4d4a0984cd35c60fd40b
[INFO] running `Command { std: "docker" "start" "-a" "ee4685546e23ef8d3f91aee80e2e7b728903ce537e8d4d4a0984cd35c60fd40b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling rust_algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use std::sync::{Arc, RwLock};
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/search/linear_search.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `iter::Rev` and `mem::swap`
[INFO] [stdout]  --> src/sorting/heap_sort.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter::Rev, mem::swap};
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/sorting/insert_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::DerefMut`
[INFO] [stdout]  --> src/sorting/merge_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::DerefMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mem::swap` and `ops::Deref`
[INFO] [stdout]  --> src/sorting/select_sort.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{mem::swap, ops::Deref};
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `male` should have an upper camel case name
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     male,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Male`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `female` should have an upper camel case name
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     female,
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Female`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `other` should have an upper camel case name
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     other,
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RecvError`
[INFO] [stdout]  --> src/thread/thread_message.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     sync::mpsc::{self, RecvError},
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/thread/mod.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/datastruct/list.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_something` is never used
[INFO] [stdout]  --> src/async_test/mod.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | async fn do_something() {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_async` is never used
[INFO] [stdout]  --> src/async_test/mod.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn test_async() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/async_test/timer_future.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl TimerFuture {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn new(duration: Duration) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Executor` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct Executor {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Spawner` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct Spawner {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `future` is never read
[INFO] [stdout]    --> src/async_test/timer_future.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 96  | struct Task {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 104 |     future: Mutex<Option<BoxFuture<'static, ()>>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_executor_and_spawner` is never used
[INFO] [stdout]    --> src/async_test/timer_future.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn new_executor_and_spawner() -> (Executor, Spawner) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `spawn` is never used
[INFO] [stdout]    --> src/async_test/timer_future.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl Spawner {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 120 |     fn spawn(&self, future: impl Future<Output = ()> + 'static + Send) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/async_test/timer_future.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | impl Executor {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 143 |     fn run(&self) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next` is never read
[INFO] [stdout]  --> src/datastruct/list.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct LinkedList {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     next: RefCell<Option<Rc<LinkedList>>>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[warn(dead_code)]
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_back`, `push_back_by_value`, and `print_list` are never used
[INFO] [stdout]   --> src/datastruct/list.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl LinkedList {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new(value: i32) -> Rc<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn push_back(&self, node: Rc<Self>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn push_back_by_value(&mut self, value: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn print_list(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Female` and `Other` are never constructed
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Gender {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Male,
[INFO] [stdout] 3 |     Female,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     Other,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Single {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     age: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 9 |     gender: Gender,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GLOBAL_SINGLE` is never used
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     static GLOBAL_SINGLE: Lazy<RwLock<super::Single>> = Lazy::new(|| {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw` is never used
[INFO] [stdout]  --> src/object_oriented/trait_object.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Draw {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] 2 |     fn draw(&self);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Screen` is never constructed
[INFO] [stdout]  --> src/object_oriented/trait_object.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Screen {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Screen {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 10 |     pub fn run(&self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Button {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     pub width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |     pub height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SelectBox {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 29 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_search` is never used
[INFO] [stdout]  --> src/search/binary_search.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn binary_search<T: PartialOrd>(vec: &mut [T], target: &T) -> Option<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn bineary_search(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search_01` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn bineary_search_01(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search_02` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn bineary_search_02(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linear_search` is never used
[INFO] [stdout]  --> src/search/linear_search.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn linear_search<T: PartialEq>(value: &T, arr: &[T]) -> Option<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/sorting/bubble_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bubble_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heap_sort_start_at_1` is never used
[INFO] [stdout]  --> src/sorting/heap_sort.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn heap_sort_start_at_1<T: Ord>(vec: &mut [T]) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_heap` is never used
[INFO] [stdout]   --> src/sorting/heap_sort.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn build_heap<T: Ord>(vec: &mut [T]) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heapify` is never used
[INFO] [stdout]   --> src/sorting/heap_sort.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn heapify<T: Ord>(vec: &mut [T], i: usize, max_index: usize) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `insert_sort` is never used
[INFO] [stdout]  --> src/sorting/insert_sort.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn insert_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge_sort` is never used
[INFO] [stdout]  --> src/sorting/merge_sort.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn merge_sort<T: Ord + Copy + Sized>(vec: &mut [T]) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge` is never used
[INFO] [stdout]   --> src/sorting/merge_sort.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn merge<T: Ord + Copy>(vec: &mut [T], mid: usize) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quick_sort` is never used
[INFO] [stdout]  --> src/sorting/quick_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn quick_sort<T: Ord + Copy>(vec: &mut [T], left: usize, right: usize) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partition` is never used
[INFO] [stdout]  --> src/sorting/quick_sort.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn partition<T: Ord + Copy>(vec: &mut [T], mut left: usize, mut right: usize) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select_sort` is never used
[INFO] [stdout]  --> src/sorting/select_sort.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn select_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `thread_new` is never used
[INFO] [stdout]  --> src/thread/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn thread_new() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Gender` is never used
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Gender {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Person {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` 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 `shared_state_concurrency` is never used
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn shared_state_concurrency() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `message_send_rev` is never used
[INFO] [stdout]  --> src/thread/thread_message.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn message_send_rev() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `GLOBAL_INSTANCE` should have a snake case name
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | mod GLOBAL_INSTANCE {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `global_instance`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/thread/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     handal.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = handal.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         i.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = i.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.12s
[INFO] running `Command { std: "docker" "inspect" "ee4685546e23ef8d3f91aee80e2e7b728903ce537e8d4d4a0984cd35c60fd40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4685546e23ef8d3f91aee80e2e7b728903ce537e8d4d4a0984cd35c60fd40b", kill_on_drop: false }`
[INFO] [stdout] ee4685546e23ef8d3f91aee80e2e7b728903ce537e8d4d4a0984cd35c60fd40b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5df2d4ce2b786083af716bc09aff6147178a82872013371fcac743de3abfed6
[INFO] running `Command { std: "docker" "start" "-a" "f5df2d4ce2b786083af716bc09aff6147178a82872013371fcac743de3abfed6", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use std::sync::{Arc, RwLock};
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/search/linear_search.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `iter::Rev` and `mem::swap`
[INFO] [stdout]  --> src/sorting/heap_sort.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter::Rev, mem::swap};
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/sorting/insert_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::DerefMut`
[INFO] [stdout]  --> src/sorting/merge_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::DerefMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mem::swap` and `ops::Deref`
[INFO] [stdout]  --> src/sorting/select_sort.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{mem::swap, ops::Deref};
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `male` should have an upper camel case name
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     male,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Male`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `female` should have an upper camel case name
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     female,
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Female`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `other` should have an upper camel case name
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     other,
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RecvError`
[INFO] [stdout]  --> src/thread/thread_message.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     sync::mpsc::{self, RecvError},
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/thread/mod.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/datastruct/list.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_something` is never used
[INFO] [stdout]  --> src/async_test/mod.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | async fn do_something() {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust_algorithm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `test_async` is never used
[INFO] [stdout]  --> src/async_test/mod.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn test_async() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/async_test/timer_future.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl TimerFuture {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn new(duration: Duration) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Executor` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 | struct Executor {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Spawner` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | struct Spawner {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `future` is never read
[INFO] [stdout]    --> src/async_test/timer_future.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 96  | struct Task {
[INFO] [stdout]     |        ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 104 |     future: Mutex<Option<BoxFuture<'static, ()>>>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_executor_and_spawner` is never used
[INFO] [stdout]    --> src/async_test/timer_future.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn new_executor_and_spawner() -> (Executor, Spawner) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `spawn` is never used
[INFO] [stdout]    --> src/async_test/timer_future.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 119 | impl Spawner {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] 120 |     fn spawn(&self, future: impl Future<Output = ()> + 'static + Send) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/async_test/timer_future.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | impl Executor {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] 143 |     fn run(&self) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `next` is never read
[INFO] [stdout]  --> src/datastruct/list.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct LinkedList {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 6 |     next: RefCell<Option<Rc<LinkedList>>>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[warn(dead_code)]
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_back`, `push_back_by_value`, and `print_list` are never used
[INFO] [stdout]   --> src/datastruct/list.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl LinkedList {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new(value: i32) -> Rc<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn push_back(&self, node: Rc<Self>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn push_back_by_value(&mut self, value: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn print_list(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Female` and `Other` are never constructed
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Gender {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Male,
[INFO] [stdout] 3 |     Female,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     Other,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Single {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     age: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 9 |     gender: Gender,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GLOBAL_SINGLE` is never used
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     static GLOBAL_SINGLE: Lazy<RwLock<super::Single>> = Lazy::new(|| {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw` is never used
[INFO] [stdout]  --> src/object_oriented/trait_object.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Draw {
[INFO] [stdout]   |           ---- method in this trait
[INFO] [stdout] 2 |     fn draw(&self);
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Screen` is never constructed
[INFO] [stdout]  --> src/object_oriented/trait_object.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Screen {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Screen {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 10 |     pub fn run(&self) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Button {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     pub width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |     pub height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SelectBox {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 29 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_search` is never used
[INFO] [stdout]  --> src/search/binary_search.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn binary_search<T: PartialOrd>(vec: &mut [T], target: &T) -> Option<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn bineary_search(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search_01` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn bineary_search_01(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search_02` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn bineary_search_02(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `linear_search` is never used
[INFO] [stdout]  --> src/search/linear_search.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn linear_search<T: PartialEq>(value: &T, arr: &[T]) -> Option<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bubble_sort` is never used
[INFO] [stdout]  --> src/sorting/bubble_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bubble_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heap_sort_start_at_1` is never used
[INFO] [stdout]  --> src/sorting/heap_sort.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn heap_sort_start_at_1<T: Ord>(vec: &mut [T]) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_heap` is never used
[INFO] [stdout]   --> src/sorting/heap_sort.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn build_heap<T: Ord>(vec: &mut [T]) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heapify` is never used
[INFO] [stdout]   --> src/sorting/heap_sort.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn heapify<T: Ord>(vec: &mut [T], i: usize, max_index: usize) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `insert_sort` is never used
[INFO] [stdout]  --> src/sorting/insert_sort.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn insert_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge_sort` is never used
[INFO] [stdout]  --> src/sorting/merge_sort.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn merge_sort<T: Ord + Copy + Sized>(vec: &mut [T]) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `merge` is never used
[INFO] [stdout]   --> src/sorting/merge_sort.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn merge<T: Ord + Copy>(vec: &mut [T], mid: usize) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `quick_sort` is never used
[INFO] [stdout]  --> src/sorting/quick_sort.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn quick_sort<T: Ord + Copy>(vec: &mut [T], left: usize, right: usize) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partition` is never used
[INFO] [stdout]  --> src/sorting/quick_sort.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn partition<T: Ord + Copy>(vec: &mut [T], mut left: usize, mut right: usize) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `select_sort` is never used
[INFO] [stdout]  --> src/sorting/select_sort.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn select_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `thread_new` is never used
[INFO] [stdout]  --> src/thread/mod.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn thread_new() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Gender` is never used
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum Gender {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Person {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` 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 `shared_state_concurrency` is never used
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn shared_state_concurrency() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `message_send_rev` is never used
[INFO] [stdout]  --> src/thread/thread_message.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn message_send_rev() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `GLOBAL_INSTANCE` should have a snake case name
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | mod GLOBAL_INSTANCE {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `global_instance`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/thread/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     handal.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = handal.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         i.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = i.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use std::sync::{Arc, RwLock};
[INFO] [stdout]    |                     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `iter::Rev` and `mem::swap`
[INFO] [stdout]  --> src/sorting/heap_sort.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{iter::Rev, mem::swap};
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/sorting/insert_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::DerefMut`
[INFO] [stdout]  --> src/sorting/merge_sort.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::DerefMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mem::swap` and `ops::Deref`
[INFO] [stdout]  --> src/sorting/select_sort.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{mem::swap, ops::Deref};
[INFO] [stdout]   |           ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error`
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     error,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `male` should have an upper camel case name
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     male,
[INFO] [stdout]   |     ^^^^ help: convert the identifier to upper camel case: `Male`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `female` should have an upper camel case name
[INFO] [stdout]  --> src/thread/shared_state_concurrency.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     female,
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Female`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `other` should have an upper camel case name
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     other,
[INFO] [stdout]    |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Other`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RecvError`
[INFO] [stdout]  --> src/thread/thread_message.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 |     sync::mpsc::{self, RecvError},
[INFO] [stdout]   |                        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/thread/mod.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     thread::{self, sleep},
[INFO] [stdout]   |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/datastruct/list.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, cell::RefCell, rc::Rc};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_something` is never used
[INFO] [stdout]  --> src/async_test/mod.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | async fn do_something() {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_async` is never used
[INFO] [stdout]  --> src/async_test/mod.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn test_async() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_back_by_value` is never used
[INFO] [stdout]   --> src/datastruct/list.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl LinkedList {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn push_back_by_value(&mut self, value: i32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:2:8
[INFO] [stdout]    |
[INFO] [stdout] 2  | #[warn(dead_code)]
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Female` and `Other` are never constructed
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Gender {
[INFO] [stdout]   |      ------ variants in this enum
[INFO] [stdout] 2 |     Male,
[INFO] [stdout] 3 |     Female,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 4 |     Other,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Single {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     age: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 9 |     gender: Gender,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GLOBAL_SINGLE` is never used
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     static GLOBAL_SINGLE: Lazy<RwLock<super::Single>> = Lazy::new(|| {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Button {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     pub width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 19 |     pub height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SelectBox {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 29 |     width: u32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 30 |     height: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn bineary_search(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search_01` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn bineary_search_01(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bineary_search_02` is never used
[INFO] [stdout]   --> src/search/binary_search.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn bineary_search_02(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `female` and `other` are never constructed
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | enum Gender {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 8  |     male,
[INFO] [stdout] 9  |     female,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 10 |     other,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Gender` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `gender` are never read
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Person {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 14 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     age: u8,
[INFO] [stdout] 16 |     gender: Gender,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `GLOBAL_INSTANCE` should have a snake case name
[INFO] [stdout]   --> src/design_patterns/singleton_pattern/mod.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | mod GLOBAL_INSTANCE {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `global_instance`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `OOP_test` should have a snake case name
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn OOP_test() {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `oop_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Quick_sort_test` should have a snake case name
[INFO] [stdout]   --> src/sorting/quick_sort.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn Quick_sort_test() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `quick_sort_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/thread/mod.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     handal.join();
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = handal.join();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/thread/shared_state_concurrency.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         i.join();
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = i.join();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "f5df2d4ce2b786083af716bc09aff6147178a82872013371fcac743de3abfed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5df2d4ce2b786083af716bc09aff6147178a82872013371fcac743de3abfed6", kill_on_drop: false }`
[INFO] [stdout] f5df2d4ce2b786083af716bc09aff6147178a82872013371fcac743de3abfed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a874c1175d69d2375592447aebc02c172a21ac1c4ed40ba085837ec42dc1fc4
[INFO] running `Command { std: "docker" "start" "-a" "4a874c1175d69d2375592447aebc02c172a21ac1c4ed40ba085837ec42dc1fc4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Arc`
[INFO] [stderr]   --> src/design_patterns/singleton_pattern/mod.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |     use std::sync::{Arc, RwLock};
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/search/linear_search.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `iter::Rev` and `mem::swap`
[INFO] [stderr]  --> src/sorting/heap_sort.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{iter::Rev, mem::swap};
[INFO] [stderr]   |           ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/sorting/insert_sort.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::DerefMut`
[INFO] [stderr]  --> src/sorting/merge_sort.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::DerefMut;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `mem::swap` and `ops::Deref`
[INFO] [stderr]  --> src/sorting/select_sort.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{mem::swap, ops::Deref};
[INFO] [stderr]   |           ^^^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `error`
[INFO] [stderr]  --> src/thread/shared_state_concurrency.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     error,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `male` should have an upper camel case name
[INFO] [stderr]  --> src/thread/shared_state_concurrency.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     male,
[INFO] [stderr]   |     ^^^^ help: convert the identifier to upper camel case: `Male`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `female` should have an upper camel case name
[INFO] [stderr]  --> src/thread/shared_state_concurrency.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     female,
[INFO] [stderr]   |     ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Female`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `other` should have an upper camel case name
[INFO] [stderr]   --> src/thread/shared_state_concurrency.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     other,
[INFO] [stderr]    |     ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Other`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RecvError`
[INFO] [stderr]  --> src/thread/thread_message.rs:2:24
[INFO] [stderr]   |
[INFO] [stderr] 2 |     sync::mpsc::{self, RecvError},
[INFO] [stderr]   |                        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `sleep`
[INFO] [stderr]  --> src/thread/mod.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     thread::{self, sleep},
[INFO] [stderr]   |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `borrow::Borrow`
[INFO] [stderr]  --> src/datastruct/list.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{borrow::Borrow, cell::RefCell, rc::Rc};
[INFO] [stderr]   |           ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `do_something` is never used
[INFO] [stderr]  --> src/async_test/mod.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | async fn do_something() {
[INFO] [stderr]   |          ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_async` is never used
[INFO] [stderr]  --> src/async_test/mod.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn test_async() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/async_test/timer_future.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 58 | impl TimerFuture {
[INFO] [stderr]    | ---------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 61 |     pub fn new(duration: Duration) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Executor` is never constructed
[INFO] [stderr]   --> src/async_test/timer_future.rs:85:8
[INFO] [stderr]    |
[INFO] [stderr] 85 | struct Executor {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Spawner` is never constructed
[INFO] [stderr]   --> src/async_test/timer_future.rs:91:8
[INFO] [stderr]    |
[INFO] [stderr] 91 | struct Spawner {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `future` is never read
[INFO] [stderr]    --> src/async_test/timer_future.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 96  | struct Task {
[INFO] [stderr]     |        ---- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 104 |     future: Mutex<Option<BoxFuture<'static, ()>>>,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `new_executor_and_spawner` is never used
[INFO] [stderr]    --> src/async_test/timer_future.rs:110:4
[INFO] [stderr]     |
[INFO] [stderr] 110 | fn new_executor_and_spawner() -> (Executor, Spawner) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `spawn` is never used
[INFO] [stderr]    --> src/async_test/timer_future.rs:120:8
[INFO] [stderr]     |
[INFO] [stderr] 119 | impl Spawner {
[INFO] [stderr]     | ------------ method in this implementation
[INFO] [stderr] 120 |     fn spawn(&self, future: impl Future<Output = ()> + 'static + Send) {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `run` is never used
[INFO] [stderr]    --> src/async_test/timer_future.rs:143:8
[INFO] [stderr]     |
[INFO] [stderr] 142 | impl Executor {
[INFO] [stderr]     | ------------- method in this implementation
[INFO] [stderr] 143 |     fn run(&self) {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `next` is never read
[INFO] [stderr]  --> src/datastruct/list.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct LinkedList {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 6 |     next: RefCell<Option<Rc<LinkedList>>>,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[warn(dead_code)]
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `push_back`, `push_back_by_value`, and `print_list` are never used
[INFO] [stderr]   --> src/datastruct/list.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl LinkedList {
[INFO] [stderr]    | --------------- associated items in this implementation
[INFO] [stderr] 18 |     pub fn new(value: i32) -> Rc<Self> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 25 |     pub fn push_back(&self, node: Rc<Self>) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     pub fn push_back_by_value(&mut self, value: i32) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 37 |     pub fn print_list(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Female` and `Other` are never constructed
[INFO] [stderr]  --> src/design_patterns/singleton_pattern/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum Gender {
[INFO] [stderr]   |      ------ variants in this enum
[INFO] [stderr] 2 |     Male,
[INFO] [stderr] 3 |     Female,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 4 |     Other,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stderr]  --> src/design_patterns/singleton_pattern/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Single {
[INFO] [stderr]   |        ------ fields in this struct
[INFO] [stderr] 7 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 8 |     age: usize,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 9 |     gender: Gender,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static `GLOBAL_SINGLE` is never used
[INFO] [stderr]   --> src/design_patterns/singleton_pattern/mod.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 |     static GLOBAL_SINGLE: Lazy<RwLock<super::Single>> = Lazy::new(|| {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `draw` is never used
[INFO] [stderr]  --> src/object_oriented/trait_object.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait Draw {
[INFO] [stderr]   |           ---- method in this trait
[INFO] [stderr] 2 |     fn draw(&self);
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Screen` is never constructed
[INFO] [stderr]  --> src/object_oriented/trait_object.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Screen {
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `run` is never used
[INFO] [stderr]   --> src/object_oriented/trait_object.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 9  | impl Screen {
[INFO] [stderr]    | ----------- method in this implementation
[INFO] [stderr] 10 |     pub fn run(&self) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `width` and `height` are never read
[INFO] [stderr]   --> src/object_oriented/trait_object.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Button {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 18 |     pub width: u32,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 19 |     pub height: u32,
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `width` and `height` are never read
[INFO] [stderr]   --> src/object_oriented/trait_object.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct SelectBox {
[INFO] [stderr]    |            --------- fields in this struct
[INFO] [stderr] 29 |     width: u32,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 30 |     height: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `binary_search` is never used
[INFO] [stderr]  --> src/search/binary_search.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn binary_search<T: PartialOrd>(vec: &mut [T], target: &T) -> Option<usize> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bineary_search` is never used
[INFO] [stderr]   --> src/search/binary_search.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn bineary_search(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bineary_search_01` is never used
[INFO] [stderr]   --> src/search/binary_search.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn bineary_search_01(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bineary_search_02` is never used
[INFO] [stderr]   --> src/search/binary_search.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn bineary_search_02(vec: &Vec<i32>, target: i64) -> Result<usize, usize> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `linear_search` is never used
[INFO] [stderr]  --> src/search/linear_search.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn linear_search<T: PartialEq>(value: &T, arr: &[T]) -> Option<usize> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `bubble_sort` is never used
[INFO] [stderr]  --> src/sorting/bubble_sort.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn bubble_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `heap_sort_start_at_1` is never used
[INFO] [stderr]  --> src/sorting/heap_sort.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn heap_sort_start_at_1<T: Ord>(vec: &mut [T]) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_heap` is never used
[INFO] [stderr]   --> src/sorting/heap_sort.rs:12:4
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn build_heap<T: Ord>(vec: &mut [T]) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `heapify` is never used
[INFO] [stderr]   --> src/sorting/heap_sort.rs:19:4
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn heapify<T: Ord>(vec: &mut [T], i: usize, max_index: usize) {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `insert_sort` is never used
[INFO] [stderr]  --> src/sorting/insert_sort.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn insert_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `merge_sort` is never used
[INFO] [stderr]  --> src/sorting/merge_sort.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn merge_sort<T: Ord + Copy + Sized>(vec: &mut [T]) {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `merge` is never used
[INFO] [stderr]   --> src/sorting/merge_sort.rs:14:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | fn merge<T: Ord + Copy>(vec: &mut [T], mid: usize) {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `quick_sort` is never used
[INFO] [stderr]  --> src/sorting/quick_sort.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn quick_sort<T: Ord + Copy>(vec: &mut [T], left: usize, right: usize) {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `partition` is never used
[INFO] [stderr]  --> src/sorting/quick_sort.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn partition<T: Ord + Copy>(vec: &mut [T], mut left: usize, mut right: usize) -> usize {
[INFO] [stderr]   |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `select_sort` is never used
[INFO] [stderr]  --> src/sorting/select_sort.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn select_sort<T>(mut vec: Vec<T>) -> Vec<T>
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `thread_new` is never used
[INFO] [stderr]  --> src/thread/mod.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn thread_new() {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Gender` is never used
[INFO] [stderr]  --> src/thread/shared_state_concurrency.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 | enum Gender {
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Person` is never constructed
[INFO] [stderr]   --> src/thread/shared_state_concurrency.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Person {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `shared_state_concurrency` is never used
[INFO] [stderr]   --> src/thread/shared_state_concurrency.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn shared_state_concurrency() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `message_send_rev` is never used
[INFO] [stderr]  --> src/thread/thread_message.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn message_send_rev() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `GLOBAL_INSTANCE` should have a snake case name
[INFO] [stderr]   --> src/design_patterns/singleton_pattern/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | mod GLOBAL_INSTANCE {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `global_instance`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/thread/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     handal.join();
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let _ = handal.join();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/thread/shared_state_concurrency.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |         i.join();
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let _ = i.join();
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/design_patterns/singleton_pattern/mod.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/lib.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `push_back_by_value` is never used
[INFO] [stderr]   --> src/datastruct/list.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl LinkedList {
[INFO] [stderr]    | --------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 33 |     pub fn push_back_by_value(&mut self, value: i32) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:2:8
[INFO] [stderr]    |
[INFO] [stderr] 2  | #[warn(dead_code)]
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `female` and `other` are never constructed
[INFO] [stderr]   --> src/thread/shared_state_concurrency.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | enum Gender {
[INFO] [stderr]    |      ------ variants in this enum
[INFO] [stderr] 8  |     male,
[INFO] [stderr] 9  |     female,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 10 |     other,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Gender` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `gender` are never read
[INFO] [stderr]   --> src/thread/shared_state_concurrency.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Person {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 14 |     name: String,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 15 |     age: u8,
[INFO] [stderr] 16 |     gender: Gender,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `OOP_test` should have a snake case name
[INFO] [stderr]   --> src/object_oriented/trait_object.rs:48:12
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn OOP_test() {
[INFO] [stderr]    |            ^^^^^^^^ help: convert the identifier to snake case: `oop_test`
[INFO] [stderr] 
[INFO] [stderr] warning: function `Quick_sort_test` should have a snake case name
[INFO] [stderr]   --> src/sorting/quick_sort.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn Quick_sort_test() {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `quick_sort_test`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_algorithm` (lib) generated 55 warnings (run `cargo fix --lib -p rust_algorithm` to apply 9 suggestions)
[INFO] [stderr] warning: `rust_algorithm` (lib test) generated 32 warnings (25 duplicates) (run `cargo fix --lib -p rust_algorithm --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_algorithm-07dc463ae198278e)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test sorting::heap_sort::test::test_heap_sort ... ok
[INFO] [stdout] test sorting::insert_sort::test::insert_sort_test ... ok
[INFO] [stdout] test design_patterns::singleton_pattern::test::test_singleton ... ok
[INFO] [stdout] test search::linear_search::tests::search_strings ... ok
[INFO] [stdout] test object_oriented::trait_object::test::OOP_test ... ok
[INFO] [stdout] test datastruct::list::test::list_test ... ok
[INFO] [stdout] test sorting::quick_sort::test::Quick_sort_test ... ok
[INFO] [stdout] test sorting::select_sort::select_sort_test ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test sorting::merge_sort::test::merge_sort_test ... ok
[INFO] [stdout] test thread::thread_message::test::thread_message_test ... ok
[INFO] [stdout] test sorting::bubble_sort::bubble_sort_test ... ok
[INFO] [stdout] test thread::shared_state_concurrency::test::test_shared_state ... ok
[INFO] [stdout] test search::binary_search::test::binary_search_test ... FAILED
[INFO] [stdout] test async_test::timer_future::test_my_async ... ok
[INFO] [stdout] test thread::test::test_thread ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- search::binary_search::test::binary_search_test stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'search::binary_search::test::binary_search_test' panicked at src/search/binary_search.rs:10:21:
[INFO] [stdout] attempt to subtract with overflow
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x63d3b0e5f11a - std::backtrace_rs::backtrace::libunwind::trace::hb059275cfc8d6126
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x63d3b0e5f11a - std::backtrace_rs::backtrace::trace_unsynchronized::h2da071e4327ce3ee
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x63d3b0e5f11a - std::sys::backtrace::_print_fmt::h842a1474e6f8d23f
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x63d3b0e5f11a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h71a62eb3b9696b12
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x63d3b0e868f3 - core::fmt::rt::Argument::fmt::hdb6b616786b41dc1
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x63d3b0e868f3 - core::fmt::write::h2cc1698af7e2d686
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/mod.rs:1440:21
[INFO] [stdout]    6:     0x63d3b0e5bc73 - std::io::Write::write_fmt::hab1b4cd059a79022
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/io/mod.rs:1887:15
[INFO] [stdout]    7:     0x63d3b0e5ef62 - std::sys::backtrace::BacktraceLock::print::h147fe35b4ea13b08
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x63d3b0e6053f - std::panicking::default_hook::{{closure}}::hbd44223dbdc0d208
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:298:22
[INFO] [stdout]    9:     0x63d3b0e60358 - std::panicking::default_hook::h20f81eb0576efcec
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:322:9
[INFO] [stdout]   10:     0x63d3b0e25853 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdb53814c496a4d34
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stdout]   11:     0x63d3b0e25853 - test::test_main::{{closure}}::hc0a4963c59427c24
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x63d3b0e61033 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h591b2225413a77e9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stdout]   13:     0x63d3b0e61033 - std::panicking::rust_panic_with_hook::h625eea43051b2edc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:839:13
[INFO] [stdout]   14:     0x63d3b0e60cb6 - std::panicking::begin_panic_handler::{{closure}}::h4f9159cfbc3f6bd3
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:697:13
[INFO] [stdout]   15:     0x63d3b0e5f619 - std::sys::backtrace::__rust_end_short_backtrace::h0390abce48353151
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   16:     0x63d3b0e6097d - rust_begin_unwind
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:695:5
[INFO] [stdout]   17:     0x63d3b0e852d0 - core::panicking::panic_fmt::h9e7c637e9e5f29c9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:75:14
[INFO] [stdout]   18:     0x63d3b0e8b767 - core::panicking::panic_const::panic_const_sub_overflow::hc936e676af9fcd5b
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:178:21
[INFO] [stdout]   19:     0x63d3b0de5f6b - rust_algorithm::search::binary_search::binary_search::hed7a4b34ad893cca
[INFO] [stdout]                                at /opt/rustwide/workdir/src/search/binary_search.rs:10:21
[INFO] [stdout]   20:     0x63d3b0dd58cb - rust_algorithm::search::binary_search::test::binary_search_test::h4b37bd6f50ac240f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/search/binary_search.rs:85:19
[INFO] [stdout]   21:     0x63d3b0dd57e7 - rust_algorithm::search::binary_search::test::binary_search_test::{{closure}}::h499380500ce3cfdf
[INFO] [stdout]                                at /opt/rustwide/workdir/src/search/binary_search.rs:84:32
[INFO] [stdout]   22:     0x63d3b0ddab36 - core::ops::function::FnOnce::call_once::h1679df235e6e71e1
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x63d3b0e2afab - core::ops::function::FnOnce::call_once::he27718dfdd183f43
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x63d3b0e2afab - test::__rust_begin_short_backtrace::h4e84902998457a5d
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x63d3b0e29ee3 - test::run_test_in_process::{{closure}}::h7176fd18fc1feca0
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x63d3b0e29ee3 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf79cff2a624d8cf7
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x63d3b0e29ee3 - std::panicking::try::do_call::h3da0561d9ab99c25
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   28:     0x63d3b0e29ee3 - std::panicking::try::h41c9fa508bc61df6
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   29:     0x63d3b0e29ee3 - std::panic::catch_unwind::h6b3ff07bb5afad93
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x63d3b0e29ee3 - test::run_test_in_process::hc7253dd11b39b9f4
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x63d3b0e29ee3 - test::run_test::{{closure}}::hfb2007f8649c30bb
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x63d3b0decfc5 - test::run_test::{{closure}}::h56a17aa7a282a9f4
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x63d3b0decfc5 - std::sys::backtrace::__rust_begin_short_backtrace::hd2d2d2fb8e8c6aac
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x63d3b0df08aa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h4faa3f9db6133423
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   35:     0x63d3b0df08aa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf2e855a36a4ea846
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x63d3b0df08aa - std::panicking::try::do_call::h2f73af3616c35465
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   37:     0x63d3b0df08aa - std::panicking::try::hd1660ce9efadef5a
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   38:     0x63d3b0df08aa - std::panic::catch_unwind::h5ee8d7823b8ca744
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x63d3b0df08aa - std::thread::Builder::spawn_unchecked_::{{closure}}::h53c3a1894dce8407
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   40:     0x63d3b0df08aa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h048ce291ad4f62bf
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x63d3b0e64f6b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha52bedf99a3b4981
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]   42:     0x63d3b0e64f6b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h567748934d80ccf8
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stdout]   43:     0x63d3b0e64f6b - std::sys::pal::unix::thread::Thread::new::thread_start::h2d970728ae887adc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/pal/unix/thread.rs:106:17
[INFO] [stdout]   44:     0x783ecf568ac3 - <unknown>
[INFO] [stdout]   45:     0x783ecf5f9a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     search::binary_search::test::binary_search_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 15 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4a874c1175d69d2375592447aebc02c172a21ac1c4ed40ba085837ec42dc1fc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a874c1175d69d2375592447aebc02c172a21ac1c4ed40ba085837ec42dc1fc4", kill_on_drop: false }`
[INFO] [stdout] 4a874c1175d69d2375592447aebc02c172a21ac1c4ed40ba085837ec42dc1fc4
