[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] 34a42fa9c43b19d51e0f632aeae6a5a528495f78
[INFO] testing Xiao-VoV/rust_algorithms against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXiao-VoV%2Frust_algorithms" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[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-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Xiao-VoV/rust_algorithms on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3094eaa09f1a821a7e48b201d6de7ab5636e9cd5443e4e40a8187164a4274a03
[INFO] running `Command { std: "docker" "start" "-a" "3094eaa09f1a821a7e48b201d6de7ab5636e9cd5443e4e40a8187164a4274a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3094eaa09f1a821a7e48b201d6de7ab5636e9cd5443e4e40a8187164a4274a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3094eaa09f1a821a7e48b201d6de7ab5636e9cd5443e4e40a8187164a4274a03", kill_on_drop: false }`
[INFO] [stdout] 3094eaa09f1a821a7e48b201d6de7ab5636e9cd5443e4e40a8187164a4274a03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e889f5ccaaf41bc8eec6bd3ad3757bb5b9ff6b16789575bf16ed720272a7209f
[INFO] running `Command { std: "docker" "start" "-a" "e889f5ccaaf41bc8eec6bd3ad3757bb5b9ff6b16789575bf16ed720272a7209f", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-channel 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/files/bin_files.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/files/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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: struct `TimerFuture` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct TimerFuture {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SharedState` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct SharedState {
[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: struct `Task` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct Task {
[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: struct `LinkedList` is never constructed
[INFO] [stdout]  --> src/datastruct/list.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct 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: enum `Gender` is never used
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Gender {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Single` is never constructed
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Single {
[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: function `main` is never used
[INFO] [stdout]  --> src/erroe_handle/err_test.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render` is never used
[INFO] [stdout]  --> src/erroe_handle/err_test.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn render() -> Result<String, Box<dyn Error>> {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]  --> src/files/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_file(path: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_file` is never used
[INFO] [stdout]  --> src/files/mod.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn write_file(path: &str, content: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_metadata` is never used
[INFO] [stdout]  --> src/files/bin_files.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_metadata(path: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/files/bin_files.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[warn(unused)]
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Draw` is never used
[INFO] [stdout]  --> src/object_oriented/trait_object.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Draw {
[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: struct `Button` is never constructed
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Button {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SelectBox` is never constructed
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SelectBox {
[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] 
[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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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 4.46s
[INFO] running `Command { std: "docker" "inspect" "e889f5ccaaf41bc8eec6bd3ad3757bb5b9ff6b16789575bf16ed720272a7209f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e889f5ccaaf41bc8eec6bd3ad3757bb5b9ff6b16789575bf16ed720272a7209f", kill_on_drop: false }`
[INFO] [stdout] e889f5ccaaf41bc8eec6bd3ad3757bb5b9ff6b16789575bf16ed720272a7209f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cd713a6ef70855fd35cde74c6bd14482fe568417b82b1816db2a384d373b544
[INFO] running `Command { std: "docker" "start" "-a" "3cd713a6ef70855fd35cde74c6bd14482fe568417b82b1816db2a384d373b544", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/files/bin_files.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/files/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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: struct `TimerFuture` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct TimerFuture {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SharedState` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct SharedState {
[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: struct `Task` is never constructed
[INFO] [stdout]   --> src/async_test/timer_future.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 96 | struct Task {
[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: struct `LinkedList` is never constructed
[INFO] [stdout]  --> src/datastruct/list.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct 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: enum `Gender` is never used
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Gender {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Single` is never constructed
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Single {
[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: function `main` is never used
[INFO] [stdout]  --> src/erroe_handle/err_test.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render` is never used
[INFO] [stdout]  --> src/erroe_handle/err_test.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn render() -> Result<String, Box<dyn Error>> {
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]  --> src/files/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_file(path: &str) -> String {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_file` is never used
[INFO] [stdout]  --> src/files/mod.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn write_file(path: &str, content: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_metadata` is never used
[INFO] [stdout]  --> src/files/bin_files.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_metadata(path: &str) -> Result<(), std::io::Error> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/files/bin_files.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[warn(unused)]
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Draw` is never used
[INFO] [stdout]  --> src/object_oriented/trait_object.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Draw {
[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: struct `Button` is never constructed
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Button {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SelectBox` is never constructed
[INFO] [stdout]   --> src/object_oriented/trait_object.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct SelectBox {
[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] 
[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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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] [stderr]    Compiling rust_algorithm v0.1.0 (/opt/rustwide/workdir)
[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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) 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:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     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)]` (part of `#[warn(unused)]`) 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: enum `Gender` is never used
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Gender {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Single` is never constructed
[INFO] [stdout]  --> src/design_patterns/singleton_pattern/mod.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Single {
[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: function `main` is never used
[INFO] [stdout]  --> src/erroe_handle/err_test.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() -> Result<(), Box<dyn Error>> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `render` is never used
[INFO] [stdout]  --> src/erroe_handle/err_test.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn render() -> Result<String, Box<dyn Error>> {
[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)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/files/bin_files.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         read_metadata("/Users/xiao/Code/rust/rust_algorithms/src/files");
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let _ = read_metadata("/Users/xiao/Code/rust/rust_algorithms/src/files");
[INFO] [stdout]    |         +++++++
[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] 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 1.06s
[INFO] running `Command { std: "docker" "inspect" "3cd713a6ef70855fd35cde74c6bd14482fe568417b82b1816db2a384d373b544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd713a6ef70855fd35cde74c6bd14482fe568417b82b1816db2a384d373b544", kill_on_drop: false }`
[INFO] [stdout] 3cd713a6ef70855fd35cde74c6bd14482fe568417b82b1816db2a384d373b544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e77cc0bdacd0360b484b0006c749639838a773a7b4b71904e6cc12a466ef872
[INFO] running `Command { std: "docker" "start" "-a" "8e77cc0bdacd0360b484b0006c749639838a773a7b4b71904e6cc12a466ef872", 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/files/bin_files.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/files/mod.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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: struct `TimerFuture` is never constructed
[INFO] [stderr]   --> src/async_test/timer_future.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub struct TimerFuture {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SharedState` is never constructed
[INFO] [stderr]   --> src/async_test/timer_future.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | struct SharedState {
[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: struct `Task` is never constructed
[INFO] [stderr]   --> src/async_test/timer_future.rs:96:8
[INFO] [stderr]    |
[INFO] [stderr] 96 | struct Task {
[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: struct `LinkedList` is never constructed
[INFO] [stderr]  --> src/datastruct/list.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct 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: enum `Gender` is never used
[INFO] [stderr]  --> src/design_patterns/singleton_pattern/mod.rs:1:6
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum Gender {
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Single` is never constructed
[INFO] [stderr]  --> src/design_patterns/singleton_pattern/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Single {
[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: function `main` is never used
[INFO] [stderr]  --> src/erroe_handle/err_test.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn main() -> Result<(), Box<dyn Error>> {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `render` is never used
[INFO] [stderr]  --> src/erroe_handle/err_test.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn render() -> Result<String, Box<dyn Error>> {
[INFO] [stderr]   |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_file` is never used
[INFO] [stderr]  --> src/files/mod.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn read_file(path: &str) -> String {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `write_file` is never used
[INFO] [stderr]  --> src/files/mod.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn write_file(path: &str, content: &str) {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_metadata` is never used
[INFO] [stderr]  --> src/files/bin_files.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn read_metadata(path: &str) -> Result<(), std::io::Error> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/files/bin_files.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[warn(unused)]
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr]   = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Draw` is never used
[INFO] [stderr]  --> src/object_oriented/trait_object.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait Draw {
[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: struct `Button` is never constructed
[INFO] [stderr]   --> src/object_oriented/trait_object.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Button {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `SelectBox` is never constructed
[INFO] [stderr]   --> src/object_oriented/trait_object.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub struct SelectBox {
[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] 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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     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: 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: 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: unused `Result` that must be used
[INFO] [stderr]   --> src/files/bin_files.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         read_metadata("/Users/xiao/Code/rust/rust_algorithms/src/files");
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let _ = read_metadata("/Users/xiao/Code/rust/rust_algorithms/src/files");
[INFO] [stderr]    |         +++++++
[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: 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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let _ = handal.join();
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_algorithm` (lib) generated 64 warnings (run `cargo fix --lib -p rust_algorithm` to apply 11 suggestions)
[INFO] [stderr] warning: `rust_algorithm` (lib test) generated 35 warnings (24 duplicates) (run `cargo fix --lib -p rust_algorithm --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_algorithm-b768016567c6a518)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test object_oriented::trait_object::test::OOP_test ... ok
[INFO] [stdout] test search::linear_search::tests::search_strings ... ok
[INFO] [stdout] test sorting::bubble_sort::bubble_sort_test ... ok
[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 sorting::merge_sort::test::merge_sort_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 thread::shared_state_concurrency::test::test_shared_state ... ok
[INFO] [stdout] test datastruct::list::test::list_test ... ok
[INFO] [stdout] test design_patterns::singleton_pattern::test::test_singleton ... ok
[INFO] [stdout] test thread::thread_message::test::thread_message_test ... ok
[INFO] [stdout] test files::bin_files::test::test_read_bin_files ... ok
[INFO] [stdout] test files::tests::test_read_file ... FAILED
[INFO] [stdout] test files::tests::test_write_file ... FAILED
[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] [stdout] 
[INFO] [stdout] failures:
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] ---- files::tests::test_read_file stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'files::tests::test_read_file' (20) panicked at src/files/mod.rs:5:30:
[INFO] [stdout] Unable to read file: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5765edc0b702 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5765edc0b702 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::trace_unsynchronized::<std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5765edc0b702 - std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5765edc0b702 - <<std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c5ed12ab89cc536a]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5765edc2084a - <core[c5ed12ab89cc536a]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5765edc2084a - core[c5ed12ab89cc536a]::fmt::write
[INFO] [stdout]    6:     0x5765edc10c46 - std[716c9a7a72e5c14e]::io::default_write_fmt::<alloc[9c68fdf4f4f29218]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5765edc10c46 - <alloc[9c68fdf4f4f29218]::vec::Vec<u8> as std[716c9a7a72e5c14e]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5765edbe950f - <std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5765edbe950f - std[716c9a7a72e5c14e]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5765edc03329 - std[716c9a7a72e5c14e]::panicking::default_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5765edb9b40e - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5765edb9b40e - test[64760d2bdea328cc]::test_main_with_exit_callback::<test[64760d2bdea328cc]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5765edc034e2 - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5765edc034e2 - std[716c9a7a72e5c14e]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5765edbe95c8 - std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5765edbe0de9 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_end_short_backtrace::<std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5765edbea41d - __rustc[4f0b026143eab78e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5765edc20f8c - core[c5ed12ab89cc536a]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5765edc20d02 - core[c5ed12ab89cc536a]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5765edb65eac - <core[c5ed12ab89cc536a]::result::Result<alloc[9c68fdf4f4f29218]::string::String, std[716c9a7a72e5c14e]::io::error::Error>>::expect
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x5765edb87be2 - rust_algorithm[8342d1e895767c9e]::files::read_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/files/mod.rs:5:30
[INFO] [stdout]   22:     0x5765edb7b662 - rust_algorithm[8342d1e895767c9e]::files::tests::test_read_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/files/mod.rs:17:23
[INFO] [stdout]   23:     0x5765edb79bd7 - rust_algorithm[8342d1e895767c9e]::files::tests::test_read_file::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/files/mod.rs:16:24
[INFO] [stdout]   24:     0x5765edb77e76 - <rust_algorithm[8342d1e895767c9e]::files::tests::test_read_file::{closure#0} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5765edb8f7bb - <fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5765edb8f7bb - test[64760d2bdea328cc]::__rust_begin_short_backtrace::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x5765edb9c01a - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panicking::catch_unwind::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test_in_process
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x5765edb964e4 - test[64760d2bdea328cc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x5765edb964e4 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_begin_short_backtrace::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x5765edb9eb12 - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panicking::catch_unwind::<(), core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x5765edb9eb12 - <std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x5765edc0aa6f - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn core[c5ed12ab89cc536a]::ops::function::FnOnce<(), Output = ()> + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x5765edc0aa6f - <std[716c9a7a72e5c14e]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   45:     0x7b66dd1eaaa4 - <unknown>
[INFO] [stdout]   46:     0x7b66dd277a64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- files::tests::test_write_file stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'files::tests::test_write_file' (21) panicked at src/files/mod.rs:9:30:
[INFO] [stdout] Unable to write file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5765edc0b702 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5765edc0b702 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::trace_unsynchronized::<std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5765edc0b702 - std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5765edc0b702 - <<std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c5ed12ab89cc536a]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5765edc2084a - <core[c5ed12ab89cc536a]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5765edc2084a - core[c5ed12ab89cc536a]::fmt::write
[INFO] [stdout]    6:     0x5765edc10c46 - std[716c9a7a72e5c14e]::io::default_write_fmt::<alloc[9c68fdf4f4f29218]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5765edc10c46 - <alloc[9c68fdf4f4f29218]::vec::Vec<u8> as std[716c9a7a72e5c14e]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5765edbe950f - <std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5765edbe950f - std[716c9a7a72e5c14e]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5765edc03329 - std[716c9a7a72e5c14e]::panicking::default_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5765edb9b40e - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5765edb9b40e - test[64760d2bdea328cc]::test_main_with_exit_callback::<test[64760d2bdea328cc]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5765edc034e2 - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5765edc034e2 - std[716c9a7a72e5c14e]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5765edbe95c8 - std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5765edbe0de9 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_end_short_backtrace::<std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5765edbea41d - __rustc[4f0b026143eab78e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5765edc20f8c - core[c5ed12ab89cc536a]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5765edc20d02 - core[c5ed12ab89cc536a]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5765edb6602c - <core[c5ed12ab89cc536a]::result::Result<(), std[716c9a7a72e5c14e]::io::error::Error>>::expect
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1185:23
[INFO] [stdout]   21:     0x5765edb87b98 - rust_algorithm[8342d1e895767c9e]::files::write_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/files/mod.rs:9:30
[INFO] [stdout]   22:     0x5765edb7b789 - rust_algorithm[8342d1e895767c9e]::files::tests::test_write_file
[INFO] [stdout]                                at /opt/rustwide/workdir/src/files/mod.rs:25:9
[INFO] [stdout]   23:     0x5765edb79c07 - rust_algorithm[8342d1e895767c9e]::files::tests::test_write_file::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/files/mod.rs:23:25
[INFO] [stdout]   24:     0x5765edb77eb6 - <rust_algorithm[8342d1e895767c9e]::files::tests::test_write_file::{closure#0} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5765edb8f7bb - <fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x5765edb8f7bb - test[64760d2bdea328cc]::__rust_begin_short_backtrace::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x5765edb9c01a - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panicking::catch_unwind::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test_in_process
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x5765edb964e4 - test[64760d2bdea328cc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x5765edb964e4 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_begin_short_backtrace::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x5765edb9eb12 - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panicking::catch_unwind::<(), core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x5765edb9eb12 - <std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x5765edc0aa6f - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn core[c5ed12ab89cc536a]::ops::function::FnOnce<(), Output = ()> + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x5765edc0aa6f - <std[716c9a7a72e5c14e]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   45:     0x7b66dd1eaaa4 - <unknown>
[INFO] [stdout]   46:     0x7b66dd277a64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- search::binary_search::test::binary_search_test stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'search::binary_search::test::binary_search_test' (23) panicked at src/search/binary_search.rs:10:21:
[INFO] [stdout] attempt to subtract with overflow
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5765edc0b702 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5765edc0b702 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::trace_unsynchronized::<std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5765edc0b702 - std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5765edc0b702 - <<std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c5ed12ab89cc536a]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5765edc2084a - <core[c5ed12ab89cc536a]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5765edc2084a - core[c5ed12ab89cc536a]::fmt::write
[INFO] [stdout]    6:     0x5765edc10c46 - std[716c9a7a72e5c14e]::io::default_write_fmt::<alloc[9c68fdf4f4f29218]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5765edc10c46 - <alloc[9c68fdf4f4f29218]::vec::Vec<u8> as std[716c9a7a72e5c14e]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5765edbe950f - <std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5765edbe950f - std[716c9a7a72e5c14e]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5765edc03329 - std[716c9a7a72e5c14e]::panicking::default_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5765edb9b40e - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5765edb9b40e - test[64760d2bdea328cc]::test_main_with_exit_callback::<test[64760d2bdea328cc]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5765edc034e2 - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5765edc034e2 - std[716c9a7a72e5c14e]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5765edbe95fa - std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x5765edbe0de9 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_end_short_backtrace::<std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5765edbea41d - __rustc[4f0b026143eab78e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5765edc20f8c - core[c5ed12ab89cc536a]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5765edc21fe9 - core[c5ed12ab89cc536a]::panicking::panic_const::panic_const_sub_overflow
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panicking.rs:175:17
[INFO] [stdout]   20:     0x5765edb7c8ef - rust_algorithm[8342d1e895767c9e]::search::binary_search::binary_search::<i32>
[INFO] [stdout]                                at /opt/rustwide/workdir/src/search/binary_search.rs:10:21
[INFO] [stdout]   21:     0x5765edb83cf5 - rust_algorithm[8342d1e895767c9e]::search::binary_search::test::binary_search_test
[INFO] [stdout]                                at /opt/rustwide/workdir/src/search/binary_search.rs:85:19
[INFO] [stdout]   22:     0x5765edb82997 - rust_algorithm[8342d1e895767c9e]::search::binary_search::test::binary_search_test::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/search/binary_search.rs:84:32
[INFO] [stdout]   23:     0x5765edb780b6 - <rust_algorithm[8342d1e895767c9e]::search::binary_search::test::binary_search_test::{closure#0} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5765edb8f7bb - <fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5765edb8f7bb - test[64760d2bdea328cc]::__rust_begin_short_backtrace::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5765edb9c01a - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panicking::catch_unwind::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5765edb9c01a - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test_in_process
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5765edb9c01a - test[64760d2bdea328cc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5765edb964e4 - test[64760d2bdea328cc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5765edb964e4 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_begin_short_backtrace::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x5765edb9eb12 - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panicking::catch_unwind::<(), core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5765edb9eb12 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x5765edb9eb12 - <std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5765edc0aa6f - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn core[c5ed12ab89cc536a]::ops::function::FnOnce<(), Output = ()> + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x5765edc0aa6f - <std[716c9a7a72e5c14e]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x7b66dd1eaaa4 - <unknown>
[INFO] [stdout]   45:     0x7b66dd277a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     files::tests::test_read_file
[INFO] [stdout]     files::tests::test_write_file
[INFO] [stdout]     search::binary_search::test::binary_search_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 16 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e77cc0bdacd0360b484b0006c749639838a773a7b4b71904e6cc12a466ef872", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e77cc0bdacd0360b484b0006c749639838a773a7b4b71904e6cc12a466ef872", kill_on_drop: false }`
[INFO] [stdout] 8e77cc0bdacd0360b484b0006c749639838a773a7b4b71904e6cc12a466ef872
