[INFO] fetching crate study-rust-example 0.1.0...
[INFO] testing study-rust-example-0.1.0 against 1.75.0 for beta-1.76-1
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[INFO] validating manifest of crates.io crate study-rust-example 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate study-rust-example 0.1.0
[INFO] finished tweaking crates.io crate study-rust-example 0.1.0
[INFO] tweaked toml for crates.io crate study-rust-example 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate study-rust-example 0.1.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |         for num in (0..a1.len()) {
[INFO] [stdout]     |                    ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         for num in (0..a1.len()) {
[INFO] [stdout] 154 +         for num in 0..a1.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_map`
[INFO] [stdout]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max64_int`
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut x: u16 = 10000;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec1` is never read
[INFO] [stdout]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let some_number = Some(5);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_char`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let some_char = Some('S');
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let number: i32 = 32;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let num1: &i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let num2: &'a i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num3`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let num3: &'a mut i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let s: &'static str = "test 'static";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut s1 = String::from("hello");
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut s4 = s3;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut int1 = 188;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str_ref`
[INFO] [stdout]    --> src/ownership/ownership.rs:121:19
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_literal`
[INFO] [stdout]    --> src/ownership/ownership.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let string_literal = "hello string literal";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ownership/ownership.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let color = Color(32, 34, 43);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let point = Point(23, -23);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal` is never read
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CoinProerty {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 11 |     decimal: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum IpAddrType {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 4 |         V4,
[INFO] [stdout] 5 |         V6,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddrType` 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 `ip_addr_type` and `address` are never read
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |     struct IpAddr {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |         ip_addr_type: IpAddrType,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 11 |         address: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     enum IpAddrEnum {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |         V4(String),
[INFO] [stdout] 17 |         V6(String),
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 22 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     enum Msg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 47 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     enum Coin {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 109 |         BTC(String),
[INFO] [stdout] 110 |         ETH(String),
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 111 |         USDT(String),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_panic_self` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn call_panic_self() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cause_lib_panic` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn cause_lib_panic() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Score` is never constructed
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Score<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a> Score<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stdout] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_world` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn first_world(str: &str) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<T> Pair<T> {
[INFO] [stdout]   | --------------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 13 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_closures_study` is never used
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn example_closures_study() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Rectangle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 115 |     width: u32,
[INFO] [stdout] 116 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoe_in_size` is never used
[INFO] [stdout]   --> src/iterator_closure/iterator_process_study.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn shoe_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modify_str` is never used
[INFO] [stdout]    --> src/ownership/ownership.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stdout]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     user_name: String,
[INFO] [stdout] 5 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `coinMap` should have a snake case name
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 48 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/bin/socket_server.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         Ok((socket, addr)) => println!("Got a client: {addr:?}"),
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_game` is never used
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn guess_game() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.20s
[INFO] running `Command { std: "docker" "inspect" "14f1176199cb3a3f5572c9a209aec1a2c069b07cae98f49385a7c0696d244fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f1176199cb3a3f5572c9a209aec1a2c069b07cae98f49385a7c0696d244fc0", kill_on_drop: false }`
[INFO] [stdout] 14f1176199cb3a3f5572c9a209aec1a2c069b07cae98f49385a7c0696d244fc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] beeafee0ebf826e50e2be4ae01fc0d385ba50f66ae361aaefb51f036ff027727
[INFO] running `Command { std: "docker" "start" "-a" "beeafee0ebf826e50e2be4ae01fc0d385ba50f66ae361aaefb51f036ff027727", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |         for num in (0..a1.len()) {
[INFO] [stdout]     |                    ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         for num in (0..a1.len()) {
[INFO] [stdout] 154 +         for num in 0..a1.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_map`
[INFO] [stdout]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max64_int`
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut x: u16 = 10000;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec1` is never read
[INFO] [stdout]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let some_number = Some(5);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_char`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let some_char = Some('S');
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let number: i32 = 32;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let num1: &i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let num2: &'a i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num3`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let num3: &'a mut i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let s: &'static str = "test 'static";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut s1 = String::from("hello");
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut s4 = s3;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut int1 = 188;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str_ref`
[INFO] [stdout]    --> src/ownership/ownership.rs:121:19
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_literal`
[INFO] [stdout]    --> src/ownership/ownership.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let string_literal = "hello string literal";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ownership/ownership.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let color = Color(32, 34, 43);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let point = Point(23, -23);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal` is never read
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CoinProerty {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 11 |     decimal: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum IpAddrType {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 4 |         V4,
[INFO] [stdout] 5 |         V6,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddrType` 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 `ip_addr_type` and `address` are never read
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |     struct IpAddr {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |         ip_addr_type: IpAddrType,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 11 |         address: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     enum IpAddrEnum {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |         V4(String),
[INFO] [stdout] 17 |         V6(String),
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 22 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     enum Msg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 47 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     enum Coin {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 109 |         BTC(String),
[INFO] [stdout] 110 |         ETH(String),
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 111 |         USDT(String),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_panic_self` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn call_panic_self() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cause_lib_panic` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn cause_lib_panic() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Score` is never constructed
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Score<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a> Score<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stdout] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_world` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn first_world(str: &str) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<T> Pair<T> {
[INFO] [stdout]   | --------------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 13 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_closures_study` is never used
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn example_closures_study() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Rectangle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 115 |     width: u32,
[INFO] [stdout] 116 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoe_in_size` is never used
[INFO] [stdout]   --> src/iterator_closure/iterator_process_study.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn shoe_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modify_str` is never used
[INFO] [stdout]    --> src/ownership/ownership.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stdout]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     user_name: String,
[INFO] [stdout] 5 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `coinMap` should have a snake case name
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling study-rust-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 48 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/bin/socket_server.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         Ok((socket, addr)) => println!("Got a client: {addr:?}"),
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_game` is never used
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn guess_game() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |         for num in (0..a1.len()) {
[INFO] [stdout]     |                    ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         for num in (0..a1.len()) {
[INFO] [stdout] 154 +         for num in 0..a1.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_map`
[INFO] [stdout]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max64_int`
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut x: u16 = 10000;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec1` is never read
[INFO] [stdout]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let some_number = Some(5);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_char`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let some_char = Some('S');
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let number: i32 = 32;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let num1: &i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let num2: &'a i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num3`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let num3: &'a mut i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let s: &'static str = "test 'static";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut s1 = String::from("hello");
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut s4 = s3;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut int1 = 188;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str_ref`
[INFO] [stdout]    --> src/ownership/ownership.rs:121:19
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_literal`
[INFO] [stdout]    --> src/ownership/ownership.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let string_literal = "hello string literal";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ownership/ownership.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let color = Color(32, 34, 43);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let point = Point(23, -23);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal` is never read
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CoinProerty {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 11 |     decimal: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum IpAddrType {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 4 |         V4,
[INFO] [stdout] 5 |         V6,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddrType` 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 `ip_addr_type` and `address` are never read
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |     struct IpAddr {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |         ip_addr_type: IpAddrType,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 11 |         address: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     enum IpAddrEnum {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |         V4(String),
[INFO] [stdout] 17 |         V6(String),
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 22 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     enum Msg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 47 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     enum Coin {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 109 |         BTC(String),
[INFO] [stdout] 110 |         ETH(String),
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 111 |         USDT(String),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_panic_self` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn call_panic_self() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cause_lib_panic` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn cause_lib_panic() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Score` is never constructed
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Score<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a> Score<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stdout] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_world` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn first_world(str: &str) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<T> Pair<T> {
[INFO] [stdout]   | --------------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 13 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_closures_study` is never used
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn example_closures_study() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Rectangle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 115 |     width: u32,
[INFO] [stdout] 116 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modify_str` is never used
[INFO] [stdout]    --> src/ownership/ownership.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stdout]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     user_name: String,
[INFO] [stdout] 5 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `coinMap` should have a snake case name
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 47 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "beeafee0ebf826e50e2be4ae01fc0d385ba50f66ae361aaefb51f036ff027727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beeafee0ebf826e50e2be4ae01fc0d385ba50f66ae361aaefb51f036ff027727", kill_on_drop: false }`
[INFO] [stdout] beeafee0ebf826e50e2be4ae01fc0d385ba50f66ae361aaefb51f036ff027727
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5687610b0302625055791a4d7acb7838325f278dc5d49b323595e5dab6e05d5c
[INFO] running `Command { std: "docker" "start" "-a" "5687610b0302625055791a4d7acb7838325f278dc5d49b323595e5dab6e05d5c", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stderr]     |
[INFO] [stderr] 154 |         for num in (0..a1.len()) {
[INFO] [stderr]     |                    ^           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 154 -         for num in (0..a1.len()) {
[INFO] [stderr] 154 +         for num in 0..a1.len() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hash_map`
[INFO] [stderr]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::*`
[INFO] [stderr]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max64_int`
[INFO] [stderr]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut x: u16 = 10000;
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `vec1` is never read
[INFO] [stderr]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `values`
[INFO] [stderr]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_number`
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let some_number = Some(5);
[INFO] [stderr]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_char`
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let some_char = Some('S');
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let number: i32 = 32;
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stderr]     |
[INFO] [stderr] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stderr]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stderr]     |
[INFO] [stderr] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stderr]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num1`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let num1: &i32;
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num2`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let num2: &'a i32;
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num3`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let num3: &'a mut i32;
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let s: &'static str = "test 'static";
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut s1 = String::from("hello");
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let mut s4 = s3;
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let mut int1 = 188;
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str_ref`
[INFO] [stderr]    --> src/ownership/ownership.rs:121:19
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stderr]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string_literal`
[INFO] [stderr]    --> src/ownership/ownership.rs:223:13
[INFO] [stderr]     |
[INFO] [stderr] 223 |         let string_literal = "hello string literal";
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ownership/ownership.rs:233:13
[INFO] [stderr]     |
[INFO] [stderr] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stderr]     |             ----^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let color = Color(32, 34, 43);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let point = Point(23, -23);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: field `decimal` is never read
[INFO] [stderr]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct CoinProerty {
[INFO] [stderr]    |        ----------- field in this struct
[INFO] [stderr] 11 |     decimal: u32,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `V6` is never constructed
[INFO] [stderr]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     enum IpAddrType {
[INFO] [stderr]   |          ---------- variant in this enum
[INFO] [stderr] 4 |         V4,
[INFO] [stderr] 5 |         V6,
[INFO] [stderr]   |         ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `IpAddrType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `ip_addr_type` and `address` are never read
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 9  |     struct IpAddr {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 10 |         ip_addr_type: IpAddrType,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 11 |         address: String,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `V6` is never constructed
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     enum IpAddrEnum {
[INFO] [stderr]    |          ---------- variant in this enum
[INFO] [stderr] 16 |         V4(String),
[INFO] [stderr] 17 |         V6(String),
[INFO] [stderr]    |         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     enum Message {
[INFO] [stderr]    |          ------- variants in this enum
[INFO] [stderr] 22 |         Quit,                          // 没有数据关联
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     enum Msg {
[INFO] [stderr]    |          --- variants in this enum
[INFO] [stderr] 47 |         Quit,                          // 没有数据关联
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stderr] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stderr]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     enum Coin {
[INFO] [stderr]     |          ---- variants in this enum
[INFO] [stderr] 109 |         BTC(String),
[INFO] [stderr] 110 |         ETH(String),
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 111 |         USDT(String),
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `call_panic_self` is never used
[INFO] [stderr]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn call_panic_self() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `cause_lib_panic` is never used
[INFO] [stderr]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn cause_lib_panic() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Score` is never constructed
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | struct Score<'a> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_score` is never used
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | impl<'a> Score<'a> {
[INFO] [stderr]    | ------------------ method in this implementation
[INFO] [stderr] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stderr] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `first_world` is never used
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn first_world(str: &str) -> &str {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Pair` is never constructed
[INFO] [stderr]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Pair<T> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl<T> Pair<T> {
[INFO] [stderr]   | --------------- associated function in this implementation
[INFO] [stderr] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cmp_display` is never used
[INFO] [stderr]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stderr]    | ------------------------------------- method in this implementation
[INFO] [stderr] 13 |     fn cmp_display(&self) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `example_closures_study` is never used
[INFO] [stderr]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn example_closures_study() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `height` is never read
[INFO] [stderr]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 114 | struct Rectangle {
[INFO] [stderr]     |        --------- field in this struct
[INFO] [stderr] 115 |     width: u32,
[INFO] [stderr] 116 |     height: u32,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `shoe_in_size` is never used
[INFO] [stderr]   --> src/iterator_closure/iterator_process_study.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn shoe_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `modify_str` is never used
[INFO] [stderr]    --> src/ownership/ownership.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stderr]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct User {
[INFO] [stderr]   |        ---- fields in this struct
[INFO] [stderr] 3 |     user_id: String,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 4 |     user_name: String,
[INFO] [stderr] 5 |     age: u8,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 6 |     active: bool,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variable `coinMap` should have a snake case name
[INFO] [stderr]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stderr]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `study-rust-example` (lib) generated 48 warnings (run `cargo fix --lib -p study-rust-example` to apply 25 suggestions)
[INFO] [stderr] warning: `study-rust-example` (lib test) generated 47 warnings (47 duplicates)
[INFO] [stderr] warning: unused variable: `socket`
[INFO] [stderr]   --> src/bin/socket_server.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         Ok((socket, addr)) => println!("Got a client: {addr:?}"),
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `guess_game` is never used
[INFO] [stderr]  --> src/main.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn guess_game() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `study-rust-example` (bin "socket_server" test) generated 1 warning (run `cargo fix --bin "socket_server" --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `study-rust-example` (bin "study-rust-example" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/study_rust_example-829d92bb254deaaa)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test generic_traits_lifetime::test_study::longer_str_with_announcement_test ... ok
[INFO] [stdout] test generic_traits_lifetime::test_study::not_equal_test ... ok
[INFO] [stdout] test generic_traits_lifetime::test_study::result_generic_test ... ok
[INFO] [stdout] test iterator_closure::iterator_process_study::tests::test_iterator_demo ... ok
[INFO] [stdout] test iterator_closure::iterator_process_study::tests::test_shoe_in_size ... ok
[INFO] [stdout] test generic_traits_lifetime::test_study::assert_test ... FAILED
[INFO] [stdout] test generic_traits_lifetime::test_study::should_panic_test - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- generic_traits_lifetime::test_study::assert_test stdout ----
[INFO] [stdout] thread 'generic_traits_lifetime::test_study::assert_test' panicked at src/generic_traits_lifetime/test_study.rs:22:5:
[INFO] [stdout] test method did not contain name, value was hello Tracking
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x556679d8544c - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x556679d8544c - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x556679d8544c - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x556679d8544c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x556679daef90 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x556679daef90 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x556679d82dff - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x556679d85234 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x556679d85234 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x556679d86ef7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x556679d86be3 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x556679d575a7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x556679d575a7 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x556679d87508 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x556679d87508 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x556679d8725e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x556679d85916 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x556679d86fc2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x556679d16cf5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x556679d20382 - study_rust_example::generic_traits_lifetime::test_study::assert_test::h3422e53b530f30e8
[INFO] [stdout]                                at /opt/rustwide/workdir/src/generic_traits_lifetime/test_study.rs:22:5
[INFO] [stdout]   20:     0x556679d20157 - study_rust_example::generic_traits_lifetime::test_study::assert_test::{{closure}}::h84b1569d6928d3f3
[INFO] [stdout]                                at /opt/rustwide/workdir/src/generic_traits_lifetime/test_study.rs:18:17
[INFO] [stdout]   21:     0x556679d1d0c6 - core::ops::function::FnOnce::call_once::h3a54ad53bba9b700
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x556679d5cbff - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x556679d5cbff - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   24:     0x556679d5bc15 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   25:     0x556679d5bc15 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   26:     0x556679d5bc15 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   27:     0x556679d5bc15 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   28:     0x556679d5bc15 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   29:     0x556679d5bc15 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   30:     0x556679d5bc15 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   31:     0x556679d23ed6 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   32:     0x556679d23ed6 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   33:     0x556679d28f87 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   34:     0x556679d28f87 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   35:     0x556679d28f87 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   36:     0x556679d28f87 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   37:     0x556679d28f87 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   38:     0x556679d28f87 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   39:     0x556679d28f87 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x556679d8bf95 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   41:     0x556679d8bf95 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   42:     0x556679d8bf95 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   43:     0x7f1697d5eac3 - <unknown>
[INFO] [stdout]   44:     0x7f1697defbf4 - __clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     generic_traits_lifetime::test_study::assert_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 6 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "5687610b0302625055791a4d7acb7838325f278dc5d49b323595e5dab6e05d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5687610b0302625055791a4d7acb7838325f278dc5d49b323595e5dab6e05d5c", kill_on_drop: false }`
[INFO] [stdout] 5687610b0302625055791a4d7acb7838325f278dc5d49b323595e5dab6e05d5c
[INFO] testing study-rust-example-0.1.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate study-rust-example 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate study-rust-example 0.1.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate study-rust-example 0.1.0
[INFO] finished tweaking crates.io crate study-rust-example 0.1.0
[INFO] tweaked toml for crates.io crate study-rust-example 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate study-rust-example 0.1.0 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 032246b5e63d633db6873dc7d2709ab4f060d2f8806cac23faac1694aed087d7
[INFO] running `Command { std: "docker" "start" "-a" "032246b5e63d633db6873dc7d2709ab4f060d2f8806cac23faac1694aed087d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "032246b5e63d633db6873dc7d2709ab4f060d2f8806cac23faac1694aed087d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032246b5e63d633db6873dc7d2709ab4f060d2f8806cac23faac1694aed087d7", kill_on_drop: false }`
[INFO] [stdout] 032246b5e63d633db6873dc7d2709ab4f060d2f8806cac23faac1694aed087d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41a129c4a7105434af09981ff67a877e692e482062891f42fec29e272f94e580
[INFO] running `Command { std: "docker" "start" "-a" "41a129c4a7105434af09981ff67a877e692e482062891f42fec29e272f94e580", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling rustix v0.38.11
[INFO] [stderr]    Compiling prettyplease v0.2.14
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling shlex v1.2.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling blst v0.3.11
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.9.5
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling zeroize v1.6.0
[INFO] [stderr]    Compiling c-kzg v0.1.0
[INFO] [stderr]    Compiling study-rust-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |         for num in (0..a1.len()) {
[INFO] [stdout]     |                    ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         for num in (0..a1.len()) {
[INFO] [stdout] 154 +         for num in 0..a1.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_map`
[INFO] [stdout]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max64_int`
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut x: u16 = 10000;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec1` is never read
[INFO] [stdout]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let some_number = Some(5);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_char`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let some_char = Some('S');
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let number: i32 = 32;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let num1: &i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let num2: &'a i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num3`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let num3: &'a mut i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let s: &'static str = "test 'static";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut s1 = String::from("hello");
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut s4 = s3;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut int1 = 188;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str_ref`
[INFO] [stdout]    --> src/ownership/ownership.rs:121:19
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_literal`
[INFO] [stdout]    --> src/ownership/ownership.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let string_literal = "hello string literal";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ownership/ownership.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let color = Color(32, 34, 43);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let point = Point(23, -23);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal` is never read
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CoinProerty {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 11 |     decimal: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum IpAddrType {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 4 |         V4,
[INFO] [stdout] 5 |         V6,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddrType` 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 `ip_addr_type` and `address` are never read
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |     struct IpAddr {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |         ip_addr_type: IpAddrType,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 11 |         address: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     enum IpAddrEnum {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |         V4(String),
[INFO] [stdout] 17 |         V6(String),
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 22 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     enum Msg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 47 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     enum Coin {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 109 |         BTC(String),
[INFO] [stdout] 110 |         ETH(String),
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 111 |         USDT(String),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_panic_self` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn call_panic_self() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cause_lib_panic` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn cause_lib_panic() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Score` is never constructed
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Score<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a> Score<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stdout] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_world` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn first_world(str: &str) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<T> Pair<T> {
[INFO] [stdout]   | --------------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 13 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_closures_study` is never used
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn example_closures_study() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Rectangle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 115 |     width: u32,
[INFO] [stdout] 116 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoe_in_size` is never used
[INFO] [stdout]   --> src/iterator_closure/iterator_process_study.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn shoe_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modify_str` is never used
[INFO] [stdout]    --> src/ownership/ownership.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stdout]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     user_name: String,
[INFO] [stdout] 5 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `coinMap` should have a snake case name
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 48 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/bin/socket_server.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         Ok((socket, addr)) => println!("Got a client: {addr:?}"),
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_game` is never used
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn guess_game() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.08s
[INFO] running `Command { std: "docker" "inspect" "41a129c4a7105434af09981ff67a877e692e482062891f42fec29e272f94e580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41a129c4a7105434af09981ff67a877e692e482062891f42fec29e272f94e580", kill_on_drop: false }`
[INFO] [stdout] 41a129c4a7105434af09981ff67a877e692e482062891f42fec29e272f94e580
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cd9a18f4b605c1abec9ce255c255d8f27afbd4a079440c7eda5a3c1b06e8073
[INFO] running `Command { std: "docker" "start" "-a" "3cd9a18f4b605c1abec9ce255c255d8f27afbd4a079440c7eda5a3c1b06e8073", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |         for num in (0..a1.len()) {
[INFO] [stdout]     |                    ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         for num in (0..a1.len()) {
[INFO] [stdout] 154 +         for num in 0..a1.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_map`
[INFO] [stdout]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max64_int`
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut x: u16 = 10000;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec1` is never read
[INFO] [stdout]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let some_number = Some(5);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_char`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let some_char = Some('S');
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let number: i32 = 32;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let num1: &i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let num2: &'a i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num3`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let num3: &'a mut i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let s: &'static str = "test 'static";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut s1 = String::from("hello");
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut s4 = s3;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut int1 = 188;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str_ref`
[INFO] [stdout]    --> src/ownership/ownership.rs:121:19
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_literal`
[INFO] [stdout]    --> src/ownership/ownership.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let string_literal = "hello string literal";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ownership/ownership.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let color = Color(32, 34, 43);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let point = Point(23, -23);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal` is never read
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CoinProerty {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 11 |     decimal: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum IpAddrType {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 4 |         V4,
[INFO] [stdout] 5 |         V6,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddrType` 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 `ip_addr_type` and `address` are never read
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |     struct IpAddr {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |         ip_addr_type: IpAddrType,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 11 |         address: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     enum IpAddrEnum {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |         V4(String),
[INFO] [stdout] 17 |         V6(String),
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 22 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     enum Msg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 47 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     enum Coin {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 109 |         BTC(String),
[INFO] [stdout] 110 |         ETH(String),
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 111 |         USDT(String),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_panic_self` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn call_panic_self() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cause_lib_panic` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn cause_lib_panic() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Score` is never constructed
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Score<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a> Score<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stdout] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_world` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn first_world(str: &str) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<T> Pair<T> {
[INFO] [stdout]   | --------------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 13 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_closures_study` is never used
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn example_closures_study() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Rectangle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 115 |     width: u32,
[INFO] [stdout] 116 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoe_in_size` is never used
[INFO] [stdout]   --> src/iterator_closure/iterator_process_study.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn shoe_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modify_str` is never used
[INFO] [stdout]    --> src/ownership/ownership.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling study-rust-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stdout]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     user_name: String,
[INFO] [stdout] 5 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `coinMap` should have a snake case name
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 48 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `socket`
[INFO] [stdout]   --> src/bin/socket_server.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |         Ok((socket, addr)) => println!("Got a client: {addr:?}"),
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_game` is never used
[INFO] [stdout]  --> src/main.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn guess_game() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stdout]     |
[INFO] [stdout] 154 |         for num in (0..a1.len()) {
[INFO] [stdout]     |                    ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 154 -         for num in (0..a1.len()) {
[INFO] [stdout] 154 +         for num in 0..a1.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash_map`
[INFO] [stdout]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::*`
[INFO] [stdout]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max64_int`
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut x: u16 = 10000;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vec1` is never read
[INFO] [stdout]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let some_number = Some(5);
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `some_char`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let some_char = Some('S');
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let number: i32 = 32;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stdout]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str`
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stdout]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num1`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let num1: &i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num2`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let num2: &'a i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num3`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let num3: &'a mut i32;
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let s: &'static str = "test 'static";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut s1 = String::from("hello");
[INFO] [stdout]    |             ----^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |             let mut s4 = s3;
[INFO] [stdout]    |                 ----^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ownership/ownership.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut int1 = 188;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `str_ref`
[INFO] [stdout]    --> src/ownership/ownership.rs:121:19
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `string_literal`
[INFO] [stdout]    --> src/ownership/ownership.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let string_literal = "hello string literal";
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ownership/ownership.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let color = Color(32, 34, 43);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point`
[INFO] [stdout]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let point = Point(23, -23);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `decimal` is never read
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CoinProerty {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 11 |     decimal: u32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     enum IpAddrType {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 4 |         V4,
[INFO] [stdout] 5 |         V6,
[INFO] [stdout]   |         ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `IpAddrType` 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 `ip_addr_type` and `address` are never read
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  |     struct IpAddr {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 10 |         ip_addr_type: IpAddrType,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 11 |         address: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `V6` is never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     enum IpAddrEnum {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] 16 |         V4(String),
[INFO] [stdout] 17 |         V6(String),
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     enum Message {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 22 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stdout]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     enum Msg {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] 47 |         Quit,                          // 没有数据关联
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stdout] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stdout]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |     enum Coin {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] 109 |         BTC(String),
[INFO] [stdout] 110 |         ETH(String),
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 111 |         USDT(String),
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `call_panic_self` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn call_panic_self() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cause_lib_panic` is never used
[INFO] [stdout]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn cause_lib_panic() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Score` is never constructed
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Score<'a> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_score` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<'a> Score<'a> {
[INFO] [stdout]    | ------------------ method in this implementation
[INFO] [stdout] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stdout] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_world` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stdout]    |
[INFO] [stdout] 46 | fn first_world(str: &str) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Pair<T> {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<T> Pair<T> {
[INFO] [stdout]   | --------------- associated function in this implementation
[INFO] [stdout] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cmp_display` is never used
[INFO] [stdout]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 13 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `example_closures_study` is never used
[INFO] [stdout]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn example_closures_study() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Rectangle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] 115 |     width: u32,
[INFO] [stdout] 116 |     height: u32,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modify_str` is never used
[INFO] [stdout]    --> src/ownership/ownership.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stdout]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     user_name: String,
[INFO] [stdout] 5 |     age: u8,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     active: bool,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `coinMap` should have a snake case name
[INFO] [stdout]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 47 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "3cd9a18f4b605c1abec9ce255c255d8f27afbd4a079440c7eda5a3c1b06e8073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd9a18f4b605c1abec9ce255c255d8f27afbd4a079440c7eda5a3c1b06e8073", kill_on_drop: false }`
[INFO] [stdout] 3cd9a18f4b605c1abec9ce255c255d8f27afbd4a079440c7eda5a3c1b06e8073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb8ae6aedcfe1d728f5fabcf030e53a7eca301d7fd14d02e8dac40bb8006e0e3
[INFO] running `Command { std: "docker" "start" "-a" "fb8ae6aedcfe1d728f5fabcf030e53a7eca301d7fd14d02e8dac40bb8006e0e3", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]    --> src/basic_concept/basic_concept.rs:154:20
[INFO] [stderr]     |
[INFO] [stderr] 154 |         for num in (0..a1.len()) {
[INFO] [stderr]     |                    ^           ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 154 -         for num in (0..a1.len()) {
[INFO] [stderr] 154 +         for num in 0..a1.len() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hash_map`
[INFO] [stderr]  --> src/common_collection/hash_map_study.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{hash_map, HashMap};
[INFO] [stderr]   |                        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]  --> src/package_crate_module/package_crate_module.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::*`
[INFO] [stderr]  --> src/package_crate_module/package_crate_module.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `max64_int`
[INFO] [stderr]   --> src/basic_concept/basic_concept.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let max64_int = 2 ^ 64 - 1;
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max64_int`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `x` is never read
[INFO] [stderr]   --> src/basic_concept/basic_concept.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |         let mut x: u16 = 10000;
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `vec1` is never read
[INFO] [stderr]   --> src/common_collection/vector_study.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut vec1: Vec<i32> = Vec::new();
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `values`
[INFO] [stderr]   --> src/common_collection/vector_study.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let values: [i32; 3] = [12, 23, 43];
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_number`
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         let some_number = Some(5);
[INFO] [stderr]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `some_char`
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let some_char = Some('S');
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_char`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `number`
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:82:13
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let number: i32 = 32;
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]    --> src/enum_pattern_match/enum_pattern_match.rs:119:23
[INFO] [stderr]     |
[INFO] [stderr] 119 |             Coin::ETH(str) => 100_0000_0000_0000_0000,
[INFO] [stderr]     |                       ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]    --> src/enum_pattern_match/enum_pattern_match.rs:120:24
[INFO] [stderr]     |
[INFO] [stderr] 120 |             Coin::USDT(str) => 100_0000,
[INFO] [stderr]     |                        ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num1`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let num1: &i32;
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num2`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let num2: &'a i32;
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num3`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let num3: &'a mut i32;
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_num3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |     let s: &'static str = "test 'static";
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/iterator_closure/closure_study.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |     let s = example_closures(String::from("closures."));
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let mut s1 = String::from("hello");
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:55:17
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let mut s4 = s3;
[INFO] [stderr]    |                 ----^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let mut str = String::from("move_function_study hello");
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ownership/ownership.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let mut int1 = 188;
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str_ref`
[INFO] [stderr]    --> src/ownership/ownership.rs:121:19
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stderr]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_str_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `string_literal`
[INFO] [stderr]    --> src/ownership/ownership.rs:223:13
[INFO] [stderr]     |
[INFO] [stderr] 223 |         let string_literal = "hello string literal";
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_string_literal`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ownership/ownership.rs:233:13
[INFO] [stderr]     |
[INFO] [stderr] 233 |         let mut source_str = String::from("slice hello");
[INFO] [stderr]     |             ----^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `color`
[INFO] [stderr]   --> src/struct_related/define_init_struct.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |     let color = Color(32, 34, 43);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point`
[INFO] [stderr]   --> src/struct_related/define_init_struct.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let point = Point(23, -23);
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_point`
[INFO] [stderr] 
[INFO] [stderr] warning: field `decimal` is never read
[INFO] [stderr]   --> src/common_collection/hash_map_study.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct CoinProerty {
[INFO] [stderr]    |        ----------- field in this struct
[INFO] [stderr] 11 |     decimal: u32,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `CoinProerty` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `V6` is never constructed
[INFO] [stderr]  --> src/enum_pattern_match/enum_pattern_match.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 3 |     enum IpAddrType {
[INFO] [stderr]   |          ---------- variant in this enum
[INFO] [stderr] 4 |         V4,
[INFO] [stderr] 5 |         V6,
[INFO] [stderr]   |         ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `IpAddrType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `ip_addr_type` and `address` are never read
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 9  |     struct IpAddr {
[INFO] [stderr]    |            ------ fields in this struct
[INFO] [stderr] 10 |         ip_addr_type: IpAddrType,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 11 |         address: String,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variant `V6` is never constructed
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     enum IpAddrEnum {
[INFO] [stderr]    |          ---------- variant in this enum
[INFO] [stderr] 16 |         V4(String),
[INFO] [stderr] 17 |         V6(String),
[INFO] [stderr]    |         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `IpAddrEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, `Write`, and `ChangeColor` are never constructed
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     enum Message {
[INFO] [stderr]    |          ------- variants in this enum
[INFO] [stderr] 22 |         Quit,                          // 没有数据关联
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 23 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 24 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 25 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Quit`, `Move`, and `ChangeColor` are never constructed
[INFO] [stderr]   --> src/enum_pattern_match/enum_pattern_match.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     enum Msg {
[INFO] [stderr]    |          --- variants in this enum
[INFO] [stderr] 47 |         Quit,                          // 没有数据关联
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 48 |         Move { x: i32, y: i32 },       // 像struct做的，有命名的字段
[INFO] [stderr]    |         ^^^^
[INFO] [stderr] 49 |         Write(String),                 // 包括一个单个的字符串
[INFO] [stderr] 50 |         ChangeColor(i32, i64, String), // 包括几个类型的数据
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Msg` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `ETH` and `USDT` are never constructed
[INFO] [stderr]    --> src/enum_pattern_match/enum_pattern_match.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 108 |     enum Coin {
[INFO] [stderr]     |          ---- variants in this enum
[INFO] [stderr] 109 |         BTC(String),
[INFO] [stderr] 110 |         ETH(String),
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 111 |         USDT(String),
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Coin` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `call_panic_self` is never used
[INFO] [stderr]  --> src/error_handle/panic_unrecoverable.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn call_panic_self() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `cause_lib_panic` is never used
[INFO] [stderr]  --> src/error_handle/panic_unrecoverable.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn cause_lib_panic() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Score` is never constructed
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | struct Score<'a> {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_score` is never used
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 38 | impl<'a> Score<'a> {
[INFO] [stderr]    | ------------------ method in this implementation
[INFO] [stderr] 39 |     // [规则3]：因为参数之一是 &self ，所以返回类型获取 &self 的生命周期
[INFO] [stderr] 40 |     fn get_score(&self) -> &i32 {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `first_world` is never used
[INFO] [stderr]   --> src/generic_traits_lifetime/lifetime_study.rs:46:4
[INFO] [stderr]    |
[INFO] [stderr] 46 | fn first_world(str: &str) -> &str {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Pair` is never constructed
[INFO] [stderr]  --> src/generic_traits_lifetime/traits_study.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Pair<T> {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/generic_traits_lifetime/traits_study.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl<T> Pair<T> {
[INFO] [stderr]   | --------------- associated function in this implementation
[INFO] [stderr] 8 |     fn new(x: T, y: T) -> Self {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cmp_display` is never used
[INFO] [stderr]   --> src/generic_traits_lifetime/traits_study.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stderr]    | ------------------------------------- method in this implementation
[INFO] [stderr] 13 |     fn cmp_display(&self) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `example_closures_study` is never used
[INFO] [stderr]   --> src/iterator_closure/closure_study.rs:64:4
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn example_closures_study() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `height` is never read
[INFO] [stderr]    --> src/iterator_closure/closure_study.rs:116:5
[INFO] [stderr]     |
[INFO] [stderr] 114 | struct Rectangle {
[INFO] [stderr]     |        --------- field in this struct
[INFO] [stderr] 115 |     width: u32,
[INFO] [stderr] 116 |     height: u32,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `shoe_in_size` is never used
[INFO] [stderr]   --> src/iterator_closure/iterator_process_study.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn shoe_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `modify_str` is never used
[INFO] [stderr]    --> src/ownership/ownership.rs:121:8
[INFO] [stderr]     |
[INFO] [stderr] 121 |     fn modify_str(str_ref: &String) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `user_id`, `age`, and `active` are never read
[INFO] [stderr]  --> src/struct_related/define_init_struct.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct User {
[INFO] [stderr]   |        ---- fields in this struct
[INFO] [stderr] 3 |     user_id: String,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 4 |     user_name: String,
[INFO] [stderr] 5 |     age: u8,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 6 |     active: bool,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variable `coinMap` should have a snake case name
[INFO] [stderr]   --> src/common_collection/hash_map_study.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut coinMap: HashMap<CoinEnum, CoinProerty> = HashMap::new();
[INFO] [stderr]    |             ^^^^^^^ help: convert the identifier to snake case: `coin_map`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `study-rust-example` (lib) generated 48 warnings (run `cargo fix --lib -p study-rust-example` to apply 25 suggestions)
[INFO] [stderr] warning: `study-rust-example` (lib test) generated 47 warnings (47 duplicates)
[INFO] [stderr] warning: function `guess_game` is never used
[INFO] [stderr]  --> src/main.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn guess_game() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `socket`
[INFO] [stderr]   --> src/bin/socket_server.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 |         Ok((socket, addr)) => println!("Got a client: {addr:?}"),
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `study-rust-example` (bin "study-rust-example" test) generated 1 warning
[INFO] [stderr] warning: `study-rust-example` (bin "socket_server" test) generated 1 warning (run `cargo fix --bin "socket_server" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/study_rust_example-c5d027b3963ecb4e)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test generic_traits_lifetime::test_study::result_generic_test ... ok
[INFO] [stdout] test generic_traits_lifetime::test_study::not_equal_test ... ok
[INFO] [stdout] test generic_traits_lifetime::test_study::longer_str_with_announcement_test ... ok
[INFO] [stdout] test iterator_closure::iterator_process_study::tests::test_iterator_demo ... ok
[INFO] [stdout] test iterator_closure::iterator_process_study::tests::test_shoe_in_size ... ok
[INFO] [stdout] test generic_traits_lifetime::test_study::assert_test ... FAILED
[INFO] [stdout] test generic_traits_lifetime::test_study::should_panic_test - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- generic_traits_lifetime::test_study::assert_test stdout ----
[INFO] [stdout] thread 'generic_traits_lifetime::test_study::assert_test' panicked at src/generic_traits_lifetime/test_study.rs:22:5:
[INFO] [stdout] test method did not contain name, value was hello Tracking
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x555b17273a46 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x555b17273a46 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x555b17273a46 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x555b17273a46 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x555b1729c890 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x555b1729c890 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x555b172714af - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x555b17273824 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x555b17273824 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x555b17275597 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x555b1727527d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x555b17245407 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h616ac37fa3cd6c8f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x555b17245407 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x555b17275bb6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcb3fe3b9bb537ba8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x555b17275bb6 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x555b17275902 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x555b17273f46 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x555b17275660 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x555b17202cd5 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x555b1720b8c2 - study_rust_example::generic_traits_lifetime::test_study::assert_test::ha7e2d229ba2a7bee
[INFO] [stdout]                                at /opt/rustwide/workdir/src/generic_traits_lifetime/test_study.rs:22:5
[INFO] [stdout]   20:     0x555b1720b697 - study_rust_example::generic_traits_lifetime::test_study::assert_test::{{closure}}::h17b53699b26b1709
[INFO] [stdout]                                at /opt/rustwide/workdir/src/generic_traits_lifetime/test_study.rs:18:17
[INFO] [stdout]   21:     0x555b17208956 - core::ops::function::FnOnce::call_once::h0dea2248aca9fc2f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x555b1724acdf - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x555b1724acdf - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   24:     0x555b17249a61 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   25:     0x555b17249a61 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   26:     0x555b17249a61 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   27:     0x555b17249a61 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   28:     0x555b17249a61 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   29:     0x555b17249a61 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   30:     0x555b17249a61 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   31:     0x555b17210d96 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   32:     0x555b17210d96 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   33:     0x555b17215df7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   34:     0x555b17215df7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   35:     0x555b17215df7 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   36:     0x555b17215df7 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   37:     0x555b17215df7 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   38:     0x555b17215df7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   39:     0x555b17215df7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x555b1727a665 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d7c8f150ab9c84c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   41:     0x555b1727a665 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h570d5b005c242c15
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   42:     0x555b1727a665 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   43:     0x7f344fcabac3 - <unknown>
[INFO] [stdout]   44:     0x7f344fd3cbf4 - __clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     generic_traits_lifetime::test_study::assert_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 6 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "fb8ae6aedcfe1d728f5fabcf030e53a7eca301d7fd14d02e8dac40bb8006e0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8ae6aedcfe1d728f5fabcf030e53a7eca301d7fd14d02e8dac40bb8006e0e3", kill_on_drop: false }`
[INFO] [stdout] fb8ae6aedcfe1d728f5fabcf030e53a7eca301d7fd14d02e8dac40bb8006e0e3
