[INFO] cloning repository https://github.com/kachofugetsu09/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kachofugetsu09/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkachofugetsu09%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkachofugetsu09%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4d572799c0afdf1f0ccca6bf25cc3cc6e7f8acf
[INFO] testing kachofugetsu09/rust-learning against 1.98.0-beta.8+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkachofugetsu09%2Frust-learning" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kachofugetsu09/rust-learning
[INFO] finished tweaking git repo https://github.com/kachofugetsu09/rust-learning
[INFO] tweaked toml for git repo https://github.com/kachofugetsu09/rust-learning written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kachofugetsu09/rust-learning on toolchain 1.98.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kachofugetsu09/rust-learning 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" "+1.98.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.16
[INFO] [stderr]   Downloaded cfg-if v1.0.1
[INFO] [stderr]   Downloaded rand_core v0.6.4
[INFO] [stderr]   Downloaded rand_chacha v0.3.1
[INFO] [stderr]   Downloaded rand v0.8.5
[INFO] [stderr]   Downloaded quote v1.0.40
[INFO] [stderr]   Downloaded unicode-ident v1.0.18
[INFO] [stderr]   Downloaded proc-macro2 v1.0.95
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.26
[INFO] [stderr]   Downloaded zerocopy v0.8.26
[INFO] [stderr]   Downloaded syn v2.0.104
[INFO] [stderr]   Downloaded libc v0.2.174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939
[INFO] running `Command { std: "docker" "start" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `ipAddrKind` should have an upper camel case name
[INFO] [stdout]  --> src/enum_test.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum ipAddrKind{
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `IpAddrKind`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v4` should have an upper camel case name
[INFO] [stdout]  --> src/enum_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     v4,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v6` should have an upper camel case name
[INFO] [stdout]  --> src/enum_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     v6,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]   --> src/trait_test.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout]  1 | use std::fmt::format;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | mod trait_test;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap` and `hash_map`
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]    |                        ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Map`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::iter::Map;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::hash`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::ptr::hash;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]   --> src/lifetime.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let s1 = String::from("hello"); // s1 在这里创建
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/lifetime.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let s2 = String::from("world!"); // s2 在这里创建
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lifetime.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let s: &'static str = "I have a static lifetime.";
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prefix`
[INFO] [stdout]   --> src/lifetime.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |     if let Some(prefix) = found{
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prefix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_game` is never used
[INFO] [stdout]  --> src/guessing_game.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn play_game(){
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable_test` is never used
[INFO] [stdout]  --> src/variable_test.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn variable_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basic_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn basic_test(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable_covertest` is never used
[INFO] [stdout]   --> src/variable_test.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn variable_covertest(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuple_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn tuple_test(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `array_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn array_test(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `index_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn index_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_test` is never used
[INFO] [stdout]  --> src/function_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn function_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `another_function` is never used
[INFO] [stdout]  --> src/function_test.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn another_function(x:i32,unit_label:char){
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `statement_expression_test` is never used
[INFO] [stdout]   --> src/function_test.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn statement_expression_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `control_flow_test` is never used
[INFO] [stdout]  --> src/control_flow_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn control_flow_test() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `if_else` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn if_else(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `else_if_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn else_if_test(){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `condition_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn condition_test(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn loop_test (){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_from_loop` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn return_from_loop(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `while_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn while_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `for_array` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn for_array(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_for` is never used
[INFO] [stdout]    --> src/control_flow_test.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn simple_for(){
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ownership_test` is never used
[INFO] [stdout]  --> src/ownership_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn ownership_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `owner_move_test` is never used
[INFO] [stdout]  --> src/ownership_test.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn owner_move_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clone_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn clone_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stack_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn stack_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_takes_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn test_takes_ownership(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn takes_ownership(some_string: String){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `makes_copy` is never used
[INFO] [stdout]   --> src/ownership_test.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn makes_copy(some_integer: i32){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_giving_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn test_giving_ownership(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gives_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn gives_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_and_gives_back` is never used
[INFO] [stdout]   --> src/ownership_test.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reference_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn reference_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/ownership_test.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn calculate_length(s: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrowing_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn borrowing_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change` is never used
[INFO] [stdout]   --> src/ownership_test.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn change(some_string: &mut String){
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `only_one_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn only_one_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]    --> src/ownership_test.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn first_word(s : &String) -> usize{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ToDoItem` is never constructed
[INFO] [stdout]  --> src/ToDoItem.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct ToDoItem{
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/ToDoItem.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) fn main() {
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show_todos` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn show_todos(todoList: &Vec<ToDoItem>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `complete_todo` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn complete_todo(p0: &mut Vec<ToDoItem>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_todo` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn add_todo(todos: &mut Vec<ToDoItem> ){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_and_return_new_list` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn process_and_return_new_list(mut original_todos:Vec<ToDoItem>) -> Vec<ToDoItem>{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `output` is never used
[INFO] [stdout]    --> src/ToDoItem.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub(crate) fn output(){
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ToDoListManager` is never constructed
[INFO] [stdout]    --> src/ToDoItem.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct ToDoListManager {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_task`, and `show_tasks` are never used
[INFO] [stdout]    --> src/ToDoItem.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | impl ToDoListManager{
[INFO] [stdout]     | -------------------- associated items in this implementation
[INFO] [stdout] 119 |     fn new(inital_tasks: Vec<ToDoItem>) -> Self{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn add_task(&mut self, todoItem: ToDoItem){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     fn show_tasks(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/iterator_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/structure_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct User{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/structure_test.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) fn main() {
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_user` is never used
[INFO] [stdout]   --> src/structure_test.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn build_user(email:String, username:String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/structure_test.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area` and `can_hold` are never used
[INFO] [stdout]   --> src/structure_test.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl Rectangle{
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 55 |     fn area(&self) -> u32{
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ipAddrKind` is never used
[INFO] [stdout]  --> src/enum_test.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum ipAddrKind{
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/enum_test.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `if_let_test` is never used
[INFO] [stdout]   --> src/enum_test.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn if_let_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_match` is never used
[INFO] [stdout]   --> src/enum_test.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn do_match(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/collection_test.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vector_test` is never used
[INFO] [stdout]  --> src/collection_test.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn vector_test(){
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_map_test` is never used
[INFO] [stdout]   --> src/collection_test.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn hash_map_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/trait_test.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `largest` is never used
[INFO] [stdout]  --> src/trait_test.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn largest<T:PartialOrd+Copy>(list: &[T]) -> T {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_largest` is never used
[INFO] [stdout]   --> src/trait_test.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn test_largest() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Summary` is never used
[INFO] [stdout]   --> src/trait_test.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Summary{
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NewArticle` is never constructed
[INFO] [stdout]   --> src/trait_test.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct NewArticle {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_summarizable` is never used
[INFO] [stdout]   --> src/trait_test.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn return_summarizable() -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/trait_test.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Pair<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/trait_test.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl<T> Pair<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 73 |     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/trait_test.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 83 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `logest` is never used
[INFO] [stdout]   --> src/lifetime.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn logest <'a>(x: &'a str, y:&'a str) -> &'a str{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/lifetime.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn test() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lon_test` is never used
[INFO] [stdout]   --> src/lifetime.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn lon_test(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImportantExcerpt` is never constructed
[INFO] [stdout]   --> src/lifetime.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct ImportantExcerpt<'a>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `importantExcerpt_test` is never used
[INFO] [stdout]   --> src/lifetime.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn importantExcerpt_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_greeting` is never used
[INFO] [stdout]   --> src/lifetime.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn print_greeting(name: &str) { // name 是一个引用
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greeting_test` is never used
[INFO] [stdout]   --> src/lifetime.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn greeting_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_prefix_in_text` is never used
[INFO] [stdout]   --> src/lifetime.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn find_prefix_in_text<'a,'b> (prefix: &'a str, text: &'b str) -> Option<&'a str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_prefix` is never used
[INFO] [stdout]   --> src/lifetime.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn test_prefix(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ToDoItem` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | mod ToDoItem;
[INFO] [stdout]   |     ^^^^^^^^ help: convert the identifier to snake case: `to_do_item`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `todoList` should have a snake case name
[INFO] [stdout]   --> src/ToDoItem.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn show_todos(todoList: &Vec<ToDoItem>) {
[INFO] [stdout]    |               ^^^^^^^^ help: convert the identifier to snake case: `todo_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `todoItem` should have a snake case name
[INFO] [stdout]    --> src/ToDoItem.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn add_task(&mut self, todoItem: ToDoItem){
[INFO] [stdout]     |                            ^^^^^^^^ help: convert the identifier to snake case: `todo_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `importantExcerpt_test` should have a snake case name
[INFO] [stdout]   --> src/lifetime.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn importantExcerpt_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `important_excerpt_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `ipAddrKind` should have an upper camel case name
[INFO] [stdout]  --> src/enum_test.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum ipAddrKind{
[INFO] [stdout]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `IpAddrKind`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v4` should have an upper camel case name
[INFO] [stdout]  --> src/enum_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     v4,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `v6` should have an upper camel case name
[INFO] [stdout]  --> src/enum_test.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     v6,
[INFO] [stdout]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> src/trait_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap` and `hash_map`
[INFO] [stdout]   --> src/main.rs:14:24
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::collections::{hash_map, HashMap};
[INFO] [stdout]    |                        ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Map`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::iter::Map;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr::hash`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::ptr::hash;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]   --> src/lifetime.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let s1 = String::from("hello"); // s1 在这里创建
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/lifetime.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let s2 = String::from("world!"); // s2 在这里创建
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lifetime.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let s: &'static str = "I have a static lifetime.";
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prefix`
[INFO] [stdout]   --> src/lifetime.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |     if let Some(prefix) = found{
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prefix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_game` is never used
[INFO] [stdout]  --> src/guessing_game.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn play_game(){
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable_test` is never used
[INFO] [stdout]  --> src/variable_test.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn variable_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basic_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn basic_test(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `variable_covertest` is never used
[INFO] [stdout]   --> src/variable_test.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn variable_covertest(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tuple_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn tuple_test(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `array_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn array_test(){
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `index_test` is never used
[INFO] [stdout]   --> src/variable_test.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn index_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `function_test` is never used
[INFO] [stdout]  --> src/function_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn function_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `another_function` is never used
[INFO] [stdout]  --> src/function_test.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn another_function(x:i32,unit_label:char){
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `statement_expression_test` is never used
[INFO] [stdout]   --> src/function_test.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn statement_expression_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `control_flow_test` is never used
[INFO] [stdout]  --> src/control_flow_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn control_flow_test() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `if_else` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn if_else(){
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `else_if_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn else_if_test(){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `condition_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn condition_test(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn loop_test (){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_from_loop` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn return_from_loop(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `while_test` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn while_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `for_array` is never used
[INFO] [stdout]   --> src/control_flow_test.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn for_array(){
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_for` is never used
[INFO] [stdout]    --> src/control_flow_test.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn simple_for(){
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ownership_test` is never used
[INFO] [stdout]  --> src/ownership_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn ownership_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `owner_move_test` is never used
[INFO] [stdout]  --> src/ownership_test.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn owner_move_test(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clone_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn clone_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stack_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn stack_test(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_takes_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn test_takes_ownership(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn takes_ownership(some_string: String){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `makes_copy` is never used
[INFO] [stdout]   --> src/ownership_test.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn makes_copy(some_integer: i32){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_giving_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:49:4
[INFO] [stdout]    |
[INFO] [stdout] 49 | fn test_giving_ownership(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gives_ownership` is never used
[INFO] [stdout]   --> src/ownership_test.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn gives_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takes_and_gives_back` is never used
[INFO] [stdout]   --> src/ownership_test.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `reference_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn reference_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_length` is never used
[INFO] [stdout]   --> src/ownership_test.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn calculate_length(s: &String) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrowing_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn borrowing_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `change` is never used
[INFO] [stdout]   --> src/ownership_test.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn change(some_string: &mut String){
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `only_one_test` is never used
[INFO] [stdout]   --> src/ownership_test.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn only_one_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]    --> src/ownership_test.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn first_word(s : &String) -> usize{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ToDoItem` is never constructed
[INFO] [stdout]  --> src/ToDoItem.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct ToDoItem{
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/ToDoItem.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) fn main() {
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `show_todos` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn show_todos(todoList: &Vec<ToDoItem>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `complete_todo` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn complete_todo(p0: &mut Vec<ToDoItem>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_todo` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn add_todo(todos: &mut Vec<ToDoItem> ){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `process_and_return_new_list` is never used
[INFO] [stdout]   --> src/ToDoItem.rs:80:4
[INFO] [stdout]    |
[INFO] [stdout] 80 | fn process_and_return_new_list(mut original_todos:Vec<ToDoItem>) -> Vec<ToDoItem>{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `output` is never used
[INFO] [stdout]    --> src/ToDoItem.rs:101:15
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub(crate) fn output(){
[INFO] [stdout]     |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ToDoListManager` is never constructed
[INFO] [stdout]    --> src/ToDoItem.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct ToDoListManager {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_task`, and `show_tasks` are never used
[INFO] [stdout]    --> src/ToDoItem.rs:119:8
[INFO] [stdout]     |
[INFO] [stdout] 118 | impl ToDoListManager{
[INFO] [stdout]     | -------------------- associated items in this implementation
[INFO] [stdout] 119 |     fn new(inital_tasks: Vec<ToDoItem>) -> Self{
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     fn add_task(&mut self, todoItem: ToDoItem){
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     fn show_tasks(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/iterator_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]  --> src/structure_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct User{
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/structure_test.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) fn main() {
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_user` is never used
[INFO] [stdout]   --> src/structure_test.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn build_user(email:String, username:String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/structure_test.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `area` and `can_hold` are never used
[INFO] [stdout]   --> src/structure_test.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl Rectangle{
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 55 |     fn area(&self) -> u32{
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ipAddrKind` is never used
[INFO] [stdout]  --> src/enum_test.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum ipAddrKind{
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/enum_test.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `if_let_test` is never used
[INFO] [stdout]   --> src/enum_test.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn if_let_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_match` is never used
[INFO] [stdout]   --> src/enum_test.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn do_match(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/collection_test.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `vector_test` is never used
[INFO] [stdout]  --> src/collection_test.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn vector_test(){
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_map_test` is never used
[INFO] [stdout]   --> src/collection_test.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn hash_map_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/trait_test.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn main(){
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `largest` is never used
[INFO] [stdout]  --> src/trait_test.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn largest<T:PartialOrd+Copy>(list: &[T]) -> T {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_largest` is never used
[INFO] [stdout]   --> src/trait_test.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn test_largest() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Summary` is never used
[INFO] [stdout]   --> src/trait_test.rs:35:11
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub trait Summary{
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NewArticle` is never constructed
[INFO] [stdout]   --> src/trait_test.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct NewArticle {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_summarizable` is never used
[INFO] [stdout]   --> src/trait_test.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn return_summarizable() -> impl Summary {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Pair` is never constructed
[INFO] [stdout]   --> src/trait_test.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Pair<T> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/trait_test.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | impl<T> Pair<T> {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 73 |     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/trait_test.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stdout]    | ------------------------------------- method in this implementation
[INFO] [stdout] 83 |     fn cmp_display(&self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `logest` is never used
[INFO] [stdout]   --> src/lifetime.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn logest <'a>(x: &'a str, y:&'a str) -> &'a str{
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/lifetime.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn test() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lon_test` is never used
[INFO] [stdout]   --> src/lifetime.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn lon_test(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImportantExcerpt` is never constructed
[INFO] [stdout]   --> src/lifetime.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct ImportantExcerpt<'a>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `importantExcerpt_test` is never used
[INFO] [stdout]   --> src/lifetime.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn importantExcerpt_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_greeting` is never used
[INFO] [stdout]   --> src/lifetime.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn print_greeting(name: &str) { // name 是一个引用
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greeting_test` is never used
[INFO] [stdout]   --> src/lifetime.rs:69:4
[INFO] [stdout]    |
[INFO] [stdout] 69 | fn greeting_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_prefix_in_text` is never used
[INFO] [stdout]   --> src/lifetime.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn find_prefix_in_text<'a,'b> (prefix: &'a str, text: &'b str) -> Option<&'a str> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_prefix` is never used
[INFO] [stdout]   --> src/lifetime.rs:83:4
[INFO] [stdout]    |
[INFO] [stdout] 83 | fn test_prefix(){
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `ToDoItem` should have a snake case name
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | mod ToDoItem;
[INFO] [stdout]   |     ^^^^^^^^ help: convert the identifier to snake case: `to_do_item`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `todoList` should have a snake case name
[INFO] [stdout]   --> src/ToDoItem.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn show_todos(todoList: &Vec<ToDoItem>) {
[INFO] [stdout]    |               ^^^^^^^^ help: convert the identifier to snake case: `todo_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `todoItem` should have a snake case name
[INFO] [stdout]    --> src/ToDoItem.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn add_task(&mut self, todoItem: ToDoItem){
[INFO] [stdout]     |                            ^^^^^^^^ help: convert the identifier to snake case: `todo_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `importantExcerpt_test` should have a snake case name
[INFO] [stdout]   --> src/lifetime.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn importantExcerpt_test(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `important_excerpt_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: type `ipAddrKind` should have an upper camel case name
[INFO] [stderr]  --> src/enum_test.rs:1:6
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum ipAddrKind{
[INFO] [stderr]   |      ^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `IpAddrKind`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `v4` should have an upper camel case name
[INFO] [stderr]  --> src/enum_test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     v4,
[INFO] [stderr]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V4`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `v6` should have an upper camel case name
[INFO] [stderr]  --> src/enum_test.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     v6,
[INFO] [stderr]   |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `V6`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::format`
[INFO] [stderr]  --> src/trait_test.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::format;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `HashMap` and `hash_map`
[INFO] [stderr]   --> src/main.rs:14:24
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::collections::{hash_map, HashMap};
[INFO] [stderr]    |                        ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::Map`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::iter::Map;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ptr::hash`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::ptr::hash;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s1`
[INFO] [stderr]   --> src/lifetime.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let s1 = String::from("hello"); // s1 在这里创建
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]   --> src/lifetime.rs:28:13
[INFO] [stderr]    |
[INFO] [stderr] 28 |         let s2 = String::from("world!"); // s2 在这里创建
[INFO] [stderr]    |             ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/lifetime.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let s: &'static str = "I have a static lifetime.";
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prefix`
[INFO] [stderr]   --> src/lifetime.rs:89:17
[INFO] [stderr]    |
[INFO] [stderr] 89 |     if let Some(prefix) = found{
[INFO] [stderr]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_prefix`
[INFO] [stderr] 
[INFO] [stderr] warning: function `play_game` is never used
[INFO] [stderr]  --> src/guessing_game.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn play_game(){
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `variable_test` is never used
[INFO] [stderr]  --> src/variable_test.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn variable_test(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `basic_test` is never used
[INFO] [stderr]   --> src/variable_test.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub fn basic_test(){
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `variable_covertest` is never used
[INFO] [stderr]   --> src/variable_test.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn variable_covertest(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `tuple_test` is never used
[INFO] [stderr]   --> src/variable_test.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn tuple_test(){
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `array_test` is never used
[INFO] [stderr]   --> src/variable_test.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn array_test(){
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `index_test` is never used
[INFO] [stderr]   --> src/variable_test.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn index_test(){
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `function_test` is never used
[INFO] [stderr]  --> src/function_test.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn function_test(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `another_function` is never used
[INFO] [stderr]  --> src/function_test.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn another_function(x:i32,unit_label:char){
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `statement_expression_test` is never used
[INFO] [stderr]   --> src/function_test.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn statement_expression_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `control_flow_test` is never used
[INFO] [stderr]  --> src/control_flow_test.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn control_flow_test() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `if_else` is never used
[INFO] [stderr]   --> src/control_flow_test.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn if_else(){
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `else_if_test` is never used
[INFO] [stderr]   --> src/control_flow_test.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn else_if_test(){
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `condition_test` is never used
[INFO] [stderr]   --> src/control_flow_test.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn condition_test(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `loop_test` is never used
[INFO] [stderr]   --> src/control_flow_test.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn loop_test (){
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `return_from_loop` is never used
[INFO] [stderr]   --> src/control_flow_test.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn return_from_loop(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `while_test` is never used
[INFO] [stderr]   --> src/control_flow_test.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn while_test(){
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `for_array` is never used
[INFO] [stderr]   --> src/control_flow_test.rs:87:4
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn for_array(){
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `simple_for` is never used
[INFO] [stderr]    --> src/control_flow_test.rs:104:4
[INFO] [stderr]     |
[INFO] [stderr] 104 | fn simple_for(){
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `ownership_test` is never used
[INFO] [stderr]  --> src/ownership_test.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn ownership_test(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `owner_move_test` is never used
[INFO] [stderr]  --> src/ownership_test.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn owner_move_test(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `clone_test` is never used
[INFO] [stderr]   --> src/ownership_test.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn clone_test(){
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `stack_test` is never used
[INFO] [stderr]   --> src/ownership_test.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 | fn stack_test(){
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_takes_ownership` is never used
[INFO] [stderr]   --> src/ownership_test.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn test_takes_ownership(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `takes_ownership` is never used
[INFO] [stderr]   --> src/ownership_test.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn takes_ownership(some_string: String){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `makes_copy` is never used
[INFO] [stderr]   --> src/ownership_test.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn makes_copy(some_integer: i32){
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_giving_ownership` is never used
[INFO] [stderr]   --> src/ownership_test.rs:49:4
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn test_giving_ownership(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gives_ownership` is never used
[INFO] [stderr]   --> src/ownership_test.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn gives_ownership() -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `takes_and_gives_back` is never used
[INFO] [stderr]   --> src/ownership_test.rs:60:4
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn takes_and_gives_back(a_string: String) -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `reference_test` is never used
[INFO] [stderr]   --> src/ownership_test.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn reference_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_length` is never used
[INFO] [stderr]   --> src/ownership_test.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn calculate_length(s: &String) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `borrowing_test` is never used
[INFO] [stderr]   --> src/ownership_test.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn borrowing_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `change` is never used
[INFO] [stderr]   --> src/ownership_test.rs:86:4
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn change(some_string: &mut String){
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `only_one_test` is never used
[INFO] [stderr]   --> src/ownership_test.rs:91:4
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn only_one_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `first_word` is never used
[INFO] [stderr]    --> src/ownership_test.rs:101:4
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn first_word(s : &String) -> usize{
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ToDoItem` is never constructed
[INFO] [stderr]  --> src/ToDoItem.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct ToDoItem{
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/ToDoItem.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub(crate) fn main() {
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `show_todos` is never used
[INFO] [stderr]   --> src/ToDoItem.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn show_todos(todoList: &Vec<ToDoItem>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `complete_todo` is never used
[INFO] [stderr]   --> src/ToDoItem.rs:47:4
[INFO] [stderr]    |
[INFO] [stderr] 47 | fn complete_todo(p0: &mut Vec<ToDoItem>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `add_todo` is never used
[INFO] [stderr]   --> src/ToDoItem.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn add_todo(todos: &mut Vec<ToDoItem> ){
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `process_and_return_new_list` is never used
[INFO] [stderr]   --> src/ToDoItem.rs:80:4
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn process_and_return_new_list(mut original_todos:Vec<ToDoItem>) -> Vec<ToDoItem>{
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `output` is never used
[INFO] [stderr]    --> src/ToDoItem.rs:101:15
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub(crate) fn output(){
[INFO] [stderr]     |               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ToDoListManager` is never constructed
[INFO] [stderr]    --> src/ToDoItem.rs:114:8
[INFO] [stderr]     |
[INFO] [stderr] 114 | struct ToDoListManager {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `add_task`, and `show_tasks` are never used
[INFO] [stderr]    --> src/ToDoItem.rs:119:8
[INFO] [stderr]     |
[INFO] [stderr] 118 | impl ToDoListManager{
[INFO] [stderr]     | -------------------- associated items in this implementation
[INFO] [stderr] 119 |     fn new(inital_tasks: Vec<ToDoItem>) -> Self{
[INFO] [stderr]     |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 126 |     fn add_task(&mut self, todoItem: ToDoItem){
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 131 |     fn show_tasks(&self) {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/iterator_test.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn main(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `User` is never constructed
[INFO] [stderr]  --> src/structure_test.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct User{
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/structure_test.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub(crate) fn main() {
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `build_user` is never used
[INFO] [stderr]   --> src/structure_test.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn build_user(email:String, username:String) -> User {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stderr]   --> src/structure_test.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | struct Rectangle {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `area` and `can_hold` are never used
[INFO] [stderr]   --> src/structure_test.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 54 | impl Rectangle{
[INFO] [stderr]    | -------------- methods in this implementation
[INFO] [stderr] 55 |     fn area(&self) -> u32{
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 59 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ipAddrKind` is never used
[INFO] [stderr]  --> src/enum_test.rs:1:6
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum ipAddrKind{
[INFO] [stderr]   |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/enum_test.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn main(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `if_let_test` is never used
[INFO] [stderr]   --> src/enum_test.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn if_let_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `do_match` is never used
[INFO] [stderr]   --> src/enum_test.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn do_match(){
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/collection_test.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn main(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `vector_test` is never used
[INFO] [stderr]  --> src/collection_test.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn vector_test(){
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `hash_map_test` is never used
[INFO] [stderr]   --> src/collection_test.rs:52:4
[INFO] [stderr]    |
[INFO] [stderr] 52 | fn hash_map_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/trait_test.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn main(){
[INFO] [stderr]   |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `largest` is never used
[INFO] [stderr]  --> src/trait_test.rs:8:4
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn largest<T:PartialOrd+Copy>(list: &[T]) -> T {
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_largest` is never used
[INFO] [stderr]   --> src/trait_test.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn test_largest() {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Summary` is never used
[INFO] [stderr]   --> src/trait_test.rs:35:11
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub trait Summary{
[INFO] [stderr]    |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `NewArticle` is never constructed
[INFO] [stderr]   --> src/trait_test.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub struct NewArticle {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `return_summarizable` is never used
[INFO] [stderr]   --> src/trait_test.rs:58:4
[INFO] [stderr]    |
[INFO] [stderr] 58 | fn return_summarizable() -> impl Summary {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Pair` is never constructed
[INFO] [stderr]   --> src/trait_test.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | struct Pair<T> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/trait_test.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | impl<T> Pair<T> {
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] 73 |     fn new(x: T, y: T) -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cmp_display` is never used
[INFO] [stderr]   --> src/trait_test.rs:83:8
[INFO] [stderr]    |
[INFO] [stderr] 82 | impl<T: Display + PartialOrd> Pair<T> {
[INFO] [stderr]    | ------------------------------------- method in this implementation
[INFO] [stderr] 83 |     fn cmp_display(&self) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `logest` is never used
[INFO] [stderr]   --> src/lifetime.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn logest <'a>(x: &'a str, y:&'a str) -> &'a str{
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test` is never used
[INFO] [stderr]   --> src/lifetime.rs:24:4
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn test() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `lon_test` is never used
[INFO] [stderr]   --> src/lifetime.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn lon_test(){
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ImportantExcerpt` is never constructed
[INFO] [stderr]   --> src/lifetime.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | struct ImportantExcerpt<'a>{
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `importantExcerpt_test` is never used
[INFO] [stderr]   --> src/lifetime.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn importantExcerpt_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_greeting` is never used
[INFO] [stderr]   --> src/lifetime.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn print_greeting(name: &str) { // name 是一个引用
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `greeting_test` is never used
[INFO] [stderr]   --> src/lifetime.rs:69:4
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn greeting_test() {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_prefix_in_text` is never used
[INFO] [stderr]   --> src/lifetime.rs:75:4
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn find_prefix_in_text<'a,'b> (prefix: &'a str, text: &'b str) -> Option<&'a str> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_prefix` is never used
[INFO] [stderr]   --> src/lifetime.rs:83:4
[INFO] [stderr]    |
[INFO] [stderr] 83 | fn test_prefix(){
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `ToDoItem` should have a snake case name
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | mod ToDoItem;
[INFO] [stderr]   |     ^^^^^^^^ help: convert the identifier to snake case: `to_do_item`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `todoList` should have a snake case name
[INFO] [stderr]   --> src/ToDoItem.rs:35:15
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn show_todos(todoList: &Vec<ToDoItem>) {
[INFO] [stderr]    |               ^^^^^^^^ help: convert the identifier to snake case: `todo_list`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `todoItem` should have a snake case name
[INFO] [stderr]    --> src/ToDoItem.rs:126:28
[INFO] [stderr]     |
[INFO] [stderr] 126 |     fn add_task(&mut self, todoItem: ToDoItem){
[INFO] [stderr]     |                            ^^^^^^^^ help: convert the identifier to snake case: `todo_item`
[INFO] [stderr] 
[INFO] [stderr] warning: function `importantExcerpt_test` should have a snake case name
[INFO] [stderr]   --> src/lifetime.rs:53:4
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn importantExcerpt_test(){
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `important_excerpt_test`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-learning` (bin "rust-learning" test) generated 90 warnings (run `cargo fix --bin "rust-learning" -p rust-learning --tests` to apply 8 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/rust_learning-f14ee487f0373b4b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939", kill_on_drop: false }`
[INFO] [stdout] aa08e60337c1379b25d1359de97347a232c18fc1dbf4d6c32e2120f6f9323939
