[INFO] cloning repository https://github.com/CyberGA/HelloWorld
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CyberGA/HelloWorld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberGA%2FHelloWorld", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberGA%2FHelloWorld'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a2534a460f6115c511bb8ee637822a7d0e68f41
[INFO] testing CyberGA/HelloWorld against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberGA%2FHelloWorld" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CyberGA/HelloWorld 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 git repo https://github.com/CyberGA/HelloWorld
[INFO] finished tweaking git repo https://github.com/CyberGA/HelloWorld
[INFO] tweaked toml for git repo https://github.com/CyberGA/HelloWorld written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/CyberGA/HelloWorld 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 }`
[INFO] [stdout] a942da41fa1192d54a4fbd7c8adc16105e3bf42385fb3e4dead9db674a5ddef0
[INFO] running `Command { std: "docker" "start" "-a" "a942da41fa1192d54a4fbd7c8adc16105e3bf42385fb3e4dead9db674a5ddef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a942da41fa1192d54a4fbd7c8adc16105e3bf42385fb3e4dead9db674a5ddef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a942da41fa1192d54a4fbd7c8adc16105e3bf42385fb3e4dead9db674a5ddef0", kill_on_drop: false }`
[INFO] [stdout] a942da41fa1192d54a4fbd7c8adc16105e3bf42385fb3e4dead9db674a5ddef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52136712872cb63ca10aefa519306960202c04cecd5445d84a792a2274f2aaf5
[INFO] running `Command { std: "docker" "start" "-a" "52136712872cb63ca10aefa519306960202c04cecd5445d84a792a2274f2aaf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling HelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File`, `HashMap`, `OpenOptions`, `Read`, `any`
[INFO] [stdout]  --> src/printer.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, any, fs::{File, OpenOptions}, fmt::Display, io::{Write, Read}, i32};
[INFO] [stdout]   |                         ^^^^^^^            ^^^       ^^^^  ^^^^^^^^^^^                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_state`
[INFO] [stdout]   --> src/printer.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 |   let msg_state: Message = Message::Move { x: 2, y: 4 };
[INFO] [stdout]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:115:7
[INFO] [stdout]     |
[INFO] [stdout] 115 |   let mut name = "Testing.......";
[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: unused variable: `student_age`
[INFO] [stdout]    --> src/printer.rs:268:7
[INFO] [stdout]     |
[INFO] [stdout] 268 |   let student_age: Ages = Ages(12, 16, 18);
[INFO] [stdout]     |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student_age`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:473:7
[INFO] [stdout]     |
[INFO] [stdout] 473 |   let mut a = [10, 20, 30];
[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/printer.rs:475:7
[INFO] [stdout]     |
[INFO] [stdout] 475 |   let mut iter = a.iter();
[INFO] [stdout]     |       ----^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LENGTH` is never used
[INFO] [stdout]  --> src/printer.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const LENGTH: u32 = 20;
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printer_fn` is never used
[INFO] [stdout]  --> src/printer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn printer_fn() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `machine_type` is never used
[INFO] [stdout]   --> src/printer.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn machine_type() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `looping` is never used
[INFO] [stdout]   --> src/printer.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn looping() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_while` is never used
[INFO] [stdout]   --> src/printer.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn loop_while() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_for` is never used
[INFO] [stdout]   --> src/printer.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn loop_for() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Days` is never used
[INFO] [stdout]   --> src/printer.rs:71:6
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum Days {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usin_enum` is never used
[INFO] [stdout]   --> src/printer.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn usin_enum() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_constants` is never used
[INFO] [stdout]   --> src/printer.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn using_constants() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_tuple` is never used
[INFO] [stdout]    --> src/printer.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn using_tuple() { // can store value of different data type
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_str` is never used
[INFO] [stdout]    --> src/printer.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn print_str() {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_array` is never used
[INFO] [stdout]    --> src/printer.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub fn using_array() { // can only store value of the same data time
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_arr` is never used
[INFO] [stdout]    --> src/printer.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub fn print_arr(arr: &mut[i32;4]) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_borrowing` is never used
[INFO] [stdout]    --> src/printer.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |  pub fn using_borrowing() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_slice` is never used
[INFO] [stdout]    --> src/printer.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn using_slice() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_struct` is never used
[INFO] [stdout]    --> src/printer.rs:231:8
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub fn using_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first_name`, `last_name`, `tel`, and `years` are never read
[INFO] [stdout]    --> src/printer.rs:234:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |   struct Person {
[INFO] [stdout]     |          ------ fields in this struct
[INFO] [stdout] 234 |     first_name:String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 235 |     last_name:String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 236 |     tel:String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 237 |     years:i32
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `method_in_struct` is never used
[INFO] [stdout]    --> src/printer.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn method_in_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]    --> src/printer.rs:279:10
[INFO] [stdout]     |
[INFO] [stdout] 278 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- method in this implementation
[INFO] [stdout] 279 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_struct_method` is never used
[INFO] [stdout]    --> src/printer.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn static_struct_method() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `areaInstance` and `area` are never used
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 291 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- associated items in this implementation
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `option_enum` is never used
[INFO] [stdout]    --> src/printer.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 | pub fn option_enum() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_vector` is never used
[INFO] [stdout]    --> src/printer.rs:329:8
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn using_vector() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_hashmap` is never used
[INFO] [stdout]    --> src/printer.rs:345:8
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub fn using_hashmap() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_on_errors` is never used
[INFO] [stdout]    --> src/printer.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 | pub fn working_on_errors() -> Result<bool, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_generics` is never used
[INFO] [stdout]    --> src/printer.rs:385:8
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub fn using_generics() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_traits` is never used
[INFO] [stdout]    --> src/printer.rs:400:8
[INFO] [stdout]     |
[INFO] [stdout] 400 | pub fn using_traits() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_write` is never used
[INFO] [stdout]    --> src/printer.rs:429:8
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn read_write() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_file` is never used
[INFO] [stdout]    --> src/printer.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn working_with_file() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_iterators` is never used
[INFO] [stdout]    --> src/printer.rs:472:8
[INFO] [stdout]     |
[INFO] [stdout] 472 | pub fn working_with_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_closure` is never used
[INFO] [stdout]    --> src/printer.rs:491:8
[INFO] [stdout]     |
[INFO] [stdout] 491 | pub fn using_closure() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_smart_pointers` is never used
[INFO] [stdout]    --> src/printer.rs:499:8
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub fn using_smart_pointers() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `HelloWorld` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `areaInstance` should have a snake case name
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^ help: convert the identifier to snake case: `area_instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "52136712872cb63ca10aefa519306960202c04cecd5445d84a792a2274f2aaf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52136712872cb63ca10aefa519306960202c04cecd5445d84a792a2274f2aaf5", kill_on_drop: false }`
[INFO] [stdout] 52136712872cb63ca10aefa519306960202c04cecd5445d84a792a2274f2aaf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 11080a65f9bc4a68f86e88b5f5448c655e6fe0e6ec93b700e21cd277a05c9130
[INFO] running `Command { std: "docker" "start" "-a" "11080a65f9bc4a68f86e88b5f5448c655e6fe0e6ec93b700e21cd277a05c9130", kill_on_drop: false }`
[INFO] [stderr]    Compiling HelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File`, `HashMap`, `OpenOptions`, `Read`, `any`
[INFO] [stdout]  --> src/printer.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, any, fs::{File, OpenOptions}, fmt::Display, io::{Write, Read}, i32};
[INFO] [stdout]   |                         ^^^^^^^            ^^^       ^^^^  ^^^^^^^^^^^                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_state`
[INFO] [stdout]   --> src/printer.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 |   let msg_state: Message = Message::Move { x: 2, y: 4 };
[INFO] [stdout]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:115:7
[INFO] [stdout]     |
[INFO] [stdout] 115 |   let mut name = "Testing.......";
[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: unused variable: `student_age`
[INFO] [stdout]    --> src/printer.rs:268:7
[INFO] [stdout]     |
[INFO] [stdout] 268 |   let student_age: Ages = Ages(12, 16, 18);
[INFO] [stdout]     |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student_age`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:473:7
[INFO] [stdout]     |
[INFO] [stdout] 473 |   let mut a = [10, 20, 30];
[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/printer.rs:475:7
[INFO] [stdout]     |
[INFO] [stdout] 475 |   let mut iter = a.iter();
[INFO] [stdout]     |       ----^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LENGTH` is never used
[INFO] [stdout]  --> src/printer.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const LENGTH: u32 = 20;
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printer_fn` is never used
[INFO] [stdout]  --> src/printer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn printer_fn() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `machine_type` is never used
[INFO] [stdout]   --> src/printer.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn machine_type() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `looping` is never used
[INFO] [stdout]   --> src/printer.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn looping() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_while` is never used
[INFO] [stdout]   --> src/printer.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn loop_while() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_for` is never used
[INFO] [stdout]   --> src/printer.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn loop_for() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Days` is never used
[INFO] [stdout]   --> src/printer.rs:71:6
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum Days {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usin_enum` is never used
[INFO] [stdout]   --> src/printer.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn usin_enum() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_constants` is never used
[INFO] [stdout]   --> src/printer.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn using_constants() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_tuple` is never used
[INFO] [stdout]    --> src/printer.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn using_tuple() { // can store value of different data type
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_str` is never used
[INFO] [stdout]    --> src/printer.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn print_str() {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_array` is never used
[INFO] [stdout]    --> src/printer.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub fn using_array() { // can only store value of the same data time
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_arr` is never used
[INFO] [stdout]    --> src/printer.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub fn print_arr(arr: &mut[i32;4]) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_borrowing` is never used
[INFO] [stdout]    --> src/printer.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |  pub fn using_borrowing() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_slice` is never used
[INFO] [stdout]    --> src/printer.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn using_slice() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_struct` is never used
[INFO] [stdout]    --> src/printer.rs:231:8
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub fn using_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first_name`, `last_name`, `tel`, and `years` are never read
[INFO] [stdout]    --> src/printer.rs:234:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |   struct Person {
[INFO] [stdout]     |          ------ fields in this struct
[INFO] [stdout] 234 |     first_name:String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 235 |     last_name:String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 236 |     tel:String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 237 |     years:i32
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `method_in_struct` is never used
[INFO] [stdout]    --> src/printer.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn method_in_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]    --> src/printer.rs:279:10
[INFO] [stdout]     |
[INFO] [stdout] 278 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- method in this implementation
[INFO] [stdout] 279 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_struct_method` is never used
[INFO] [stdout]    --> src/printer.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn static_struct_method() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `areaInstance` and `area` are never used
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 291 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- associated items in this implementation
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `option_enum` is never used
[INFO] [stdout]    --> src/printer.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 | pub fn option_enum() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_vector` is never used
[INFO] [stdout]    --> src/printer.rs:329:8
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn using_vector() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_hashmap` is never used
[INFO] [stdout]    --> src/printer.rs:345:8
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub fn using_hashmap() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_on_errors` is never used
[INFO] [stdout]    --> src/printer.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 | pub fn working_on_errors() -> Result<bool, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_generics` is never used
[INFO] [stdout]    --> src/printer.rs:385:8
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub fn using_generics() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_traits` is never used
[INFO] [stdout]    --> src/printer.rs:400:8
[INFO] [stdout]     |
[INFO] [stdout] 400 | pub fn using_traits() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_write` is never used
[INFO] [stdout]    --> src/printer.rs:429:8
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn read_write() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_file` is never used
[INFO] [stdout]    --> src/printer.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn working_with_file() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_iterators` is never used
[INFO] [stdout]    --> src/printer.rs:472:8
[INFO] [stdout]     |
[INFO] [stdout] 472 | pub fn working_with_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_closure` is never used
[INFO] [stdout]    --> src/printer.rs:491:8
[INFO] [stdout]     |
[INFO] [stdout] 491 | pub fn using_closure() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_smart_pointers` is never used
[INFO] [stdout]    --> src/printer.rs:499:8
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub fn using_smart_pointers() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `HelloWorld` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `areaInstance` should have a snake case name
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^ help: convert the identifier to snake case: `area_instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "11080a65f9bc4a68f86e88b5f5448c655e6fe0e6ec93b700e21cd277a05c9130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11080a65f9bc4a68f86e88b5f5448c655e6fe0e6ec93b700e21cd277a05c9130", kill_on_drop: false }`
[INFO] [stdout] 11080a65f9bc4a68f86e88b5f5448c655e6fe0e6ec93b700e21cd277a05c9130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b2655ad2f3da23c9711215d7679692dd283782c654bb7610c43e9f7c476b93fe
[INFO] running `Command { std: "docker" "start" "-a" "b2655ad2f3da23c9711215d7679692dd283782c654bb7610c43e9f7c476b93fe", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `File`, `HashMap`, `OpenOptions`, `Read`, `any`
[INFO] [stderr]  --> src/printer.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{collections::{HashMap, HashSet}, any, fs::{File, OpenOptions}, fmt::Display, io::{Write, Read}, i32};
[INFO] [stderr]   |                         ^^^^^^^            ^^^       ^^^^  ^^^^^^^^^^^                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg_state`
[INFO] [stderr]   --> src/printer.rs:95:7
[INFO] [stderr]    |
[INFO] [stderr] 95 |   let msg_state: Message = Message::Move { x: 2, y: 4 };
[INFO] [stderr]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_state`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/printer.rs:115:7
[INFO] [stderr]     |
[INFO] [stderr] 115 |   let mut name = "Testing.......";
[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: unused variable: `student_age`
[INFO] [stderr]    --> src/printer.rs:268:7
[INFO] [stderr]     |
[INFO] [stderr] 268 |   let student_age: Ages = Ages(12, 16, 18);
[INFO] [stderr]     |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student_age`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/printer.rs:473:7
[INFO] [stderr]     |
[INFO] [stderr] 473 |   let mut a = [10, 20, 30];
[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/printer.rs:475:7
[INFO] [stderr]     |
[INFO] [stderr] 475 |   let mut iter = a.iter();
[INFO] [stderr]     |       ----^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `LENGTH` is never used
[INFO] [stderr]  --> src/printer.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | const LENGTH: u32 = 20;
[INFO] [stderr]   |       ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `printer_fn` is never used
[INFO] [stderr]  --> src/printer.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn printer_fn() {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `machine_type` is never used
[INFO] [stderr]   --> src/printer.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn machine_type() {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `looping` is never used
[INFO] [stderr]   --> src/printer.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn looping() {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `loop_while` is never used
[INFO] [stderr]   --> src/printer.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn loop_while() {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `loop_for` is never used
[INFO] [stderr]   --> src/printer.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn loop_for() {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Days` is never used
[INFO] [stderr]   --> src/printer.rs:71:6
[INFO] [stderr]    |
[INFO] [stderr] 71 | enum Days {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `usin_enum` is never used
[INFO] [stderr]   --> src/printer.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn usin_enum() {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_constants` is never used
[INFO] [stderr]   --> src/printer.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn using_constants() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_tuple` is never used
[INFO] [stderr]    --> src/printer.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn using_tuple() { // can store value of different data type
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_str` is never used
[INFO] [stderr]    --> src/printer.rs:114:8
[INFO] [stderr]     |
[INFO] [stderr] 114 | pub fn print_str() {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_array` is never used
[INFO] [stderr]    --> src/printer.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | pub fn using_array() { // can only store value of the same data time
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_arr` is never used
[INFO] [stderr]    --> src/printer.rs:158:8
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub fn print_arr(arr: &mut[i32;4]) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_borrowing` is never used
[INFO] [stderr]    --> src/printer.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 |  pub fn using_borrowing() {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_slice` is never used
[INFO] [stderr]    --> src/printer.rs:212:8
[INFO] [stderr]     |
[INFO] [stderr] 212 | pub fn using_slice() {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_struct` is never used
[INFO] [stderr]    --> src/printer.rs:231:8
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub fn using_struct() {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `first_name`, `last_name`, `tel`, and `years` are never read
[INFO] [stderr]    --> src/printer.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 233 |   struct Person {
[INFO] [stderr]     |          ------ fields in this struct
[INFO] [stderr] 234 |     first_name:String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 235 |     last_name:String,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 236 |     tel:String,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 237 |     years:i32
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `method_in_struct` is never used
[INFO] [stderr]    --> src/printer.rs:274:8
[INFO] [stderr]     |
[INFO] [stderr] 274 | pub fn method_in_struct() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `area` is never used
[INFO] [stderr]    --> src/printer.rs:279:10
[INFO] [stderr]     |
[INFO] [stderr] 278 |   impl  Rectangle {
[INFO] [stderr]     |   --------------- method in this implementation
[INFO] [stderr] 279 |       fn area(&self) {
[INFO] [stderr]     |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `static_struct_method` is never used
[INFO] [stderr]    --> src/printer.rs:287:8
[INFO] [stderr]     |
[INFO] [stderr] 287 | pub fn static_struct_method() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `areaInstance` and `area` are never used
[INFO] [stderr]    --> src/printer.rs:292:10
[INFO] [stderr]     |
[INFO] [stderr] 291 |   impl  Rectangle {
[INFO] [stderr]     |   --------------- associated items in this implementation
[INFO] [stderr] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stderr]     |          ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 295 |       fn area(&self) {
[INFO] [stderr]     |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `option_enum` is never used
[INFO] [stderr]    --> src/printer.rs:303:8
[INFO] [stderr]     |
[INFO] [stderr] 303 | pub fn option_enum() {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_vector` is never used
[INFO] [stderr]    --> src/printer.rs:329:8
[INFO] [stderr]     |
[INFO] [stderr] 329 | pub fn using_vector() {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_hashmap` is never used
[INFO] [stderr]    --> src/printer.rs:345:8
[INFO] [stderr]     |
[INFO] [stderr] 345 | pub fn using_hashmap() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `working_on_errors` is never used
[INFO] [stderr]    --> src/printer.rs:377:8
[INFO] [stderr]     |
[INFO] [stderr] 377 | pub fn working_on_errors() -> Result<bool, String> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_generics` is never used
[INFO] [stderr]    --> src/printer.rs:385:8
[INFO] [stderr]     |
[INFO] [stderr] 385 | pub fn using_generics() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_traits` is never used
[INFO] [stderr]    --> src/printer.rs:400:8
[INFO] [stderr]     |
[INFO] [stderr] 400 | pub fn using_traits() {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_write` is never used
[INFO] [stderr]    --> src/printer.rs:429:8
[INFO] [stderr]     |
[INFO] [stderr] 429 | pub fn read_write() {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `working_with_file` is never used
[INFO] [stderr]    --> src/printer.rs:450:8
[INFO] [stderr]     |
[INFO] [stderr] 450 | pub fn working_with_file() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `working_with_iterators` is never used
[INFO] [stderr]    --> src/printer.rs:472:8
[INFO] [stderr]     |
[INFO] [stderr] 472 | pub fn working_with_iterators() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_closure` is never used
[INFO] [stderr]    --> src/printer.rs:491:8
[INFO] [stderr]     |
[INFO] [stderr] 491 | pub fn using_closure() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_smart_pointers` is never used
[INFO] [stderr]    --> src/printer.rs:499:8
[INFO] [stderr]     |
[INFO] [stderr] 499 | pub fn using_smart_pointers() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `HelloWorld` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `areaInstance` should have a snake case name
[INFO] [stderr]    --> src/printer.rs:292:10
[INFO] [stderr]     |
[INFO] [stderr] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stderr]     |          ^^^^^^^^^^^^ help: convert the identifier to snake case: `area_instance`
[INFO] [stderr] 
[INFO] [stderr] warning: `HelloWorld` (bin "HelloWorld" test) generated 40 warnings (run `cargo fix --bin "HelloWorld" --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/HelloWorld-3c5b3664601e43fe)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test should_fail ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- should_fail stdout ----
[INFO] [stdout] thread 'should_fail' panicked at src/main.rs:13:5:
[INFO] [stdout] not implemented
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55c97e65acec - 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:     0x55c97e65acec - 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:     0x55c97e65acec - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55c97e65acec - <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:     0x55c97e684830 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55c97e684830 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55c97e65869f - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x55c97e65aad4 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55c97e65aad4 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55c97e65c797 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x55c97e65c483 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55c97e62ce97 - <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:     0x55c97e62ce97 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x55c97e65cda8 - <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:     0x55c97e65cda8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x55c97e65cac9 - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:649:13
[INFO] [stdout]   16:     0x55c97e65b1b6 - 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:     0x55c97e65c862 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x55c97e5f7ce5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55c97e5f7d83 - core::panicking::panic::h195fc2a96298d4c3
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:127:5
[INFO] [stdout]   20:     0x55c97e5f94cd - HelloWorld::should_fail::h1a66dfad4828b1c0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:13:5
[INFO] [stdout]   21:     0x55c97e5f9497 - HelloWorld::should_fail::{{closure}}::ha8d3a7379d621480
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:12:17
[INFO] [stdout]   22:     0x55c97e5f8796 - core::ops::function::FnOnce::call_once::h8c00560d63adc9c2
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x55c97e6324ef - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x55c97e6324ef - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   25:     0x55c97e631505 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   26:     0x55c97e631505 - <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]   27:     0x55c97e631505 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   28:     0x55c97e631505 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   29:     0x55c97e631505 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   30:     0x55c97e631505 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   31:     0x55c97e631505 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   32:     0x55c97e5f97c6 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   33:     0x55c97e5f97c6 - 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]   34:     0x55c97e5fe877 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   35:     0x55c97e5fe877 - <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]   36:     0x55c97e5fe877 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   37:     0x55c97e5fe877 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   38:     0x55c97e5fe877 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   39:     0x55c97e5fe877 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   40:     0x55c97e5fe877 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x55c97e661835 - <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]   42:     0x55c97e661835 - <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]   43:     0x55c97e661835 - 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]   44:     0x7fdab36acac3 - <unknown>
[INFO] [stdout]   45:     0x7fdab373dbf4 - __clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     should_fail
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin HelloWorld`
[INFO] running `Command { std: "docker" "inspect" "b2655ad2f3da23c9711215d7679692dd283782c654bb7610c43e9f7c476b93fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2655ad2f3da23c9711215d7679692dd283782c654bb7610c43e9f7c476b93fe", kill_on_drop: false }`
[INFO] [stdout] b2655ad2f3da23c9711215d7679692dd283782c654bb7610c43e9f7c476b93fe
[INFO] testing CyberGA/HelloWorld against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberGA%2FHelloWorld" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CyberGA/HelloWorld 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 git repo https://github.com/CyberGA/HelloWorld
[INFO] finished tweaking git repo https://github.com/CyberGA/HelloWorld
[INFO] tweaked toml for git repo https://github.com/CyberGA/HelloWorld written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/CyberGA/HelloWorld 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 614f7f83da0ee085a0ee9679e24db0849c965b62d9a35a8d5682a67d2d1ef039
[INFO] running `Command { std: "docker" "start" "-a" "614f7f83da0ee085a0ee9679e24db0849c965b62d9a35a8d5682a67d2d1ef039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "614f7f83da0ee085a0ee9679e24db0849c965b62d9a35a8d5682a67d2d1ef039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "614f7f83da0ee085a0ee9679e24db0849c965b62d9a35a8d5682a67d2d1ef039", kill_on_drop: false }`
[INFO] [stdout] 614f7f83da0ee085a0ee9679e24db0849c965b62d9a35a8d5682a67d2d1ef039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] cf60b28f2331777d800059430da73c94d45369a2acd8a25925197d97a5a8e313
[INFO] running `Command { std: "docker" "start" "-a" "cf60b28f2331777d800059430da73c94d45369a2acd8a25925197d97a5a8e313", kill_on_drop: false }`
[INFO] [stderr]    Compiling HelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File`, `HashMap`, `OpenOptions`, `Read`, `any`
[INFO] [stdout]  --> src/printer.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, any, fs::{File, OpenOptions}, fmt::Display, io::{Write, Read}, i32};
[INFO] [stdout]   |                         ^^^^^^^            ^^^       ^^^^  ^^^^^^^^^^^                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_state`
[INFO] [stdout]   --> src/printer.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 |   let msg_state: Message = Message::Move { x: 2, y: 4 };
[INFO] [stdout]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:115:7
[INFO] [stdout]     |
[INFO] [stdout] 115 |   let mut name = "Testing.......";
[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: unused variable: `student_age`
[INFO] [stdout]    --> src/printer.rs:268:7
[INFO] [stdout]     |
[INFO] [stdout] 268 |   let student_age: Ages = Ages(12, 16, 18);
[INFO] [stdout]     |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student_age`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:473:7
[INFO] [stdout]     |
[INFO] [stdout] 473 |   let mut a = [10, 20, 30];
[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/printer.rs:475:7
[INFO] [stdout]     |
[INFO] [stdout] 475 |   let mut iter = a.iter();
[INFO] [stdout]     |       ----^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LENGTH` is never used
[INFO] [stdout]  --> src/printer.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const LENGTH: u32 = 20;
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printer_fn` is never used
[INFO] [stdout]  --> src/printer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn printer_fn() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `machine_type` is never used
[INFO] [stdout]   --> src/printer.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn machine_type() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `looping` is never used
[INFO] [stdout]   --> src/printer.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn looping() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_while` is never used
[INFO] [stdout]   --> src/printer.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn loop_while() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_for` is never used
[INFO] [stdout]   --> src/printer.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn loop_for() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Days` is never used
[INFO] [stdout]   --> src/printer.rs:71:6
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum Days {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usin_enum` is never used
[INFO] [stdout]   --> src/printer.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn usin_enum() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_constants` is never used
[INFO] [stdout]   --> src/printer.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn using_constants() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_tuple` is never used
[INFO] [stdout]    --> src/printer.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn using_tuple() { // can store value of different data type
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_str` is never used
[INFO] [stdout]    --> src/printer.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn print_str() {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_array` is never used
[INFO] [stdout]    --> src/printer.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub fn using_array() { // can only store value of the same data time
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_arr` is never used
[INFO] [stdout]    --> src/printer.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub fn print_arr(arr: &mut[i32;4]) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_borrowing` is never used
[INFO] [stdout]    --> src/printer.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |  pub fn using_borrowing() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_slice` is never used
[INFO] [stdout]    --> src/printer.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn using_slice() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_struct` is never used
[INFO] [stdout]    --> src/printer.rs:231:8
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub fn using_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first_name`, `last_name`, `tel`, and `years` are never read
[INFO] [stdout]    --> src/printer.rs:234:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |   struct Person {
[INFO] [stdout]     |          ------ fields in this struct
[INFO] [stdout] 234 |     first_name:String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 235 |     last_name:String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 236 |     tel:String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 237 |     years:i32
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `method_in_struct` is never used
[INFO] [stdout]    --> src/printer.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn method_in_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]    --> src/printer.rs:279:10
[INFO] [stdout]     |
[INFO] [stdout] 278 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- method in this implementation
[INFO] [stdout] 279 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_struct_method` is never used
[INFO] [stdout]    --> src/printer.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn static_struct_method() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `areaInstance` and `area` are never used
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 291 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- associated items in this implementation
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `option_enum` is never used
[INFO] [stdout]    --> src/printer.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 | pub fn option_enum() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_vector` is never used
[INFO] [stdout]    --> src/printer.rs:329:8
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn using_vector() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_hashmap` is never used
[INFO] [stdout]    --> src/printer.rs:345:8
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub fn using_hashmap() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_on_errors` is never used
[INFO] [stdout]    --> src/printer.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 | pub fn working_on_errors() -> Result<bool, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_generics` is never used
[INFO] [stdout]    --> src/printer.rs:385:8
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub fn using_generics() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_traits` is never used
[INFO] [stdout]    --> src/printer.rs:400:8
[INFO] [stdout]     |
[INFO] [stdout] 400 | pub fn using_traits() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_write` is never used
[INFO] [stdout]    --> src/printer.rs:429:8
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn read_write() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_file` is never used
[INFO] [stdout]    --> src/printer.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn working_with_file() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_iterators` is never used
[INFO] [stdout]    --> src/printer.rs:472:8
[INFO] [stdout]     |
[INFO] [stdout] 472 | pub fn working_with_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_closure` is never used
[INFO] [stdout]    --> src/printer.rs:491:8
[INFO] [stdout]     |
[INFO] [stdout] 491 | pub fn using_closure() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_smart_pointers` is never used
[INFO] [stdout]    --> src/printer.rs:499:8
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub fn using_smart_pointers() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `HelloWorld` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `areaInstance` should have a snake case name
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^ help: convert the identifier to snake case: `area_instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "cf60b28f2331777d800059430da73c94d45369a2acd8a25925197d97a5a8e313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf60b28f2331777d800059430da73c94d45369a2acd8a25925197d97a5a8e313", kill_on_drop: false }`
[INFO] [stdout] cf60b28f2331777d800059430da73c94d45369a2acd8a25925197d97a5a8e313
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1fd66dc098bc7f2f5120fb73edff21f5d4924ede68cbaeebe0adf7daa8ab1e3b
[INFO] running `Command { std: "docker" "start" "-a" "1fd66dc098bc7f2f5120fb73edff21f5d4924ede68cbaeebe0adf7daa8ab1e3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling HelloWorld v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `File`, `HashMap`, `OpenOptions`, `Read`, `any`
[INFO] [stdout]  --> src/printer.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::{HashMap, HashSet}, any, fs::{File, OpenOptions}, fmt::Display, io::{Write, Read}, i32};
[INFO] [stdout]   |                         ^^^^^^^            ^^^       ^^^^  ^^^^^^^^^^^                             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_state`
[INFO] [stdout]   --> src/printer.rs:95:7
[INFO] [stdout]    |
[INFO] [stdout] 95 |   let msg_state: Message = Message::Move { x: 2, y: 4 };
[INFO] [stdout]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:115:7
[INFO] [stdout]     |
[INFO] [stdout] 115 |   let mut name = "Testing.......";
[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: unused variable: `student_age`
[INFO] [stdout]    --> src/printer.rs:268:7
[INFO] [stdout]     |
[INFO] [stdout] 268 |   let student_age: Ages = Ages(12, 16, 18);
[INFO] [stdout]     |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student_age`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/printer.rs:473:7
[INFO] [stdout]     |
[INFO] [stdout] 473 |   let mut a = [10, 20, 30];
[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/printer.rs:475:7
[INFO] [stdout]     |
[INFO] [stdout] 475 |   let mut iter = a.iter();
[INFO] [stdout]     |       ----^^^^
[INFO] [stdout]     |       |
[INFO] [stdout]     |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LENGTH` is never used
[INFO] [stdout]  --> src/printer.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const LENGTH: u32 = 20;
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `printer_fn` is never used
[INFO] [stdout]  --> src/printer.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn printer_fn() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `machine_type` is never used
[INFO] [stdout]   --> src/printer.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn machine_type() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `looping` is never used
[INFO] [stdout]   --> src/printer.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn looping() {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_while` is never used
[INFO] [stdout]   --> src/printer.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn loop_while() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `loop_for` is never used
[INFO] [stdout]   --> src/printer.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn loop_for() {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Days` is never used
[INFO] [stdout]   --> src/printer.rs:71:6
[INFO] [stdout]    |
[INFO] [stdout] 71 | enum Days {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usin_enum` is never used
[INFO] [stdout]   --> src/printer.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn usin_enum() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_constants` is never used
[INFO] [stdout]   --> src/printer.rs:98:8
[INFO] [stdout]    |
[INFO] [stdout] 98 | pub fn using_constants() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_tuple` is never used
[INFO] [stdout]    --> src/printer.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn using_tuple() { // can store value of different data type
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_str` is never used
[INFO] [stdout]    --> src/printer.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub fn print_str() {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_array` is never used
[INFO] [stdout]    --> src/printer.rs:126:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub fn using_array() { // can only store value of the same data time
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_arr` is never used
[INFO] [stdout]    --> src/printer.rs:158:8
[INFO] [stdout]     |
[INFO] [stdout] 158 | pub fn print_arr(arr: &mut[i32;4]) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_borrowing` is never used
[INFO] [stdout]    --> src/printer.rs:166:9
[INFO] [stdout]     |
[INFO] [stdout] 166 |  pub fn using_borrowing() {
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_slice` is never used
[INFO] [stdout]    --> src/printer.rs:212:8
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub fn using_slice() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_struct` is never used
[INFO] [stdout]    --> src/printer.rs:231:8
[INFO] [stdout]     |
[INFO] [stdout] 231 | pub fn using_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first_name`, `last_name`, `tel`, and `years` are never read
[INFO] [stdout]    --> src/printer.rs:234:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |   struct Person {
[INFO] [stdout]     |          ------ fields in this struct
[INFO] [stdout] 234 |     first_name:String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 235 |     last_name:String,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 236 |     tel:String,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 237 |     years:i32
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `method_in_struct` is never used
[INFO] [stdout]    --> src/printer.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn method_in_struct() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `area` is never used
[INFO] [stdout]    --> src/printer.rs:279:10
[INFO] [stdout]     |
[INFO] [stdout] 278 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- method in this implementation
[INFO] [stdout] 279 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `static_struct_method` is never used
[INFO] [stdout]    --> src/printer.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn static_struct_method() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `areaInstance` and `area` are never used
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 291 |   impl  Rectangle {
[INFO] [stdout]     |   --------------- associated items in this implementation
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |       fn area(&self) {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `option_enum` is never used
[INFO] [stdout]    --> src/printer.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 | pub fn option_enum() {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_vector` is never used
[INFO] [stdout]    --> src/printer.rs:329:8
[INFO] [stdout]     |
[INFO] [stdout] 329 | pub fn using_vector() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_hashmap` is never used
[INFO] [stdout]    --> src/printer.rs:345:8
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub fn using_hashmap() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_on_errors` is never used
[INFO] [stdout]    --> src/printer.rs:377:8
[INFO] [stdout]     |
[INFO] [stdout] 377 | pub fn working_on_errors() -> Result<bool, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_generics` is never used
[INFO] [stdout]    --> src/printer.rs:385:8
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub fn using_generics() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_traits` is never used
[INFO] [stdout]    --> src/printer.rs:400:8
[INFO] [stdout]     |
[INFO] [stdout] 400 | pub fn using_traits() {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_write` is never used
[INFO] [stdout]    --> src/printer.rs:429:8
[INFO] [stdout]     |
[INFO] [stdout] 429 | pub fn read_write() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_file` is never used
[INFO] [stdout]    --> src/printer.rs:450:8
[INFO] [stdout]     |
[INFO] [stdout] 450 | pub fn working_with_file() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `working_with_iterators` is never used
[INFO] [stdout]    --> src/printer.rs:472:8
[INFO] [stdout]     |
[INFO] [stdout] 472 | pub fn working_with_iterators() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_closure` is never used
[INFO] [stdout]    --> src/printer.rs:491:8
[INFO] [stdout]     |
[INFO] [stdout] 491 | pub fn using_closure() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `using_smart_pointers` is never used
[INFO] [stdout]    --> src/printer.rs:499:8
[INFO] [stdout]     |
[INFO] [stdout] 499 | pub fn using_smart_pointers() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `HelloWorld` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `areaInstance` should have a snake case name
[INFO] [stdout]    --> src/printer.rs:292:10
[INFO] [stdout]     |
[INFO] [stdout] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stdout]     |          ^^^^^^^^^^^^ help: convert the identifier to snake case: `area_instance`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "1fd66dc098bc7f2f5120fb73edff21f5d4924ede68cbaeebe0adf7daa8ab1e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd66dc098bc7f2f5120fb73edff21f5d4924ede68cbaeebe0adf7daa8ab1e3b", kill_on_drop: false }`
[INFO] [stdout] 1fd66dc098bc7f2f5120fb73edff21f5d4924ede68cbaeebe0adf7daa8ab1e3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 80fdd8964384d93a562c422a0bbbc0a75b0613bbe7bac31306a56abc27ba36a8
[INFO] running `Command { std: "docker" "start" "-a" "80fdd8964384d93a562c422a0bbbc0a75b0613bbe7bac31306a56abc27ba36a8", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `File`, `HashMap`, `OpenOptions`, `Read`, `any`
[INFO] [stderr]  --> src/printer.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::{collections::{HashMap, HashSet}, any, fs::{File, OpenOptions}, fmt::Display, io::{Write, Read}, i32};
[INFO] [stderr]   |                         ^^^^^^^            ^^^       ^^^^  ^^^^^^^^^^^                             ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg_state`
[INFO] [stderr]   --> src/printer.rs:95:7
[INFO] [stderr]    |
[INFO] [stderr] 95 |   let msg_state: Message = Message::Move { x: 2, y: 4 };
[INFO] [stderr]    |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_state`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/printer.rs:115:7
[INFO] [stderr]     |
[INFO] [stderr] 115 |   let mut name = "Testing.......";
[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: unused variable: `student_age`
[INFO] [stderr]    --> src/printer.rs:268:7
[INFO] [stderr]     |
[INFO] [stderr] 268 |   let student_age: Ages = Ages(12, 16, 18);
[INFO] [stderr]     |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_student_age`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/printer.rs:473:7
[INFO] [stderr]     |
[INFO] [stderr] 473 |   let mut a = [10, 20, 30];
[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/printer.rs:475:7
[INFO] [stderr]     |
[INFO] [stderr] 475 |   let mut iter = a.iter();
[INFO] [stderr]     |       ----^^^^
[INFO] [stderr]     |       |
[INFO] [stderr]     |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `LENGTH` is never used
[INFO] [stderr]  --> src/printer.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 | const LENGTH: u32 = 20;
[INFO] [stderr]   |       ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `printer_fn` is never used
[INFO] [stderr]  --> src/printer.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn printer_fn() {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `machine_type` is never used
[INFO] [stderr]   --> src/printer.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn machine_type() {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `looping` is never used
[INFO] [stderr]   --> src/printer.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn looping() {
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `loop_while` is never used
[INFO] [stderr]   --> src/printer.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn loop_while() {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `loop_for` is never used
[INFO] [stderr]   --> src/printer.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn loop_for() {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Days` is never used
[INFO] [stderr]   --> src/printer.rs:71:6
[INFO] [stderr]    |
[INFO] [stderr] 71 | enum Days {
[INFO] [stderr]    |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `usin_enum` is never used
[INFO] [stderr]   --> src/printer.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn usin_enum() {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_constants` is never used
[INFO] [stderr]   --> src/printer.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn using_constants() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_tuple` is never used
[INFO] [stderr]    --> src/printer.rs:104:8
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub fn using_tuple() { // can store value of different data type
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_str` is never used
[INFO] [stderr]    --> src/printer.rs:114:8
[INFO] [stderr]     |
[INFO] [stderr] 114 | pub fn print_str() {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_array` is never used
[INFO] [stderr]    --> src/printer.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | pub fn using_array() { // can only store value of the same data time
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_arr` is never used
[INFO] [stderr]    --> src/printer.rs:158:8
[INFO] [stderr]     |
[INFO] [stderr] 158 | pub fn print_arr(arr: &mut[i32;4]) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_borrowing` is never used
[INFO] [stderr]    --> src/printer.rs:166:9
[INFO] [stderr]     |
[INFO] [stderr] 166 |  pub fn using_borrowing() {
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_slice` is never used
[INFO] [stderr]    --> src/printer.rs:212:8
[INFO] [stderr]     |
[INFO] [stderr] 212 | pub fn using_slice() {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_struct` is never used
[INFO] [stderr]    --> src/printer.rs:231:8
[INFO] [stderr]     |
[INFO] [stderr] 231 | pub fn using_struct() {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `first_name`, `last_name`, `tel`, and `years` are never read
[INFO] [stderr]    --> src/printer.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 233 |   struct Person {
[INFO] [stderr]     |          ------ fields in this struct
[INFO] [stderr] 234 |     first_name:String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr] 235 |     last_name:String,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 236 |     tel:String,
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 237 |     years:i32
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `method_in_struct` is never used
[INFO] [stderr]    --> src/printer.rs:274:8
[INFO] [stderr]     |
[INFO] [stderr] 274 | pub fn method_in_struct() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `area` is never used
[INFO] [stderr]    --> src/printer.rs:279:10
[INFO] [stderr]     |
[INFO] [stderr] 278 |   impl  Rectangle {
[INFO] [stderr]     |   --------------- method in this implementation
[INFO] [stderr] 279 |       fn area(&self) {
[INFO] [stderr]     |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `static_struct_method` is never used
[INFO] [stderr]    --> src/printer.rs:287:8
[INFO] [stderr]     |
[INFO] [stderr] 287 | pub fn static_struct_method() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `areaInstance` and `area` are never used
[INFO] [stderr]    --> src/printer.rs:292:10
[INFO] [stderr]     |
[INFO] [stderr] 291 |   impl  Rectangle {
[INFO] [stderr]     |   --------------- associated items in this implementation
[INFO] [stderr] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stderr]     |          ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 295 |       fn area(&self) {
[INFO] [stderr]     |          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `option_enum` is never used
[INFO] [stderr]    --> src/printer.rs:303:8
[INFO] [stderr]     |
[INFO] [stderr] 303 | pub fn option_enum() {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_vector` is never used
[INFO] [stderr]    --> src/printer.rs:329:8
[INFO] [stderr]     |
[INFO] [stderr] 329 | pub fn using_vector() {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_hashmap` is never used
[INFO] [stderr]    --> src/printer.rs:345:8
[INFO] [stderr]     |
[INFO] [stderr] 345 | pub fn using_hashmap() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `working_on_errors` is never used
[INFO] [stderr]    --> src/printer.rs:377:8
[INFO] [stderr]     |
[INFO] [stderr] 377 | pub fn working_on_errors() -> Result<bool, String> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_generics` is never used
[INFO] [stderr]    --> src/printer.rs:385:8
[INFO] [stderr]     |
[INFO] [stderr] 385 | pub fn using_generics() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_traits` is never used
[INFO] [stderr]    --> src/printer.rs:400:8
[INFO] [stderr]     |
[INFO] [stderr] 400 | pub fn using_traits() {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_write` is never used
[INFO] [stderr]    --> src/printer.rs:429:8
[INFO] [stderr]     |
[INFO] [stderr] 429 | pub fn read_write() {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `working_with_file` is never used
[INFO] [stderr]    --> src/printer.rs:450:8
[INFO] [stderr]     |
[INFO] [stderr] 450 | pub fn working_with_file() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `working_with_iterators` is never used
[INFO] [stderr]    --> src/printer.rs:472:8
[INFO] [stderr]     |
[INFO] [stderr] 472 | pub fn working_with_iterators() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_closure` is never used
[INFO] [stderr]    --> src/printer.rs:491:8
[INFO] [stderr]     |
[INFO] [stderr] 491 | pub fn using_closure() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `using_smart_pointers` is never used
[INFO] [stderr]    --> src/printer.rs:499:8
[INFO] [stderr]     |
[INFO] [stderr] 499 | pub fn using_smart_pointers() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `HelloWorld` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = help: convert the identifier to snake case: `hello_world`
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `areaInstance` should have a snake case name
[INFO] [stderr]    --> src/printer.rs:292:10
[INFO] [stderr]     |
[INFO] [stderr] 292 |       fn areaInstance(w: u32, h: u32) -> Rectangle {
[INFO] [stderr]     |          ^^^^^^^^^^^^ help: convert the identifier to snake case: `area_instance`
[INFO] [stderr] 
[INFO] [stderr] warning: `HelloWorld` (bin "HelloWorld" test) generated 40 warnings (run `cargo fix --bin "HelloWorld" --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/HelloWorld-67744354bb0541c0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test should_fail ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- should_fail stdout ----
[INFO] [stdout] thread 'should_fail' panicked at src/main.rs:13:5:
[INFO] [stdout] not implemented
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x557ea78bf426 - 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:     0x557ea78bf426 - 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:     0x557ea78bf426 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x557ea78bf426 - <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:     0x557ea78e8270 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x557ea78e8270 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x557ea78bce8f - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x557ea78bf204 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x557ea78bf204 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x557ea78c0f77 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x557ea78c0c5d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x557ea7890e37 - <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:     0x557ea7890e37 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x557ea78c1596 - <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:     0x557ea78c1596 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x557ea78c12a9 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:649:13
[INFO] [stdout]   16:     0x557ea78bf926 - 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:     0x557ea78c1040 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x557ea785acc5 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x557ea785ad83 - core::panicking::panic::h5a1259c1164bd480
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:144:5
[INFO] [stdout]   20:     0x557ea785c4cd - HelloWorld::should_fail::h94d853f6e7f22235
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:13:5
[INFO] [stdout]   21:     0x557ea785c497 - HelloWorld::should_fail::{{closure}}::h4ceb8b7c79080a16
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:12:17
[INFO] [stdout]   22:     0x557ea785b706 - core::ops::function::FnOnce::call_once::h15129d20498d41c8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x557ea789670f - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x557ea789670f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   25:     0x557ea7895491 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   26:     0x557ea7895491 - <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]   27:     0x557ea7895491 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   28:     0x557ea7895491 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   29:     0x557ea7895491 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   30:     0x557ea7895491 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   31:     0x557ea7895491 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   32:     0x557ea785c7c6 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   33:     0x557ea785c7c6 - 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]   34:     0x557ea7861827 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   35:     0x557ea7861827 - <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]   36:     0x557ea7861827 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   37:     0x557ea7861827 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   38:     0x557ea7861827 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   39:     0x557ea7861827 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   40:     0x557ea7861827 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x557ea78c6045 - <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]   42:     0x557ea78c6045 - <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]   43:     0x557ea78c6045 - 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]   44:     0x7f34c4bcfac3 - <unknown>
[INFO] [stdout]   45:     0x7f34c4c60bf4 - __clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     should_fail
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin HelloWorld`
[INFO] running `Command { std: "docker" "inspect" "80fdd8964384d93a562c422a0bbbc0a75b0613bbe7bac31306a56abc27ba36a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80fdd8964384d93a562c422a0bbbc0a75b0613bbe7bac31306a56abc27ba36a8", kill_on_drop: false }`
[INFO] [stdout] 80fdd8964384d93a562c422a0bbbc0a75b0613bbe7bac31306a56abc27ba36a8
