[INFO] cloning repository https://github.com/messi18/rust-programming-
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/messi18/rust-programming-" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmessi18%2Frust-programming-", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmessi18%2Frust-programming-'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec972d023e787c308383fff35ad0bdbbc44cd738
[INFO] testing messi18/rust-programming- against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmessi18%2Frust-programming-" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/messi18/rust-programming- on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/messi18/rust-programming-
[INFO] finished tweaking git repo https://github.com/messi18/rust-programming-
[INFO] tweaked toml for git repo https://github.com/messi18/rust-programming- written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/messi18/rust-programming- 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-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21b9224a672ba101d2f24869b5e8dd105703a446abe4689269a561d1e2050060
[INFO] running `Command { std: "docker" "start" "-a" "21b9224a672ba101d2f24869b5e8dd105703a446abe4689269a561d1e2050060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21b9224a672ba101d2f24869b5e8dd105703a446abe4689269a561d1e2050060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b9224a672ba101d2f24869b5e8dd105703a446abe4689269a561d1e2050060", kill_on_drop: false }`
[INFO] [stdout] 21b9224a672ba101d2f24869b5e8dd105703a446abe4689269a561d1e2050060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 466fb61b9cd76402174a4b6276c02f82e9a5d9a8a52e47ef4203a614f0757cd4
[INFO] running `Command { std: "docker" "start" "-a" "466fb61b9cd76402174a4b6276c02f82e9a5d9a8a52e47ef4203a614f0757cd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_programming_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `use_string`, `use_vec`
[INFO] [stdout]  --> src/ch8.rs:2:22
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use crate::ch8::{use_string, use_vec};
[INFO] [stdout]   |                      ^^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ch13::calculation_intensity`
[INFO] [stdout]   --> src/ch13.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use crate::ch13::calculation_intensity;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ch16::use_thread`
[INFO] [stdout]   --> src/ch16.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use crate::ch16::use_thread;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/ch12.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let contents = run(config).unwrap_or_else(|e| {
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity`
[INFO] [stdout]   --> src/ch13.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn workout(intensity:i32) {
[INFO] [stdout]    |            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3_1` is never used
[INFO] [stdout]   --> src/ch4.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn run3_1() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3_2` is never used
[INFO] [stdout]   --> src/ch4.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn run3_2() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3_3` is never used
[INFO] [stdout]   --> src/ch4.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn run3_3() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run3_5` is never used
[INFO] [stdout]   --> src/ch4.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn run3_5() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ownership` is never used
[INFO] [stdout]   --> src/ch4.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn get_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ownership_back` is never used
[INFO] [stdout]   --> src/ch4.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn get_ownership_back(s:String)-> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_first_word` is never used
[INFO] [stdout]   --> src/ch4.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn get_first_word(s:&String) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_user` is never used
[INFO] [stdout]   --> src/ch5.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn build_user(mail:String, username:String) -> User {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `largest` is never used
[INFO] [stdout]   --> src/ch10.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn largest<T: PartialOrd + Copy >(list: &[T]) -> T {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_10` is never used
[INFO] [stdout]   --> src/ch10.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn test_10() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `x` is never used
[INFO] [stdout]   --> src/ch10.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl <X1 ,Y1> Point<X1,Y1> {
[INFO] [stdout]    | -------------------------- method in this implementation
[INFO] [stdout] 46 |     fn x(&self)->&X1 {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `distance_from_origin` is never used
[INFO] [stdout]   --> src/ch10.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | impl Point<f32,f32> {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] 69 |     fn distance_from_origin(&self)-> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_iter_impl` is never used
[INFO] [stdout]   --> src/ch10.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn test_iter_impl() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_vec` is never used
[INFO] [stdout]   --> src/ch8.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn use_vec() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_string` is never used
[INFO] [stdout]   --> src/ch8.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn use_string() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_grep` is never used
[INFO] [stdout]  --> src/ch12.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn simple_grep(args:&[String])  {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/ch12.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn run(config: Config) -> Result<String,Box<dyn Error>> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]   --> src/ch12.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Config {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ch12.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Config {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 28 |     fn new(args: &[String]) -> Result<Config, &'static str> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculation_intensity` is never used
[INFO] [stdout]  --> src/ch13.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn calculation_intensity(intensity:i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `workout` is never used
[INFO] [stdout]   --> src/ch13.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn workout(intensity:i32) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cacher` is never constructed
[INFO] [stdout]   --> src/ch13.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Cacher<T>
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `value` are never used
[INFO] [stdout]   --> src/ch13.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl <T> Cacher<T>
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn new(f: T) -> Cacher<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn value(&mut self, i:i32) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ch15.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl <T> MyBox<T> {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 13 |     fn new(t:T)-> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_my_box` is never used
[INFO] [stdout]   --> src/ch15.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn use_my_box() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_thread` is never used
[INFO] [stdout]  --> src/ch16.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn use_thread() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `fileName` should have a snake case name
[INFO] [stdout]   --> src/ch12.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fileName: String,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to snake case: `file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fileName` should have a snake case name
[INFO] [stdout]   --> src/ch12.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let fileName = args[1].clone();
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 33 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "466fb61b9cd76402174a4b6276c02f82e9a5d9a8a52e47ef4203a614f0757cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "466fb61b9cd76402174a4b6276c02f82e9a5d9a8a52e47ef4203a614f0757cd4", kill_on_drop: false }`
[INFO] [stdout] 466fb61b9cd76402174a4b6276c02f82e9a5d9a8a52e47ef4203a614f0757cd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 967eef76a80010dc17596bee45aa33ecf4fb4f646d43d714ea02fcf9296f44af
[INFO] running `Command { std: "docker" "start" "-a" "967eef76a80010dc17596bee45aa33ecf4fb4f646d43d714ea02fcf9296f44af", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_programming_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> src/ch12.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let contents = run(config).unwrap_or_else(|e| {
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity`
[INFO] [stdout]   --> src/ch13.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn workout(intensity:i32) {
[INFO] [stdout]    |            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ownership` is never used
[INFO] [stdout]   --> src/ch4.rs:78:4
[INFO] [stdout]    |
[INFO] [stdout] 78 | fn get_ownership() -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_ownership_back` is never used
[INFO] [stdout]   --> src/ch4.rs:81:4
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn get_ownership_back(s:String)-> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_first_word` is never used
[INFO] [stdout]   --> src/ch4.rs:84:4
[INFO] [stdout]    |
[INFO] [stdout] 84 | fn get_first_word(s:&String) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_grep` is never used
[INFO] [stdout]  --> src/ch12.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn simple_grep(args:&[String])  {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/ch12.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn run(config: Config) -> Result<String,Box<dyn Error>> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]   --> src/ch12.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Config {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ch12.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl Config {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 28 |     fn new(args: &[String]) -> Result<Config, &'static str> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `workout` is never used
[INFO] [stdout]   --> src/ch13.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn workout(intensity:i32) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cacher` is never constructed
[INFO] [stdout]   --> src/ch13.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct Cacher<T>
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `value` are never used
[INFO] [stdout]   --> src/ch13.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | impl <T> Cacher<T>
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn new(f: T) -> Cacher<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn value(&mut self, i:i32) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ch15.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl <T> MyBox<T> {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 13 |     fn new(t:T)-> MyBox<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_my_box` is never used
[INFO] [stdout]   --> src/ch15.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn use_my_box() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `fileName` should have a snake case name
[INFO] [stdout]   --> src/ch12.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fileName: String,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to snake case: `file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fileName` should have a snake case name
[INFO] [stdout]   --> src/ch12.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let fileName = args[1].clone();
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `file_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "967eef76a80010dc17596bee45aa33ecf4fb4f646d43d714ea02fcf9296f44af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "967eef76a80010dc17596bee45aa33ecf4fb4f646d43d714ea02fcf9296f44af", kill_on_drop: false }`
[INFO] [stdout] 967eef76a80010dc17596bee45aa33ecf4fb4f646d43d714ea02fcf9296f44af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 692ef2a8e8ffb792b2fb53f9b34b733fd44c90e08a4d2715d561cfa2faf7a425
[INFO] running `Command { std: "docker" "start" "-a" "692ef2a8e8ffb792b2fb53f9b34b733fd44c90e08a4d2715d561cfa2faf7a425", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `contents`
[INFO] [stderr]   --> src/ch12.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let contents = run(config).unwrap_or_else(|e| {
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intensity`
[INFO] [stderr]   --> src/ch13.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn workout(intensity:i32) {
[INFO] [stderr]    |            ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_ownership` is never used
[INFO] [stderr]   --> src/ch4.rs:78:4
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn get_ownership() -> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_ownership_back` is never used
[INFO] [stderr]   --> src/ch4.rs:81:4
[INFO] [stderr]    |
[INFO] [stderr] 81 | fn get_ownership_back(s:String)-> String {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_first_word` is never used
[INFO] [stderr]   --> src/ch4.rs:84:4
[INFO] [stderr]    |
[INFO] [stderr] 84 | fn get_first_word(s:&String) -> &str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `simple_grep` is never used
[INFO] [stderr]  --> src/ch12.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn simple_grep(args:&[String])  {
[INFO] [stderr]   |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run` is never used
[INFO] [stderr]   --> src/ch12.rs:18:4
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn run(config: Config) -> Result<String,Box<dyn Error>> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Config` is never constructed
[INFO] [stderr]   --> src/ch12.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | struct Config {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ch12.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl Config {
[INFO] [stderr]    | ----------- associated function in this implementation
[INFO] [stderr] 28 |     fn new(args: &[String]) -> Result<Config, &'static str> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `workout` is never used
[INFO] [stderr]   --> src/ch13.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn workout(intensity:i32) {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Cacher` is never constructed
[INFO] [stderr]   --> src/ch13.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct Cacher<T>
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `value` are never used
[INFO] [stderr]   --> src/ch13.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | impl <T> Cacher<T>
[INFO] [stderr]    | ------------------ associated items in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 30 |     fn new(f: T) -> Cacher<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     fn value(&mut self, i:i32) -> i32 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ch15.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl <T> MyBox<T> {
[INFO] [stderr]    | ----------------- associated function in this implementation
[INFO] [stderr] 13 |     fn new(t:T)-> MyBox<T> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `use_my_box` is never used
[INFO] [stderr]   --> src/ch15.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn use_my_box() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `fileName` should have a snake case name
[INFO] [stderr]   --> src/ch12.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fileName: String,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `file_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `fileName` should have a snake case name
[INFO] [stderr]   --> src/ch12.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let fileName = args[1].clone();
[INFO] [stderr]    |             ^^^^^^^^ help: convert the identifier to snake case: `file_name`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_programming_practice` (bin "rust_programming_practice" test) generated 16 warnings (run `cargo fix --bin "rust_programming_practice" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_programming_practice-d7633e51ba80b761)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test ch10::test::test_iter ... ok
[INFO] [stdout] test ch8::tests::test_use_string ... ok
[INFO] [stdout] test ch4::test::test3_5 ... ok
[INFO] [stdout] test ch8::tests::test_use_vec ... ok
[INFO] [stdout] test ch10::test::test_test_10 ... ok
[INFO] [stdout] test ch4::test::test_3_1 ... ok
[INFO] [stdout] test ch4::test::test3_3 ... ok
[INFO] [stdout] test ch10::test::test_point ... ok
[INFO] [stdout] test ch5::test::test_struct ... ok
[INFO] [stdout] test restaurant::tests::it_works ... ok
[INFO] [stdout] test restaurant::tests::test_eat ... ok
[INFO] [stdout] test ch4::test::test_3_2 ... FAILED
[INFO] [stdout] test ch16::tests::test_use_thread ... ok
[INFO] [stdout] test ch13::tests::test_calculation_intensity ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- ch4::test::test_3_2 stdout ----
[INFO] [stdout] The value of guess is 42
[INFO] [stdout] thread 'ch4::test::test_3_2' panicked at 'Index is not a number: ParseIntError { kind: Empty }', src/ch4.rs:55:44
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x559b913d107a - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x559b913d107a - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x559b913d107a - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x559b913d107a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x559b913f53bf - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x559b913cdfd5 - std::io::Write::write_fmt::hd24bfb68a1b35a25
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x559b913d0e45 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x559b913d0e45 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x559b913d2afe - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x559b913d2831 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:285:9
[INFO] [stdout]   10:     0x559b913a5afb - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h87fe9f7b2fd49e4c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   11:     0x559b913a5afb - test::test_main::{{closure}}::he94d679243a7531b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x559b913d31e4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f2d6d8b14c4769f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   13:     0x559b913d31e4 - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:695:13
[INFO] [stdout]   14:     0x559b913d2f59 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:582:13
[INFO] [stdout]   15:     0x559b913d14e6 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x559b913d2cb2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   17:     0x559b9134fe63 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   18:     0x559b913503a3 - core::result::unwrap_failed::he54eb4b2f125b26f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1687:5
[INFO] [stdout]   19:     0x559b91355e02 - core::result::Result<T,E>::expect::hda05df434a796d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1046:23
[INFO] [stdout]   20:     0x559b913610a9 - rust_programming_practice::ch4::run3_2::hf5da88f56bf7e4e1
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ch4.rs:55:23
[INFO] [stdout]   21:     0x559b9135cf96 - rust_programming_practice::ch4::test::test_3_2::hc12a7bd384d57ed8
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ch4.rs:13:9
[INFO] [stdout]   22:     0x559b9135cf77 - rust_programming_practice::ch4::test::test_3_2::{{closure}}::hdd590f98963aa53a
[INFO] [stdout]                                at /opt/rustwide/workdir/src/ch4.rs:12:19
[INFO] [stdout]   23:     0x559b91368665 - core::ops::function::FnOnce::call_once::h6ea879f6a850c5c1
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x559b913aa9cf - core::ops::function::FnOnce::call_once::ha6a70e79f7481a7e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x559b913aa9cf - test::__rust_begin_short_backtrace::hce33033019b61e69
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:655:18
[INFO] [stdout]   26:     0x559b913781bc - test::run_test::{{closure}}::h858d3528838ae3e5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:646:30
[INFO] [stdout]   27:     0x559b913781bc - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8ac2b00f01ae79e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x559b913a9aa6 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h8093d25b522725ef
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   29:     0x559b913a9aa6 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5c334c204e4a3913
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   30:     0x559b913a9aa6 - std::panicking::try::do_call::ha8b740c7b9478074
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   31:     0x559b913a9aa6 - std::panicking::try::h5d34f63d0e41b64e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   32:     0x559b913a9aa6 - std::panic::catch_unwind::hcfbb511e1aa7fc67
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   33:     0x559b913a9aa6 - test::run_test_in_process::h9abda90f802eaf21
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:678:27
[INFO] [stdout]   34:     0x559b913a9aa6 - test::run_test::run_test_inner::{{closure}}::h0f058de91f6c6edf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:572:39
[INFO] [stdout]   35:     0x559b913729c5 - test::run_test::run_test_inner::{{closure}}::h5ca48a4c59c6c1fb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/test/src/lib.rs:599:37
[INFO] [stdout]   36:     0x559b913729c5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h32bd51e1495d4a33
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   37:     0x559b91377f01 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc086fae9b128b2db
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:526:17
[INFO] [stdout]   38:     0x559b91377f01 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb66571888d270d43
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   39:     0x559b91377f01 - std::panicking::try::do_call::h4fa2ef4f6e51fecf
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   40:     0x559b91377f01 - std::panicking::try::h1e9e22b8584489b5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   41:     0x559b91377f01 - std::panic::catch_unwind::h44698a3de0e0769e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   42:     0x559b91377f01 - std::thread::Builder::spawn_unchecked_::{{closure}}::h50153abde3fe239e
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/thread/mod.rs:525:30
[INFO] [stdout]   43:     0x559b91377f01 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe5bbf6f38394364
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x559b913d76b5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0d83cb2920a49046
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   45:     0x559b913d76b5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbe0a008aa7d9ef59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   46:     0x559b913d76b5 - std::sys::unix::thread::Thread::new::thread_start::h3a466996bdf6b1f9
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   47:     0x7f387e5dab43 - <unknown>
[INFO] [stdout]   48:     0x7f387e66bbb4 - __clone
[INFO] [stdout]   49:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     ch4::test::test_3_2
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 13 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin rust_programming_practice`
[INFO] running `Command { std: "docker" "inspect" "692ef2a8e8ffb792b2fb53f9b34b733fd44c90e08a4d2715d561cfa2faf7a425", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "692ef2a8e8ffb792b2fb53f9b34b733fd44c90e08a4d2715d561cfa2faf7a425", kill_on_drop: false }`
[INFO] [stdout] 692ef2a8e8ffb792b2fb53f9b34b733fd44c90e08a4d2715d561cfa2faf7a425
