[INFO] cloning repository https://github.com/mabartcz/rustorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mabartcz/rustorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmabartcz%2Frustorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmabartcz%2Frustorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f24fdb80ce8a57b33cccb64b5f38d3dd246f3250
[INFO] checking mabartcz/rustorial against master#2e6fc425411280c658d852813de01c5157255088 for pr-128013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmabartcz%2Frustorial" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mabartcz/rustorial on toolchain 2e6fc425411280c658d852813de01c5157255088
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mabartcz/rustorial
[INFO] finished tweaking git repo https://github.com/mabartcz/rustorial
[INFO] tweaked toml for git repo https://github.com/mabartcz/rustorial written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mabartcz/rustorial 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" "+2e6fc425411280c658d852813de01c5157255088" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c91b1a2de4f68e868a0c43aeb09d031931163131ddca45ec0c7dacc6369c3d6b
[INFO] running `Command { std: "docker" "start" "-a" "c91b1a2de4f68e868a0c43aeb09d031931163131ddca45ec0c7dacc6369c3d6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c91b1a2de4f68e868a0c43aeb09d031931163131ddca45ec0c7dacc6369c3d6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c91b1a2de4f68e868a0c43aeb09d031931163131ddca45ec0c7dacc6369c3d6b", kill_on_drop: false }`
[INFO] [stdout] c91b1a2de4f68e868a0c43aeb09d031931163131ddca45ec0c7dacc6369c3d6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+2e6fc425411280c658d852813de01c5157255088" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cce41c42ba23b44e848eb86b2f055c90655b076e814be6f4e03d15e47383df20
[INFO] running `Command { std: "docker" "start" "-a" "cce41c42ba23b44e848eb86b2f055c90655b076e814be6f4e03d15e47383df20", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `Car` is never constructed
[INFO] [stdout]   --> src/structs.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Car {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `paint`, `new`, and `show` are never used
[INFO] [stdout]   --> src/structs.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Car {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 19 |     // Instance method (changes instance of struct)
[INFO] [stdout] 20 |     fn paint(&mut self, color: Color) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn new() -> Car{ 
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn show(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_car` is never used
[INFO] [stdout]   --> src/structs.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn create_car() -> Car{
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_structs` is never used
[INFO] [stdout]   --> src/structs.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn test_structs(){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_plan` is never used
[INFO] [stdout]   --> src/option.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn create_plan() -> Option<Exercise> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_option` is never used
[INFO] [stdout]   --> src/option.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn test_option() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/generic.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Person<T: Os>{
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Os` is never used
[INFO] [stdout]  --> src/generic.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | trait Os{
[INFO] [stdout]   |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Linux` is never constructed
[INFO] [stdout]   --> src/generic.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Linux{}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_generic` is never used
[INFO] [stdout]   --> src/generic.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn test_generic() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_buffer` is never used
[INFO] [stdout]  --> src/buffer.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_buffer() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_vectors` is never used
[INFO] [stdout]  --> src/vectors.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_vectors() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_vec_string` is never used
[INFO] [stdout]   --> src/vectors.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn test_vec_string(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `system_info` is never used
[INFO] [stdout]  --> src/info.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn system_info() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hashmap` is never used
[INFO] [stdout]  --> src/hashmaps.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_hashmap(){
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hashset` is never used
[INFO] [stdout]   --> src/hashmaps.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn test_hashset() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_iterators` is never used
[INFO] [stdout]  --> src/iterators.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_iterators(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `time_test` is never used
[INFO] [stdout]  --> src/time.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn time_test(){
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chrono` is never used
[INFO] [stdout]   --> src/time.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn test_chrono() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_math` is never used
[INFO] [stdout]  --> src/threading.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn do_math(workload: u128)  -> u128{
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_threading` is never used
[INFO] [stdout]   --> src/threading.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn test_threading() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/scope_threads.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Person {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_thread_variables` is never used
[INFO] [stdout]  --> src/scope_threads.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn test_thread_variables(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_mutex_basic` is never used
[INFO] [stdout]  --> src/mutexs.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn text_mutex_basic() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_mutex` is never used
[INFO] [stdout]   --> src/mutexs.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn text_mutex() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_channels` is never used
[INFO] [stdout]  --> src/channels.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn test_channels(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_image` is never used
[INFO] [stdout]  --> src/imager.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_image() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_macros` is never used
[INFO] [stdout]  --> src/macros.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn test_macros(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_work` is never used
[INFO] [stdout]  --> src/testing.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn do_work(first: &str, second: &str) -> String{
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Car` is never constructed
[INFO] [stdout]   --> src/structs.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Car {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `paint`, `new`, and `show` are never used
[INFO] [stdout]   --> src/structs.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Car {
[INFO] [stdout]    | -------- associated items in this implementation
[INFO] [stdout] 19 |     // Instance method (changes instance of struct)
[INFO] [stdout] 20 |     fn paint(&mut self, color: Color) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn new() -> Car{ 
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     fn show(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_car` is never used
[INFO] [stdout]   --> src/structs.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn create_car() -> Car{
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_structs` is never used
[INFO] [stdout]   --> src/structs.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn test_structs(){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_plan` is never used
[INFO] [stdout]   --> src/option.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn create_plan() -> Option<Exercise> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_option` is never used
[INFO] [stdout]   --> src/option.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn test_option() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/generic.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Person<T: Os>{
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Os` is never used
[INFO] [stdout]  --> src/generic.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | trait Os{
[INFO] [stdout]   |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Linux` is never constructed
[INFO] [stdout]   --> src/generic.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Linux{}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_generic` is never used
[INFO] [stdout]   --> src/generic.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn test_generic() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_buffer` is never used
[INFO] [stdout]  --> src/buffer.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_buffer() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_vectors` is never used
[INFO] [stdout]  --> src/vectors.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_vectors() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_vec_string` is never used
[INFO] [stdout]   --> src/vectors.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn test_vec_string(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `system_info` is never used
[INFO] [stdout]  --> src/info.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn system_info() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hashmap` is never used
[INFO] [stdout]  --> src/hashmaps.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_hashmap(){
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/channels.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         sender.send(x);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let _ = sender.send(x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_hashset` is never used
[INFO] [stdout]   --> src/hashmaps.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn test_hashset() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_iterators` is never used
[INFO] [stdout]  --> src/iterators.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test_iterators(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `time_test` is never used
[INFO] [stdout]  --> src/time.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn time_test(){
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_chrono` is never used
[INFO] [stdout]   --> src/time.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn test_chrono() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_math` is never used
[INFO] [stdout]  --> src/threading.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn do_math(workload: u128)  -> u128{
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_threading` is never used
[INFO] [stdout]   --> src/threading.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn test_threading() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/scope_threads.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Person {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_thread_variables` is never used
[INFO] [stdout]  --> src/scope_threads.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn test_thread_variables(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_mutex_basic` is never used
[INFO] [stdout]  --> src/mutexs.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn text_mutex_basic() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `text_mutex` is never used
[INFO] [stdout]   --> src/mutexs.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn text_mutex() {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_channels` is never used
[INFO] [stdout]  --> src/channels.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn test_channels(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_image` is never used
[INFO] [stdout]  --> src/imager.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn test_image() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_macros` is never used
[INFO] [stdout]  --> src/macros.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn test_macros(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/channels.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         sender.send(x);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let _ = sender.send(x);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.85s
[INFO] running `Command { std: "docker" "inspect" "cce41c42ba23b44e848eb86b2f055c90655b076e814be6f4e03d15e47383df20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cce41c42ba23b44e848eb86b2f055c90655b076e814be6f4e03d15e47383df20", kill_on_drop: false }`
[INFO] [stdout] cce41c42ba23b44e848eb86b2f055c90655b076e814be6f4e03d15e47383df20
[INFO] checking mabartcz/rustorial against try#d856f2da3433420b7077c0dc7ee9441455bc1302 for pr-128013
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmabartcz%2Frustorial" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mabartcz/rustorial on toolchain d856f2da3433420b7077c0dc7ee9441455bc1302
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d856f2da3433420b7077c0dc7ee9441455bc1302" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mabartcz/rustorial
[INFO] finished tweaking git repo https://github.com/mabartcz/rustorial
[INFO] tweaked toml for git repo https://github.com/mabartcz/rustorial written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mabartcz/rustorial 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" "+d856f2da3433420b7077c0dc7ee9441455bc1302" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 89 packages to latest compatible versions
[INFO] [stderr]       Adding adler v1.0.2
[INFO] [stderr]       Adding aligned-vec v0.5.0 (latest: v0.6.1)
[INFO] [stderr]       Adding anyhow v1.0.86
[INFO] [stderr]       Adding arbitrary v1.3.2
[INFO] [stderr]       Adding arg_enum_proc_macro v0.3.4
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[INFO] [stderr]       Adding av1-grain v0.2.3
[INFO] [stderr]       Adding avif-serialize v0.8.1
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[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
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[INFO] [stderr]       Adding bytemuck v1.16.1
[INFO] [stderr]       Adding byteorder-lite v0.1.0
[INFO] [stderr]       Adding cfg-expr v0.15.8
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+d856f2da3433420b7077c0dc7ee9441455bc1302" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ffeac8a82a45942a7d945a30959646661723b2d7829c9e99ba6868f14403298
[INFO] running `Command { std: "docker" "start" "-a" "1ffeac8a82a45942a7d945a30959646661723b2d7829c9e99ba6868f14403298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ffeac8a82a45942a7d945a30959646661723b2d7829c9e99ba6868f14403298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffeac8a82a45942a7d945a30959646661723b2d7829c9e99ba6868f14403298", kill_on_drop: false }`
[INFO] [stdout] 1ffeac8a82a45942a7d945a30959646661723b2d7829c9e99ba6868f14403298
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+d856f2da3433420b7077c0dc7ee9441455bc1302" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19c67b03f4a7574e9b11ca59be91306e12775974c2736c61c49ce89eeaa9635c
[INFO] running `Command { std: "docker" "start" "-a" "19c67b03f4a7574e9b11ca59be91306e12775974c2736c61c49ce89eeaa9635c", kill_on_drop: false }`
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[INFO] [stderr]     Checking bitstream-io v2.5.0
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]    Compiling noop_proc_macro v0.3.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking rgb v0.8.45
[INFO] [stderr]     Checking avif-serialize v0.8.1
[INFO] [stderr]     Checking loop9 v0.1.5
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling rav1e v0.7.1
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking zune-core v0.4.12
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking byteorder-lite v0.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking gif v0.13.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking zune-jpeg v0.4.13
[INFO] [stderr]     Checking circular-buffer v0.1.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking image-webp v0.1.3
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]    Compiling simd_helpers v0.1.0
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking exr v1.72.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking v_frame v0.3.8
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/num-integer-0.1.46/src/lib.rs:511:41
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     return (1 << shift).abs();
[INFO] [stdout]     |                                         ^^^ multiple `abs` found
[INFO] [stdout] ...
[INFO] [stdout] 841 | impl_integer_for_isize!(i8, test_integer_i8);
[INFO] [stdout]     | -------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl for the type `i128`
[INFO] [stdout]     = note: candidate #2 is defined in an impl for the type `i16`
[INFO] [stdout]     = note: candidate #3 is defined in an impl for the type `i32`
[INFO] [stdout]     = note: candidate #4 is defined in an impl for the type `i64`
[INFO] [stdout]     = note: and 2 others
[INFO] [stdout]     = note: this error originates in the macro `impl_integer_for_isize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/num-integer-0.1.46/src/lib.rs:511:41
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     return (1 << shift).abs();
[INFO] [stdout]     |                                         ^^^ multiple `abs` found
[INFO] [stdout] ...
[INFO] [stdout] 842 | impl_integer_for_isize!(i16, test_integer_i16);
[INFO] [stdout]     | ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl for the type `i128`
[INFO] [stdout]     = note: candidate #2 is defined in an impl for the type `i16`
[INFO] [stdout]     = note: candidate #3 is defined in an impl for the type `i32`
[INFO] [stdout]     = note: candidate #4 is defined in an impl for the type `i64`
[INFO] [stdout]     = note: and 2 others
[INFO] [stdout]     = note: this error originates in the macro `impl_integer_for_isize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/num-integer-0.1.46/src/lib.rs:511:41
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     return (1 << shift).abs();
[INFO] [stdout]     |                                         ^^^ multiple `abs` found
[INFO] [stdout] ...
[INFO] [stdout] 843 | impl_integer_for_isize!(i32, test_integer_i32);
[INFO] [stdout]     | ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl for the type `i128`
[INFO] [stdout]     = note: candidate #2 is defined in an impl for the type `i16`
[INFO] [stdout]     = note: candidate #3 is defined in an impl for the type `i32`
[INFO] [stdout]     = note: candidate #4 is defined in an impl for the type `i64`
[INFO] [stdout]     = note: and 2 others
[INFO] [stdout]     = note: this error originates in the macro `impl_integer_for_isize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/num-integer-0.1.46/src/lib.rs:511:41
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     return (1 << shift).abs();
[INFO] [stdout]     |                                         ^^^ multiple `abs` found
[INFO] [stdout] ...
[INFO] [stdout] 844 | impl_integer_for_isize!(i64, test_integer_i64);
[INFO] [stdout]     | ---------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl for the type `i128`
[INFO] [stdout]     = note: candidate #2 is defined in an impl for the type `i16`
[INFO] [stdout]     = note: candidate #3 is defined in an impl for the type `i32`
[INFO] [stdout]     = note: candidate #4 is defined in an impl for the type `i64`
[INFO] [stdout]     = note: and 2 others
[INFO] [stdout]     = note: this error originates in the macro `impl_integer_for_isize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/num-integer-0.1.46/src/lib.rs:511:41
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     return (1 << shift).abs();
[INFO] [stdout]     |                                         ^^^ multiple `abs` found
[INFO] [stdout] ...
[INFO] [stdout] 845 | impl_integer_for_isize!(i128, test_integer_i128);
[INFO] [stdout]     | ------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl for the type `i128`
[INFO] [stdout]     = note: candidate #2 is defined in an impl for the type `i16`
[INFO] [stdout]     = note: candidate #3 is defined in an impl for the type `i32`
[INFO] [stdout]     = note: candidate #4 is defined in an impl for the type `i64`
[INFO] [stdout]     = note: and 2 others
[INFO] [stdout]     = note: this error originates in the macro `impl_integer_for_isize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/num-integer-0.1.46/src/lib.rs:511:41
[INFO] [stdout]     |
[INFO] [stdout] 511 |                     return (1 << shift).abs();
[INFO] [stdout]     |                                         ^^^ multiple `abs` found
[INFO] [stdout] ...
[INFO] [stdout] 846 | impl_integer_for_isize!(isize, test_integer_isize);
[INFO] [stdout]     | -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl for the type `i128`
[INFO] [stdout]     = note: candidate #2 is defined in an impl for the type `i16`
[INFO] [stdout]     = note: candidate #3 is defined in an impl for the type `i32`
[INFO] [stdout]     = note: candidate #4 is defined in an impl for the type `i64`
[INFO] [stdout]     = note: and 2 others
[INFO] [stdout]     = note: this error originates in the macro `impl_integer_for_isize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-integer` (lib) due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "19c67b03f4a7574e9b11ca59be91306e12775974c2736c61c49ce89eeaa9635c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19c67b03f4a7574e9b11ca59be91306e12775974c2736c61c49ce89eeaa9635c", kill_on_drop: false }`
[INFO] [stdout] 19c67b03f4a7574e9b11ca59be91306e12775974c2736c61c49ce89eeaa9635c