[INFO] cloning repository https://github.com/ensj1/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ensj1/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fensj1%2Frust-learning", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c88709b8f04f3066dd4f1c0b33d9be6082ba8386
[INFO] testing ensj1/rust-learning against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fensj1%2Frust-learning" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ensj1/rust-learning
[INFO] finished tweaking git repo https://github.com/ensj1/rust-learning
[INFO] tweaked toml for git repo https://github.com/ensj1/rust-learning written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ensj1/rust-learning on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ensj1/rust-learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "a714ff640c4ac25b0de0f6c67b5dd588214854acb22e991ef297c52498548bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a714ff640c4ac25b0de0f6c67b5dd588214854acb22e991ef297c52498548bc1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1042eb03177cc8b30bdff8d08ae36ce29b52bc52ef2cccb3815d43797872b76b
[INFO] running `Command { std: "docker" "start" "-a" "1042eb03177cc8b30bdff8d08ae36ce29b52bc52ef2cccb3815d43797872b76b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling actix-http v3.9.0
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling idna_adapter v1.2.0
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[INFO] [stderr]    Compiling actix-web v4.9.0
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `learn_rust` is never used
[INFO] [stdout]   --> src/main.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn learn_rust() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_element` is never used
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn find_element(vec: Vec<i32>, value: i32) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `devide` is never used
[INFO] [stdout]   --> src/main.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn devide(a: i32, b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]    --> src/main.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn square(x: i32) -> (i32, i32) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `celsium_to_fahrenfeit` is never used
[INFO] [stdout]    --> src/main.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn celsium_to_fahrenfeit(x: f32) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_loop` is never used
[INFO] [stdout]    --> src/main.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn test_loop() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `iterate_possible` is never used
[INFO] [stdout]    --> src/main.rs:121:4
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn iterate_possible() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_max_min` is never used
[INFO] [stdout]    --> src/main.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn find_max_min() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ownership` is never used
[INFO] [stdout]    --> src/main.rs:168:4
[INFO] [stdout]     |
[INFO] [stdout] 168 | fn ownership() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrow` is never used
[INFO] [stdout]    --> src/main.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn borrow(propellant: &mut String) -> usize {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chanleng_trim_space` is never used
[INFO] [stdout]    --> src/main.rs:186:4
[INFO] [stdout]     |
[INFO] [stdout] 186 | fn chanleng_trim_space() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_spaces` is never used
[INFO] [stdout]    --> src/main.rs:210:4
[INFO] [stdout]     |
[INFO] [stdout] 210 | fn trim_spaces(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_out` is never used
[INFO] [stdout]    --> src/main.rs:232:4
[INFO] [stdout]     |
[INFO] [stdout] 232 | fn read_out() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_control` is never used
[INFO] [stdout]    --> src/main.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn take_control() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_control_str` is never used
[INFO] [stdout]    --> src/main.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn take_control_str(name: &mut String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]  --> src/test.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn add(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `Command { std: "docker" "inspect" "1042eb03177cc8b30bdff8d08ae36ce29b52bc52ef2cccb3815d43797872b76b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1042eb03177cc8b30bdff8d08ae36ce29b52bc52ef2cccb3815d43797872b76b", kill_on_drop: false }`
[INFO] [stdout] 1042eb03177cc8b30bdff8d08ae36ce29b52bc52ef2cccb3815d43797872b76b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68dfadac04f844996a679787a2e59fc3f6b2514d10dd3941fc3b860b7b96d3fc
[INFO] running `Command { std: "docker" "start" "-a" "68dfadac04f844996a679787a2e59fc3f6b2514d10dd3941fc3b860b7b96d3fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `learn_rust` is never used
[INFO] [stdout]   --> src/main.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn learn_rust() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_element` is never used
[INFO] [stdout]   --> src/main.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn find_element(vec: Vec<i32>, value: i32) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `devide` is never used
[INFO] [stdout]   --> src/main.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn devide(a: i32, b: i32) -> Result<i32, String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]    --> src/main.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn square(x: i32) -> (i32, i32) {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `celsium_to_fahrenfeit` is never used
[INFO] [stdout]    --> src/main.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn celsium_to_fahrenfeit(x: f32) -> f32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_loop` is never used
[INFO] [stdout]    --> src/main.rs:109:4
[INFO] [stdout]     |
[INFO] [stdout] 109 | fn test_loop() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `iterate_possible` is never used
[INFO] [stdout]    --> src/main.rs:121:4
[INFO] [stdout]     |
[INFO] [stdout] 121 | fn iterate_possible() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_max_min` is never used
[INFO] [stdout]    --> src/main.rs:145:4
[INFO] [stdout]     |
[INFO] [stdout] 145 | fn find_max_min() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ownership` is never used
[INFO] [stdout]    --> src/main.rs:168:4
[INFO] [stdout]     |
[INFO] [stdout] 168 | fn ownership() {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `borrow` is never used
[INFO] [stdout]    --> src/main.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn borrow(propellant: &mut String) -> usize {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `chanleng_trim_space` is never used
[INFO] [stdout]    --> src/main.rs:186:4
[INFO] [stdout]     |
[INFO] [stdout] 186 | fn chanleng_trim_space() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trim_spaces` is never used
[INFO] [stdout]    --> src/main.rs:210:4
[INFO] [stdout]     |
[INFO] [stdout] 210 | fn trim_spaces(s: &str) -> &str {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_out` is never used
[INFO] [stdout]    --> src/main.rs:232:4
[INFO] [stdout]     |
[INFO] [stdout] 232 | fn read_out() {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_control` is never used
[INFO] [stdout]    --> src/main.rs:250:4
[INFO] [stdout]     |
[INFO] [stdout] 250 | fn take_control() {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_control_str` is never used
[INFO] [stdout]    --> src/main.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn take_control_str(name: &mut String) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "68dfadac04f844996a679787a2e59fc3f6b2514d10dd3941fc3b860b7b96d3fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68dfadac04f844996a679787a2e59fc3f6b2514d10dd3941fc3b860b7b96d3fc", kill_on_drop: false }`
[INFO] [stdout] 68dfadac04f844996a679787a2e59fc3f6b2514d10dd3941fc3b860b7b96d3fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bbef5307cc2f63622b9a2e78df32d53f57e2fe710a08707e9378d24bf9d5a28a
[INFO] running `Command { std: "docker" "start" "-a" "bbef5307cc2f63622b9a2e78df32d53f57e2fe710a08707e9378d24bf9d5a28a", kill_on_drop: false }`
[INFO] [stderr] warning: function `learn_rust` is never used
[INFO] [stderr]   --> src/main.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn learn_rust() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_element` is never used
[INFO] [stderr]   --> src/main.rs:88:4
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn find_element(vec: Vec<i32>, value: i32) -> Option<usize> {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `devide` is never used
[INFO] [stderr]   --> src/main.rs:92:4
[INFO] [stderr]    |
[INFO] [stderr] 92 | fn devide(a: i32, b: i32) -> Result<i32, String> {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `square` is never used
[INFO] [stderr]    --> src/main.rs:100:4
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn square(x: i32) -> (i32, i32) {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `celsium_to_fahrenfeit` is never used
[INFO] [stderr]    --> src/main.rs:105:4
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn celsium_to_fahrenfeit(x: f32) -> f32 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_loop` is never used
[INFO] [stderr]    --> src/main.rs:109:4
[INFO] [stderr]     |
[INFO] [stderr] 109 | fn test_loop() {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `iterate_possible` is never used
[INFO] [stderr]    --> src/main.rs:121:4
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn iterate_possible() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `find_max_min` is never used
[INFO] [stderr]    --> src/main.rs:145:4
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn find_max_min() {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `ownership` is never used
[INFO] [stderr]    --> src/main.rs:168:4
[INFO] [stderr]     |
[INFO] [stderr] 168 | fn ownership() {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `borrow` is never used
[INFO] [stderr]    --> src/main.rs:179:4
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn borrow(propellant: &mut String) -> usize {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `chanleng_trim_space` is never used
[INFO] [stderr]    --> src/main.rs:186:4
[INFO] [stderr]     |
[INFO] [stderr] 186 | fn chanleng_trim_space() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `trim_spaces` is never used
[INFO] [stderr]    --> src/main.rs:210:4
[INFO] [stderr]     |
[INFO] [stderr] 210 | fn trim_spaces(s: &str) -> &str {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_out` is never used
[INFO] [stderr]    --> src/main.rs:232:4
[INFO] [stderr]     |
[INFO] [stderr] 232 | fn read_out() {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `take_control` is never used
[INFO] [stderr]    --> src/main.rs:250:4
[INFO] [stderr]     |
[INFO] [stderr] 250 | fn take_control() {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `take_control_str` is never used
[INFO] [stderr]    --> src/main.rs:258:4
[INFO] [stderr]     |
[INFO] [stderr] 258 | fn take_control_str(name: &mut String) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-learning` (bin "rust-learning" test) generated 15 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learning-62ffe638d8ac87ef)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::tests::test_add ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::tests::test_add stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'test::tests::test_add' (18) panicked at src/test.rs:12:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 5
[INFO] [stdout]  right: 4
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5ae37cd6624a - std[29689e6404d28ef9]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5ae37cd6624a - std[29689e6404d28ef9]::backtrace_rs::backtrace::trace_unsynchronized::<std[29689e6404d28ef9]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5ae37cd6624a - std[29689e6404d28ef9]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5ae37cd6624a - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5ae37cd7a03a - <core[e929cb53b82a81ca]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5ae37cd7a03a - core[e929cb53b82a81ca]::fmt::write
[INFO] [stdout]    6:     0x5ae37cd6aa82 - std[29689e6404d28ef9]::io::default_write_fmt::<alloc[9d7caffeb3b5d2c6]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x5ae37cd6aa82 - <alloc[9d7caffeb3b5d2c6]::vec::Vec<u8> as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x5ae37cd4524f - <std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5ae37cd4524f - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5ae37cd5e6a9 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5ae37ccfa6ac - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x5ae37ccfa6ac - test[a24b3028667022f7]::test_main_inner::<test[a24b3028667022f7]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5ae37cd5e862 - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x5ae37cd5e862 - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5ae37cd45308 - std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5ae37cd3a519 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5ae37cd4601d - __rustc[3aed6af316653e63]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5ae37cd7a72c - core[e929cb53b82a81ca]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5ae37cd7a643 - core[e929cb53b82a81ca]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x5ae37cd3a495 - core[e929cb53b82a81ca]::panicking::assert_failed::<i32, i32>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x5ae37cced76d - rust_learning[adce34c45dd6e3a2]::test::tests::test_add
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:12:9
[INFO] [stdout]   22:     0x5ae37cced5b7 - rust_learning[adce34c45dd6e3a2]::test::tests::test_add::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:9:18
[INFO] [stdout]   23:     0x5ae37cced8e6 - <rust_learning[adce34c45dd6e3a2]::test::tests::test_add::{closure#0} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5ae37cced98b - <fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5ae37cced98b - test[a24b3028667022f7]::__rust_begin_short_backtrace::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:724:18
[INFO] [stdout]   26:     0x5ae37ccfb17b - test[a24b3028667022f7]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:74
[INFO] [stdout]   27:     0x5ae37ccfb17b - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5ae37ccfb17b - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5ae37ccfb17b - std[29689e6404d28ef9]::panicking::catch_unwind::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5ae37ccfb17b - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5ae37ccfb17b - test[a24b3028667022f7]::run_test_in_process
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:27
[INFO] [stdout]   32:     0x5ae37ccfb17b - test[a24b3028667022f7]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:668:43
[INFO] [stdout]   33:     0x5ae37ccf4894 - test[a24b3028667022f7]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:698:41
[INFO] [stdout]   34:     0x5ae37ccf4894 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<test[a24b3028667022f7]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5ae37ccfdd82 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x5ae37ccfdd82 - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5ae37ccfdd82 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5ae37ccfdd82 - std[29689e6404d28ef9]::panicking::catch_unwind::<(), core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5ae37ccfdd82 - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5ae37ccfdd82 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x5ae37ccfdd82 - <std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5ae37cd65b5f - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn core[e929cb53b82a81ca]::ops::function::FnOnce<(), Output = ()> + core[e929cb53b82a81ca]::marker::Send> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   43:     0x5ae37cd65b5f - <std[29689e6404d28ef9]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x712d8791eaa4 - <unknown>
[INFO] [stdout]   45:     0x712d879aba64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::tests::test_add
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin rust-learning`
[INFO] running `Command { std: "docker" "inspect" "bbef5307cc2f63622b9a2e78df32d53f57e2fe710a08707e9378d24bf9d5a28a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbef5307cc2f63622b9a2e78df32d53f57e2fe710a08707e9378d24bf9d5a28a", kill_on_drop: false }`
[INFO] [stdout] bbef5307cc2f63622b9a2e78df32d53f57e2fe710a08707e9378d24bf9d5a28a
