[INFO] cloning repository https://github.com/keehyun2/TestRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keehyun2/TestRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeehyun2%2FTestRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeehyun2%2FTestRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e9aa5c32ae403e8973f863605f916d89e735308
[INFO] testing keehyun2/TestRust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeehyun2%2FTestRust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keehyun2/TestRust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keehyun2/TestRust
[INFO] finished tweaking git repo https://github.com/keehyun2/TestRust
[INFO] tweaked toml for git repo https://github.com/keehyun2/TestRust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/keehyun2/TestRust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f675ebd9a53db61585046edf149ff15f78d6338b9a98a524ff071efb923ab6f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f675ebd9a53db61585046edf149ff15f78d6338b9a98a524ff071efb923ab6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f675ebd9a53db61585046edf149ff15f78d6338b9a98a524ff071efb923ab6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f675ebd9a53db61585046edf149ff15f78d6338b9a98a524ff071efb923ab6f1", kill_on_drop: false }`
[INFO] [stdout] f675ebd9a53db61585046edf149ff15f78d6338b9a98a524ff071efb923ab6f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca13f50d5b3001a802bcf4c5b31d334e6e34dd610ceac60d05394460ad03613c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca13f50d5b3001a802bcf4c5b31d334e6e34dd610ceac60d05394460ad03613c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling test_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/ch3.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ;
[INFO] [stdout]    |     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/ch3.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let x = 2.0; // f64
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/ch3.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let y: f32 = 3.0; // f32
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/ch3.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (x, y, z) = tup;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/ch3.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (x, y, z) = tup;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `five_hundred`
[INFO] [stdout]   --> src/ch3.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let five_hundred = x.0;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_five_hundred`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `six_point_four`
[INFO] [stdout]   --> src/ch3.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let six_point_four = x.1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_six_point_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `one`
[INFO] [stdout]   --> src/ch3.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let one = x.2;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `chater2`
[INFO] [stdout]  --> src/ch2.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn chater2() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `chater3`
[INFO] [stdout]  --> src/ch3.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn chater3() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `another_function`
[INFO] [stdout]   --> src/ch3.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn another_function(x: i32, y: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `five`
[INFO] [stdout]   --> src/ch3.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn five(x: i32) -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.39s
[INFO] running `Command { std: "docker" "inspect" "ca13f50d5b3001a802bcf4c5b31d334e6e34dd610ceac60d05394460ad03613c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca13f50d5b3001a802bcf4c5b31d334e6e34dd610ceac60d05394460ad03613c", kill_on_drop: false }`
[INFO] [stdout] ca13f50d5b3001a802bcf4c5b31d334e6e34dd610ceac60d05394460ad03613c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 551b9c6245a2c6098c4dd326a540797fe118d4d7cc94eeae67e2233cd22c2bac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "551b9c6245a2c6098c4dd326a540797fe118d4d7cc94eeae67e2233cd22c2bac", kill_on_drop: false }`
[INFO] [stderr]    Compiling test_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/ch3.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     ;
[INFO] [stdout]    |     ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/ch3.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let x = 2.0; // f64
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/ch3.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let y: f32 = 3.0; // f32
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/ch3.rs:39:10
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (x, y, z) = tup;
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/ch3.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (x, y, z) = tup;
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `five_hundred`
[INFO] [stdout]   --> src/ch3.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let five_hundred = x.0;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_five_hundred`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `six_point_four`
[INFO] [stdout]   --> src/ch3.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let six_point_four = x.1;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_six_point_four`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `one`
[INFO] [stdout]   --> src/ch3.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let one = x.2;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_one`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `chater2`
[INFO] [stdout]  --> src/ch2.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn chater2() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `chater3`
[INFO] [stdout]  --> src/ch3.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn chater3() {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `another_function`
[INFO] [stdout]   --> src/ch3.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn another_function(x: i32, y: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `five`
[INFO] [stdout]   --> src/ch3.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn five(x: i32) -> i32 {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "551b9c6245a2c6098c4dd326a540797fe118d4d7cc94eeae67e2233cd22c2bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "551b9c6245a2c6098c4dd326a540797fe118d4d7cc94eeae67e2233cd22c2bac", kill_on_drop: false }`
[INFO] [stdout] 551b9c6245a2c6098c4dd326a540797fe118d4d7cc94eeae67e2233cd22c2bac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c579505b7df4c6b37786009571d7ac08c67078a56a6fd26553daede895c71929
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c579505b7df4c6b37786009571d7ac08c67078a56a6fd26553daede895c71929", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/ch3.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     ;
[INFO] [stderr]    |     ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/ch3.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let x = 2.0; // f64
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/ch3.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let y: f32 = 3.0; // f32
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/ch3.rs:39:10
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let (x, y, z) = tup;
[INFO] [stderr]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `z`
[INFO] [stderr]   --> src/ch3.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let (x, y, z) = tup;
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `five_hundred`
[INFO] [stderr]   --> src/ch3.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let five_hundred = x.0;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_five_hundred`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `six_point_four`
[INFO] [stderr]   --> src/ch3.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let six_point_four = x.1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_six_point_four`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> src/ch3.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let one = x.2;
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_one`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chater2`
[INFO] [stderr]  --> src/ch2.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn chater2() {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `chater3`
[INFO] [stderr]  --> src/ch3.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn chater3() {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `another_function`
[INFO] [stderr]   --> src/ch3.rs:56:4
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn another_function(x: i32, y: i32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `five`
[INFO] [stderr]   --> src/ch3.rs:61:4
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn five(x: i32) -> i32 {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `test_rust` (bin "test_rust" test) generated 12 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/test_rust-7608ffeaae266286)
[INFO] running `Command { std: "docker" "inspect" "c579505b7df4c6b37786009571d7ac08c67078a56a6fd26553daede895c71929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c579505b7df4c6b37786009571d7ac08c67078a56a6fd26553daede895c71929", kill_on_drop: false }`
[INFO] [stdout] c579505b7df4c6b37786009571d7ac08c67078a56a6fd26553daede895c71929