[INFO] cloning repository https://github.com/haruto17/study-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haruto17/study-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharuto17%2Fstudy-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharuto17%2Fstudy-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82b94a5b67a79f42f21d5b0a416fd5d92ba3a35a
[INFO] testing haruto17/study-rust against 1.83.0 for beta-1.84.0-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharuto17%2Fstudy-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/haruto17/study-rust on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/haruto17/study-rust
[INFO] finished tweaking git repo https://github.com/haruto17/study-rust
[INFO] tweaked toml for git repo https://github.com/haruto17/study-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/haruto17/study-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a93a934464e0d846ed0b0d1e24d61f579b331b7cc2f62b118ce50c3191efb9a
[INFO] running `Command { std: "docker" "start" "-a" "6a93a934464e0d846ed0b0d1e24d61f579b331b7cc2f62b118ce50c3191efb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a93a934464e0d846ed0b0d1e24d61f579b331b7cc2f62b118ce50c3191efb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a93a934464e0d846ed0b0d1e24d61f579b331b7cc2f62b118ce50c3191efb9a", kill_on_drop: false }`
[INFO] [stdout] 6a93a934464e0d846ed0b0d1e24d61f579b331b7cc2f62b118ce50c3191efb9a
[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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44013122fc26aa02442f2c72779ee03c17d4a0752bdb20c1c41e09531e1adf34
[INFO] running `Command { std: "docker" "start" "-a" "44013122fc26aa02442f2c72779ee03c17d4a0752bdb20c1c41e09531e1adf34", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-sink v0.3.27
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]    Compiling futures-io v0.3.27
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.27
[INFO] [stderr]    Compiling futures-executor v0.3.27
[INFO] [stderr]    Compiling futures v0.3.27
[INFO] [stderr]    Compiling study-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |     let mut m = 0;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let y: i64 = x as i64;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut name = "TANAKA";
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_name` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     name = "SASAKI";
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]    --> src/main.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |     let mut name = String::from("TANAKA");
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/main.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let q = if n == 1 { "OK!" } else { "NG!" };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:278:9
[INFO] [stdout]     |
[INFO] [stdout] 278 |     for i in 1..10 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |     let b = 123;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:253:13
[INFO] [stdout]     |
[INFO] [stdout] 253 |         for i in 1..10 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |         for i in 1..10 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |     let mut m = 0;
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `COUNTER` is never used
[INFO] [stdout]    --> src/main.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | static COUNTER: u32 = 100;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_POINTS` is never used
[INFO] [stdout]    --> src/main.rs:125:11
[INFO] [stdout]     |
[INFO] [stdout] 125 |     const MAX_POINTS: u32 = 100;
[INFO] [stdout]     |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]    --> src/main.rs:329:4
[INFO] [stdout]     |
[INFO] [stdout] 329 | fn add(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divide` is never used
[INFO] [stdout]    --> src/main.rs:334:4
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn divide(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: union `MyUnion` is never used
[INFO] [stdout]    --> src/main.rs:354:7
[INFO] [stdout]     |
[INFO] [stdout] 354 | union MyUnion {
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]    --> src/main.rs:360:6
[INFO] [stdout]     |
[INFO] [stdout] 360 | enum Color {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func1` is never used
[INFO] [stdout]    --> src/main.rs:370:4
[INFO] [stdout]     |
[INFO] [stdout] 370 | fn func1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func2` is never used
[INFO] [stdout]    --> src/main.rs:375:4
[INFO] [stdout]     |
[INFO] [stdout] 375 | fn func2() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func3` is never used
[INFO] [stdout]    --> src/main.rs:383:4
[INFO] [stdout]     |
[INFO] [stdout] 383 | fn func3(name: String) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func4` is never used
[INFO] [stdout]    --> src/main.rs:388:4
[INFO] [stdout]     |
[INFO] [stdout] 388 | fn func4() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func5` is never used
[INFO] [stdout]    --> src/main.rs:395:4
[INFO] [stdout]     |
[INFO] [stdout] 395 | fn func5(name: String) -> String {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func6` is never used
[INFO] [stdout]    --> src/main.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn func6() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func7` is never used
[INFO] [stdout]    --> src/main.rs:408:4
[INFO] [stdout]     |
[INFO] [stdout] 408 | fn func7(name: &String) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func8` is never used
[INFO] [stdout]    --> src/main.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn func8() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.41s
[INFO] running `Command { std: "docker" "inspect" "44013122fc26aa02442f2c72779ee03c17d4a0752bdb20c1c41e09531e1adf34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44013122fc26aa02442f2c72779ee03c17d4a0752bdb20c1c41e09531e1adf34", kill_on_drop: false }`
[INFO] [stdout] 44013122fc26aa02442f2c72779ee03c17d4a0752bdb20c1c41e09531e1adf34
[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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 178efbc5d932c382d23baef01d194611b74d8ef142799977f23eefd70db2afb4
[INFO] running `Command { std: "docker" "start" "-a" "178efbc5d932c382d23baef01d194611b74d8ef142799977f23eefd70db2afb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling study-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]    --> src/main.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |     let mut m = 0;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/main.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let y: i64 = x as i64;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `name` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut name = "TANAKA";
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_name` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     name = "SASAKI";
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `name` is never read
[INFO] [stdout]    --> src/main.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |     let mut name = String::from("TANAKA");
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/main.rs:203:9
[INFO] [stdout]     |
[INFO] [stdout] 203 |     let q = if n == 1 { "OK!" } else { "NG!" };
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:278:9
[INFO] [stdout]     |
[INFO] [stdout] 278 |     for i in 1..10 {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:300:9
[INFO] [stdout]     |
[INFO] [stdout] 300 |     let b = 123;
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:253:13
[INFO] [stdout]     |
[INFO] [stdout] 253 |         for i in 1..10 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:265:13
[INFO] [stdout]     |
[INFO] [stdout] 265 |         for i in 1..10 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |     let mut m = 0;
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `COUNTER` is never used
[INFO] [stdout]    --> src/main.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | static COUNTER: u32 = 100;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]    --> src/main.rs:329:4
[INFO] [stdout]     |
[INFO] [stdout] 329 | fn add(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `divide` is never used
[INFO] [stdout]    --> src/main.rs:334:4
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn divide(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: union `MyUnion` is never used
[INFO] [stdout]    --> src/main.rs:354:7
[INFO] [stdout]     |
[INFO] [stdout] 354 | union MyUnion {
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Color` is never used
[INFO] [stdout]    --> src/main.rs:360:6
[INFO] [stdout]     |
[INFO] [stdout] 360 | enum Color {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func1` is never used
[INFO] [stdout]    --> src/main.rs:370:4
[INFO] [stdout]     |
[INFO] [stdout] 370 | fn func1() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func2` is never used
[INFO] [stdout]    --> src/main.rs:375:4
[INFO] [stdout]     |
[INFO] [stdout] 375 | fn func2() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func3` is never used
[INFO] [stdout]    --> src/main.rs:383:4
[INFO] [stdout]     |
[INFO] [stdout] 383 | fn func3(name: String) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func4` is never used
[INFO] [stdout]    --> src/main.rs:388:4
[INFO] [stdout]     |
[INFO] [stdout] 388 | fn func4() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func5` is never used
[INFO] [stdout]    --> src/main.rs:395:4
[INFO] [stdout]     |
[INFO] [stdout] 395 | fn func5(name: String) -> String {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func6` is never used
[INFO] [stdout]    --> src/main.rs:401:4
[INFO] [stdout]     |
[INFO] [stdout] 401 | fn func6() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func7` is never used
[INFO] [stdout]    --> src/main.rs:408:4
[INFO] [stdout]     |
[INFO] [stdout] 408 | fn func7(name: &String) {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `func8` is never used
[INFO] [stdout]    --> src/main.rs:414:4
[INFO] [stdout]     |
[INFO] [stdout] 414 | fn func8() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "178efbc5d932c382d23baef01d194611b74d8ef142799977f23eefd70db2afb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "178efbc5d932c382d23baef01d194611b74d8ef142799977f23eefd70db2afb4", kill_on_drop: false }`
[INFO] [stdout] 178efbc5d932c382d23baef01d194611b74d8ef142799977f23eefd70db2afb4
[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=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a03ff2096843c55b525d8d05d19bd78bfcd6aa7023ae0bb465541bec4df2e91e
[INFO] running `Command { std: "docker" "start" "-a" "a03ff2096843c55b525d8d05d19bd78bfcd6aa7023ae0bb465541bec4df2e91e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/main.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let mut m = 0;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/main.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let y: i64 = x as i64;
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `name` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |     let mut name = "TANAKA";
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_name` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]    --> src/main.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     name = "SASAKI";
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `name` is never read
[INFO] [stderr]    --> src/main.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |     let mut name = String::from("TANAKA");
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `q`
[INFO] [stderr]    --> src/main.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let q = if n == 1 { "OK!" } else { "NG!" };
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:278:9
[INFO] [stderr]     |
[INFO] [stderr] 278 |     for i in 1..10 {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:300:9
[INFO] [stderr]     |
[INFO] [stderr] 300 |     let b = 123;
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:253:13
[INFO] [stderr]     |
[INFO] [stderr] 253 |         for i in 1..10 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:265:13
[INFO] [stderr]     |
[INFO] [stderr] 265 |         for i in 1..10 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |     let mut m = 0;
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static `COUNTER` is never used
[INFO] [stderr]    --> src/main.rs:113:8
[INFO] [stderr]     |
[INFO] [stderr] 113 | static COUNTER: u32 = 100;
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]    --> src/main.rs:329:4
[INFO] [stderr]     |
[INFO] [stderr] 329 | fn add(x: i32, y: i32) -> i32 {
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `divide` is never used
[INFO] [stderr]    --> src/main.rs:334:4
[INFO] [stderr]     |
[INFO] [stderr] 334 | fn divide(x: i32, y: i32) -> i32 {
[INFO] [stderr]     |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: union `MyUnion` is never used
[INFO] [stderr]    --> src/main.rs:354:7
[INFO] [stderr]     |
[INFO] [stderr] 354 | union MyUnion {
[INFO] [stderr]     |       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Color` is never used
[INFO] [stderr]    --> src/main.rs:360:6
[INFO] [stderr]     |
[INFO] [stderr] 360 | enum Color {
[INFO] [stderr]     |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func1` is never used
[INFO] [stderr]    --> src/main.rs:370:4
[INFO] [stderr]     |
[INFO] [stderr] 370 | fn func1() {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func2` is never used
[INFO] [stderr]    --> src/main.rs:375:4
[INFO] [stderr]     |
[INFO] [stderr] 375 | fn func2() {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func3` is never used
[INFO] [stderr]    --> src/main.rs:383:4
[INFO] [stderr]     |
[INFO] [stderr] 383 | fn func3(name: String) {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func4` is never used
[INFO] [stderr]    --> src/main.rs:388:4
[INFO] [stderr]     |
[INFO] [stderr] 388 | fn func4() {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func5` is never used
[INFO] [stderr]    --> src/main.rs:395:4
[INFO] [stderr]     |
[INFO] [stderr] 395 | fn func5(name: String) -> String {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func6` is never used
[INFO] [stderr]    --> src/main.rs:401:4
[INFO] [stderr]     |
[INFO] [stderr] 401 | fn func6() {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func7` is never used
[INFO] [stderr]    --> src/main.rs:408:4
[INFO] [stderr]     |
[INFO] [stderr] 408 | fn func7(name: &String) {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `func8` is never used
[INFO] [stderr]    --> src/main.rs:414:4
[INFO] [stderr]     |
[INFO] [stderr] 414 | fn func8() {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `study-rust` (bin "study-rust" test) generated 24 warnings (run `cargo fix --bin "study-rust" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/study_rust-84c8925f83303037)
[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] running `Command { std: "docker" "inspect" "a03ff2096843c55b525d8d05d19bd78bfcd6aa7023ae0bb465541bec4df2e91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03ff2096843c55b525d8d05d19bd78bfcd6aa7023ae0bb465541bec4df2e91e", kill_on_drop: false }`
[INFO] [stdout] a03ff2096843c55b525d8d05d19bd78bfcd6aa7023ae0bb465541bec4df2e91e