[INFO] cloning repository https://github.com/anetcher/rust_boj
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anetcher/rust_boj" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanetcher%2Frust_boj", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanetcher%2Frust_boj'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cd9e1dc6f668f6fa18b71f6428411907d69269c
[INFO] checking anetcher/rust_boj against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanetcher%2Frust_boj" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anetcher/rust_boj on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anetcher/rust_boj
[INFO] finished tweaking git repo https://github.com/anetcher/rust_boj
[INFO] tweaked toml for git repo https://github.com/anetcher/rust_boj written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/anetcher/rust_boj already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fb4c40491cf1e3539e50a3abef692306a9e952d144a83ff1a69b894ca9ea2f5
[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" "2fb4c40491cf1e3539e50a3abef692306a9e952d144a83ff1a69b894ca9ea2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fb4c40491cf1e3539e50a3abef692306a9e952d144a83ff1a69b894ca9ea2f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb4c40491cf1e3539e50a3abef692306a9e952d144a83ff1a69b894ca9ea2f5", kill_on_drop: false }`
[INFO] [stdout] 2fb4c40491cf1e3539e50a3abef692306a9e952d144a83ff1a69b894ca9ea2f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 107474f4bfa38f84fd2ba0a99d8492c1c786e7621da9beda1945b2ef5da8c436
[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" "107474f4bfa38f84fd2ba0a99d8492c1c786e7621da9beda1945b2ef5da8c436", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_boj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/print_star/_2442.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for i in 0..N {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/print_star/_2442.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     for i in 0..N {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_self_number`
[INFO] [stdout]  --> src/_4673.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn print_self_number(limit: i32) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `d`
[INFO] [stdout]   --> src/_4673.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn d(n: &i32) -> i32 {
[INFO] [stdout]    |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `accumulate`
[INFO] [stdout]   --> src/_4673.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn accumulate(x: &i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_star`
[INFO] [stdout]  --> src/print_star/_2442.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn print_star() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/print_star/_2442.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut N: i32 = 0;
[INFO] [stdout]   |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_self_number`
[INFO] [stdout]  --> src/_4673.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn print_self_number(limit: i32) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `d`
[INFO] [stdout]   --> src/_4673.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn d(n: &i32) -> i32 {
[INFO] [stdout]    |    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `accumulate`
[INFO] [stdout]   --> src/_4673.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn accumulate(x: &i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_star`
[INFO] [stdout]  --> src/print_star/_2442.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn print_star() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]  --> src/print_star/_2442.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut N: i32 = 0;
[INFO] [stdout]   |             ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "107474f4bfa38f84fd2ba0a99d8492c1c786e7621da9beda1945b2ef5da8c436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "107474f4bfa38f84fd2ba0a99d8492c1c786e7621da9beda1945b2ef5da8c436", kill_on_drop: false }`
[INFO] [stdout] 107474f4bfa38f84fd2ba0a99d8492c1c786e7621da9beda1945b2ef5da8c436