[INFO] cloning repository https://github.com/yudonggeun/rustPractice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yudonggeun/rustPractice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyudonggeun%2FrustPractice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyudonggeun%2FrustPractice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cea0b80a02dfd1b58f598968851a5c4b372a5682
[INFO] checking yudonggeun/rustPractice against master#19f42cb9bb65555e7d95dab7d17573ae6c5d634c for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyudonggeun%2FrustPractice" "/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/yudonggeun/rustPractice on toolchain 19f42cb9bb65555e7d95dab7d17573ae6c5d634c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yudonggeun/rustPractice
[INFO] finished tweaking git repo https://github.com/yudonggeun/rustPractice
[INFO] tweaked toml for git repo https://github.com/yudonggeun/rustPractice written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yudonggeun/rustPractice 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" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43de7877ac77dde05cc39f32f1521cd03f4374fead4cdbeb835705f3defc8a20
[INFO] running `Command { std: "docker" "start" "-a" "43de7877ac77dde05cc39f32f1521cd03f4374fead4cdbeb835705f3defc8a20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43de7877ac77dde05cc39f32f1521cd03f4374fead4cdbeb835705f3defc8a20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43de7877ac77dde05cc39f32f1521cd03f4374fead4cdbeb835705f3defc8a20", kill_on_drop: false }`
[INFO] [stdout] 43de7877ac77dde05cc39f32f1521cd03f4374fead4cdbeb835705f3defc8a20
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+19f42cb9bb65555e7d95dab7d17573ae6c5d634c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbdfffc259996e577ec3c6795978ad7110b852122ba428adebb241154e04deba
[INFO] running `Command { std: "docker" "start" "-a" "fbdfffc259996e577ec3c6795978ad7110b852122ba428adebb241154e04deba", kill_on_drop: false }`
[INFO] [stderr]     Checking algorithm v0.1.0 (/opt/rustwide/workdir/algorithm)
[INFO] [stderr]     Checking practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]  --> algorithm/src/bin/b1010.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     for k in 0..count {
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]  --> algorithm/src/bin/b1010.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     for k in 0..count {
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "fbdfffc259996e577ec3c6795978ad7110b852122ba428adebb241154e04deba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbdfffc259996e577ec3c6795978ad7110b852122ba428adebb241154e04deba", kill_on_drop: false }`
[INFO] [stdout] fbdfffc259996e577ec3c6795978ad7110b852122ba428adebb241154e04deba