[INFO] cloning repository https://github.com/umm-csci-3412-2025/sorting-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/umm-csci-3412-2025/sorting-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumm-csci-3412-2025%2Fsorting-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumm-csci-3412-2025%2Fsorting-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04da48e5360b2f556cab3cf0ec19e34cfb6a50eb
[INFO] checking umm-csci-3412-2025/sorting-in-rust against try#b152f5575a2ac7126ae0019e4e679abe9399213e for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fumm-csci-3412-2025%2Fsorting-in-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/umm-csci-3412-2025/sorting-in-rust
[INFO] finished tweaking git repo https://github.com/umm-csci-3412-2025/sorting-in-rust
[INFO] tweaked toml for git repo https://github.com/umm-csci-3412-2025/sorting-in-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/umm-csci-3412-2025/sorting-in-rust on toolchain b152f5575a2ac7126ae0019e4e679abe9399213e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/umm-csci-3412-2025/sorting-in-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" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180
[INFO] running `Command { std: "docker" "start" "7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking sorting-in-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ys`
[INFO] [stdout]    --> src/main.rs:171:75
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn merge<T: PartialOrd + std::marker::Copy + std::fmt::Debug>(xs: Vec<T>, ys: Vec<T>) -> Vec<T> {
[INFO] [stdout]     |                                                                           ^^ help: if this is intentional, prefix it with an underscore: `_ys`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ys`
[INFO] [stdout]    --> src/main.rs:171:75
[INFO] [stdout]     |
[INFO] [stdout] 171 | fn merge<T: PartialOrd + std::marker::Copy + std::fmt::Debug>(xs: Vec<T>, ys: Vec<T>) -> Vec<T> {
[INFO] [stdout]     |                                                                           ^^ help: if this is intentional, prefix it with an underscore: `_ys`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `Command { std: "docker" "inspect" "7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180", kill_on_drop: false }`
[INFO] [stdout] 7bb8c675765ba760b6ae58ed66922dcf9218e74921f02a8acacf9fb6c2119180
