[INFO] cloning repository https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSKYTEXCoder%2Fheap-sort-min-heapify-quiz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSKYTEXCoder%2Fheap-sort-min-heapify-quiz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e018a9f44fdf6a169c12022665a9c279513d689
[INFO] testing SKYTEXCoder/heap-sort-min-heapify-quiz against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSKYTEXCoder%2Fheap-sort-min-heapify-quiz" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz
[INFO] finished tweaking git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz
[INFO] tweaked toml for git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz 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" "+beta-2026-01-20" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing SKYTEXCoder/heap-sort-min-heapify-quiz against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSKYTEXCoder%2Fheap-sort-min-heapify-quiz" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz
[INFO] finished tweaking git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz
[INFO] tweaked toml for git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SKYTEXCoder/heap-sort-min-heapify-quiz 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" "+beta-2026-01-20" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc21308bd7931227baac7d16945083dff83c4e35961ca13d529d7d2230011698
[INFO] running `Command { std: "docker" "start" "-a" "fc21308bd7931227baac7d16945083dff83c4e35961ca13d529d7d2230011698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc21308bd7931227baac7d16945083dff83c4e35961ca13d529d7d2230011698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc21308bd7931227baac7d16945083dff83c4e35961ca13d529d7d2230011698", kill_on_drop: false }`
[INFO] [stdout] fc21308bd7931227baac7d16945083dff83c4e35961ca13d529d7d2230011698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 325f3cb0d0e8412507d4a5f0ccd2e5f206ed7c4f62b6158651d9806a73c8e5bd
[INFO] running `Command { std: "docker" "start" "-a" "325f3cb0d0e8412507d4a5f0ccd2e5f206ed7c4f62b6158651d9806a73c8e5bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling heap-sort-min-heapify-quiz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `parent` is never used
[INFO] [stdout]  --> src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn parent(i: usize) -> usize {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "325f3cb0d0e8412507d4a5f0ccd2e5f206ed7c4f62b6158651d9806a73c8e5bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "325f3cb0d0e8412507d4a5f0ccd2e5f206ed7c4f62b6158651d9806a73c8e5bd", kill_on_drop: false }`
[INFO] [stdout] 325f3cb0d0e8412507d4a5f0ccd2e5f206ed7c4f62b6158651d9806a73c8e5bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 967dcbed260b5aa1a516e7be48ea0c8e2e56149ebbc85c3c7e2a978d7e863830
[INFO] running `Command { std: "docker" "start" "-a" "967dcbed260b5aa1a516e7be48ea0c8e2e56149ebbc85c3c7e2a978d7e863830", kill_on_drop: false }`
[INFO] [stderr]    Compiling heap-sort-min-heapify-quiz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `parent` is never used
[INFO] [stdout]  --> src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn parent(i: usize) -> usize {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parent` is never used
[INFO] [stdout]  --> src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn parent(i: usize) -> usize {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "967dcbed260b5aa1a516e7be48ea0c8e2e56149ebbc85c3c7e2a978d7e863830", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "967dcbed260b5aa1a516e7be48ea0c8e2e56149ebbc85c3c7e2a978d7e863830", kill_on_drop: false }`
[INFO] [stdout] 967dcbed260b5aa1a516e7be48ea0c8e2e56149ebbc85c3c7e2a978d7e863830
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82e7648e4718b289f5d551ed82b22be5f2cef0e8676d6eabc85b3000977c564b
[INFO] running `Command { std: "docker" "start" "-a" "82e7648e4718b289f5d551ed82b22be5f2cef0e8676d6eabc85b3000977c564b", kill_on_drop: false }`
[INFO] [stderr] warning: function `parent` is never used
[INFO] [stderr]  --> src/lib.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn parent(i: usize) -> usize {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `heap-sort-min-heapify-quiz` (lib) generated 1 warning
[INFO] [stderr] warning: `heap-sort-min-heapify-quiz` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/heap_sort_min_heapify_quiz-f508fa22c1a298d8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/heap_sort_min_heapify_quiz-6ea6ec7770cb93dc)
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests heap_sort_min_heapify_quiz
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "82e7648e4718b289f5d551ed82b22be5f2cef0e8676d6eabc85b3000977c564b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e7648e4718b289f5d551ed82b22be5f2cef0e8676d6eabc85b3000977c564b", kill_on_drop: false }`
[INFO] [stdout] 82e7648e4718b289f5d551ed82b22be5f2cef0e8676d6eabc85b3000977c564b