[INFO] fetching crate leetcode-test-utils 0.0.7...
[INFO] testing leetcode-test-utils-0.0.7 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate leetcode-test-utils 0.0.7 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate leetcode-test-utils 0.0.7
[INFO] finished tweaking crates.io crate leetcode-test-utils 0.0.7
[INFO] tweaked toml for crates.io crate leetcode-test-utils 0.0.7 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate leetcode-test-utils 0.0.7 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f80802dfa4a38864d73dbbcc0c9d222441ef0ffc3558db807a391f96818c84b
[INFO] running `Command { std: "docker" "start" "-a" "6f80802dfa4a38864d73dbbcc0c9d222441ef0ffc3558db807a391f96818c84b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f80802dfa4a38864d73dbbcc0c9d222441ef0ffc3558db807a391f96818c84b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f80802dfa4a38864d73dbbcc0c9d222441ef0ffc3558db807a391f96818c84b", kill_on_drop: false }`
[INFO] [stdout] 6f80802dfa4a38864d73dbbcc0c9d222441ef0ffc3558db807a391f96818c84b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cf30141d181146d4144d289d9442a4d2e4485b17464bc7ce5ae052dee5c5d44
[INFO] running `Command { std: "docker" "start" "-a" "9cf30141d181146d4144d289d9442a4d2e4485b17464bc7ce5ae052dee5c5d44", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode-test-utils v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "9cf30141d181146d4144d289d9442a4d2e4485b17464bc7ce5ae052dee5c5d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cf30141d181146d4144d289d9442a4d2e4485b17464bc7ce5ae052dee5c5d44", kill_on_drop: false }`
[INFO] [stdout] 9cf30141d181146d4144d289d9442a4d2e4485b17464bc7ce5ae052dee5c5d44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c64be25396245b5373b6a994e7d2065a101c40fdf645202b3bbf34545a53214b
[INFO] running `Command { std: "docker" "start" "-a" "c64be25396245b5373b6a994e7d2065a101c40fdf645202b3bbf34545a53214b", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode-test-utils v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "c64be25396245b5373b6a994e7d2065a101c40fdf645202b3bbf34545a53214b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c64be25396245b5373b6a994e7d2065a101c40fdf645202b3bbf34545a53214b", kill_on_drop: false }`
[INFO] [stdout] c64be25396245b5373b6a994e7d2065a101c40fdf645202b3bbf34545a53214b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0dcdc71a43b4d70f407db05715aa9adb2d4eead7aabebbfcfaafa8141c83bf0d
[INFO] running `Command { std: "docker" "start" "-a" "0dcdc71a43b4d70f407db05715aa9adb2d4eead7aabebbfcfaafa8141c83bf0d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/leetcode_test_utils-6401e9132913a2c4)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests leetcode_test_utils
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::to_leetcode (line 621) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::len (line 655) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::detach (line 513) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::is_binary_search_tree (line 567) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::to_leetcode_raw (line 586) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::is_balanced (line 534) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::height (line 342) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::TreeBuilder::from_leetcode (line 71) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::T::re_owned (line 487) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::TreeBuilder::from_twos (line 187) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::TreeBuilder::from_leetcode_raw (line 124) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::TreeBuilder::from_post_in (line 263) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::TreeBuilder::from_level_in (line 294) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::TreeBuilder::from_pre_in (line 231) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::new_right (line 751) ... ok
[INFO] [stdout] test src/tree/shortcuts.rs - tree::shortcuts::new_cell (line 14) ... ok
[INFO] [stdout] test src/tree/shortcuts.rs - tree::shortcuts::new_rc (line 30) ... ok
[INFO] [stdout] test src/tree/shortcuts.rs - tree::shortcuts::to_ptr (line 88) ... ok
[INFO] [stdout] test src/tree/shortcuts.rs - tree::shortcuts::val (line 67) ... ok
[INFO] [stdout] test src/tree/shortcuts.rs - tree::shortcuts::to_ptr_mut (line 112) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::new_child (line 771) ... ok
[INFO] [stdout] test src/tree/shortcuts.rs - tree::shortcuts::new_node (line 46) ... ok
[INFO] [stdout] test src/tree/diagnosis.rs - tree::diagnosis::new_left (line 731) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0dcdc71a43b4d70f407db05715aa9adb2d4eead7aabebbfcfaafa8141c83bf0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dcdc71a43b4d70f407db05715aa9adb2d4eead7aabebbfcfaafa8141c83bf0d", kill_on_drop: false }`
[INFO] [stdout] 0dcdc71a43b4d70f407db05715aa9adb2d4eead7aabebbfcfaafa8141c83bf0d