[INFO] fetching crate simple-bst 0.1.2...
[INFO] testing simple-bst-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate simple-bst 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate simple-bst 0.1.2
[INFO] finished tweaking crates.io crate simple-bst 0.1.2
[INFO] tweaked toml for crates.io crate simple-bst 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple-bst 0.1.2 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] crate crates.io crate simple-bst 0.1.2 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-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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18d81bdad5c0367cb860a18b8008c7d02835efbef9e4f0e3ed25d7551e40ce4d
[INFO] running `Command { std: "docker" "start" "-a" "18d81bdad5c0367cb860a18b8008c7d02835efbef9e4f0e3ed25d7551e40ce4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18d81bdad5c0367cb860a18b8008c7d02835efbef9e4f0e3ed25d7551e40ce4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d81bdad5c0367cb860a18b8008c7d02835efbef9e4f0e3ed25d7551e40ce4d", kill_on_drop: false }`
[INFO] [stdout] 18d81bdad5c0367cb860a18b8008c7d02835efbef9e4f0e3ed25d7551e40ce4d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b273c2416b4716d385d4ef2dd8e4b1ef9142b8c1ea71b5901aa40cd822df683a
[INFO] running `Command { std: "docker" "start" "-a" "b273c2416b4716d385d4ef2dd8e4b1ef9142b8c1ea71b5901aa40cd822df683a", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-bst v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "b273c2416b4716d385d4ef2dd8e4b1ef9142b8c1ea71b5901aa40cd822df683a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b273c2416b4716d385d4ef2dd8e4b1ef9142b8c1ea71b5901aa40cd822df683a", kill_on_drop: false }`
[INFO] [stdout] b273c2416b4716d385d4ef2dd8e4b1ef9142b8c1ea71b5901aa40cd822df683a
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b589be8a8700365269686c84b5f3dd67d11f25d275e5656872c13f1ad246d409
[INFO] running `Command { std: "docker" "start" "-a" "b589be8a8700365269686c84b5f3dd67d11f25d275e5656872c13f1ad246d409", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-bst v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "b589be8a8700365269686c84b5f3dd67d11f25d275e5656872c13f1ad246d409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b589be8a8700365269686c84b5f3dd67d11f25d275e5656872c13f1ad246d409", kill_on_drop: false }`
[INFO] [stdout] b589be8a8700365269686c84b5f3dd67d11f25d275e5656872c13f1ad246d409
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9c43b083e8ab9c36e8cae3395309794f8e67654d83c009fc62c29095095fab4d
[INFO] running `Command { std: "docker" "start" "-a" "9c43b083e8ab9c36e8cae3395309794f8e67654d83c009fc62c29095095fab4d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_bst-c7d82763d4c75df4)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::remove_leaf_node ... ok
[INFO] [stdout] test tests::remove_node_with_two_children ... ok
[INFO] [stdout] test tests::remove_node_with_one_child ... ok
[INFO] [stdout] test tests::remove_root_node ... ok
[INFO] [stdout] test tests::test_min_max ... ok
[INFO] [stdout] test tests::test_remove ... ok
[INFO] [stdout] test tests::basic_bst_operations ... ok
[INFO] [stdout] test tests::test_insert_and_search ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_bst
[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" "9c43b083e8ab9c36e8cae3395309794f8e67654d83c009fc62c29095095fab4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c43b083e8ab9c36e8cae3395309794f8e67654d83c009fc62c29095095fab4d", kill_on_drop: false }`
[INFO] [stdout] 9c43b083e8ab9c36e8cae3395309794f8e67654d83c009fc62c29095095fab4d