[INFO] fetching crate xo-core 0.2.0-alpha...
[INFO] testing xo-core-0.2.0-alpha against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate xo-core 0.2.0-alpha into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate xo-core 0.2.0-alpha
[INFO] finished tweaking crates.io crate xo-core 0.2.0-alpha
[INFO] tweaked toml for crates.io crate xo-core 0.2.0-alpha written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xo-core 0.2.0-alpha on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xo-core 0.2.0-alpha 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0e9a4936061e6234452fd2372cf04b4e534064e86fd9dc3467aea9089e9a78a
[INFO] running `Command { std: "docker" "start" "-a" "d0e9a4936061e6234452fd2372cf04b4e534064e86fd9dc3467aea9089e9a78a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0e9a4936061e6234452fd2372cf04b4e534064e86fd9dc3467aea9089e9a78a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0e9a4936061e6234452fd2372cf04b4e534064e86fd9dc3467aea9089e9a78a", kill_on_drop: false }`
[INFO] [stdout] d0e9a4936061e6234452fd2372cf04b4e534064e86fd9dc3467aea9089e9a78a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6214a016e1bdeb49c7ff76a3622774c4c3e9280962d4762b076202b5cd61bff
[INFO] running `Command { std: "docker" "start" "-a" "b6214a016e1bdeb49c7ff76a3622774c4c3e9280962d4762b076202b5cd61bff", kill_on_drop: false }`
[INFO] [stderr]    Compiling xo-core v0.2.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "b6214a016e1bdeb49c7ff76a3622774c4c3e9280962d4762b076202b5cd61bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6214a016e1bdeb49c7ff76a3622774c4c3e9280962d4762b076202b5cd61bff", kill_on_drop: false }`
[INFO] [stdout] b6214a016e1bdeb49c7ff76a3622774c4c3e9280962d4762b076202b5cd61bff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f4f257b5a39b491924d651f3428c6d9b385a78a61eae3987e1b78247deccd64
[INFO] running `Command { std: "docker" "start" "-a" "8f4f257b5a39b491924d651f3428c6d9b385a78a61eae3987e1b78247deccd64", kill_on_drop: false }`
[INFO] [stderr]    Compiling xo-core v0.2.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "8f4f257b5a39b491924d651f3428c6d9b385a78a61eae3987e1b78247deccd64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4f257b5a39b491924d651f3428c6d9b385a78a61eae3987e1b78247deccd64", kill_on_drop: false }`
[INFO] [stdout] 8f4f257b5a39b491924d651f3428c6d9b385a78a61eae3987e1b78247deccd64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8f3faaef4a107593b155c827d850030c17dfea7e2d514045e54f59d5458a6c79
[INFO] running `Command { std: "docker" "start" "-a" "8f3faaef4a107593b155c827d850030c17dfea7e2d514045e54f59d5458a6c79", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xo_core-edb1d9c81889982a)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test game_engine::tests::human_vs_human_mode ... ok
[INFO] [stdout] test game_engine::tests::invalid_move_out_of_bounds ... ok
[INFO] [stdout] test game_engine::tests::tie_game ... ok
[INFO] [stdout] test tests::ai_blocks_win ... ok
[INFO] [stdout] test tests::ai_chooses_winning_move ... ok
[INFO] [stdout] test tests::cannot_play_out_of_bounds ... ok
[INFO] [stdout] test game_engine::tests::minimax_ai_blocks_win ... ok
[INFO] [stdout] test tests::tie_game ... ok
[INFO] [stdout] test tests::x_wins_top_row ... ok
[INFO] [stdout] test game_engine::tests::x_can_win ... ok
[INFO] [stdout] test tests::o_wins_diagonal ... ok
[INFO] [stdout] test game_engine::tests::invalid_move_occupied ... ok
[INFO] [stdout] test tests::cannot_play_on_occupied_cell ... ok
[INFO] [stdout] test tests::board_updates_correctly ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/xo_core-0f8285c4ed1d6c88)
[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] [stderr]    Doc-tests xo_core
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/game_engine.rs - game_engine::GameEngine::with_ai (line 93) ... ok
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] test src/game_engine.rs - game_engine::GameEngine::new (line 69) ... ok
[INFO] [stdout] test src/game_engine.rs - game_engine::GameEngine::get_best_move (line 176) ... ok
[INFO] [stdout] test src/game_engine.rs - game_engine::GameEngine::get_best_move (line 183) ... ok
[INFO] [stdout] test src/game_engine.rs - game_engine::GameEngine (line 28) ... ok
[INFO] [stdout] test src/game_engine.rs - game_engine::GameEngine::make_move (line 124) ... ok
[INFO] [stdout] test src/game_engine.rs - game_engine::GameEngine (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.66s; merged doctests compilation took 0.55s
[INFO] running `Command { std: "docker" "inspect" "8f3faaef4a107593b155c827d850030c17dfea7e2d514045e54f59d5458a6c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3faaef4a107593b155c827d850030c17dfea7e2d514045e54f59d5458a6c79", kill_on_drop: false }`
[INFO] [stdout] 8f3faaef4a107593b155c827d850030c17dfea7e2d514045e54f59d5458a6c79