[INFO] fetching crate rusty2048-core 0.1.6...
[INFO] testing rusty2048-core-0.1.6 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rusty2048-core 0.1.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rusty2048-core 0.1.6
[INFO] finished tweaking crates.io crate rusty2048-core 0.1.6
[INFO] tweaked toml for crates.io crate rusty2048-core 0.1.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty2048-core 0.1.6 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 rusty2048-core 0.1.6 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 55d9b59b8c3daf995b0e4f99fac894b883f516fedecd5b2b2d1152fc9b996ee2
[INFO] running `Command { std: "docker" "start" "-a" "55d9b59b8c3daf995b0e4f99fac894b883f516fedecd5b2b2d1152fc9b996ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55d9b59b8c3daf995b0e4f99fac894b883f516fedecd5b2b2d1152fc9b996ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d9b59b8c3daf995b0e4f99fac894b883f516fedecd5b2b2d1152fc9b996ee2", kill_on_drop: false }`
[INFO] [stdout] 55d9b59b8c3daf995b0e4f99fac894b883f516fedecd5b2b2d1152fc9b996ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8d4044303456649eef91948ffe21584abbcbbadce3ddf4818d9b6397cc74400c
[INFO] running `Command { std: "docker" "start" "-a" "8d4044303456649eef91948ffe21584abbcbbadce3ddf4818d9b6397cc74400c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.105
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rusty2048-core v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.69s
[INFO] running `Command { std: "docker" "inspect" "8d4044303456649eef91948ffe21584abbcbbadce3ddf4818d9b6397cc74400c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d4044303456649eef91948ffe21584abbcbbadce3ddf4818d9b6397cc74400c", kill_on_drop: false }`
[INFO] [stdout] 8d4044303456649eef91948ffe21584abbcbbadce3ddf4818d9b6397cc74400c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 52be5c95003efda1ae56ef540eae0b4a7e81a7764a0d10d296e406a0b21ddf5b
[INFO] running `Command { std: "docker" "start" "-a" "52be5c95003efda1ae56ef540eae0b4a7e81a7764a0d10d296e406a0b21ddf5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling clap_builder v4.5.44
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling clap v4.5.45
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v1.7.0
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling rusty2048-core v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.97s
[INFO] running `Command { std: "docker" "inspect" "52be5c95003efda1ae56ef540eae0b4a7e81a7764a0d10d296e406a0b21ddf5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52be5c95003efda1ae56ef540eae0b4a7e81a7764a0d10d296e406a0b21ddf5b", kill_on_drop: false }`
[INFO] [stdout] 52be5c95003efda1ae56ef540eae0b4a7e81a7764a0d10d296e406a0b21ddf5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1a381656416c2c59d9a987e4eb120977a1b317c6a3f418026813fd31b26fce82
[INFO] running `Command { std: "docker" "start" "-a" "1a381656416c2c59d9a987e4eb120977a1b317c6a3f418026813fd31b26fce82", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rusty2048_core-49a330b77253e59f)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test board::tests::test_board_operations ... ok
[INFO] [stdout] test board::tests::test_invalid_board_size ... ok
[INFO] [stdout] test board::tests::test_board_creation ... ok
[INFO] [stdout] test game::tests::test_game_creation ... ok
[INFO] [stdout] test rng::tests::test_rng_with_seed ... ok
[INFO] [stdout] test score::tests::test_merge_score_calculation ... ok
[INFO] [stdout] test score::tests::test_score_creation ... ok
[INFO] [stdout] test score::tests::test_score_operations ... ok
[INFO] [stdout] test game::tests::test_basic_move ... ok
[INFO] [stdout] test board::tests::test_tile_operations ... ok
[INFO] [stdout] test game::tests::test_undo ... ok
[INFO] [stdout] test rng::tests::test_tile_value_generation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rusty2048_core
[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" "1a381656416c2c59d9a987e4eb120977a1b317c6a3f418026813fd31b26fce82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a381656416c2c59d9a987e4eb120977a1b317c6a3f418026813fd31b26fce82", kill_on_drop: false }`
[INFO] [stdout] 1a381656416c2c59d9a987e4eb120977a1b317c6a3f418026813fd31b26fce82