[INFO] fetching crate lumifox_chess 0.1.0...
[INFO] testing lumifox_chess-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate lumifox_chess 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate lumifox_chess 0.1.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lumifox_chess 0.1.0
[INFO] tweaked toml for crates.io crate lumifox_chess 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lumifox_chess 0.1.0 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 lumifox_chess 0.1.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 10ef2cf71052056c6d46cb4ff1e051aa62d2ce0e92376513cb3122d95f8c3dcf
[INFO] running `Command { std: "docker" "start" "-a" "10ef2cf71052056c6d46cb4ff1e051aa62d2ce0e92376513cb3122d95f8c3dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10ef2cf71052056c6d46cb4ff1e051aa62d2ce0e92376513cb3122d95f8c3dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10ef2cf71052056c6d46cb4ff1e051aa62d2ce0e92376513cb3122d95f8c3dcf", kill_on_drop: false }`
[INFO] [stdout] 10ef2cf71052056c6d46cb4ff1e051aa62d2ce0e92376513cb3122d95f8c3dcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e6bed3b44211354d68310574b18fb9259a838d8079af23a23c525d769a2320a8
[INFO] running `Command { std: "docker" "start" "-a" "e6bed3b44211354d68310574b18fb9259a838d8079af23a23c525d769a2320a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling lumifox_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "e6bed3b44211354d68310574b18fb9259a838d8079af23a23c525d769a2320a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6bed3b44211354d68310574b18fb9259a838d8079af23a23c525d769a2320a8", kill_on_drop: false }`
[INFO] [stdout] e6bed3b44211354d68310574b18fb9259a838d8079af23a23c525d769a2320a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c9ae86a2b2876e8c7f507463c44e081cac2a60e5fad01868465aa728078fc7d1
[INFO] running `Command { std: "docker" "start" "-a" "c9ae86a2b2876e8c7f507463c44e081cac2a60e5fad01868465aa728078fc7d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling lumifox_chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> examples/legal_play.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / fn panic_handler(info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout] 31 | |   // In bare metal environment, handle panic gracefully
[INFO] [stdout] 32 | |   loop {
[INFO] [stdout] ...  |
[INFO] [stdout] 35 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `legal_play` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2a1757997f179349.so, /opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2a1757997f179349.rlib
[INFO] [stdout]    = note: second definition in the local crate (`legal_play`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lumifox_chess` (example "legal_play") due to 1 previous error
[INFO] [stdout] error[E0599]: no method named `print_board` found for struct `GameData` in the current scope
[INFO] [stdout]    --> examples/attacked.rs:121:8
[INFO] [stdout]     |
[INFO] [stdout] 121 |   game.print_board();
[INFO] [stdout]     |        ^^^^^^^^^^^ method not found in `GameData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lumifox_chess` (example "attacked") due to 1 previous error
[INFO] [stdout] error[E0599]: no method named `print_board` found for struct `GameData` in the current scope
[INFO] [stdout]   --> examples/print.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |   game.print_board();
[INFO] [stdout]    |        ^^^^^^^^^^^ method not found in `GameData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `print_board` found for struct `GameData` in the current scope
[INFO] [stdout]   --> examples/print.rs:75:10
[INFO] [stdout]    |
[INFO] [stdout] 75 |     game.print_board();
[INFO] [stdout]    |          ^^^^^^^^^^^ method not found in `GameData`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lumifox_chess` (example "print") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c9ae86a2b2876e8c7f507463c44e081cac2a60e5fad01868465aa728078fc7d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ae86a2b2876e8c7f507463c44e081cac2a60e5fad01868465aa728078fc7d1", kill_on_drop: false }`
[INFO] [stdout] c9ae86a2b2876e8c7f507463c44e081cac2a60e5fad01868465aa728078fc7d1