[INFO] cloning repository https://github.com/sacha-renault/chess_engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sacha-renault/chess_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsacha-renault%2Fchess_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsacha-renault%2Fchess_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 357c1fff610d7d55d810c5a409dd9d2dd42d586a
[INFO] testing sacha-renault/chess_engine against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsacha-renault%2Fchess_engine" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sacha-renault/chess_engine
[INFO] finished tweaking git repo https://github.com/sacha-renault/chess_engine
[INFO] tweaked toml for git repo https://github.com/sacha-renault/chess_engine written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sacha-renault/chess_engine on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sacha-renault/chess_engine 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-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e3a1150659535ac66729e2c1fca85d86e7e12bfb7115bb0d2fed1999b4eb987
[INFO] running `Command { std: "docker" "start" "-a" "2e3a1150659535ac66729e2c1fca85d86e7e12bfb7115bb0d2fed1999b4eb987", kill_on_drop: false }`
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[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.57s
[INFO] running `Command { std: "docker" "inspect" "2e3a1150659535ac66729e2c1fca85d86e7e12bfb7115bb0d2fed1999b4eb987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e3a1150659535ac66729e2c1fca85d86e7e12bfb7115bb0d2fed1999b4eb987", kill_on_drop: false }`
[INFO] [stdout] 2e3a1150659535ac66729e2c1fca85d86e7e12bfb7115bb0d2fed1999b4eb987
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31f5cedb1f862ee561c5621c2932e0ac335cf727e0e639c6f400461fcba512de
[INFO] running `Command { std: "docker" "start" "-a" "31f5cedb1f862ee561c5621c2932e0ac335cf727e0e639c6f400461fcba512de", kill_on_drop: false }`
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BasicEvaluator`
[INFO] [stdout]  --> examples/engine.rs:2:60
[INFO] [stdout]   |
[INFO] [stdout] 2 | use chess_engine::prelude::evaluators::{AdvancedEvaluator, BasicEvaluator};
[INFO] [stdout]   |                                                            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `string_from_move`
[INFO] [stdout]  --> examples/engine.rs:5:42
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chess_engine::prelude::{print_board, string_from_move};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> examples/engine.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "31f5cedb1f862ee561c5621c2932e0ac335cf727e0e639c6f400461fcba512de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31f5cedb1f862ee561c5621c2932e0ac335cf727e0e639c6f400461fcba512de", kill_on_drop: false }`
[INFO] [stdout] 31f5cedb1f862ee561c5621c2932e0ac335cf727e0e639c6f400461fcba512de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b2183327b59cada7741c961d5bf87920b7542eeecc69d62ed40e02290c6d972
[INFO] running `Command { std: "docker" "start" "-a" "3b2183327b59cada7741c961d5bf87920b7542eeecc69d62ed40e02290c6d972", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `BasicEvaluator`
[INFO] [stderr]  --> examples/engine.rs:2:60
[INFO] [stderr]   |
[INFO] [stderr] 2 | use chess_engine::prelude::evaluators::{AdvancedEvaluator, BasicEvaluator};
[INFO] [stderr]   |                                                            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string_from_move`
[INFO] [stderr]  --> examples/engine.rs:5:42
[INFO] [stderr]   |
[INFO] [stderr] 5 | use chess_engine::prelude::{print_board, string_from_move};
[INFO] [stderr]   |                                          ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> examples/engine.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chess_engine` (example "engine") generated 3 warnings (run `cargo fix --example "engine" -p chess_engine` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/chess_engine-dfe0eef47c645d9c)
[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 chess_engine
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/game_engine/engine.rs - game_engine::engine::Engine::new (line 46) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/game_engine/engine.rs - game_engine::engine::Engine::new (line 46) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Engine`
[INFO] [stdout]   --> src/game_engine/engine.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 | let engine = Engine::new();
[INFO] [stdout]    |              ^^^^^^ use of undeclared type `Engine`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 46 + use chess_engine::prelude::Engine;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/game_engine/engine.rs - game_engine::engine::Engine::new (line 46)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "3b2183327b59cada7741c961d5bf87920b7542eeecc69d62ed40e02290c6d972", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b2183327b59cada7741c961d5bf87920b7542eeecc69d62ed40e02290c6d972", kill_on_drop: false }`
[INFO] [stdout] 3b2183327b59cada7741c961d5bf87920b7542eeecc69d62ed40e02290c6d972
