[INFO] fetching crate leko-wordle-solver-example 0.1.0...
[INFO] testing leko-wordle-solver-example-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate leko-wordle-solver-example 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate leko-wordle-solver-example 0.1.0
[INFO] finished tweaking crates.io crate leko-wordle-solver-example 0.1.0
[INFO] tweaked toml for crates.io crate leko-wordle-solver-example 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate leko-wordle-solver-example 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 leko-wordle-solver-example 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] db3be02be4c5ea38feeb0add3226f34685347c9c9a30f32dfffc9d8058af81b8
[INFO] running `Command { std: "docker" "start" "-a" "db3be02be4c5ea38feeb0add3226f34685347c9c9a30f32dfffc9d8058af81b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db3be02be4c5ea38feeb0add3226f34685347c9c9a30f32dfffc9d8058af81b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db3be02be4c5ea38feeb0add3226f34685347c9c9a30f32dfffc9d8058af81b8", kill_on_drop: false }`
[INFO] [stdout] db3be02be4c5ea38feeb0add3226f34685347c9c9a30f32dfffc9d8058af81b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 53f960c32cc03aa7f52fa5ed6de55dad3f3b757b8b0306ceefd06c7637c8afeb
[INFO] running `Command { std: "docker" "start" "-a" "53f960c32cc03aa7f52fa5ed6de55dad3f3b757b8b0306ceefd06c7637c8afeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling leko-wordle-solver-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> main.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn guess(history: &Vec<History>) -> &'static str {
[INFO] [stdout]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `word` and `response` are never read
[INFO] [stdout]   --> main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct History {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 12 |     word: Vec<char>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     response: Vec<Response>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `History` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "53f960c32cc03aa7f52fa5ed6de55dad3f3b757b8b0306ceefd06c7637c8afeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53f960c32cc03aa7f52fa5ed6de55dad3f3b757b8b0306ceefd06c7637c8afeb", kill_on_drop: false }`
[INFO] [stdout] 53f960c32cc03aa7f52fa5ed6de55dad3f3b757b8b0306ceefd06c7637c8afeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 89a755125a046cdb3818c260653744ad13abdbd5e1bfd5d5cb69362a1a4455f0
[INFO] running `Command { std: "docker" "start" "-a" "89a755125a046cdb3818c260653744ad13abdbd5e1bfd5d5cb69362a1a4455f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling leko-wordle-solver-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `history`
[INFO] [stdout]   --> main.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn guess(history: &Vec<History>) -> &'static str {
[INFO] [stdout]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `word` and `response` are never read
[INFO] [stdout]   --> main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct History {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 12 |     word: Vec<char>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     response: Vec<Response>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `History` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "89a755125a046cdb3818c260653744ad13abdbd5e1bfd5d5cb69362a1a4455f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89a755125a046cdb3818c260653744ad13abdbd5e1bfd5d5cb69362a1a4455f0", kill_on_drop: false }`
[INFO] [stdout] 89a755125a046cdb3818c260653744ad13abdbd5e1bfd5d5cb69362a1a4455f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ef07798d5128c4928c6eafab0d61e5d1b65d4d0513c949d1d549674a4b0ee8b9
[INFO] running `Command { std: "docker" "start" "-a" "ef07798d5128c4928c6eafab0d61e5d1b65d4d0513c949d1d549674a4b0ee8b9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `history`
[INFO] [stdout] 
[INFO] [stderr]   --> main.rs:16:10
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 16 | fn guess(history: &Vec<History>) -> &'static str {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_history`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `word` and `response` are never read
[INFO] [stderr]   --> main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | struct History {
[INFO] [stderr]    |        ------- fields in this struct
[INFO] [stderr] 12 |     word: Vec<char>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 13 |     response: Vec<Response>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `History` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `leko-wordle-solver-example` (bin "wordle-solver" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests main.rs (/opt/rustwide/target/debug/deps/wordle_solver-e10b0c27792971b8)
[INFO] running `Command { std: "docker" "inspect" "ef07798d5128c4928c6eafab0d61e5d1b65d4d0513c949d1d549674a4b0ee8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef07798d5128c4928c6eafab0d61e5d1b65d4d0513c949d1d549674a4b0ee8b9", kill_on_drop: false }`
[INFO] [stdout] ef07798d5128c4928c6eafab0d61e5d1b65d4d0513c949d1d549674a4b0ee8b9