[INFO] fetching crate konig 0.1.5... [INFO] testing konig-0.1.5 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate konig 0.1.5 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate konig 0.1.5 [INFO] finished tweaking crates.io crate konig 0.1.5 [INFO] tweaked toml for crates.io crate konig 0.1.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate konig 0.1.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 10 packages to latest compatible versions [INFO] [stderr] Adding nom v7.1.3 (available: v8.0.0) [INFO] [stderr] Adding thiserror v1.0.69 (available: v2.0.17) [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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8f32750705290e091fcf0f97aba6cccd5265bd13d96d4a8263450515c7c4b434 [INFO] running `Command { std: "docker" "start" "-a" "8f32750705290e091fcf0f97aba6cccd5265bd13d96d4a8263450515c7c4b434", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f32750705290e091fcf0f97aba6cccd5265bd13d96d4a8263450515c7c4b434", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f32750705290e091fcf0f97aba6cccd5265bd13d96d4a8263450515c7c4b434", kill_on_drop: false }` [INFO] [stdout] 8f32750705290e091fcf0f97aba6cccd5265bd13d96d4a8263450515c7c4b434 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f0a109097cd2f4c3756ea62a4ee5124ffd2376300cd16ee43f0e33bec51c5232 [INFO] running `Command { std: "docker" "start" "-a" "f0a109097cd2f4c3756ea62a4ee5124ffd2376300cd16ee43f0e33bec51c5232", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling nom v7.1.3 [INFO] [stderr] Compiling konig v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(associated_type_bounds)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute [INFO] [stdout] | [INFO] [stdout] = help: the feature `associated_type_bounds` has been stable since `1.79.0` and no longer requires an attribute to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:8:1 [INFO] [stdout] | [INFO] [stdout] 8 | #![feature(impl_trait_in_assoc_type)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | #![feature(slice_flatten)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `associated_type_bounds` has been stable since 1.79.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(associated_type_bounds)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `slice_flatten` has been stable since 1.80.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | #![feature(slice_flatten)] [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `flatten` found for struct `Vec<[Option; 8]>` in the current scope [INFO] [stdout] --> src/io/fen.rs:304:19 [INFO] [stdout] | [INFO] [stdout] 304 | files.flatten().try_into().unwrap() [INFO] [stdout] | ^^^^^^^ `Vec<[Option; 8]>` is not an iterator [INFO] [stdout] | [INFO] [stdout] help: call `.into_iter()` first [INFO] [stdout] | [INFO] [stdout] 304 | files.into_iter().flatten().try_into().unwrap() [INFO] [stdout] | ++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `candidate` [INFO] [stdout] --> src/standard/board.rs:107:24 [INFO] [stdout] | [INFO] [stdout] 107 | fn validate(&self, candidate: Self::Move) -> Result { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_candidate` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `candidate` [INFO] [stdout] --> src/standard/board.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 113 | candidate: crate::io::San, [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_candidate` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `candidate` [INFO] [stdout] --> src/standard/board.rs:123:23 [INFO] [stdout] | [INFO] [stdout] 123 | fn process(&self, candidate: Self::LegalMove) -> Self { [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_candidate` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `kind` [INFO] [stdout] --> src/standard/square.rs:28:17 [INFO] [stdout] | [INFO] [stdout] 28 | fn distance(kind: Self::PieceKind, a: Self, b: Self) -> Self::PieceMetricTarget [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_kind` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/standard/square.rs:28:40 [INFO] [stdout] | [INFO] [stdout] 28 | fn distance(kind: Self::PieceKind, a: Self, b: Self) -> Self::PieceMetricTarget [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/standard/square.rs:28:49 [INFO] [stdout] | [INFO] [stdout] 28 | fn distance(kind: Self::PieceKind, a: Self, b: Self) -> Self::PieceMetricTarget [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0554, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `konig` (lib) due to 4 previous errors; 8 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f0a109097cd2f4c3756ea62a4ee5124ffd2376300cd16ee43f0e33bec51c5232", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0a109097cd2f4c3756ea62a4ee5124ffd2376300cd16ee43f0e33bec51c5232", kill_on_drop: false }` [INFO] [stdout] f0a109097cd2f4c3756ea62a4ee5124ffd2376300cd16ee43f0e33bec51c5232