[INFO] fetching crate cow-cards-rs 0.1.0... [INFO] testing cow-cards-rs-0.1.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate cow-cards-rs 0.1.0 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate cow-cards-rs 0.1.0 [INFO] finished tweaking crates.io crate cow-cards-rs 0.1.0 [INFO] tweaked toml for crates.io crate cow-cards-rs 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate cow-cards-rs 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] 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 14 packages to latest compatible versions [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.2) [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] f4dfe59fce92166b58969f3c7273ea1c8116955d11a5a8c3556831c81f780f43 [INFO] running `Command { std: "docker" "start" "-a" "f4dfe59fce92166b58969f3c7273ea1c8116955d11a5a8c3556831c81f780f43", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f4dfe59fce92166b58969f3c7273ea1c8116955d11a5a8c3556831c81f780f43", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4dfe59fce92166b58969f3c7273ea1c8116955d11a5a8c3556831c81f780f43", kill_on_drop: false }` [INFO] [stdout] f4dfe59fce92166b58969f3c7273ea1c8116955d11a5a8c3556831c81f780f43 [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] 92ce15716f2adb8aaf9d9505401b012e86d16971992cfe3f66cb2464fdc6a32a [INFO] running `Command { std: "docker" "start" "-a" "92ce15716f2adb8aaf9d9505401b012e86d16971992cfe3f66cb2464fdc6a32a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling cow-cards-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: enum `Suit` is never used [INFO] [stdout] --> src/cards.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | enum Suit { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Rank` is never used [INFO] [stdout] --> src/cards.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 12 | enum Rank { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Card` is never constructed [INFO] [stdout] --> src/cards.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | struct Card { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Deck` is never constructed [INFO] [stdout] --> src/cards.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | struct Deck { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `shuffle`, `shuffle_mut`, `draw`, and `draw_mut` are never used [INFO] [stdout] --> src/cards.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 39 | impl Deck { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 40 | pub fn new() -> Deck { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | pub fn shuffle(&self) -> Deck { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn shuffle_mut(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | pub fn draw(&self) -> (Option, Deck) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | pub fn draw_mut(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.88s [INFO] running `Command { std: "docker" "inspect" "92ce15716f2adb8aaf9d9505401b012e86d16971992cfe3f66cb2464fdc6a32a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92ce15716f2adb8aaf9d9505401b012e86d16971992cfe3f66cb2464fdc6a32a", kill_on_drop: false }` [INFO] [stdout] 92ce15716f2adb8aaf9d9505401b012e86d16971992cfe3f66cb2464fdc6a32a [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] 588140812ec7a9c70e5ccc28552407ff308c5087928a5a59da1c2d2026630f5b [INFO] running `Command { std: "docker" "start" "-a" "588140812ec7a9c70e5ccc28552407ff308c5087928a5a59da1c2d2026630f5b", kill_on_drop: false }` [INFO] [stdout] warning: enum `Suit` is never used [INFO] [stdout] --> src/cards.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | enum Suit { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Rank` is never used [INFO] [stdout] --> src/cards.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 12 | enum Rank { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Card` is never constructed [INFO] [stdout] --> src/cards.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | struct Card { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Deck` is never constructed [INFO] [stdout] --> src/cards.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | struct Deck { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `shuffle`, `shuffle_mut`, `draw`, and `draw_mut` are never used [INFO] [stdout] --> src/cards.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 39 | impl Deck { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 40 | pub fn new() -> Deck { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | pub fn shuffle(&self) -> Deck { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn shuffle_mut(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | pub fn draw(&self) -> (Option, Deck) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | pub fn draw_mut(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling cow-cards-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/cards.rs:126:9 [INFO] [stdout] | [INFO] [stdout] 126 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Suit` is never used [INFO] [stdout] --> src/cards.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | enum Suit { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Rank` is never used [INFO] [stdout] --> src/cards.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 12 | enum Rank { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Card` is never constructed [INFO] [stdout] --> src/cards.rs:29:8 [INFO] [stdout] | [INFO] [stdout] 29 | struct Card { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Deck` is never constructed [INFO] [stdout] --> src/cards.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | struct Deck { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `shuffle`, `shuffle_mut`, `draw`, and `draw_mut` are never used [INFO] [stdout] --> src/cards.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 39 | impl Deck { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 40 | pub fn new() -> Deck { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 99 | pub fn shuffle(&self) -> Deck { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 106 | pub fn shuffle_mut(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | pub fn draw(&self) -> (Option, Deck) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | pub fn draw_mut(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s [INFO] running `Command { std: "docker" "inspect" "588140812ec7a9c70e5ccc28552407ff308c5087928a5a59da1c2d2026630f5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "588140812ec7a9c70e5ccc28552407ff308c5087928a5a59da1c2d2026630f5b", kill_on_drop: false }` [INFO] [stdout] 588140812ec7a9c70e5ccc28552407ff308c5087928a5a59da1c2d2026630f5b [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] 420f54dab9c4230ce4fc0ac79120af9b4494ec7785742a261fb8fecf3774e4e8 [INFO] running `Command { std: "docker" "start" "-a" "420f54dab9c4230ce4fc0ac79120af9b4494ec7785742a261fb8fecf3774e4e8", kill_on_drop: false }` [INFO] [stderr] warning: enum `Suit` is never used [INFO] [stderr] --> src/cards.rs:4:6 [INFO] [stderr] | [INFO] [stderr] 4 | enum Suit { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: enum `Rank` is never used [INFO] [stderr] --> src/cards.rs:12:6 [INFO] [stderr] | [INFO] [stderr] 12 | enum Rank { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Card` is never constructed [INFO] [stderr] --> src/cards.rs:29:8 [INFO] [stderr] | [INFO] [stderr] 29 | struct Card { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Deck` is never constructed [INFO] [stderr] --> src/cards.rs:35:8 [INFO] [stderr] | [INFO] [stderr] 35 | struct Deck { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated items `new`, `shuffle`, `shuffle_mut`, `draw`, and `draw_mut` are never used [INFO] [stderr] --> src/cards.rs:40:12 [INFO] [stderr] | [INFO] [stderr] 39 | impl Deck { [INFO] [stderr] | --------- associated items in this implementation [INFO] [stderr] 40 | pub fn new() -> Deck { [INFO] [stderr] | ^^^ [INFO] [stderr] ... [INFO] [stderr] 99 | pub fn shuffle(&self) -> Deck { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 106 | pub fn shuffle_mut(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 111 | pub fn draw(&self) -> (Option, Deck) { [INFO] [stderr] | ^^^^ [INFO] [stderr] ... [INFO] [stderr] 119 | pub fn draw_mut(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/cards.rs:126:9 [INFO] [stderr] | [INFO] [stderr] 126 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `cow-cards-rs` (lib) generated 5 warnings [INFO] [stderr] warning: `cow-cards-rs` (lib test) generated 6 warnings (5 duplicates) (run `cargo fix --lib -p cow-cards-rs --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cow_cards_rs-d818110fb94a4887) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test cards::tests::test_draw ... ok [INFO] [stdout] test cards::tests::test_shuffle ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests cow_cards_rs [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" "420f54dab9c4230ce4fc0ac79120af9b4494ec7785742a261fb8fecf3774e4e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "420f54dab9c4230ce4fc0ac79120af9b4494ec7785742a261fb8fecf3774e4e8", kill_on_drop: false }` [INFO] [stdout] 420f54dab9c4230ce4fc0ac79120af9b4494ec7785742a261fb8fecf3774e4e8