[INFO] fetching crate simple_threadpool_func_bio 0.0.1... [INFO] testing simple_threadpool_func_bio-0.0.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate simple_threadpool_func_bio 0.0.1 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate simple_threadpool_func_bio 0.0.1 [INFO] finished tweaking crates.io crate simple_threadpool_func_bio 0.0.1 [INFO] tweaked toml for crates.io crate simple_threadpool_func_bio 0.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate simple_threadpool_func_bio 0.0.1 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 simple_threadpool_func_bio 0.0.1 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-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] de5ceef08acfac69505e05e0c621345c4d960732dfb95ece851199247c2b6f1b [INFO] running `Command { std: "docker" "start" "-a" "de5ceef08acfac69505e05e0c621345c4d960732dfb95ece851199247c2b6f1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de5ceef08acfac69505e05e0c621345c4d960732dfb95ece851199247c2b6f1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de5ceef08acfac69505e05e0c621345c4d960732dfb95ece851199247c2b6f1b", kill_on_drop: false }` [INFO] [stdout] de5ceef08acfac69505e05e0c621345c4d960732dfb95ece851199247c2b6f1b [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] 5dd638211608d5a4c87329e41aa3c800b3e46f4926f771b6a82ed73444a20baa [INFO] running `Command { std: "docker" "start" "-a" "5dd638211608d5a4c87329e41aa3c800b3e46f4926f771b6a82ed73444a20baa", kill_on_drop: false }` [INFO] [stderr] Compiling simple_threadpool_func_bio v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `workers` is never read [INFO] [stdout] --> src/simple_threadpool_func.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ThreadPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 8 | workers: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `thread` are never read [INFO] [stdout] --> src/simple_threadpool_func.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | struct Worker { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 13 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] 14 | thread: thread::JoinHandle<()>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `Command { std: "docker" "inspect" "5dd638211608d5a4c87329e41aa3c800b3e46f4926f771b6a82ed73444a20baa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5dd638211608d5a4c87329e41aa3c800b3e46f4926f771b6a82ed73444a20baa", kill_on_drop: false }` [INFO] [stdout] 5dd638211608d5a4c87329e41aa3c800b3e46f4926f771b6a82ed73444a20baa [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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e5576aa6c075ac989378ae5c1f4252fffd93cd69fc05e95acedbe163e3870747 [INFO] running `Command { std: "docker" "start" "-a" "e5576aa6c075ac989378ae5c1f4252fffd93cd69fc05e95acedbe163e3870747", kill_on_drop: false }` [INFO] [stdout] warning: field `workers` is never read [INFO] [stdout] --> src/simple_threadpool_func.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ThreadPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 8 | workers: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `thread` are never read [INFO] [stdout] --> src/simple_threadpool_func.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | struct Worker { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 13 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] 14 | thread: thread::JoinHandle<()>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling simple_threadpool_func_bio v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `workers` is never read [INFO] [stdout] --> src/simple_threadpool_func.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ThreadPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 8 | workers: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id` and `thread` are never read [INFO] [stdout] --> src/simple_threadpool_func.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 12 | struct Worker { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 13 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] 14 | thread: thread::JoinHandle<()>, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s [INFO] running `Command { std: "docker" "inspect" "e5576aa6c075ac989378ae5c1f4252fffd93cd69fc05e95acedbe163e3870747", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5576aa6c075ac989378ae5c1f4252fffd93cd69fc05e95acedbe163e3870747", kill_on_drop: false }` [INFO] [stdout] e5576aa6c075ac989378ae5c1f4252fffd93cd69fc05e95acedbe163e3870747 [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" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 6a29a7f137de6f1f8bc79d83a0a6f679042a79be445bfbe06529308a5d694caf [INFO] running `Command { std: "docker" "start" "-a" "6a29a7f137de6f1f8bc79d83a0a6f679042a79be445bfbe06529308a5d694caf", kill_on_drop: false }` [INFO] [stderr] warning: field `workers` is never read [INFO] [stderr] --> src/simple_threadpool_func.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 7 | pub struct ThreadPool { [INFO] [stderr] | ---------- field in this struct [INFO] [stderr] 8 | workers: Vec, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: fields `id` and `thread` are never read [INFO] [stderr] --> src/simple_threadpool_func.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 12 | struct Worker { [INFO] [stderr] | ------ fields in this struct [INFO] [stderr] 13 | id: usize, [INFO] [stderr] | ^^ [INFO] [stderr] 14 | thread: thread::JoinHandle<()>, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `simple_threadpool_func_bio` (lib) generated 2 warnings [INFO] [stderr] warning: `simple_threadpool_func_bio` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/simple_threadpool_func_bio-228e13ea9f854007) [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] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_threadpool_func_bio-0c852ef43b167de5) [INFO] [stdout] [INFO] [stderr] Doc-tests simple_threadpool_func_bio [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] [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" "6a29a7f137de6f1f8bc79d83a0a6f679042a79be445bfbe06529308a5d694caf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a29a7f137de6f1f8bc79d83a0a6f679042a79be445bfbe06529308a5d694caf", kill_on_drop: false }` [INFO] [stdout] 6a29a7f137de6f1f8bc79d83a0a6f679042a79be445bfbe06529308a5d694caf