[INFO] cloning repository https://github.com/iamlotus/jthreadpool [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamlotus/jthreadpool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamlotus%2Fjthreadpool", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamlotus%2Fjthreadpool'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 224fcdbafdadcf6168d93f217579cafa3558570c [INFO] testing iamlotus/jthreadpool against beta-2026-04-21 for beta-1.96-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamlotus%2Fjthreadpool" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/iamlotus/jthreadpool [INFO] finished tweaking git repo https://github.com/iamlotus/jthreadpool [INFO] tweaked toml for git repo https://github.com/iamlotus/jthreadpool written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/iamlotus/jthreadpool on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/iamlotus/jthreadpool 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7627aee195adee7ee93d53a75f1ddcb88a807d9966a0e7201f8dd81c50eff9fb [INFO] running `Command { std: "docker" "start" "-a" "7627aee195adee7ee93d53a75f1ddcb88a807d9966a0e7201f8dd81c50eff9fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7627aee195adee7ee93d53a75f1ddcb88a807d9966a0e7201f8dd81c50eff9fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7627aee195adee7ee93d53a75f1ddcb88a807d9966a0e7201f8dd81c50eff9fb", kill_on_drop: false }` [INFO] [stdout] 7627aee195adee7ee93d53a75f1ddcb88a807d9966a0e7201f8dd81c50eff9fb [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1e2d2b51eaebfa5d548b7135e2ac2906114d83ec6850bb1a8e53b05f99522173 [INFO] running `Command { std: "docker" "start" "-a" "1e2d2b51eaebfa5d548b7135e2ac2906114d83ec6850bb1a8e53b05f99522173", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Compiling jthreadpool v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:42:14 [INFO] [stdout] | [INFO] [stdout] 42 | type Job=Box; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 42 | type Job=Box; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:536:54 [INFO] [stdout] | [INFO] [stdout] 536 | let first_time=!self.shared_data.is_shutdown.compare_and_swap(false, true, Ordering::SeqCst); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `err` is never read [INFO] [stdout] --> src/lib.rs:201:5 [INFO] [stdout] | [INFO] [stdout] 200 | pub struct ThreadPoolError { [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] 201 | err: &'static str [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ThreadPoolError` 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 0.66s [INFO] running `Command { std: "docker" "inspect" "1e2d2b51eaebfa5d548b7135e2ac2906114d83ec6850bb1a8e53b05f99522173", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e2d2b51eaebfa5d548b7135e2ac2906114d83ec6850bb1a8e53b05f99522173", kill_on_drop: false }` [INFO] [stdout] 1e2d2b51eaebfa5d548b7135e2ac2906114d83ec6850bb1a8e53b05f99522173 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8d3d2ed063a9db32ee9524ed22c909a7834506ad1709942db680a235357de2d0 [INFO] running `Command { std: "docker" "start" "-a" "8d3d2ed063a9db32ee9524ed22c909a7834506ad1709942db680a235357de2d0", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:42:14 [INFO] [stdout] | [INFO] [stdout] 42 | type Job=Box; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 42 | type Job=Box; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:536:54 [INFO] [stdout] | [INFO] [stdout] 536 | let first_time=!self.shared_data.is_shutdown.compare_and_swap(false, true, Ordering::SeqCst); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `err` is never read [INFO] [stdout] --> src/lib.rs:201:5 [INFO] [stdout] | [INFO] [stdout] 200 | pub struct ThreadPoolError { [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] 201 | err: &'static str [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ThreadPoolError` 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] Compiling jthreadpool v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:42:14 [INFO] [stdout] | [INFO] [stdout] 42 | type Job=Box; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 42 | type Job=Box; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::Atomic::::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:536:54 [INFO] [stdout] | [INFO] [stdout] 536 | let first_time=!self.shared_data.is_shutdown.compare_and_swap(false, true, Ordering::SeqCst); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `err` is never read [INFO] [stdout] --> src/lib.rs:201:5 [INFO] [stdout] | [INFO] [stdout] 200 | pub struct ThreadPoolError { [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] 201 | err: &'static str [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ThreadPoolError` 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 1.12s [INFO] running `Command { std: "docker" "inspect" "8d3d2ed063a9db32ee9524ed22c909a7834506ad1709942db680a235357de2d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d3d2ed063a9db32ee9524ed22c909a7834506ad1709942db680a235357de2d0", kill_on_drop: false }` [INFO] [stdout] 8d3d2ed063a9db32ee9524ed22c909a7834506ad1709942db680a235357de2d0 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e483490619fe3ccf72b9318f3129f95f3b3504f8c3e422602616c6f271bfef8b [INFO] running `Command { std: "docker" "start" "-a" "e483490619fe3ccf72b9318f3129f95f3b3504f8c3e422602616c6f271bfef8b", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:42:14 [INFO] [stderr] | [INFO] [stderr] 42 | type Job=Box; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 42 | type Job=Box; [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated method `std::sync::atomic::Atomic::::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stderr] --> src/lib.rs:536:54 [INFO] [stderr] | [INFO] [stderr] 536 | let first_time=!self.shared_data.is_shutdown.compare_and_swap(false, true, Ordering::SeqCst); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field `err` is never read [INFO] [stderr] --> src/lib.rs:201:5 [INFO] [stderr] | [INFO] [stderr] 200 | pub struct ThreadPoolError { [INFO] [stderr] | --------------- field in this struct [INFO] [stderr] 201 | err: &'static str [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `ThreadPoolError` 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: `jthreadpool` (lib) generated 3 warnings (run `cargo fix --lib -p jthreadpool` to apply 1 suggestion) [INFO] [stderr] warning: `jthreadpool` (lib test) generated 3 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/jthreadpool-61d36501ea20d813) [INFO] [stdout] [INFO] [stdout] running 12 tests [INFO] [stdout] test test::await ... ok [INFO] [stdout] test test::init_with_name_prefix ... ok [INFO] [stdout] test test::shutdown_and_terminated ... ok [INFO] [stdout] test test::work ... ok [INFO] [stdout] test test::count ... ok [INFO] [stdout] test test::init_panic - should panic ... ok [INFO] [stdout] test test::success_and_panic_count ... ok [INFO] [stdout] test test::join ... ok [INFO] [stdout] test test::panic_and_recovery ... ok [INFO] [stdout] test test::panic_and_recovery_1 ... ok [INFO] [stdout] test test::worker_status ... ok [INFO] [stdout] test test::queued_and_executing_count ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s [INFO] [stdout] [INFO] [stderr] Doc-tests jthreadpool [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - ThreadPool::submit (line 469) ... ok [INFO] [stdout] test src/lib.rs - ThreadPool::new (line 399) ... ok [INFO] [stdout] test src/lib.rs - Builder (line 297) ... ok [INFO] [stdout] test src/lib.rs - ThreadPool::size (line 448) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e483490619fe3ccf72b9318f3129f95f3b3504f8c3e422602616c6f271bfef8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e483490619fe3ccf72b9318f3129f95f3b3504f8c3e422602616c6f271bfef8b", kill_on_drop: false }` [INFO] [stdout] e483490619fe3ccf72b9318f3129f95f3b3504f8c3e422602616c6f271bfef8b