[INFO] fetching crate wpool 0.3.0...
[INFO] testing wpool-0.3.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate wpool 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate wpool 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate wpool 0.3.0
[INFO] tweaked toml for crates.io crate wpool 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wpool 0.3.0 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 crates.io crate wpool 0.3.0 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e096758740ae611105140c7e0b6da4ab0a67dc6ec19d573b57f6a6c7e12ef994
[INFO] running `Command { std: "docker" "start" "-a" "e096758740ae611105140c7e0b6da4ab0a67dc6ec19d573b57f6a6c7e12ef994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e096758740ae611105140c7e0b6da4ab0a67dc6ec19d573b57f6a6c7e12ef994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e096758740ae611105140c7e0b6da4ab0a67dc6ec19d573b57f6a6c7e12ef994", kill_on_drop: false }`
[INFO] [stdout] e096758740ae611105140c7e0b6da4ab0a67dc6ec19d573b57f6a6c7e12ef994
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70f5444537c70db78474cf9d378872c8b3c45e19d5b769bd5716582dbf17f558
[INFO] running `Command { std: "docker" "start" "-a" "70f5444537c70db78474cf9d378872c8b3c45e19d5b769bd5716582dbf17f558", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling wpool v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "70f5444537c70db78474cf9d378872c8b3c45e19d5b769bd5716582dbf17f558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70f5444537c70db78474cf9d378872c8b3c45e19d5b769bd5716582dbf17f558", kill_on_drop: false }`
[INFO] [stdout] 70f5444537c70db78474cf9d378872c8b3c45e19d5b769bd5716582dbf17f558
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bedf1e1ede001c5a5b4c1b7572963d9739cb9c8cdc9236c71661bf23ae4eb490
[INFO] running `Command { std: "docker" "start" "-a" "bedf1e1ede001c5a5b4c1b7572963d9739cb9c8cdc9236c71661bf23ae4eb490", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling zerocopy v0.8.28
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling regex-syntax v0.8.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.53
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling sdd v3.0.10
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling scc v2.4.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling clap v4.5.53
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling wpool v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling zerocopy-derive v0.8.28
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serial_test_derive v3.2.0
[INFO] [stderr]    Compiling serial_test v3.2.0
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 29.62s
[INFO] running `Command { std: "docker" "inspect" "bedf1e1ede001c5a5b4c1b7572963d9739cb9c8cdc9236c71661bf23ae4eb490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bedf1e1ede001c5a5b4c1b7572963d9739cb9c8cdc9236c71661bf23ae4eb490", kill_on_drop: false }`
[INFO] [stdout] bedf1e1ede001c5a5b4c1b7572963d9739cb9c8cdc9236c71661bf23ae4eb490
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 272dbcdcbf5b67d623c66ca685d3e3f67de61c7f6f1180fddf2afc698db5cd86
[INFO] running `Command { std: "docker" "start" "-a" "272dbcdcbf5b67d623c66ca685d3e3f67de61c7f6f1180fddf2afc698db5cd86", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wpool-907e85ba5e176507)
[INFO] [stdout] 
[INFO] [stdout] running 56 tests
[INFO] [stdout] test pacer::tests::test_next_paces_non_paced_fns ... ignored
[INFO] [stdout] test pacer::tests::test_paced_task_respects_delay ... ignored
[INFO] [stdout] test pacer::tests::test_pacer_works ... ignored
[INFO] [stdout] test pacer::tests::test_stop_before_fns_finish_does_not_panic_while_main_thread_alive ... ignored
[INFO] [stdout] test pacer::tests::test_stop_before_fns_finish_panics ... ignored
[INFO] [stdout] test pacer::tests::test_with_wpool ... ignored
[INFO] [stdout] test pacer::tests::test_without_wpool ... ignored
[INFO] [stdout] test tests::test_capture_example_in_readme ... ok
[INFO] [stdout] test tests::test_concurrent_submissions ... ok
[INFO] [stdout] test tests::test_large_amount_of_workers_and_jobs ... ignored
[INFO] [stdout] test tests::test_get_workers_panic_reports ... ok
[INFO] [stdout] test tests::test_basic ... ok
[INFO] [stdout] test tests::test_max_concurrent_workers ... ok
[INFO] [stdout] test tests::test_job_actually_ran ... ok
[INFO] [stdout] test tests::test_long_running_job_continues_after_stop_wait ... ok
[INFO] [stdout] test tests::test_min_workers_greater_than_max_workers - should panic ... ok
[INFO] [stdout] test tests::test_large_amount_of_jobs ... ok
[INFO] [stdout] test tests::test_multiple_stop ... ok
[INFO] [stdout] test tests::test_multiple_stop_wait ... ok
[INFO] [stdout] test tests::test_overflow ... ok
[INFO] [stdout] test tests::test_multiple_pause_resume_resets_resume_channel ... ok
[INFO] [stdout] test tests::test_panic_panic_example_in_readme ... ok
[INFO] [stdout] test tests::test_pause ... ok
[INFO] [stdout] test tests::test_pause_basic ... ok
[INFO] [stdout] test tests::test_example_get_results_from_task ... ok
[INFO] [stdout] test tests::test_pause_resume_resets_resume_channel ... ok
[INFO] [stdout] test tests::test_doc_comment_from_lib ... ok
[INFO] [stdout] test tests::test_pause_waits_for_worker_ack ... ok
[INFO] [stdout] test tests::test_more_jobs_than_max_workers ... ok
[INFO] [stdout] test tests::test_pause_jobs_arent_ran_while_paused ... ok
[INFO] [stdout] test tests::test_serial_test_sanity_1 ... ok
[INFO] [stdout] test tests::test_stop_basic ... ok
[INFO] [stdout] test tests::test_serial_test_sanity_2 ... ok
[INFO] [stdout] test tests::test_stop_wait_basic ... ok
[INFO] [stdout] test tests::test_shutdown_during_pause ... ok
[INFO] [stdout] test tests::test_stop_wait_stress ... ok
[INFO] [stdout] test tests::test_stop_race ... ok
[INFO] [stdout] test tests::test_stop_wait_does_not_abandoned_waiting_queue ... ok
[INFO] [stdout] test tests::test_submit_not_allowed_after_shutdown ... ok
[INFO] [stdout] test tests::test_submit_wait_actually_waits ... ok
[INFO] [stdout] test tests::test_submit_confirm ... ok
[INFO] [stdout] test tests::test_min_workers_basic ... ok
[INFO] [stdout] test tests::test_wait_queue_len_race_2 ... ignored
[INFO] [stdout] test tests::test_worker_count ... ok
[INFO] [stdout] test tests::test_wait_group_done_before_wait ... ok
[INFO] [stdout] test tests::test_wait_group_done_wait_race ... ok
[INFO] [stdout] test tests::test_worker_count_example_in_docs ... ok
[INFO] [stdout] test tests::test_zero_max_workers - should panic ... ok
[INFO] [stdout] test tests::waiting_queue_len_race ... ignored
[INFO] [stdout] test tests::test_stop_abandoned_waiting_queue ... ok
[INFO] [stdout] test tests::test_max_workers_isnt_exceeded ... ok
[INFO] [stdout] test tests::test_overflow_stress ... ok
[INFO] [stdout] test tests::test_idle_worker ... ok
[INFO] [stdout] test tests::test_worker_timeout_during_pause ... ok
[INFO] [stdout] test tests::test_time ... ok
[INFO] [stdout] test tests::test_wq_race ... ok
[INFO] [stderr]      Running unittests bin/flamegraph.rs (/opt/rustwide/target/debug/deps/flamegraph-4c9cc7eb2d390253)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests bin/main.rs (/opt/rustwide/target/debug/deps/wpool_bin-f5b9c03f83ba1c57)
[INFO] [stdout] test result: ok. 46 passed; 0 failed; 10 ignored; 0 measured; 0 filtered out; finished in 51.98s
[INFO] [stderr]    Doc-tests wpool
[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] [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] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] test src/lib.rs - (line 100) ... ok
[INFO] [stdout] test src/pacer/mod.rs - pacer (line 17) ... ignored
[INFO] [stdout] test src/pacer/mod.rs - pacer (line 43) ... ignored
[INFO] [stdout] test src/pacer/mod.rs - pacer (line 69) ... ignored
[INFO] [stdout] test src/lib.rs - WaitGroup::new_with_delta (line 470) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::min_capacity (line 108) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::new (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::max_capacity (line 94) ... ok
[INFO] [stdout] test src/lib.rs - (line 116) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::pause (line 341) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::new_with_min (line 80) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::resume (line 391) ... ok
[INFO] [stdout] test src/lib.rs - (line 202) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::get_workers_panic_info (line 415) ... ok
[INFO] [stdout] test src/lib.rs - (line 152) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::stop (line 296) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::submit_wait (line 178) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::worker_count (line 124) ... ok
[INFO] [stdout] test src/lib.rs - (line 130) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::submit_confirm (line 216) ... ok
[INFO] [stdout] test src/wpool.rs - wpool::WPool::stop_wait (line 256) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 2.04s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 2.63s; merged doctests compilation took 0.59s
[INFO] running `Command { std: "docker" "inspect" "272dbcdcbf5b67d623c66ca685d3e3f67de61c7f6f1180fddf2afc698db5cd86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "272dbcdcbf5b67d623c66ca685d3e3f67de61c7f6f1180fddf2afc698db5cd86", kill_on_drop: false }`
[INFO] [stdout] 272dbcdcbf5b67d623c66ca685d3e3f67de61c7f6f1180fddf2afc698db5cd86
