[INFO] fetching crate lambda-channel 0.1.3... [INFO] testing lambda-channel-0.1.3 against beta-2026-04-21 for beta-1.96-1 [INFO] extracting crate lambda-channel 0.1.3 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate lambda-channel 0.1.3 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate lambda-channel 0.1.3 [INFO] tweaked toml for crates.io crate lambda-channel 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate lambda-channel 0.1.3 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 lambda-channel 0.1.3 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0926291d9255bac56aff178d752dafb546b072f9f722f720fafb6144e6de0a4d [INFO] running `Command { std: "docker" "start" "-a" "0926291d9255bac56aff178d752dafb546b072f9f722f720fafb6144e6de0a4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0926291d9255bac56aff178d752dafb546b072f9f722f720fafb6144e6de0a4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0926291d9255bac56aff178d752dafb546b072f9f722f720fafb6144e6de0a4d", kill_on_drop: false }` [INFO] [stdout] 0926291d9255bac56aff178d752dafb546b072f9f722f720fafb6144e6de0a4d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b22123011b01c7f67c27e8346a46d81f1c0e884112463d85810ecdc0ef627f3b [INFO] running `Command { std: "docker" "start" "-a" "b22123011b01c7f67c27e8346a46d81f1c0e884112463d85810ecdc0ef627f3b", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [INFO] [stderr] Compiling crossbeam-channel v0.5.15 [INFO] [stderr] Compiling crossbeam-queue v0.3.12 [INFO] [stderr] Compiling bitflags v2.10.0 [INFO] [stderr] Compiling raw-cpuid v11.6.0 [INFO] [stderr] Compiling crossbeam v0.8.4 [INFO] [stderr] Compiling genzero v0.2.0 [INFO] [stderr] Compiling quanta v0.12.6 [INFO] [stderr] Compiling lambda-channel v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.15s [INFO] running `Command { std: "docker" "inspect" "b22123011b01c7f67c27e8346a46d81f1c0e884112463d85810ecdc0ef627f3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b22123011b01c7f67c27e8346a46d81f1c0e884112463d85810ecdc0ef627f3b", kill_on_drop: false }` [INFO] [stdout] b22123011b01c7f67c27e8346a46d81f1c0e884112463d85810ecdc0ef627f3b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 643a4a9a727b4c0ebc34d185ac7ca36ac2d726a4f0bcc98ceb48ed1e40d86128 [INFO] running `Command { std: "docker" "start" "-a" "643a4a9a727b4c0ebc34d185ac7ca36ac2d726a4f0bcc98ceb48ed1e40d86128", kill_on_drop: false }` [INFO] [stderr] Compiling zerocopy v0.8.31 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling lambda-channel v0.1.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 7.72s [INFO] running `Command { std: "docker" "inspect" "643a4a9a727b4c0ebc34d185ac7ca36ac2d726a4f0bcc98ceb48ed1e40d86128", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "643a4a9a727b4c0ebc34d185ac7ca36ac2d726a4f0bcc98ceb48ed1e40d86128", kill_on_drop: false }` [INFO] [stdout] 643a4a9a727b4c0ebc34d185ac7ca36ac2d726a4f0bcc98ceb48ed1e40d86128 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] e84325e73082246cc1a61dd2163aa133538b42d11881347f04d681776bd400cc [INFO] running `Command { std: "docker" "start" "-a" "e84325e73082246cc1a61dd2163aa133538b42d11881347f04d681776bd400cc", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lambda_channel-04e21171e0147100) [INFO] [stdout] [INFO] [stdout] running 32 tests [INFO] [stdout] test channel::tests::test_dependency_receiver_loss ... ok [INFO] [stdout] test channel::tests::test_dependency_receiver_loss_try ... ok [INFO] [stdout] test channel::tests::test_dependency_sender_loss ... ok [INFO] [stdout] test channel::tests::test_dependency_sender_loss_try ... ok [INFO] [stdout] test channel::tests::test_dependency_sender_loss_timeout ... ok [INFO] [stdout] test channel::tests::test_dependency_sender_loss_deadline ... ok [INFO] [stdout] test channel::tests::test_dependency_receiver_loss_timeout ... ok [INFO] [stdout] test channel::tests::test_dependency_receiver_loss_deadline ... ok [INFO] [stdout] test channel::tests::test_dependent_send ... ok [INFO] [stdout] test channel::tests::test_dependent_recv ... ok [INFO] [stdout] test channel::tests::test_crazy_chain_drop_senders ... ok [INFO] [stdout] test channel::tests::test_crazy_chain_drop_receiver ... ok [INFO] [stdout] test channel::tests::test_recv ... ok [INFO] [stdout] test channel::tests::test_dependent_try_send ... ok [INFO] [stdout] test channel::tests::test_dependent_recv_deadline ... ok [INFO] [stdout] test channel::tests::test_send ... ok [INFO] [stdout] test channel::tests::test_dependent_recv_timeout ... ok [INFO] [stdout] test channel::tests::test_dependent_try_recv ... ok [INFO] [stdout] test channel::tests::test_try_recv ... ok [INFO] [stdout] test channel::tests::test_try_send ... ok [INFO] [stdout] test channel::tests::test_dependent_send_deadline ... ok [INFO] [stdout] test thread::tests::drop_input_tx ... ok [INFO] [stdout] test thread::tests::drop_output_rx ... ok [INFO] [stdout] test channel::tests::test_dependent_send_timeout ... ok [INFO] [stdout] test channel::tests::test_recv_deadline ... ok [INFO] [stdout] test channel::tests::test_send_deadline ... ok [INFO] [stdout] test channel::tests::test_send_timeout ... ok [INFO] [stdout] test channel::tests::test_recv_timeout ... ok [INFO] [stdout] test channel::tests::test_crazy_chain_drop_threads ... ok [INFO] [stdout] test thread::tests::single_worker ... ok [INFO] [stdout] test thread::tests::thrash_pool_size ... ok [INFO] [stdout] test thread::tests::many_workers ... ok [INFO] [stderr] Doc-tests lambda_channel [INFO] [stdout] [INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 32 tests [INFO] [stdout] test src/channel.rs - channel::Receiver::capacity (line 715) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::is_full (line 680) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::is_empty (line 661) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::len (line 697) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::iter (line 740) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::same_channel (line 805) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver (line 395) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::recv (line 465) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver (line 416) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::capacity (line 333) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender (line 35) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender (line 15) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::is_empty (line 279) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::try_recv (line 510) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::recv_deadline (line 607) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::recv_timeout (line 550) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::is_full (line 298) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::same_channel (line 353) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::len (line 315) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::try_send (line 129) ... ok [INFO] [stdout] test src/channel.rs - channel::Receiver::try_iter (line 772) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::send_deadline (line 225) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::send_timeout (line 168) ... ok [INFO] [stdout] test src/channel.rs - channel::new_channel (line 895) ... ok [INFO] [stdout] test src/channel.rs - channel::new_channel (line 850) ... ok [INFO] [stdout] test src/channel.rs - channel::Sender::send (line 83) ... ok [INFO] [stdout] test src/lib.rs - new_lambda_sink (line 107) ... ok [INFO] [stdout] test src/channel.rs - channel::new_channel (line 872) ... ok [INFO] [stdout] test src/channel.rs - channel::new_channel_with_dependency (line 948) ... ok [INFO] [stdout] test src/lib.rs - new_lambda_sink_with_input_from (line 136) ... ok [INFO] [stdout] test src/lib.rs - new_lambda_channel_with_input_and_output (line 58) ... ok [INFO] [stdout] test src/lib.rs - new_lambda_channel (line 13) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.58s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e84325e73082246cc1a61dd2163aa133538b42d11881347f04d681776bd400cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e84325e73082246cc1a61dd2163aa133538b42d11881347f04d681776bd400cc", kill_on_drop: false }` [INFO] [stdout] e84325e73082246cc1a61dd2163aa133538b42d11881347f04d681776bd400cc