[INFO] fetching crate serial-async 0.2.0...
[INFO] testing serial-async-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate serial-async 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate serial-async 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serial-async 0.2.0
[INFO] tweaked toml for crates.io crate serial-async 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serial-async 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serial-async 0.2.0 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-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccf4f771bac8b44f1884455d323f1e847c4a051d73d4b98457fd6859bf640395
[INFO] running `Command { std: "docker" "start" "-a" "ccf4f771bac8b44f1884455d323f1e847c4a051d73d4b98457fd6859bf640395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccf4f771bac8b44f1884455d323f1e847c4a051d73d4b98457fd6859bf640395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccf4f771bac8b44f1884455d323f1e847c4a051d73d4b98457fd6859bf640395", kill_on_drop: false }`
[INFO] [stdout] ccf4f771bac8b44f1884455d323f1e847c4a051d73d4b98457fd6859bf640395
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfb6dac3f438ffaf8fe1d0be386e13348778ce745323ae267352fef1bbdc59af
[INFO] running `Command { std: "docker" "start" "-a" "bfb6dac3f438ffaf8fe1d0be386e13348778ce745323ae267352fef1bbdc59af", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling spin_on v0.1.1
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling rdif-base v0.3.3
[INFO] [stderr]    Compiling rdif-serial v0.1.3
[INFO] [stderr]    Compiling serial-async v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.70s
[INFO] running `Command { std: "docker" "inspect" "bfb6dac3f438ffaf8fe1d0be386e13348778ce745323ae267352fef1bbdc59af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfb6dac3f438ffaf8fe1d0be386e13348778ce745323ae267352fef1bbdc59af", kill_on_drop: false }`
[INFO] [stdout] bfb6dac3f438ffaf8fe1d0be386e13348778ce745323ae267352fef1bbdc59af
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfef31e4d367000ddcca36ef85fbc421dac5d7039a21186e632766613e635069
[INFO] running `Command { std: "docker" "start" "-a" "cfef31e4d367000ddcca36ef85fbc421dac5d7039a21186e632766613e635069", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.5.9
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling rdif-base v0.3.3
[INFO] [stderr]    Compiling rdif-serial v0.1.3
[INFO] [stderr]    Compiling serial-async v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 21.20s
[INFO] running `Command { std: "docker" "inspect" "cfef31e4d367000ddcca36ef85fbc421dac5d7039a21186e632766613e635069", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfef31e4d367000ddcca36ef85fbc421dac5d7039a21186e632766613e635069", kill_on_drop: false }`
[INFO] [stdout] cfef31e4d367000ddcca36ef85fbc421dac5d7039a21186e632766613e635069
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27a8db50ab5912b43b5f9da782e965978e2611133f5cb0dc9abc4ee098806dc9
[INFO] running `Command { std: "docker" "start" "-a" "27a8db50ab5912b43b5f9da782e965978e2611133f5cb0dc9abc4ee098806dc9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serial_async-0a005d7bfac17f21)
[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 tests/test.rs (/opt/rustwide/target/debug/deps/test-3a83659aa284f04b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_take ... ok
[INFO] [stdout] test test_tx ... ok
[INFO] [stdout] test test_rx_async ... ok
[INFO] [stdout] test test_tx_async ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serial_async
[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" "27a8db50ab5912b43b5f9da782e965978e2611133f5cb0dc9abc4ee098806dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a8db50ab5912b43b5f9da782e965978e2611133f5cb0dc9abc4ee098806dc9", kill_on_drop: false }`
[INFO] [stdout] 27a8db50ab5912b43b5f9da782e965978e2611133f5cb0dc9abc4ee098806dc9