[INFO] fetching crate mpmc-async 0.1.7...
[INFO] testing mpmc-async-0.1.7 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mpmc-async 0.1.7 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate mpmc-async 0.1.7
[INFO] finished tweaking crates.io crate mpmc-async 0.1.7
[INFO] tweaked toml for crates.io crate mpmc-async 0.1.7 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mpmc-async 0.1.7 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 39 packages to latest compatible versions
[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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0065394f6612f4a0b36c9404e5685ef73704fdd52a811fac8bc7ad3f5bb33ce4
[INFO] running `Command { std: "docker" "start" "-a" "0065394f6612f4a0b36c9404e5685ef73704fdd52a811fac8bc7ad3f5bb33ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0065394f6612f4a0b36c9404e5685ef73704fdd52a811fac8bc7ad3f5bb33ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0065394f6612f4a0b36c9404e5685ef73704fdd52a811fac8bc7ad3f5bb33ce4", kill_on_drop: false }`
[INFO] [stdout] 0065394f6612f4a0b36c9404e5685ef73704fdd52a811fac8bc7ad3f5bb33ce4
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51f892631d9c2b719089a29a0ec5438801bf933c7a6d9511c34c4d43cb276f09
[INFO] running `Command { std: "docker" "start" "-a" "51f892631d9c2b719089a29a0ec5438801bf933c7a6d9511c34c4d43cb276f09", kill_on_drop: false }`
[INFO] [stderr]    Compiling mpmc-async v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "51f892631d9c2b719089a29a0ec5438801bf933c7a6d9511c34c4d43cb276f09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51f892631d9c2b719089a29a0ec5438801bf933c7a6d9511c34c4d43cb276f09", kill_on_drop: false }`
[INFO] [stdout] 51f892631d9c2b719089a29a0ec5438801bf933c7a6d9511c34c4d43cb276f09
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99a76381f5940fd7be506a6585b8842aafc880f88510b6c68782ebc570c95c9b
[INFO] running `Command { std: "docker" "start" "-a" "99a76381f5940fd7be506a6585b8842aafc880f88510b6c68782ebc570c95c9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]    Compiling mpmc-async v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.82s
[INFO] running `Command { std: "docker" "inspect" "99a76381f5940fd7be506a6585b8842aafc880f88510b6c68782ebc570c95c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a76381f5940fd7be506a6585b8842aafc880f88510b6c68782ebc570c95c9b", kill_on_drop: false }`
[INFO] [stdout] 99a76381f5940fd7be506a6585b8842aafc880f88510b6c68782ebc570c95c9b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7e7db520db6f96cb60450bf2bd4719135e8afc80fdb17e70c265d5722d5f435
[INFO] running `Command { std: "docker" "start" "-a" "d7e7db520db6f96cb60450bf2bd4719135e8afc80fdb17e70c265d5722d5f435", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mpmc_async-b5c4269fe989349b)
[INFO] [stdout] 
[INFO] [stdout] running 31 tests
[INFO] [stdout] test linked_list::tests::add_remove_multiple_drop ... ok
[INFO] [stdout] test linked_list::tests::clone_node_ref ... ok
[INFO] [stdout] test linked_list::tests::into_iter_ref ... ok
[INFO] [stdout] test linked_list::tests::collect_iter ... ok
[INFO] [stdout] test linked_list::tests::iter_mut ... ok
[INFO] [stdout] test linked_list::tests::pop_head_tail ... ok
[INFO] [stdout] test linked_list::tests::push_after ... ok
[INFO] [stdout] test linked_list::tests::push_after_ref ... ok
[INFO] [stdout] test linked_list::tests::push_before ... ok
[INFO] [stdout] test linked_list::tests::push_before_ref ... ok
[INFO] [stdout] test linked_list::tests::push_head ... ok
[INFO] [stdout] test linked_list::tests::push_head_remove_drop ... ok
[INFO] [stdout] test linked_list::tests::push_tail_remove_drop ... ok
[INFO] [stdout] test testing::reserve_many ... ok
[INFO] [stdout] test testing::reserve_owned ... ok
[INFO] [stdout] test testing::reserve_many_drop ... ok
[INFO] [stdout] test testing::send_errors ... ok
[INFO] [stdout] test testing::mpmc_multiple_tasks ... ok
[INFO] [stdout] test testing::mpmc_reserve ... ok
[INFO] [stdout] test testing::mpsc ... ok
[INFO] [stdout] test testing::try_reserve_errors ... ok
[INFO] [stdout] test testing::receiver_close_all_permit_drop ... ok
[INFO] [stdout] test testing::send_receive ... ok
[INFO] [stdout] test testing::recv_future_awoken_but_unused ... ok
[INFO] [stdout] test testing::reserve_errors ... ok
[INFO] [stdout] test testing::try_reserve_unused_permit_and_send ... ok
[INFO] [stdout] test testing::try_reserve_unused_permit_and_other_permit ... ok
[INFO] [stdout] test testing::receiver_close_all ... ok
[INFO] [stdout] test testing::reserve_many_drop_halfway ... ok
[INFO] [stdout] test testing::try_send_errors ... ok
[INFO] [stdout] test testing::mpmc_try_reserve ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 31 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mpmc_async
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - (line 26) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d7e7db520db6f96cb60450bf2bd4719135e8afc80fdb17e70c265d5722d5f435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7e7db520db6f96cb60450bf2bd4719135e8afc80fdb17e70c265d5722d5f435", kill_on_drop: false }`
[INFO] [stdout] d7e7db520db6f96cb60450bf2bd4719135e8afc80fdb17e70c265d5722d5f435