[INFO] fetching crate mqb 0.4.0... [INFO] testing mqb-0.4.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate mqb 0.4.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate mqb 0.4.0 [INFO] finished tweaking crates.io crate mqb 0.4.0 [INFO] tweaked toml for crates.io crate mqb 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mqb 0.4.0 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 mqb 0.4.0 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 52ff4f5d39832a7d2e2e74a95f88c93842fa1a73828b0a7a2e2e8b20ab6d7356 [INFO] running `Command { std: "docker" "start" "-a" "52ff4f5d39832a7d2e2e74a95f88c93842fa1a73828b0a7a2e2e8b20ab6d7356", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "52ff4f5d39832a7d2e2e74a95f88c93842fa1a73828b0a7a2e2e8b20ab6d7356", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52ff4f5d39832a7d2e2e74a95f88c93842fa1a73828b0a7a2e2e8b20ab6d7356", kill_on_drop: false }` [INFO] [stdout] 52ff4f5d39832a7d2e2e74a95f88c93842fa1a73828b0a7a2e2e8b20ab6d7356 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] be10fcaf35fb3ed0a4be6266bd5181adbbed2228e355437d0eac2475e09b257d [INFO] running `Command { std: "docker" "start" "-a" "be10fcaf35fb3ed0a4be6266bd5181adbbed2228e355437d0eac2475e09b257d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling unicode-ident v1.0.19 [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling futures-core v0.3.31 [INFO] [stderr] Compiling futures-sink v0.3.31 [INFO] [stderr] Compiling futures-io v0.3.31 [INFO] [stderr] Compiling parking v2.2.1 [INFO] [stderr] Compiling thiserror v2.0.16 [INFO] [stderr] Compiling saa v4.3.2 [INFO] [stderr] Compiling sdd v4.1.1 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling scc v3.1.2 [INFO] [stderr] Compiling concurrent-queue v2.5.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling crossbeam-channel v0.5.15 [INFO] [stderr] Compiling crossbeam-queue v0.3.12 [INFO] [stderr] Compiling event-listener v5.4.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling crossbeam v0.8.4 [INFO] [stderr] Compiling event-listener-strategy v0.5.4 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling thiserror-impl v2.0.16 [INFO] [stderr] Compiling pin-project-internal v1.1.10 [INFO] [stderr] Compiling pin-project v1.1.10 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling mqb v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.84s [INFO] running `Command { std: "docker" "inspect" "be10fcaf35fb3ed0a4be6266bd5181adbbed2228e355437d0eac2475e09b257d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be10fcaf35fb3ed0a4be6266bd5181adbbed2228e355437d0eac2475e09b257d", kill_on_drop: false }` [INFO] [stdout] be10fcaf35fb3ed0a4be6266bd5181adbbed2228e355437d0eac2475e09b257d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0db823896db670706b56eeaa42405aa4fcc9fc5c16a3f43360bc0996bf07fae6 [INFO] running `Command { std: "docker" "start" "-a" "0db823896db670706b56eeaa42405aa4fcc9fc5c16a3f43360bc0996bf07fae6", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling cfg-if v1.0.3 [INFO] [stderr] Compiling serde_core v1.0.227 [INFO] [stderr] Compiling serde v1.0.227 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling rayon-core v1.13.0 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling regex-syntax v0.8.6 [INFO] [stderr] Compiling serde_derive v1.0.227 [INFO] [stderr] Compiling ciborium-io v0.2.2 [INFO] [stderr] Compiling plotters-backend v0.3.7 [INFO] [stderr] Compiling half v2.6.0 [INFO] [stderr] Compiling itertools v0.13.0 [INFO] [stderr] Compiling plotters-svg v0.3.7 [INFO] [stderr] Compiling clap_builder v4.5.48 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling cast v0.3.0 [INFO] [stderr] Compiling anes v0.1.6 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Compiling oorandom v11.1.5 [INFO] [stderr] Compiling futures-test v0.3.31 [INFO] [stderr] Compiling easy-parallel v3.3.1 [INFO] [stderr] Compiling ciborium-ll v0.2.2 [INFO] [stderr] Compiling crossbeam-epoch v0.9.18 [INFO] [stderr] Compiling concurrent-queue v2.5.0 [INFO] [stderr] Compiling crossbeam-queue v0.3.12 [INFO] [stderr] Compiling crossbeam-channel v0.5.15 [INFO] [stderr] Compiling event-listener v5.4.1 [INFO] [stderr] Compiling crossbeam-deque v0.8.6 [INFO] [stderr] Compiling event-listener-strategy v0.5.4 [INFO] [stderr] Compiling crossbeam v0.8.4 [INFO] [stderr] Compiling mqb v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling rayon v1.11.0 [INFO] [stderr] Compiling plotters v0.3.7 [INFO] [stderr] Compiling getrandom v0.3.3 [INFO] [stderr] Compiling socket2 v0.6.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.6 [INFO] [stderr] Compiling mio v1.0.4 [INFO] [stderr] Compiling num_cpus v1.17.0 [INFO] [stderr] Compiling criterion-plot v0.6.0 [INFO] [stderr] Compiling regex-automata v0.4.11 [INFO] [stderr] Compiling rand_core v0.9.3 [INFO] [stderr] Compiling parking_lot v0.12.4 [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling tokio v1.47.1 [INFO] [stderr] Compiling rand v0.9.2 [INFO] [stderr] Compiling clap v4.5.48 [INFO] [stderr] Compiling ciborium v0.2.2 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling regex v1.11.3 [INFO] [stderr] Compiling criterion v0.7.0 [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 31.73s [INFO] running `Command { std: "docker" "inspect" "0db823896db670706b56eeaa42405aa4fcc9fc5c16a3f43360bc0996bf07fae6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0db823896db670706b56eeaa42405aa4fcc9fc5c16a3f43360bc0996bf07fae6", kill_on_drop: false }` [INFO] [stdout] 0db823896db670706b56eeaa42405aa4fcc9fc5c16a3f43360bc0996bf07fae6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 91fad0d530f73299d65af3c96e1111b0d9fe22d0eebb1d72ff2301e971b9153a [INFO] running `Command { std: "docker" "start" "-a" "91fad0d530f73299d65af3c96e1111b0d9fe22d0eebb1d72ff2301e971b9153a", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mqb-cd9ca02ee7342b41) [INFO] [stdout] [INFO] [stdout] running 16 tests [INFO] [stdout] test tests::bounded ... ok [INFO] [stdout] test tests::bounded_blocking ... ok [INFO] [stdout] test tests::bounded_stream ... ok [INFO] [stdout] test tests::close_for ... ok [INFO] [stdout] test tests::sub_unsub ... ok [INFO] [stdout] test tests::unbounded ... ok [INFO] [stdout] test tests::unbounded_blocking ... ok [INFO] [stdout] test tests::unbounded_stream ... ok [INFO] [stdout] test tests::close ... ok [INFO] [stdout] test tests::check_bounds ... ok [INFO] [stdout] test tests::unbounded_parallel ... ok [INFO] [stdout] test tests::unbounded_parallel_stream ... ok [INFO] [stdout] test tests::unbounded_parallel_blocking ... ok [INFO] [stdout] test tests::bounded_parallel_blocking ... ok [INFO] [stdout] test tests::bounded_parallel ... ok [INFO] [stdout] test tests::bounded_parallel_stream ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.30s [INFO] [stdout] [INFO] [stderr] Doc-tests mqb [INFO] [stdout] [INFO] [stdout] running 26 tests [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send (line 253) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send (line 264) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send (line 277) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send (line 240) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send_blocking (line 311) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::try_send (line 195) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send_blocking (line 342) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send_blocking (line 322) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::try_send (line 215) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::is_empty (line 747) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::recv (line 814) ... ok [INFO] [stdout] test src/lib.rs - (line 45) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::tag (line 907) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::len (line 727) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::try_send (line 184) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::recv (line 827) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::recv_blocking (line 867) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::send_blocking (line 331) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::try_recv (line 786) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::recv_blocking (line 889) ... ok [INFO] [stdout] test src/lib.rs - MessageQueueBroker::try_send (line 204) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::try_recv (line 797) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::recv (line 840) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::recv_blocking (line 878) ... ok [INFO] [stdout] test src/lib.rs - (line 13) ... ok [INFO] [stdout] test src/lib.rs - Subscriber::try_recv (line 775) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] all doctests ran in 0.95s; merged doctests compilation took 0.93s [INFO] running `Command { std: "docker" "inspect" "91fad0d530f73299d65af3c96e1111b0d9fe22d0eebb1d72ff2301e971b9153a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91fad0d530f73299d65af3c96e1111b0d9fe22d0eebb1d72ff2301e971b9153a", kill_on_drop: false }` [INFO] [stdout] 91fad0d530f73299d65af3c96e1111b0d9fe22d0eebb1d72ff2301e971b9153a