[INFO] fetching crate mrpc-fixed 0.0.8...
[INFO] testing mrpc-fixed-0.0.8 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mrpc-fixed 0.0.8 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mrpc-fixed 0.0.8
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mrpc-fixed 0.0.8
[INFO] tweaked toml for crates.io crate mrpc-fixed 0.0.8 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mrpc-fixed 0.0.8 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 mrpc-fixed 0.0.8 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] 4902b99af1bfbe0c49dcda7f9e0065be83290e31c1b222f4a52e3663ab48fc97
[INFO] running `Command { std: "docker" "start" "-a" "4902b99af1bfbe0c49dcda7f9e0065be83290e31c1b222f4a52e3663ab48fc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4902b99af1bfbe0c49dcda7f9e0065be83290e31c1b222f4a52e3663ab48fc97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4902b99af1bfbe0c49dcda7f9e0065be83290e31c1b222f4a52e3663ab48fc97", kill_on_drop: false }`
[INFO] [stdout] 4902b99af1bfbe0c49dcda7f9e0065be83290e31c1b222f4a52e3663ab48fc97
[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] 40eb0acdcd96f5f855f1a54ec47c8fdf21c7894937991e91da8849163e44b3ce
[INFO] running `Command { std: "docker" "start" "-a" "40eb0acdcd96f5f855f1a54ec47c8fdf21c7894937991e91da8849163e44b3ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling thiserror v2.0.9
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.92
[INFO] [stderr]    Compiling rmp v0.8.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling rmpv v1.3.0
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling thiserror-impl v2.0.9
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]    Compiling tokio v1.42.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling tokio-util v0.7.13
[INFO] [stderr]    Compiling mrpc-fixed v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.47s
[INFO] running `Command { std: "docker" "inspect" "40eb0acdcd96f5f855f1a54ec47c8fdf21c7894937991e91da8849163e44b3ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40eb0acdcd96f5f855f1a54ec47c8fdf21c7894937991e91da8849163e44b3ce", kill_on_drop: false }`
[INFO] [stdout] 40eb0acdcd96f5f855f1a54ec47c8fdf21c7894937991e91da8849163e44b3ce
[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] 0102fdae0504c62fd558aef566c868ba338060411c19e948cd1d9266f0f89aac
[INFO] running `Command { std: "docker" "start" "-a" "0102fdae0504c62fd558aef566c868ba338060411c19e948cd1d9266f0f89aac", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.134
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling clap_lex v0.7.4
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling rustix v0.38.42
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling clap_builder v4.5.23
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling tokio-util v0.7.13
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling tracing-test-macro v0.2.5
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling oorandom v11.1.4
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling mrpc-fixed v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling clap v4.5.23
[INFO] [stderr]    Compiling tempfile v3.14.0
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling msgpack-rpc v0.4.2
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tracing-test v0.2.5
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stdout] warning: unused import: `tokio_util::compat::TokioAsyncWriteCompatExt`
[INFO] [stdout]  --> tests/conformance.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio_util::compat::TokioAsyncWriteCompatExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 42.84s
[INFO] running `Command { std: "docker" "inspect" "0102fdae0504c62fd558aef566c868ba338060411c19e948cd1d9266f0f89aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0102fdae0504c62fd558aef566c868ba338060411c19e948cd1d9266f0f89aac", kill_on_drop: false }`
[INFO] [stdout] 0102fdae0504c62fd558aef566c868ba338060411c19e948cd1d9266f0f89aac
[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] 385c7eaf437957b8ed37324e9d76edd5363f733664300500d7d48fb0802933ca
[INFO] running `Command { std: "docker" "start" "-a" "385c7eaf437957b8ed37324e9d76edd5363f733664300500d7d48fb0802933ca", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `tokio_util::compat::TokioAsyncWriteCompatExt`
[INFO] [stderr]  --> tests/conformance.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use tokio_util::compat::TokioAsyncWriteCompatExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mrpc-fixed` (test "conformance") generated 1 warning (run `cargo fix --test "conformance" -p mrpc-fixed` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mrpc_fixed-d16c7af960d106e1)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test message::tests::test_message_round_trip_with_buffer ... ok
[INFO] [stdout] test message::tests::test_message_idempotence_and_invalid_inputs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-903005c3f753629a)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_method_not_found ... ok
[INFO] [stdout] test test_concurrent_requests ... ok
[INFO] [stdout] test test_client_request_from_connected ... ok
[INFO] [stdout] test test_basic_request_response ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/conformance.rs (/opt/rustwide/target/debug/deps/conformance-2b7c9d1f59bec1a5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_mrpc_compatibility_with_msgpack_rpc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.68s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running tests/pingpong.rs (/opt/rustwide/target/debug/deps/pingpong-4953d919d7274810)
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_pingpong ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.13s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mrpc_fixed
[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" "385c7eaf437957b8ed37324e9d76edd5363f733664300500d7d48fb0802933ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "385c7eaf437957b8ed37324e9d76edd5363f733664300500d7d48fb0802933ca", kill_on_drop: false }`
[INFO] [stdout] 385c7eaf437957b8ed37324e9d76edd5363f733664300500d7d48fb0802933ca