[INFO] fetching crate muxio 0.9.0-alpha...
[INFO] testing muxio-0.9.0-alpha against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate muxio 0.9.0-alpha into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate muxio 0.9.0-alpha
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate muxio 0.9.0-alpha
[INFO] tweaked toml for crates.io crate muxio 0.9.0-alpha written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate muxio 0.9.0-alpha 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] crate crates.io crate muxio 0.9.0-alpha 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d8ef96fe829528d3c7779e981d3c048c50f1a04daa4210ee63519a51f032ecf
[INFO] running `Command { std: "docker" "start" "-a" "4d8ef96fe829528d3c7779e981d3c048c50f1a04daa4210ee63519a51f032ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d8ef96fe829528d3c7779e981d3c048c50f1a04daa4210ee63519a51f032ecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8ef96fe829528d3c7779e981d3c048c50f1a04daa4210ee63519a51f032ecf", kill_on_drop: false }`
[INFO] [stdout] 4d8ef96fe829528d3c7779e981d3c048c50f1a04daa4210ee63519a51f032ecf
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6ba4ad8e3f51d289da15442704626b81da78350cefd7137885522cd5c500ee5
[INFO] running `Command { std: "docker" "start" "-a" "e6ba4ad8e3f51d289da15442704626b81da78350cefd7137885522cd5c500ee5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling muxio v0.9.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.51s
[INFO] running `Command { std: "docker" "inspect" "e6ba4ad8e3f51d289da15442704626b81da78350cefd7137885522cd5c500ee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6ba4ad8e3f51d289da15442704626b81da78350cefd7137885522cd5c500ee5", kill_on_drop: false }`
[INFO] [stdout] e6ba4ad8e3f51d289da15442704626b81da78350cefd7137885522cd5c500ee5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c55b0047910ef3f7020e10a37eb89936b91ae4870917f23e5953fb290b788d1
[INFO] running `Command { std: "docker" "start" "-a" "3c55b0047910ef3f7020e10a37eb89936b91ae4870917f23e5953fb290b788d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling smallvec v1.15.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.5.10
[INFO] [stderr]    Compiling bytemuck v1.23.0
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.29
[INFO] [stderr]    Compiling bitcode_derive v0.6.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling bitcode v0.6.6
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling muxio v0.9.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.81s
[INFO] running `Command { std: "docker" "inspect" "3c55b0047910ef3f7020e10a37eb89936b91ae4870917f23e5953fb290b788d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c55b0047910ef3f7020e10a37eb89936b91ae4870917f23e5953fb290b788d1", kill_on_drop: false }`
[INFO] [stdout] 3c55b0047910ef3f7020e10a37eb89936b91ae4870917f23e5953fb290b788d1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e035e657d5ad4ad2317d58e7ef70be92572ed22b0a8eb82ca096f5a656dc0c6
[INFO] running `Command { std: "docker" "start" "-a" "9e035e657d5ad4ad2317d58e7ef70be92572ed22b0a8eb82ca096f5a656dc0c6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/muxio-9fe5a5bedcdc29d0)
[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/frame_stream_tests.rs (/opt/rustwide/target/debug/deps/frame_stream_tests-026aba5e90d3976e)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test decoder_handles_interleaved_input_order ... ok
[INFO] [stdout] test decoder_reorders_out_of_order_frames ... ok
[INFO] [stdout] test decoder_handles_incomplete_input ... ok
[INFO] [stdout] test encode_decode_roundtrip ... ok
[INFO] [stdout] test encoder_chunks_and_decoder_recovers ... ok
[INFO] [stdout] test encoder_emits_small_final_frame_on_end_stream ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/rpc_dispatcher_prefbuffered_tests.rs (/opt/rustwide/target/debug/deps/rpc_dispatcher_prefbuffered_tests-20ac0f346daeb3c3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_rpc_dispatcher_prebuffered_calls ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/rpc_dispatcher_tests.rs (/opt/rustwide/target/debug/deps/rpc_dispatcher_tests-9bbe82d96a7ba816)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test rpc_dispatcher_call_and_echo_response ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/rpc_respondable_session_tests.rs (/opt/rustwide/target/debug/deps/rpc_respondable_session_tests-8a534b315ad5228c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test rpc_respondable_session_stream_and_reply_roundtrip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/rpc_stream_tests.rs (/opt/rustwide/target/debug/deps/rpc_stream_tests-b540a38b44edb0a2)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test rpc_stream_with_multiple_metadata_entries ... ok
[INFO] [stdout] test rpc_parallel_streams_roundtrip ... ok
[INFO] [stdout] test rpc_session_bidirectional_roundtrip ... ok
[INFO] [stdout] test rpc_complex_shuffled_stream ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/stream_termination_tests.rs (/opt/rustwide/target/debug/deps/stream_termination_tests-b78e0a715eade57f)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test cancel_stream_does_not_process_after_cancellation ... ok
[INFO] [stdout] test end_stream_auto_flushes_buffer ... ok
[INFO] [stdout] test rpc_stream_aborts_on_cancel_frame ... ok
[INFO] [stdout] test rpc_stream_aborts_on_end_frame ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/utils_tests.rs (/opt/rustwide/target/debug/deps/utils_tests-30471e90bb0178ff)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_now_monotonicity ... ok
[INFO] [stdout] test test_now_close_to_system_time ... ok
[INFO] [stdout] test test_increment_u32_id_uniqueness ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests muxio
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/rpc/rpc_internals/rpc_trait.rs - rpc::rpc_internals::rpc_trait::RpcStreamEventDecoderHandler (line 33) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9e035e657d5ad4ad2317d58e7ef70be92572ed22b0a8eb82ca096f5a656dc0c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e035e657d5ad4ad2317d58e7ef70be92572ed22b0a8eb82ca096f5a656dc0c6", kill_on_drop: false }`
[INFO] [stdout] 9e035e657d5ad4ad2317d58e7ef70be92572ed22b0a8eb82ca096f5a656dc0c6