[INFO] fetching crate zlink-core 0.1.1...
[INFO] testing zlink-core-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate zlink-core 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate zlink-core 0.1.1
[INFO] finished tweaking crates.io crate zlink-core 0.1.1
[INFO] tweaked toml for crates.io crate zlink-core 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zlink-core 0.1.1 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 zlink-core 0.1.1 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-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] facc5fd24b21c83ba61aceb74edd039ce2a905cce9de128f972d1df834f9a829
[INFO] running `Command { std: "docker" "start" "-a" "facc5fd24b21c83ba61aceb74edd039ce2a905cce9de128f972d1df834f9a829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "facc5fd24b21c83ba61aceb74edd039ce2a905cce9de128f972d1df834f9a829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "facc5fd24b21c83ba61aceb74edd039ce2a905cce9de128f972d1df834f9a829", kill_on_drop: false }`
[INFO] [stdout] facc5fd24b21c83ba61aceb74edd039ce2a905cce9de128f972d1df834f9a829
[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] 66322090e78048af5f93aec1ea3db3a0b73bf8aaadd60a37312fc7e966d69612
[INFO] running `Command { std: "docker" "start" "-a" "66322090e78048af5f93aec1ea3db3a0b73bf8aaadd60a37312fc7e966d69612", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling serde_core v1.0.226
[INFO] [stderr]    Compiling serde v1.0.226
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling ryu v1.0.19
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling serde_derive v1.0.226
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling zlink-macros v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling mayheap v0.2.0
[INFO] [stderr]    Compiling zlink-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.13s
[INFO] running `Command { std: "docker" "inspect" "66322090e78048af5f93aec1ea3db3a0b73bf8aaadd60a37312fc7e966d69612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66322090e78048af5f93aec1ea3db3a0b73bf8aaadd60a37312fc7e966d69612", kill_on_drop: false }`
[INFO] [stdout] 66322090e78048af5f93aec1ea3db3a0b73bf8aaadd60a37312fc7e966d69612
[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] dccc4874e6830cc746a2c05797875a8ccf6e1113788dec8df39bd12237fceb1a
[INFO] running `Command { std: "docker" "start" "-a" "dccc4874e6830cc746a2c05797875a8ccf6e1113788dec8df39bd12237fceb1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling test-log-macros v0.2.18
[INFO] [stderr]    Compiling serde-prefix-all v0.1.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling zlink-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling test-log v0.2.18
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 13.56s
[INFO] running `Command { std: "docker" "inspect" "dccc4874e6830cc746a2c05797875a8ccf6e1113788dec8df39bd12237fceb1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dccc4874e6830cc746a2c05797875a8ccf6e1113788dec8df39bd12237fceb1a", kill_on_drop: false }`
[INFO] [stdout] dccc4874e6830cc746a2c05797875a8ccf6e1113788dec8df39bd12237fceb1a
[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] 907c42b5541677573b524d4b398265e1144632de0c262ee35d1d1fa00e761620
[INFO] running `Command { std: "docker" "start" "-a" "907c42b5541677573b524d4b398265e1144632de0c262ee35d1d1fa00e761620", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/zlink_core-3477d42170737a33)
[INFO] [stdout] 
[INFO] [stdout] running 45 tests
[INFO] [stdout] test call::tests::std::deserialize_call_with_all_flags ... ok
[INFO] [stdout] test call::tests::std::deserialize_call_with_more_true ... ok
[INFO] [stdout] test call::tests::std::deserialize_call_with_extra_fields ... ok
[INFO] [stdout] test call::tests::std::field_order_independence ... ok
[INFO] [stdout] test call::tests::std::deserialize_call_with_method_only ... ok
[INFO] [stdout] test call::tests::std::deserialize_call_with_upgrade_true ... ok
[INFO] [stdout] test call::tests::std::serialize_call_with_all_flags ... ok
[INFO] [stdout] test call::tests::std::serde_flatten_in_variant ... ok
[INFO] [stdout] test call::tests::std::deserialize_call_with_oneway_true ... ok
[INFO] [stdout] test call::tests::std::roundtrip_serialization ... ok
[INFO] [stdout] test call::tests::std::serialize_call_with_method_only ... ok
[INFO] [stdout] test call::tests::std::serialize_call_with_false_flags ... ok
[INFO] [stdout] test call::tests::std::serialize_call_with_oneway_false ... ok
[INFO] [stdout] test call::tests::std::serialize_call_with_more_true ... ok
[INFO] [stdout] test call::tests::std::comprehensive_service_methods ... ok
[INFO] [stdout] test call::tests::std::deserialize_call_with_oneway_false ... ok
[INFO] [stdout] test call::tests::std::serialize_call_with_upgrade_true ... ok
[INFO] [stdout] test connection::chain::tests::heterogeneous_calls ... ok
[INFO] [stdout] test connection::chain::tests::homogeneous_calls ... ok
[INFO] [stdout] test connection::chain::tests::stream_interface_works ... ok
[INFO] [stdout] test connection::chain::tests::more_calls_with_streaming ... ok
[INFO] [stdout] test connection::chain::tests::oneway_calls_no_reply ... ok
[INFO] [stdout] test connection::write_connection::tests::enqueue_null_terminators ... ok
[INFO] [stdout] test server::select_all::tests::all_futures_pending ... ok
[INFO] [stdout] test connection::write_connection::tests::call_pipelining ... ok
[INFO] [stdout] test server::select_all::tests::empty_select_all_returns_pending ... ok
[INFO] [stdout] test connection::write_connection::tests::flush_empty_buffer ... ok
[INFO] [stdout] test connection::write_connection::tests::pipelining_vs_individual_sends ... ok
[INFO] [stdout] test server::select_all::tests::round_robin_fairness ... ok
[INFO] [stdout] test connection::write_connection::tests::enqueue_and_flush ... ok
[INFO] [stdout] test server::select_all::tests::round_robin_with_start_index ... ok
[INFO] [stdout] test connection::write_connection::tests::multiple_flushes ... ok
[INFO] [stdout] test server::select_all::tests::round_robin_wrapping ... ok
[INFO] [stdout] test varlink_service::info::tests::round_trip_serialization ... ok
[INFO] [stdout] test varlink_service::info::tests::serialization ... ok
[INFO] [stdout] test server::select_all::tests::start_index_larger_than_futures ... ok
[INFO] [stdout] test varlink_service::api::tests::error_deserialization ... ok
[INFO] [stdout] test varlink_service::api::tests::error_round_trip_serialization ... ok
[INFO] [stdout] test varlink_service::api::tests::error_serialization ... ok
[INFO] [stdout] test server::select_all::tests::no_start_index_defaults_to_zero ... ok
[INFO] [stdout] test varlink_service::info::tests::deserialization ... ok
[INFO] [stdout] test connection::write_connection::tests::write ... ok
[INFO] [stdout] test connection::write_connection::tests::enqueue_buffer_extension ... ok
[INFO] [stdout] test call::tests::std::serialize_call_with_oneway_true ... ok
[INFO] [stdout] test connection::write_connection::tests::enqueue_after_flush ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 45 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zlink_core
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/connection/read_connection.rs - connection::read_connection::ReadConnection<Read>::receive_reply (line 61) ... ok
[INFO] [stdout] test src/connection/mod.rs - connection::Connection<S>::chain_call (line 240) - compile ... ok
[INFO] [stdout] test src/connection/mod.rs - connection::Connection<S>::chain_call (line 182) - compile ... ok
[INFO] [stdout] test src/connection/write_connection.rs - connection::write_connection::WriteConnection<Write>::send_call (line 50) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "907c42b5541677573b524d4b398265e1144632de0c262ee35d1d1fa00e761620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "907c42b5541677573b524d4b398265e1144632de0c262ee35d1d1fa00e761620", kill_on_drop: false }`
[INFO] [stdout] 907c42b5541677573b524d4b398265e1144632de0c262ee35d1d1fa00e761620