[INFO] fetching crate kcp-tokio 0.3.4...
[INFO] testing kcp-tokio-0.3.4 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate kcp-tokio 0.3.4 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate kcp-tokio 0.3.4
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate kcp-tokio 0.3.4
[INFO] tweaked toml for crates.io crate kcp-tokio 0.3.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kcp-tokio 0.3.4 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 kcp-tokio 0.3.4 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3ca03cca42bdda4d3aa833e152b5f1809f0c53b27ecb6728f3f8f95de1a71de9
[INFO] running `Command { std: "docker" "start" "-a" "3ca03cca42bdda4d3aa833e152b5f1809f0c53b27ecb6728f3f8f95de1a71de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ca03cca42bdda4d3aa833e152b5f1809f0c53b27ecb6728f3f8f95de1a71de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ca03cca42bdda4d3aa833e152b5f1809f0c53b27ecb6728f3f8f95de1a71de9", kill_on_drop: false }`
[INFO] [stdout] 3ca03cca42bdda4d3aa833e152b5f1809f0c53b27ecb6728f3f8f95de1a71de9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bca7090e6fc310d1df29bca7554a78747d49aeb465d0a38e8856ae725ade3ae4
[INFO] running `Command { std: "docker" "start" "-a" "bca7090e6fc310d1df29bca7554a78747d49aeb465d0a38e8856ae725ade3ae4", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling tokio-util v0.7.15
[INFO] [stderr]    Compiling kcp-tokio v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `start_background_tasks_unconnected` is never used
[INFO] [stdout]    --> src/async_kcp/stream.rs:283:14
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl KcpStream {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 283 |     async fn start_background_tasks_unconnected(&mut self) -> Result<()> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.64s
[INFO] running `Command { std: "docker" "inspect" "bca7090e6fc310d1df29bca7554a78747d49aeb465d0a38e8856ae725ade3ae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca7090e6fc310d1df29bca7554a78747d49aeb465d0a38e8856ae725ade3ae4", kill_on_drop: false }`
[INFO] [stdout] bca7090e6fc310d1df29bca7554a78747d49aeb465d0a38e8856ae725ade3ae4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a5b010b816008f250e2cef197d81d6431674c6eb0bfee824d2274a0bab5581b9
[INFO] running `Command { std: "docker" "start" "-a" "a5b010b816008f250e2cef197d81d6431674c6eb0bfee824d2274a0bab5581b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling clap_builder v4.5.42
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling tracing-subscriber v0.3.19
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling clap v4.5.42
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling tokio-util v0.7.15
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling kcp-tokio v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stdout] warning: method `start_background_tasks_unconnected` is never used
[INFO] [stdout]    --> src/async_kcp/stream.rs:283:14
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl KcpStream {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 283 |     async fn start_background_tasks_unconnected(&mut self) -> Result<()> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]  --> tests/simple_echo_debug.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tracing::{debug, info};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `connections` is never read
[INFO] [stdout]   --> examples/perf_test_server.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct ServerStats {
[INFO] [stdout]    |        ----------- field in this struct
[INFO] [stdout] 21 |     connections: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ServerStats` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `start_background_tasks_unconnected` is never used
[INFO] [stdout]    --> src/async_kcp/stream.rs:283:14
[INFO] [stdout]     |
[INFO] [stdout]  42 | impl KcpStream {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 283 |     async fn start_background_tasks_unconnected(&mut self) -> Result<()> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 34.89s
[INFO] running `Command { std: "docker" "inspect" "a5b010b816008f250e2cef197d81d6431674c6eb0bfee824d2274a0bab5581b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b010b816008f250e2cef197d81d6431674c6eb0bfee824d2274a0bab5581b9", kill_on_drop: false }`
[INFO] [stdout] a5b010b816008f250e2cef197d81d6431674c6eb0bfee824d2274a0bab5581b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9ed8d9300f9933c49d078f53a78b313edad09b605bf3577abd9213aff7851801
[INFO] running `Command { std: "docker" "start" "-a" "9ed8d9300f9933c49d078f53a78b313edad09b605bf3577abd9213aff7851801", kill_on_drop: false }`
[INFO] [stderr] warning: method `start_background_tasks_unconnected` is never used
[INFO] [stderr]    --> src/async_kcp/stream.rs:283:14
[INFO] [stderr]     |
[INFO] [stderr]  42 | impl KcpStream {
[INFO] [stderr]     | -------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 283 |     async fn start_background_tasks_unconnected(&mut self) -> Result<()> {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kcp-tokio` (lib) generated 1 warning
[INFO] [stderr] warning: unused import: `debug`
[INFO] [stderr]  --> tests/simple_echo_debug.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use tracing::{debug, info};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kcp-tokio` (test "simple_echo_debug") generated 1 warning (run `cargo fix --test "simple_echo_debug"` to apply 1 suggestion)
[INFO] [stderr] warning: field `connections` is never read
[INFO] [stderr]   --> examples/perf_test_server.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | struct ServerStats {
[INFO] [stderr]    |        ----------- field in this struct
[INFO] [stderr] 21 |     connections: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ServerStats` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kcp-tokio` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `kcp-tokio` (example "perf_test_server") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kcp_tokio-1b932d0b1455975f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test metrics::tests::test_connection_monitor ... ok
[INFO] [stdout] test metrics::tests::test_global_metrics ... ok
[INFO] [stdout] test tests::test_version ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic_udp_debug.rs (/opt/rustwide/target/debug/deps/basic_udp_debug-d0bcdb072efd70d0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_basic_udp_debug ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/debug_test.rs (/opt/rustwide/target/debug/deps/debug_test-5c5a3ede333d7f1b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/echo_test.rs (/opt/rustwide/target/debug/deps/echo_test-15ef357797766289)
[INFO] [stdout] test test_basic_udp_echo ... 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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_echo_server_client has been running for over 60 seconds
[INFO] [stdout] test test_multiple_messages has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "9ed8d9300f9933c49d078f53a78b313edad09b605bf3577abd9213aff7851801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ed8d9300f9933c49d078f53a78b313edad09b605bf3577abd9213aff7851801", kill_on_drop: false }`
[INFO] [stdout] 9ed8d9300f9933c49d078f53a78b313edad09b605bf3577abd9213aff7851801