[INFO] fetching crate kcp-tokio 0.3.3...
[INFO] checking kcp-tokio-0.3.3 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate kcp-tokio 0.3.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate kcp-tokio 0.3.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate kcp-tokio 0.3.3
[INFO] tweaked toml for crates.io crate kcp-tokio 0.3.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kcp-tokio 0.3.3 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kcp-tokio 0.3.3 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0851e70411540445e2343ec53b25cfafbe684a5a3a8ca9df7348123d96320c8d
[INFO] running `Command { std: "docker" "start" "-a" "0851e70411540445e2343ec53b25cfafbe684a5a3a8ca9df7348123d96320c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0851e70411540445e2343ec53b25cfafbe684a5a3a8ca9df7348123d96320c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0851e70411540445e2343ec53b25cfafbe684a5a3a8ca9df7348123d96320c8d", kill_on_drop: false }`
[INFO] [stdout] 0851e70411540445e2343ec53b25cfafbe684a5a3a8ca9df7348123d96320c8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc2532439b0b8698aff13b6988a3fe3c5d19022e188d5e9187de97296d38ced0
[INFO] running `Command { std: "docker" "start" "-a" "fc2532439b0b8698aff13b6988a3fe3c5d19022e188d5e9187de97296d38ced0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking clap_builder v4.5.42
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking clap v4.5.42
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-util v0.7.15
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking kcp-tokio v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stderr]     Checking serde_json v1.0.142
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.94s
[INFO] running `Command { std: "docker" "inspect" "fc2532439b0b8698aff13b6988a3fe3c5d19022e188d5e9187de97296d38ced0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc2532439b0b8698aff13b6988a3fe3c5d19022e188d5e9187de97296d38ced0", kill_on_drop: false }`
[INFO] [stdout] fc2532439b0b8698aff13b6988a3fe3c5d19022e188d5e9187de97296d38ced0