[INFO] cloning repository https://github.com/redsnow1992/codecrafters-kafka-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redsnow1992/codecrafters-kafka-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredsnow1992%2Fcodecrafters-kafka-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredsnow1992%2Fcodecrafters-kafka-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fc966d3d1412061ffd68e2c72611245ae82f3ef
[INFO] testing redsnow1992/codecrafters-kafka-rust against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredsnow1992%2Fcodecrafters-kafka-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/redsnow1992/codecrafters-kafka-rust
[INFO] finished tweaking git repo https://github.com/redsnow1992/codecrafters-kafka-rust
[INFO] tweaked toml for git repo https://github.com/redsnow1992/codecrafters-kafka-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/redsnow1992/codecrafters-kafka-rust 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 git repo https://github.com/redsnow1992/codecrafters-kafka-rust 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 663bf56fa24dac2087868a24e7f443ff7118e68db37286971e20085e5d997d96
[INFO] running `Command { std: "docker" "start" "-a" "663bf56fa24dac2087868a24e7f443ff7118e68db37286971e20085e5d997d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "663bf56fa24dac2087868a24e7f443ff7118e68db37286971e20085e5d997d96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663bf56fa24dac2087868a24e7f443ff7118e68db37286971e20085e5d997d96", kill_on_drop: false }`
[INFO] [stdout] 663bf56fa24dac2087868a24e7f443ff7118e68db37286971e20085e5d997d96
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a66a3b6f15b9854edd42aebceb76e21380b75a8b176e5493ab11c92b638a9572
[INFO] running `Command { std: "docker" "start" "-a" "a66a3b6f15b9854edd42aebceb76e21380b75a8b176e5493ab11c92b638a9572", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling hashbrown v0.15.3
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling miniz_oxide v0.8.5
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling uuid v1.16.0
[INFO] [stderr]    Compiling unty v0.0.4
[INFO] [stderr]    Compiling crc v3.3.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling bincode_derive v2.0.1
[INFO] [stderr]    Compiling flate2 v1.1.1
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling crc32c v0.6.8
[INFO] [stderr]    Compiling indexmap v2.9.0
[INFO] [stderr]    Compiling bincode v2.0.1
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.9
[INFO] [stderr]    Compiling cc v1.2.25
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling lz4-sys v1.11.1+lz4-1.10.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.44.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling lz4 v1.28.1
[INFO] [stderr]    Compiling kafka-protocol v0.15.1
[INFO] [stderr]    Compiling codecrafters-kafka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 34 | /                     loop {
[INFO] [stdout] 35 | |                         match rd.read(&mut buffer).await {
[INFO] [stdout] 36 | |                             Ok(n) if n > 0 => {
[INFO] [stdout] 37 | |                                 let mut buf = BytesMut::from(&buffer[4..n]);
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |                     }
[INFO] [stdout]    | |_____________________- any code following this expression is unreachable
[INFO] [stdout] 48 |                       let _ = socket.shutdown().await;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.90s
[INFO] running `Command { std: "docker" "inspect" "a66a3b6f15b9854edd42aebceb76e21380b75a8b176e5493ab11c92b638a9572", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a66a3b6f15b9854edd42aebceb76e21380b75a8b176e5493ab11c92b638a9572", kill_on_drop: false }`
[INFO] [stdout] a66a3b6f15b9854edd42aebceb76e21380b75a8b176e5493ab11c92b638a9572
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 955ad905841b2201fe1868966d8cd16e313656629329045eb4d42a099390c76d
[INFO] running `Command { std: "docker" "start" "-a" "955ad905841b2201fe1868966d8cd16e313656629329045eb4d42a099390c76d", kill_on_drop: false }`
[INFO] [stderr]    Compiling codecrafters-kafka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:48:21
[INFO] [stdout]    |
[INFO] [stdout] 34 | /                     loop {
[INFO] [stdout] 35 | |                         match rd.read(&mut buffer).await {
[INFO] [stdout] 36 | |                             Ok(n) if n > 0 => {
[INFO] [stdout] 37 | |                                 let mut buf = BytesMut::from(&buffer[4..n]);
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |                     }
[INFO] [stdout]    | |_____________________- any code following this expression is unreachable
[INFO] [stdout] 48 |                       let _ = socket.shutdown().await;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "955ad905841b2201fe1868966d8cd16e313656629329045eb4d42a099390c76d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "955ad905841b2201fe1868966d8cd16e313656629329045eb4d42a099390c76d", kill_on_drop: false }`
[INFO] [stdout] 955ad905841b2201fe1868966d8cd16e313656629329045eb4d42a099390c76d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2cfe857c9ad5e8e926a5bfb1465ee244befa56fe3b89d87b70677d78000a2240
[INFO] running `Command { std: "docker" "start" "-a" "2cfe857c9ad5e8e926a5bfb1465ee244befa56fe3b89d87b70677d78000a2240", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/main.rs:48:21
[INFO] [stderr]    |
[INFO] [stderr] 34 | /                     loop {
[INFO] [stderr] 35 | |                         match rd.read(&mut buffer).await {
[INFO] [stderr] 36 | |                             Ok(n) if n > 0 => {
[INFO] [stderr] 37 | |                                 let mut buf = BytesMut::from(&buffer[4..n]);
[INFO] [stderr] ...  |
[INFO] [stderr] 47 | |                     }
[INFO] [stderr]    | |_____________________- any code following this expression is unreachable
[INFO] [stderr] 48 |                       let _ = socket.shutdown().await;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `codecrafters-kafka` (bin "codecrafters-kafka" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/codecrafters_kafka-9da37a75b60d1179)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test record::tests::test_to_i16 ... ok
[INFO] [stdout] test record::tests::test_to_i8 ... ok
[INFO] [stdout] test record::tests::test_build_records_from_bytes ... ok
[INFO] [stdout] test record::tests::test_build_records_from_bytes2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/codecrafters_kafka-99de73880cd9f92c)
[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]    Doc-tests codecrafters_kafka
[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" "2cfe857c9ad5e8e926a5bfb1465ee244befa56fe3b89d87b70677d78000a2240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cfe857c9ad5e8e926a5bfb1465ee244befa56fe3b89d87b70677d78000a2240", kill_on_drop: false }`
[INFO] [stdout] 2cfe857c9ad5e8e926a5bfb1465ee244befa56fe3b89d87b70677d78000a2240