[INFO] cloning repository https://github.com/manu3618/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/manu3618/codecrafters-kafka-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanu3618%2Fcodecrafters-kafka-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanu3618%2Fcodecrafters-kafka-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 179c655393ac43987aba1298acc3cdfa132b51e2 [INFO] testing manu3618/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%2Fmanu3618%2Fcodecrafters-kafka-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/manu3618/codecrafters-kafka-rust [INFO] finished tweaking git repo https://github.com/manu3618/codecrafters-kafka-rust [INFO] tweaked toml for git repo https://github.com/manu3618/codecrafters-kafka-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/manu3618/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/manu3618/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-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] 5afa3a8c01abebaf4c3e66e0bca841c6dc4bfc6ad1f5fdd8d8c123734dc78d01 [INFO] running `Command { std: "docker" "start" "-a" "5afa3a8c01abebaf4c3e66e0bca841c6dc4bfc6ad1f5fdd8d8c123734dc78d01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5afa3a8c01abebaf4c3e66e0bca841c6dc4bfc6ad1f5fdd8d8c123734dc78d01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5afa3a8c01abebaf4c3e66e0bca841c6dc4bfc6ad1f5fdd8d8c123734dc78d01", kill_on_drop: false }` [INFO] [stdout] 5afa3a8c01abebaf4c3e66e0bca841c6dc4bfc6ad1f5fdd8d8c123734dc78d01 [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] 164a22d32e662de48ed974663aee4ab96d4af3a3e80d5d345e8803b8398e50b5 [INFO] running `Command { std: "docker" "start" "-a" "164a22d32e662de48ed974663aee4ab96d4af3a3e80d5d345e8803b8398e50b5", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling anyhow v1.0.86 [INFO] [stderr] Compiling thiserror v1.0.63 [INFO] [stderr] Compiling bytes v1.7.1 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.75 [INFO] [stderr] Compiling thiserror-impl v1.0.63 [INFO] [stderr] Compiling codecrafters-kafka v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `client_id` and `tag_array` are never read [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 38 | struct MessageHeader { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 42 | client_id: String, // The client ID for the request [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 43 | tag_array: CompactBuffer, // Optional tagged fields [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MessageHeader` has derived impls for the traits `Debug` and `Clone`, 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: field `array` is never read [INFO] [stdout] --> src/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 47 | struct CompactBuffer { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 48 | array: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CompactBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ProduceBody` is never constructed [INFO] [stdout] --> src/main.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | struct ProduceBody {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `to_bytes` is never used [INFO] [stdout] --> src/main.rs:105:8 [INFO] [stdout] | [INFO] [stdout] 104 | impl CompactBuffer { [INFO] [stdout] | ------------------------ method in this implementation [INFO] [stdout] 105 | fn to_bytes(self) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.76s [INFO] running `Command { std: "docker" "inspect" "164a22d32e662de48ed974663aee4ab96d4af3a3e80d5d345e8803b8398e50b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "164a22d32e662de48ed974663aee4ab96d4af3a3e80d5d345e8803b8398e50b5", kill_on_drop: false }` [INFO] [stdout] 164a22d32e662de48ed974663aee4ab96d4af3a3e80d5d345e8803b8398e50b5 [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] d38bccbb95269d1ac8c22289bbf47e19f007bcdb89e716773c8ad0eea49eae8d [INFO] running `Command { std: "docker" "start" "-a" "d38bccbb95269d1ac8c22289bbf47e19f007bcdb89e716773c8ad0eea49eae8d", kill_on_drop: false }` [INFO] [stderr] Compiling codecrafters-kafka v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `client_id` and `tag_array` are never read [INFO] [stdout] --> src/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 38 | struct MessageHeader { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 42 | client_id: String, // The client ID for the request [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 43 | tag_array: CompactBuffer, // Optional tagged fields [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MessageHeader` has derived impls for the traits `Debug` and `Clone`, 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: field `array` is never read [INFO] [stdout] --> src/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 47 | struct CompactBuffer { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 48 | array: Vec, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CompactBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ProduceBody` is never constructed [INFO] [stdout] --> src/main.rs:52:8 [INFO] [stdout] | [INFO] [stdout] 52 | struct ProduceBody {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `to_bytes` is never used [INFO] [stdout] --> src/main.rs:105:8 [INFO] [stdout] | [INFO] [stdout] 104 | impl CompactBuffer { [INFO] [stdout] | ------------------------ method in this implementation [INFO] [stdout] 105 | fn to_bytes(self) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s [INFO] running `Command { std: "docker" "inspect" "d38bccbb95269d1ac8c22289bbf47e19f007bcdb89e716773c8ad0eea49eae8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d38bccbb95269d1ac8c22289bbf47e19f007bcdb89e716773c8ad0eea49eae8d", kill_on_drop: false }` [INFO] [stdout] d38bccbb95269d1ac8c22289bbf47e19f007bcdb89e716773c8ad0eea49eae8d [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] 229b9ee2818bf23b2030c212f7fd01963ed39abb77817167c2e75c4345988693 [INFO] running `Command { std: "docker" "start" "-a" "229b9ee2818bf23b2030c212f7fd01963ed39abb77817167c2e75c4345988693", kill_on_drop: false }` [INFO] [stderr] warning: fields `client_id` and `tag_array` are never read [INFO] [stderr] --> src/main.rs:42:5 [INFO] [stderr] | [INFO] [stderr] 38 | struct MessageHeader { [INFO] [stderr] | ------------- fields in this struct [INFO] [stderr] ... [INFO] [stderr] 42 | client_id: String, // The client ID for the request [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 43 | tag_array: CompactBuffer, // Optional tagged fields [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `MessageHeader` has derived impls for the traits `Debug` and `Clone`, 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: field `array` is never read [INFO] [stderr] --> src/main.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 47 | struct CompactBuffer { [INFO] [stderr] | ------------- field in this struct [INFO] [stderr] 48 | array: Vec, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `CompactBuffer` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] [INFO] [stderr] warning: struct `ProduceBody` is never constructed [INFO] [stderr] --> src/main.rs:52:8 [INFO] [stderr] | [INFO] [stderr] 52 | struct ProduceBody {} [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method `to_bytes` is never used [INFO] [stderr] --> src/main.rs:105:8 [INFO] [stderr] | [INFO] [stderr] 104 | impl CompactBuffer { [INFO] [stderr] | ------------------------ method in this implementation [INFO] [stderr] 105 | fn to_bytes(self) -> Vec { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `codecrafters-kafka` (bin "codecrafters-kafka" test) generated 4 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/codecrafters_kafka-f01d5050d15f067f) [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" "229b9ee2818bf23b2030c212f7fd01963ed39abb77817167c2e75c4345988693", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "229b9ee2818bf23b2030c212f7fd01963ed39abb77817167c2e75c4345988693", kill_on_drop: false }` [INFO] [stdout] 229b9ee2818bf23b2030c212f7fd01963ed39abb77817167c2e75c4345988693