[INFO] cloning repository https://github.com/gogi1337/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/gogi1337/codecrafters-kafka-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgogi1337%2Fcodecrafters-kafka-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgogi1337%2Fcodecrafters-kafka-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65303396b7ab7a592ed9fc5a28dcb22c0a7db0ed
[INFO] checking gogi1337/codecrafters-kafka-rust against master#cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd for pr-145463
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgogi1337%2Fcodecrafters-kafka-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/gogi1337/codecrafters-kafka-rust
[INFO] finished tweaking git repo https://github.com/gogi1337/codecrafters-kafka-rust
[INFO] tweaked toml for git repo https://github.com/gogi1337/codecrafters-kafka-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gogi1337/codecrafters-kafka-rust on toolchain cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gogi1337/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" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ff0a8cbfe58a4728502aff220c9d1f6f17835ad85e24e5d513c40911a827538
[INFO] running `Command { std: "docker" "start" "-a" "4ff0a8cbfe58a4728502aff220c9d1f6f17835ad85e24e5d513c40911a827538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ff0a8cbfe58a4728502aff220c9d1f6f17835ad85e24e5d513c40911a827538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ff0a8cbfe58a4728502aff220c9d1f6f17835ad85e24e5d513c40911a827538", kill_on_drop: false }`
[INFO] [stdout] 4ff0a8cbfe58a4728502aff220c9d1f6f17835ad85e24e5d513c40911a827538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+cd7cbe818e4a66d46fe2df993d1b8518eba8a5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2aebe9795115bd24009314e3372d8ea3c259e75a113c1d13a613477033ea5f75
[INFO] running `Command { std: "docker" "start" "-a" "2aebe9795115bd24009314e3372d8ea3c259e75a113c1d13a613477033ea5f75", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]     Checking 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]     Checking codecrafters-kafka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]   --> src/main.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 let req = stream.read(&mut buf).unwrap();
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req`
[INFO] [stdout]   --> src/main.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |                 let req = stream.read(&mut buf).unwrap();
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_req`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `request_api_key`, `request_api_version`, and `client_id` are never read
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 15 |     request_api_key: i16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     request_api_version: i16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     correlation_id: i32,
[INFO] [stdout] 18 |     client_id: Option<String>
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | enum ErrorKinds {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 41 |     None = 0,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorKinds` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `request_api_key`, `request_api_version`, and `client_id` are never read
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 15 |     request_api_key: i16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 16 |     request_api_version: i16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 17 |     correlation_id: i32,
[INFO] [stdout] 18 |     client_id: Option<String>
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | enum ErrorKinds {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 41 |     None = 0,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ErrorKinds` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.22s
[INFO] running `Command { std: "docker" "inspect" "2aebe9795115bd24009314e3372d8ea3c259e75a113c1d13a613477033ea5f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aebe9795115bd24009314e3372d8ea3c259e75a113c1d13a613477033ea5f75", kill_on_drop: false }`
[INFO] [stdout] 2aebe9795115bd24009314e3372d8ea3c259e75a113c1d13a613477033ea5f75