[INFO] cloning repository https://github.com/samer-hamood/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/samer-hamood/codecrafters-kafka-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamer-hamood%2Fcodecrafters-kafka-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamer-hamood%2Fcodecrafters-kafka-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0a6aeada141f50499b798adbdb207e933eb38d4
[INFO] checking samer-hamood/codecrafters-kafka-rust against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamer-hamood%2Fcodecrafters-kafka-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samer-hamood/codecrafters-kafka-rust
[INFO] finished tweaking git repo https://github.com/samer-hamood/codecrafters-kafka-rust
[INFO] tweaked toml for git repo https://github.com/samer-hamood/codecrafters-kafka-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samer-hamood/codecrafters-kafka-rust on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samer-hamood/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e460ed8d257b0ff280935956435e5f21d3e3fbad13a492e1bfc2b9f7e0edfce6
[INFO] running `Command { std: "docker" "start" "-a" "e460ed8d257b0ff280935956435e5f21d3e3fbad13a492e1bfc2b9f7e0edfce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e460ed8d257b0ff280935956435e5f21d3e3fbad13a492e1bfc2b9f7e0edfce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e460ed8d257b0ff280935956435e5f21d3e3fbad13a492e1bfc2b9f7e0edfce6", kill_on_drop: false }`
[INFO] [stdout] e460ed8d257b0ff280935956435e5f21d3e3fbad13a492e1bfc2b9f7e0edfce6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e50a1cf2b35bed30b74c660326d7c630aff93726fa014b390b01d152ea6cab7e
[INFO] running `Command { std: "docker" "start" "-a" "e50a1cf2b35bed30b74c660326d7c630aff93726fa014b390b01d152ea6cab7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling parameterized-macro v2.0.0
[INFO] [stderr]     Checking parameterized v2.0.0
[INFO] [stderr]     Checking codecrafters-kafka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MESSAGE_SIZE` is never used
[INFO] [stdout]  --> src/headers/request_header_v2.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MESSAGE_SIZE: usize = 4;
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REQUEST_API_KEY` is never used
[INFO] [stdout]   --> src/headers/request_header_v2.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const REQUEST_API_KEY: usize = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `REQUEST_API_VERSION` is never used
[INFO] [stdout]   --> src/headers/request_header_v2.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | const REQUEST_API_VERSION: usize = 2;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CORRELATION_ID` is never used
[INFO] [stdout]   --> src/headers/request_header_v2.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CORRELATION_ID: usize = 4;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/nullable_string.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let utf8_bytes = bytes[offset..offset + (length as usize)].try_into().unwrap();
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `codecrafters-kafka` (bin "codecrafters-kafka") due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<u8>, Infallible>
[INFO] [stdout]   --> src/nullable_string.rs:49:30
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let utf8_bytes = bytes[offset..offset + (length as usize)].try_into().unwrap();
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `codecrafters-kafka` (bin "codecrafters-kafka" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e50a1cf2b35bed30b74c660326d7c630aff93726fa014b390b01d152ea6cab7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50a1cf2b35bed30b74c660326d7c630aff93726fa014b390b01d152ea6cab7e", kill_on_drop: false }`
[INFO] [stdout] e50a1cf2b35bed30b74c660326d7c630aff93726fa014b390b01d152ea6cab7e
