[INFO] cloning repository https://github.com/lethuzulu/kafka-broker-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lethuzulu/kafka-broker-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flethuzulu%2Fkafka-broker-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flethuzulu%2Fkafka-broker-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f876b17baa177b59511ac8bb7ff8859a6363e6f1
[INFO] testing lethuzulu/kafka-broker-rust against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flethuzulu%2Fkafka-broker-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lethuzulu/kafka-broker-rust
[INFO] finished tweaking git repo https://github.com/lethuzulu/kafka-broker-rust
[INFO] tweaked toml for git repo https://github.com/lethuzulu/kafka-broker-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lethuzulu/kafka-broker-rust on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lethuzulu/kafka-broker-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9f70109c14db63ea978382a019d85e42e5537d4524d459fb8ca76084844ea6a
[INFO] running `Command { std: "docker" "start" "-a" "c9f70109c14db63ea978382a019d85e42e5537d4524d459fb8ca76084844ea6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9f70109c14db63ea978382a019d85e42e5537d4524d459fb8ca76084844ea6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9f70109c14db63ea978382a019d85e42e5537d4524d459fb8ca76084844ea6a", kill_on_drop: false }`
[INFO] [stdout] c9f70109c14db63ea978382a019d85e42e5537d4524d459fb8ca76084844ea6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b7b838ee3d81f5035406d797d72d4c630de6d88f6c35bff4c8eb1667d15cf74
[INFO] running `Command { std: "docker" "start" "-a" "9b7b838ee3d81f5035406d797d72d4c630de6d88f6c35bff4c8eb1667d15cf74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling uuid v1.11.0
[INFO] [stderr]    Compiling kafka-broker-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `throttle_time_ms`
[INFO] [stdout]    --> src/main.rs:254:9
[INFO] [stdout]     |
[INFO] [stdout] 254 |     let throttle_time_ms = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_throttle_time_ms`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message_size` is never read
[INFO] [stdout]    --> src/main.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct Request {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 119 |     message_size: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `request_api_key` and `client_id` are never read
[INFO] [stdout]    --> src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | struct RequestHeader {
[INFO] [stdout]     |        ------------- fields in this struct
[INFO] [stdout] 125 |     request_api_key: i16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     client_id: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RequestHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "9b7b838ee3d81f5035406d797d72d4c630de6d88f6c35bff4c8eb1667d15cf74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b7b838ee3d81f5035406d797d72d4c630de6d88f6c35bff4c8eb1667d15cf74", kill_on_drop: false }`
[INFO] [stdout] 9b7b838ee3d81f5035406d797d72d4c630de6d88f6c35bff4c8eb1667d15cf74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2805e259b969afa96bbebcbb5765cf21f00924191923c173997d02843537b216
[INFO] running `Command { std: "docker" "start" "-a" "2805e259b969afa96bbebcbb5765cf21f00924191923c173997d02843537b216", kill_on_drop: false }`
[INFO] [stderr]    Compiling kafka-broker-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `throttle_time_ms`
[INFO] [stdout]    --> src/main.rs:254:9
[INFO] [stdout]     |
[INFO] [stdout] 254 |     let throttle_time_ms = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_throttle_time_ms`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message_size` is never read
[INFO] [stdout]    --> src/main.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 118 | struct Request {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 119 |     message_size: i32,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `request_api_key` and `client_id` are never read
[INFO] [stdout]    --> src/main.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 124 | struct RequestHeader {
[INFO] [stdout]     |        ------------- fields in this struct
[INFO] [stdout] 125 |     request_api_key: i16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     client_id: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RequestHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "2805e259b969afa96bbebcbb5765cf21f00924191923c173997d02843537b216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2805e259b969afa96bbebcbb5765cf21f00924191923c173997d02843537b216", kill_on_drop: false }`
[INFO] [stdout] 2805e259b969afa96bbebcbb5765cf21f00924191923c173997d02843537b216
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cac8b015782bc131646017cc13afab02c672236f7d4f4edffbebbc23738cf96
[INFO] running `Command { std: "docker" "start" "-a" "4cac8b015782bc131646017cc13afab02c672236f7d4f4edffbebbc23738cf96", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `throttle_time_ms`
[INFO] [stderr]    --> src/main.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |     let throttle_time_ms = 0;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_throttle_time_ms`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `message_size` is never read
[INFO] [stderr]    --> src/main.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 118 | struct Request {
[INFO] [stderr]     |        ------- field in this struct
[INFO] [stderr] 119 |     message_size: i32,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Request` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `request_api_key` and `client_id` are never read
[INFO] [stderr]    --> src/main.rs:125:5
[INFO] [stderr]     |
[INFO] [stderr] 124 | struct RequestHeader {
[INFO] [stderr]     |        ------------- fields in this struct
[INFO] [stderr] 125 |     request_api_key: i16,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 128 |     client_id: Option<String>,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `RequestHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `kafka-broker-rust` (bin "kafka-broker-rust" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/kafka_broker_rust-67f5a731e9d39141)
[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" "4cac8b015782bc131646017cc13afab02c672236f7d4f4edffbebbc23738cf96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cac8b015782bc131646017cc13afab02c672236f7d4f4edffbebbc23738cf96", kill_on_drop: false }`
[INFO] [stdout] 4cac8b015782bc131646017cc13afab02c672236f7d4f4edffbebbc23738cf96