[INFO] fetching crate kafka-rs 0.5.0...
[INFO] checking kafka-rs-0.5.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate kafka-rs 0.5.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate kafka-rs 0.5.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate kafka-rs 0.5.0
[INFO] finished tweaking crates.io crate kafka-rs 0.5.0
[INFO] tweaked toml for crates.io crate kafka-rs 0.5.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate kafka-rs 0.5.0 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kafka-protocol v0.10.0
[INFO] [stderr]   Downloaded anyhow v1.0.83
[INFO] [stderr]   Downloaded crc32c v0.6.5
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ece2467e7b07f1de03d6254434e4a1cbc333f3d93d49d741014fc432234000ec
[INFO] running `Command { std: "docker" "start" "-a" "ece2467e7b07f1de03d6254434e4a1cbc333f3d93d49d741014fc432234000ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ece2467e7b07f1de03d6254434e4a1cbc333f3d93d49d741014fc432234000ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece2467e7b07f1de03d6254434e4a1cbc333f3d93d49d741014fc432234000ec", kill_on_drop: false }`
[INFO] [stdout] ece2467e7b07f1de03d6254434e4a1cbc333f3d93d49d741014fc432234000ec
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b38edacc09521211a5200062d8863fc7d0340167e5c133b1b2b5006336653352
[INFO] running `Command { std: "docker" "start" "-a" "b38edacc09521211a5200062d8863fc7d0340167e5c133b1b2b5006336653352", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling crc32c v0.6.5
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.64
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]    Compiling cc v1.0.97
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling zstd-sys v2.0.10+zstd.1.5.6
[INFO] [stderr]    Compiling lz4-sys v1.9.4
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling darling_core v0.20.9
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.60
[INFO] [stderr]    Compiling zstd-safe v7.1.0
[INFO] [stderr]     Checking zstd v0.13.1
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling darling_macro v0.20.9
[INFO] [stderr]    Compiling darling v0.20.9
[INFO] [stderr]    Compiling derive_builder_core v0.20.0
[INFO] [stderr]    Compiling derive_builder_macro v0.20.0
[INFO] [stderr]     Checking derive_builder v0.20.0
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking lz4 v1.24.0
[INFO] [stderr]     Checking kafka-protocol v0.10.0
[INFO] [stderr]     Checking kafka-rs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `tx` is never read
[INFO] [stdout]   --> src/client.rs:54:16
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Client {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 53 |     /// The channel used for communicating with the client task.
[INFO] [stdout] 54 |     pub(crate) tx: mpsc::Sender<Msg>,
[INFO] [stdout]    |                ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Client` has a derived impl for the trait `Clone`, 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: field `metadata` is never read
[INFO] [stdout]   --> src/clitask.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) struct PartitionMetadata {
[INFO] [stdout]    |                   ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub(crate) metadata: MetadataResponsePartition,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PartitionMetadata` 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: field `interval` is never read
[INFO] [stdout]    --> src/clitask.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |     Automatic {
[INFO] [stdout]     |     --------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 277 |         interval: Duration,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tx` is never read
[INFO] [stdout]   --> src/client.rs:54:16
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Client {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 53 |     /// The channel used for communicating with the client task.
[INFO] [stdout] 54 |     pub(crate) tx: mpsc::Sender<Msg>,
[INFO] [stdout]    |                ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Client` has a derived impl for the trait `Clone`, 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: field `metadata` is never read
[INFO] [stdout]   --> src/clitask.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) struct PartitionMetadata {
[INFO] [stdout]    |                   ----------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub(crate) metadata: MetadataResponsePartition,
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PartitionMetadata` 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: field `interval` is never read
[INFO] [stdout]    --> src/clitask.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |     Automatic {
[INFO] [stdout]     |     --------- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 277 |         interval: Duration,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/create_topic.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut admin = cli.admin();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.81s
[INFO] running `Command { std: "docker" "inspect" "b38edacc09521211a5200062d8863fc7d0340167e5c133b1b2b5006336653352", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b38edacc09521211a5200062d8863fc7d0340167e5c133b1b2b5006336653352", kill_on_drop: false }`
[INFO] [stdout] b38edacc09521211a5200062d8863fc7d0340167e5c133b1b2b5006336653352