[INFO] fetching crate kafka-rs 0.5.0...
[INFO] testing kafka-rs-0.5.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate kafka-rs 0.5.0 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kafka-rs 0.5.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f250287fcbc145f0a9df5551d7bb065b54719ff4c6568135c47ef19359fe529
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d899b57e932d709998c437020b9b26eca7c09d36331fb716a027aa3838c2348
[INFO] running `Command { std: "docker" "start" "-a" "3d899b57e932d709998c437020b9b26eca7c09d36331fb716a027aa3838c2348", kill_on_drop: false }`
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[INFO] [stdout] warning: value assigned to `payload` is never read
[INFO] [stdout]   --> src/error.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub(crate) payload: RequestKind,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.47s
[INFO] running `Command { std: "docker" "inspect" "3d899b57e932d709998c437020b9b26eca7c09d36331fb716a027aa3838c2348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d899b57e932d709998c437020b9b26eca7c09d36331fb716a027aa3838c2348", kill_on_drop: false }`
[INFO] [stdout] 3d899b57e932d709998c437020b9b26eca7c09d36331fb716a027aa3838c2348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0af5c0aed638fc83ca1c489892efcbf0929ce28bbe32ea2f2ad01ffeae3ae9ed
[INFO] running `Command { std: "docker" "start" "-a" "0af5c0aed638fc83ca1c489892efcbf0929ce28bbe32ea2f2ad01ffeae3ae9ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling kafka-rs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stdout] warning: value assigned to `payload` is never read
[INFO] [stdout]   --> src/error.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub(crate) payload: RequestKind,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `payload` is never read
[INFO] [stdout]   --> src/error.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub(crate) payload: RequestKind,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.23s
[INFO] running `Command { std: "docker" "inspect" "0af5c0aed638fc83ca1c489892efcbf0929ce28bbe32ea2f2ad01ffeae3ae9ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af5c0aed638fc83ca1c489892efcbf0929ce28bbe32ea2f2ad01ffeae3ae9ed", kill_on_drop: false }`
[INFO] [stdout] 0af5c0aed638fc83ca1c489892efcbf0929ce28bbe32ea2f2ad01ffeae3ae9ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 017ceeccf09cb396c1e4792ec9e016f49445f38b24860502db04cc1afb2c04e3
[INFO] running `Command { std: "docker" "start" "-a" "017ceeccf09cb396c1e4792ec9e016f49445f38b24860502db04cc1afb2c04e3", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `payload` is never read
[INFO] [stderr]   --> src/error.rs:61:16
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub(crate) payload: RequestKind,
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `tx` is never read
[INFO] [stderr]   --> src/client.rs:54:16
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub struct Client {
[INFO] [stderr]    |            ------ field in this struct
[INFO] [stderr] 53 |     /// The channel used for communicating with the client task.
[INFO] [stderr] 54 |     pub(crate) tx: mpsc::Sender<Msg>,
[INFO] [stderr]    |                ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Client` has a derived impl for the trait `Clone`, but this is 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 `metadata` is never read
[INFO] [stderr]   --> src/clitask.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 53 | pub(crate) struct PartitionMetadata {
[INFO] [stderr]    |                   ----------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 57 |     pub(crate) metadata: MetadataResponsePartition,
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `PartitionMetadata` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `interval` is never read
[INFO] [stderr]    --> src/clitask.rs:277:9
[INFO] [stderr]     |
[INFO] [stderr] 271 |     Automatic {
[INFO] [stderr]     |     --------- field in this variant
[INFO] [stderr] ...
[INFO] [stderr] 277 |         interval: Duration,
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `kafka-rs` (lib) generated 4 warnings
[INFO] [stderr] warning: `kafka-rs` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/create_topic.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut admin = cli.admin();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kafka-rs` (example "create_topic") generated 1 warning (run `cargo fix --example "create_topic" -p kafka-rs` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kafka_rs-1290de26d8575f9f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests kafka_rs
[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] [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" "017ceeccf09cb396c1e4792ec9e016f49445f38b24860502db04cc1afb2c04e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017ceeccf09cb396c1e4792ec9e016f49445f38b24860502db04cc1afb2c04e3", kill_on_drop: false }`
[INFO] [stdout] 017ceeccf09cb396c1e4792ec9e016f49445f38b24860502db04cc1afb2c04e3
