[INFO] cloning repository https://github.com/dialMForMonkey/playground_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/dialMForMonkey/playground_kafka_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdialMForMonkey%2Fplayground_kafka_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdialMForMonkey%2Fplayground_kafka_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2f16baf7c6aa3ded956808d99acb1f44c91f817
[INFO] checking dialMForMonkey/playground_kafka_rust/e2f16baf7c6aa3ded956808d99acb1f44c91f817 against master#0028f344ce9f64766259577c998a1959ca1f6a0b for pr-153041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdialMForMonkey%2Fplayground_kafka_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dialMForMonkey/playground_kafka_rust
[INFO] finished tweaking git repo https://github.com/dialMForMonkey/playground_kafka_rust
[INFO] tweaked toml for git repo https://github.com/dialMForMonkey/playground_kafka_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dialMForMonkey/playground_kafka_rust on toolchain 0028f344ce9f64766259577c998a1959ca1f6a0b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0028f344ce9f64766259577c998a1959ca1f6a0b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0028f344ce9f64766259577c998a1959ca1f6a0b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 74 packages to latest compatible versions
[INFO] [stderr]       Adding rdkafka v0.25.0 (available: v0.39.0)
[INFO] [stderr]       Adding uuid v0.8.2 (available: v1.21.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0028f344ce9f64766259577c998a1959ca1f6a0b" "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-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" "-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+0028f344ce9f64766259577c998a1959ca1f6a0b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad5a8e27e32ceb109c81cd3eab7450c8b997a1c261d122abf87a94bc1264f268
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[INFO] [stderr]    Compiling unicode-ident v1.0.24
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[INFO] [stderr]    Compiling syn v2.0.117
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[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]    Compiling cmake v0.1.57
[INFO] [stderr]    Compiling libz-sys v1.1.24
[INFO] [stderr]    Compiling rdkafka-sys v3.0.0+1.6.0
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[INFO] [stderr]    Compiling num_enum_derive v0.5.11
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[INFO] [stderr]     Checking serde v1.0.228
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[INFO] [stderr]     Checking kfk v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BorrowedMessage`
[INFO] [stdout]  --> src/kafka/message.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rdkafka::message::{OwnedHeaders, BorrowedMessage};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStream`
[INFO] [stdout]  --> src/kafka/message.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::{StreamExt, TryStream};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::FuturesUnordered`
[INFO] [stdout]  --> src/kafka/message.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures::stream::FuturesUnordered;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `KafkaError`
[INFO] [stdout]   --> src/kafka/message.rs:10:35
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rdkafka::error::{KafkaResult, KafkaError};
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context` and `Timestamp`
[INFO] [stdout]  --> src/main.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use uuid::v1::{Context, Timestamp};
[INFO] [stdout]   |                ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BorrowedMessage`
[INFO] [stdout]  --> src/kafka/message.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rdkafka::message::{OwnedHeaders, BorrowedMessage};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStream`
[INFO] [stdout]  --> src/kafka/message.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::{StreamExt, TryStream};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::stream::FuturesUnordered`
[INFO] [stdout]  --> src/kafka/message.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use futures::stream::FuturesUnordered;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `KafkaError`
[INFO] [stdout]   --> src/kafka/message.rs:10:35
[INFO] [stdout]    |
[INFO] [stdout] 10 | use rdkafka::error::{KafkaResult, KafkaError};
[INFO] [stdout]    |                                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context` and `Timestamp`
[INFO] [stdout]  --> src/main.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 | use uuid::v1::{Context, Timestamp};
[INFO] [stdout]   |                ^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/kafka/message.rs:105:49
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub async fn send(topic_name :&str, key:String, message:String, client_config: &ClientConfig)-> Result<String,String>{
[INFO] [stdout]     |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/kafka/message.rs:120:36
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 Ok((partition_num, offset)) => {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/kafka/message.rs:105:49
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub async fn send(topic_name :&str, key:String, message:String, client_config: &ClientConfig)-> Result<String,String>{
[INFO] [stdout]     |                                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `offset`
[INFO] [stdout]    --> src/kafka/message.rs:120:36
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 Ok((partition_num, offset)) => {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_offset`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut client = default(host, group_id);
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut client = default(host, group_id);
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     create_topic(&client, 4,topic_name).await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let _ = create_topic(&client, 4,topic_name).await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     create_topic(&client, 4,topic_name).await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let _ = create_topic(&client, 4,topic_name).await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.25s
[INFO] running `Command { std: "docker" "inspect" "ad5a8e27e32ceb109c81cd3eab7450c8b997a1c261d122abf87a94bc1264f268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad5a8e27e32ceb109c81cd3eab7450c8b997a1c261d122abf87a94bc1264f268", kill_on_drop: false }`
[INFO] [stdout] ad5a8e27e32ceb109c81cd3eab7450c8b997a1c261d122abf87a94bc1264f268
