[INFO] fetching crate sshu-communicator 0.0.2... [INFO] checking sshu-communicator-0.0.2 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1 [INFO] extracting crate sshu-communicator 0.0.2 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate sshu-communicator 0.0.2 [INFO] finished tweaking crates.io crate sshu-communicator 0.0.2 [INFO] tweaked toml for crates.io crate sshu-communicator 0.0.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate sshu-communicator 0.0.2 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate sshu-communicator 0.0.2 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded async-trait v0.1.71 [INFO] [stderr] Downloaded serde_derive v1.0.166 [INFO] [stderr] Downloaded serde v1.0.166 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4b61f215f1cc6a9c8719e90c75e7d27729aaf9ec467a447e6c1755d36de15695 [INFO] running `Command { std: "docker" "start" "-a" "4b61f215f1cc6a9c8719e90c75e7d27729aaf9ec467a447e6c1755d36de15695", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4b61f215f1cc6a9c8719e90c75e7d27729aaf9ec467a447e6c1755d36de15695", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b61f215f1cc6a9c8719e90c75e7d27729aaf9ec467a447e6c1755d36de15695", kill_on_drop: false }` [INFO] [stdout] 4b61f215f1cc6a9c8719e90c75e7d27729aaf9ec467a447e6c1755d36de15695 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d88d1332cb0ee77f436071bdd6d6b3f01d9a4ca589bc39bc594c5cb436abdb4 [INFO] running `Command { std: "docker" "start" "-a" "7d88d1332cb0ee77f436071bdd6d6b3f01d9a4ca589bc39bc594c5cb436abdb4", kill_on_drop: false }` [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking futures-sink v0.3.28 [INFO] [stderr] Compiling serde v1.0.166 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Compiling async-trait v0.1.71 [INFO] [stderr] Checking uuid v1.4.0 [INFO] [stderr] Compiling syn v2.0.23 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling serde_derive v1.0.166 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Checking tokio v1.29.1 [INFO] [stderr] Checking futures-executor v0.3.28 [INFO] [stderr] Checking futures v0.3.28 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking sshu-communicator v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] error[E0433]: failed to resolve: could not find `macos` in `os` [INFO] [stdout] --> src/tcp/tcp_communicator_hub.rs:5:14 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::macos::raw::stat; [INFO] [stdout] | ^^^^^ could not find `macos` in `os` [INFO] [stdout] | [INFO] [stdout] note: found an item that was configured out [INFO] [stdout] --> /rustc/8c32e313cccf7df531e2d49ffb8227bb92304aee/library/std/src/os/mod.rs:156:7 [INFO] [stdout] | [INFO] [stdout] = note: the item is gated behind the `macos` feature [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::pin::pin` [INFO] [stdout] --> src/tcp/tcp_communicator.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::pin::pin; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::task::SpawnExt` [INFO] [stdout] --> src/tcp/tcp_communicator.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use futures::task::SpawnExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Serializer` [INFO] [stdout] --> src/tcp/tcp_message.rs:3:24 [INFO] [stdout] | [INFO] [stdout] 3 | use serde::{Serialize, Serializer}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::net::TcpStream` [INFO] [stdout] --> src/tcp/tcp_message.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use tokio::net::TcpStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `MutexGuard` [INFO] [stdout] --> src/tcp/tcp_communicator_hub.rs:14:26 [INFO] [stdout] | [INFO] [stdout] 14 | use tokio::sync::{Mutex, MutexGuard}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::SplitAsciiWhitespace` [INFO] [stdout] --> src/tests/tcp_communicator.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::SplitAsciiWhitespace; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::DerefMut` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ops::DerefMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::pin::pin` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::pin::pin; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Barrier` and `Semaphore` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:11:19 [INFO] [stdout] | [INFO] [stdout] 11 | use tokio::sync::{Barrier, Mutex, Semaphore}; [INFO] [stdout] | ^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TcpMessage` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:13:65 [INFO] [stdout] | [INFO] [stdout] 13 | use crate::{Communicator, CommunicatorMessage, TcpCommunicator, TcpMessage}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Display` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::fmt::Display; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: could not find `macos` in `os` [INFO] [stdout] --> src/tcp/tcp_communicator_hub.rs:5:14 [INFO] [stdout] | [INFO] [stdout] 5 | use std::os::macos::raw::stat; [INFO] [stdout] | ^^^^^ could not find `macos` in `os` [INFO] [stdout] | [INFO] [stdout] note: found an item that was configured out [INFO] [stdout] --> /rustc/8c32e313cccf7df531e2d49ffb8227bb92304aee/library/std/src/os/mod.rs:156:7 [INFO] [stdout] | [INFO] [stdout] = note: the item is gated behind the `macos` feature [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::pin::pin` [INFO] [stdout] --> src/tcp/tcp_communicator.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::pin::pin; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::task::SpawnExt` [INFO] [stdout] --> src/tcp/tcp_communicator.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use futures::task::SpawnExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Serializer` [INFO] [stdout] --> src/tcp/tcp_message.rs:3:24 [INFO] [stdout] | [INFO] [stdout] 3 | use serde::{Serialize, Serializer}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::net::TcpStream` [INFO] [stdout] --> src/tcp/tcp_message.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use tokio::net::TcpStream; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `MutexGuard` [INFO] [stdout] --> src/tcp/tcp_communicator_hub.rs:14:26 [INFO] [stdout] | [INFO] [stdout] 14 | use tokio::sync::{Mutex, MutexGuard}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::SplitAsciiWhitespace` [INFO] [stdout] --> src/tests/tcp_communicator.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::SplitAsciiWhitespace; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/tests/tcp_communicator.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/tests/tcp_communicator.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::Rng; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `join`, `select`, and `spawn` [INFO] [stdout] --> src/tests/tcp_communicator.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | use tokio::{join, select, spawn}; [INFO] [stdout] | ^^^^ ^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `TcpListener` and `TcpStream` [INFO] [stdout] --> src/tests/tcp_communicator.rs:7:18 [INFO] [stdout] | [INFO] [stdout] 7 | use tokio::net::{TcpListener, TcpStream}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::sleep` [INFO] [stdout] --> src/tests/tcp_communicator.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use tokio::time::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `CommunicatorMessage` and `Communicator` [INFO] [stdout] --> src/tests/tcp_communicator.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | use crate::{Communicator, CommunicatorMessage}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::tcp::TcpCommunicator` [INFO] [stdout] --> src/tests/tcp_communicator.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use crate::tcp::TcpCommunicator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `CommunicatorMessage` and `TcpMessage` [INFO] [stdout] --> src/tests/tcp_message.rs:1:13 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{CommunicatorMessage, TcpMessage}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize` [INFO] [stdout] --> src/tests/tcp_message.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | use serde::{Deserialize, Serialize}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::DerefMut` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ops::DerefMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::pin::pin` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::pin::pin; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::Rng` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use rand::Rng; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `CommunicatorId` and `TcpCommunicatorHub` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:8:18 [INFO] [stdout] | [INFO] [stdout] 8 | use crate::tcp::{CommunicatorId, TcpCommunicatorHub}; [INFO] [stdout] | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `select` and `spawn` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | use tokio::{select, spawn}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Barrier`, `Mutex`, and `Semaphore` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:11:19 [INFO] [stdout] | [INFO] [stdout] 11 | use tokio::sync::{Barrier, Mutex, Semaphore}; [INFO] [stdout] | ^^^^^^^ ^^^^^ ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio::time::sleep` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use tokio::time::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `CommunicatorMessage`, `Communicator`, `TcpCommunicator`, and `TcpMessage` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 13 | use crate::{Communicator, CommunicatorMessage, TcpCommunicator, TcpMessage}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Display` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::fmt::Display; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::Arc` [INFO] [stdout] --> src/lib.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::sync::Arc; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::StreamExt` [INFO] [stdout] --> src/tests/tcp_communicator.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use futures::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::StreamExt` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use futures::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] [INFO] [stderr] error: could not compile `sshu-communicator` (lib) due to 1 previous error; 30 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `write` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:24:17 [INFO] [stdout] | [INFO] [stdout] 24 | let write [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_write` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `age` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:98:26 [INFO] [stdout] | [INFO] [stdout] 98 | if let Test::Age(age) = result.value() { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_age` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/tests/tcp_communicator_hub.rs:119:35 [INFO] [stdout] | [INFO] [stdout] 119 | if let Test::Name(name) = message.value() { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] [INFO] [stderr] error: could not compile `sshu-communicator` (lib test) due to 1 previous error; 15 warnings emitted [INFO] running `Command { std: "docker" "inspect" "7d88d1332cb0ee77f436071bdd6d6b3f01d9a4ca589bc39bc594c5cb436abdb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d88d1332cb0ee77f436071bdd6d6b3f01d9a4ca589bc39bc594c5cb436abdb4", kill_on_drop: false }` [INFO] [stdout] 7d88d1332cb0ee77f436071bdd6d6b3f01d9a4ca589bc39bc594c5cb436abdb4