[INFO] cloning repository https://github.com/Teenvan/Rust-tokio-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Teenvan/Rust-tokio-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeenvan%2FRust-tokio-tutorial", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abcef850f63b051a7f8bd3e3399b7fba07d73328
[INFO] checking Teenvan/Rust-tokio-tutorial against 5c543b0b8c73c7b72bc8284ced4fb22ead15734d for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTeenvan%2FRust-tokio-tutorial" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Teenvan/Rust-tokio-tutorial
[INFO] finished tweaking git repo https://github.com/Teenvan/Rust-tokio-tutorial
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[INFO] validating manifest of git repo https://github.com/Teenvan/Rust-tokio-tutorial on toolchain 5c543b0b8c73c7b72bc8284ced4fb22ead15734d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5c543b0b8c73c7b72bc8284ced4fb22ead15734d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Teenvan/Rust-tokio-tutorial already has a lockfile, it will not be regenerated
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `tokio::net::TcpStream`
[INFO] [stdout]  --> src/bin/echo-server-copy.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::net::TcpStream;
[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: `std::collections::VecDeque`
[INFO] [stdout]  --> examples/mini_tokio.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::VecDeque;
[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: `tokio::net::TcpStream`
[INFO] [stdout]  --> src/bin/echo-server-copy.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::net::TcpStream;
[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 `Result` that must be used
[INFO] [stdout]   --> examples/mini_tokio.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         self.executor.send(self.clone());
[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 _unused = ...` to ignore the resulting value without dropping it immediately
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let _unused = self.executor.send(self.clone());
[INFO] [stdout]    |         +++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `crossbeam`
[INFO] [stderr]  --> Cargo.toml:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | crossbeam = "0.8"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `crossbeam`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]  --> Cargo.toml:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | futures = "0.3"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `my-redis` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.62s
[INFO] running `Command { std: "docker" "inspect" "381d810b1850751279676de2819e749d04224a7ec4fbff5cc6ee7703ec530c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "381d810b1850751279676de2819e749d04224a7ec4fbff5cc6ee7703ec530c0a", kill_on_drop: false }`
[INFO] [stdout] 381d810b1850751279676de2819e749d04224a7ec4fbff5cc6ee7703ec530c0a
