[INFO] cloning repository https://github.com/0xK4mu/100-rust-exercices
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xK4mu/100-rust-exercices" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xK4mu%2F100-rust-exercices", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xK4mu%2F100-rust-exercices'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6877fa134ce43ed624c1aaca9c97ff7e08de32c
[INFO] building 0xK4mu/100-rust-exercices against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xK4mu%2F100-rust-exercices" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xK4mu/100-rust-exercices on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] crate git repo https://github.com/0xK4mu/100-rust-exercices 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]    Compiling runtime v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/03_runtime)
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]  --> exercises/08_futures/03_runtime/src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]  --> exercises/08_futures/03_runtime/src/lib.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub async fn fixed_reply<T>(first: TcpListener, second: TcpListener, reply: T)
[INFO] [stdout]   |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]  --> exercises/08_futures/03_runtime/src/lib.rs:8:49
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub async fn fixed_reply<T>(first: TcpListener, second: TcpListener, reply: T)
[INFO] [stdout]   |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reply`
[INFO] [stdout]  --> exercises/08_futures/03_runtime/src/lib.rs:8:70
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub async fn fixed_reply<T>(first: TcpListener, second: TcpListener, reply: T)
[INFO] [stdout]   |                                                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_reply`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling spawn v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/02_spawn)
[INFO] [stderr]    Compiling cancellation v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/07_cancellation)
[INFO] [stdout] warning: unused variable: `first`
[INFO] [stdout]  --> exercises/08_futures/02_spawn/src/lib.rs:6:21
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub async fn echoes(first: TcpListener, second: TcpListener) -> Result<(), anyhow::Error> {
[INFO] [stdout]   |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_first`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second`
[INFO] [stdout]  --> exercises/08_futures/02_spawn/src/lib.rs:6:41
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub async fn echoes(first: TcpListener, second: TcpListener) -> Result<(), anyhow::Error> {
[INFO] [stdout]   |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_second`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling future v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/04_future)
[INFO] [stderr]    Compiling async_locks v0.1.0 (/opt/rustwide/workdir/exercises/08_futures/06_async_aware_primitives)
[INFO] [stdout] error: future cannot be sent between threads safely
[INFO] [stdout]    --> exercises/08_futures/04_future/src/lib.rs:9:18
[INFO] [stdout]     |
[INFO] [stdout] 9   |     tokio::spawn(example());
[INFO] [stdout]     |                  ^^^^^^^^^ future returned by `example` is not `Send`
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<i32>`
[INFO] [stdout] note: future is not `Send` as this value is used across an await
[INFO] [stdout]    --> exercises/08_futures/04_future/src/lib.rs:14:17
[INFO] [stdout]     |
[INFO] [stdout] 13  |     let non_send = Rc::new(1);
[INFO] [stdout]     |         -------- has type `Rc<i32>` which is not `Send`
[INFO] [stdout] 14  |     yield_now().await;
[INFO] [stdout]     |                 ^^^^^ await occurs here, with `non_send` maybe used later
[INFO] [stdout] note: required by a bound in `tokio::spawn`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.39.2/src/task/spawn.rs:167:21
[INFO] [stdout]     |
[INFO] [stdout] 165 |     pub fn spawn<F>(future: F) -> JoinHandle<F::Output>
[INFO] [stdout]     |            ----- required by a bound in this function
[INFO] [stdout] 166 |     where
[INFO] [stdout] 167 |         F: Future + Send + 'static,
[INFO] [stdout]     |                     ^^^^ required by this bound in `spawn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `future` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0a8e32c2ff2c683e05b98efbb8b8bafb6aa0adab8c7f0e0a68af2db22f00c29b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8e32c2ff2c683e05b98efbb8b8bafb6aa0adab8c7f0e0a68af2db22f00c29b", kill_on_drop: false }`
[INFO] [stdout] 0a8e32c2ff2c683e05b98efbb8b8bafb6aa0adab8c7f0e0a68af2db22f00c29b
