Dec 05 02:41:02.794 INFO checking EmmaLa/tokio-chat against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 02:41:02.794 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 02:41:03.377 INFO [stdout] aee6cda1be626f3097b609c155a3e83bf5070a9ab1d1f562002f990ac6ff9541
Dec 05 02:41:03.379 INFO running `"docker" "start" "-a" "aee6cda1be626f3097b609c155a3e83bf5070a9ab1d1f562002f990ac6ff9541"`
Dec 05 02:41:05.691 INFO [stderr] usermod: no changes
Dec 05 02:41:05.895 INFO [stderr]     Checking tokio v0.1.1
Dec 05 02:41:08.191 INFO [stderr]     Checking tokio-chat v0.1.0 (/source)
Dec 05 02:41:09.736 INFO [stderr] warning: unused import: `AsyncWrite`
Dec 05 02:41:09.736 INFO [stderr]  --> src/main.rs:9:28
Dec 05 02:41:09.736 INFO [stderr]   |
Dec 05 02:41:09.736 INFO [stderr] 9 | use tokio_io::{ AsyncRead, AsyncWrite};
Dec 05 02:41:09.736 INFO [stderr]   |                            ^^^^^^^^^^
Dec 05 02:41:09.736 INFO [stderr]   |
Dec 05 02:41:09.736 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:41:09.736 INFO [stderr] 
Dec 05 02:41:09.736 INFO [stderr] warning: unused import: `Write`
Dec 05 02:41:09.736 INFO [stderr]   --> src/main.rs:16:15
Dec 05 02:41:09.736 INFO [stderr]    |
Dec 05 02:41:09.736 INFO [stderr] 16 | use std::io::{Write};
Dec 05 02:41:09.736 INFO [stderr]    |               ^^^^^
Dec 05 02:41:09.736 INFO [stderr] 
Dec 05 02:41:09.736 INFO [stderr] warning: unused import: `std::sync::Arc`
Dec 05 02:41:09.736 INFO [stderr]   --> src/main.rs:17:5
Dec 05 02:41:09.736 INFO [stderr]    |
Dec 05 02:41:09.736 INFO [stderr] 17 | use std::sync::Arc;
Dec 05 02:41:09.736 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 05 02:41:09.736 INFO [stderr] 
Dec 05 02:41:09.736 INFO [stderr] warning: unused import: `std::sync::Mutex`
Dec 05 02:41:09.736 INFO [stderr]   --> src/main.rs:18:5
Dec 05 02:41:09.736 INFO [stderr]    |
Dec 05 02:41:09.736 INFO [stderr] 18 | use std::sync::Mutex;
Dec 05 02:41:09.736 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 05 02:41:09.736 INFO [stderr] 
Dec 05 02:41:09.775 INFO [stderr] warning: unused import: `AsyncWrite`
Dec 05 02:41:09.775 INFO [stderr]  --> src/main.rs:9:28
Dec 05 02:41:09.775 INFO [stderr]   |
Dec 05 02:41:09.775 INFO [stderr] 9 | use tokio_io::{ AsyncRead, AsyncWrite};
Dec 05 02:41:09.775 INFO [stderr]   |                            ^^^^^^^^^^
Dec 05 02:41:09.775 INFO [stderr]   |
Dec 05 02:41:09.775 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:41:09.775 INFO [stderr] 
Dec 05 02:41:09.775 INFO [stderr] warning: unused import: `Write`
Dec 05 02:41:09.775 INFO [stderr]   --> src/main.rs:16:15
Dec 05 02:41:09.775 INFO [stderr]    |
Dec 05 02:41:09.775 INFO [stderr] 16 | use std::io::{Write};
Dec 05 02:41:09.775 INFO [stderr]    |               ^^^^^
Dec 05 02:41:09.775 INFO [stderr] 
Dec 05 02:41:09.775 INFO [stderr] warning: unused import: `std::sync::Arc`
Dec 05 02:41:09.775 INFO [stderr]   --> src/main.rs:17:5
Dec 05 02:41:09.775 INFO [stderr]    |
Dec 05 02:41:09.775 INFO [stderr] 17 | use std::sync::Arc;
Dec 05 02:41:09.775 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 05 02:41:09.775 INFO [stderr] 
Dec 05 02:41:09.775 INFO [stderr] warning: unused import: `std::sync::Mutex`
Dec 05 02:41:09.776 INFO [stderr]   --> src/main.rs:18:5
Dec 05 02:41:09.776 INFO [stderr]    |
Dec 05 02:41:09.776 INFO [stderr] 18 | use std::sync::Mutex;
Dec 05 02:41:09.776 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 05 02:41:09.776 INFO [stderr] 
Dec 05 02:41:09.821 INFO [stderr] warning: variable does not need to be mutable
Dec 05 02:41:09.821 INFO [stderr]    --> src/main.rs:119:13
Dec 05 02:41:09.821 INFO [stderr]     |
Dec 05 02:41:09.821 INFO [stderr] 119 |         let mut chuck_data = chunk_data.for_each(move |data| {
Dec 05 02:41:09.821 INFO [stderr]     |             ----^^^^^^^^^^
Dec 05 02:41:09.821 INFO [stderr]     |             |
Dec 05 02:41:09.821 INFO [stderr]     |             help: remove this `mut`
Dec 05 02:41:09.821 INFO [stderr]     |
Dec 05 02:41:09.821 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 02:41:09.821 INFO [stderr] 
Dec 05 02:41:09.822 INFO [stderr] warning: type alias is never used: `Rx`
Dec 05 02:41:09.822 INFO [stderr]   --> src/main.rs:28:1
Dec 05 02:41:09.822 INFO [stderr]    |
Dec 05 02:41:09.822 INFO [stderr] 28 | type Rx = mpsc::UnboundedReceiver<BytesMut>;
Dec 05 02:41:09.823 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:41:09.823 INFO [stderr]    |
Dec 05 02:41:09.823 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:41:09.824 INFO [stderr] 
Dec 05 02:41:09.824 INFO [stderr] warning: field is never used: `state`
Dec 05 02:41:09.824 INFO [stderr]   --> src/main.rs:37:5
Dec 05 02:41:09.824 INFO [stderr]    |
Dec 05 02:41:09.825 INFO [stderr] 37 |     state: Rc<RefCell<SharedState>>
Dec 05 02:41:09.825 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:41:09.825 INFO [stderr] 
Dec 05 02:41:09.983 INFO [stderr] warning: variable does not need to be mutable
Dec 05 02:41:09.983 INFO [stderr]    --> src/main.rs:119:13
Dec 05 02:41:09.983 INFO [stderr]     |
Dec 05 02:41:09.983 INFO [stderr] 119 |         let mut chuck_data = chunk_data.for_each(move |data| {
Dec 05 02:41:09.983 INFO [stderr]     |             ----^^^^^^^^^^
Dec 05 02:41:09.983 INFO [stderr]     |             |
Dec 05 02:41:09.983 INFO [stderr]     |             help: remove this `mut`
Dec 05 02:41:09.983 INFO [stderr]     |
Dec 05 02:41:09.983 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 02:41:09.983 INFO [stderr] 
Dec 05 02:41:09.983 INFO [stderr] warning: type alias is never used: `Rx`
Dec 05 02:41:09.983 INFO [stderr]   --> src/main.rs:28:1
Dec 05 02:41:09.983 INFO [stderr]    |
Dec 05 02:41:09.983 INFO [stderr] 28 | type Rx = mpsc::UnboundedReceiver<BytesMut>;
Dec 05 02:41:09.983 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:41:09.983 INFO [stderr]    |
Dec 05 02:41:09.983 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 02:41:09.983 INFO [stderr] 
Dec 05 02:41:09.983 INFO [stderr] warning: field is never used: `state`
Dec 05 02:41:09.983 INFO [stderr]   --> src/main.rs:37:5
Dec 05 02:41:09.983 INFO [stderr]    |
Dec 05 02:41:09.983 INFO [stderr] 37 |     state: Rc<RefCell<SharedState>>
Dec 05 02:41:09.983 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 02:41:09.983 INFO [stderr] 
Dec 05 02:41:10.007 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
Dec 05 02:41:10.011 INFO [stderr] su: No module specific data is present
Dec 05 02:41:11.175 INFO running `"docker" "inspect" "aee6cda1be626f3097b609c155a3e83bf5070a9ab1d1f562002f990ac6ff9541"`
Dec 05 02:41:11.537 INFO running `"docker" "rm" "-f" "aee6cda1be626f3097b609c155a3e83bf5070a9ab1d1f562002f990ac6ff9541"`
Dec 05 02:41:11.879 INFO [stdout] aee6cda1be626f3097b609c155a3e83bf5070a9ab1d1f562002f990ac6ff9541