Dec 18 07:49:03.793 INFO checking EmmaLa/tokio-chat against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 07:49:03.793 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/EmmaLa/tokio-chat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:49:04.422 INFO [stdout] f4bd41b8a22cfcebbf455af97270bae0d76840030fb92f8621c7a6829fd4c652
Dec 18 07:49:04.424 INFO running `"docker" "start" "-a" "f4bd41b8a22cfcebbf455af97270bae0d76840030fb92f8621c7a6829fd4c652"`
Dec 18 07:49:06.814 INFO [stderr]     Checking tokio-chat v0.1.0 (/opt/crater/workdir)
Dec 18 07:49:07.548 INFO [stderr] warning: unused import: `AsyncWrite`
Dec 18 07:49:07.549 INFO [stderr]  --> src/main.rs:9:28
Dec 18 07:49:07.549 INFO [stderr]   |
Dec 18 07:49:07.549 INFO [stderr] 9 | use tokio_io::{ AsyncRead, AsyncWrite};
Dec 18 07:49:07.550 INFO [stderr]   |                            ^^^^^^^^^^
Dec 18 07:49:07.550 INFO [stderr]   |
Dec 18 07:49:07.550 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:49:07.550 INFO [stderr] 
Dec 18 07:49:07.551 INFO [stderr] warning: unused import: `Write`
Dec 18 07:49:07.551 INFO [stderr]   --> src/main.rs:16:15
Dec 18 07:49:07.551 INFO [stderr]    |
Dec 18 07:49:07.552 INFO [stderr] 16 | use std::io::{Write};
Dec 18 07:49:07.552 INFO [stderr]    |               ^^^^^
Dec 18 07:49:07.552 INFO [stderr] 
Dec 18 07:49:07.552 INFO [stderr] warning: unused import: `std::sync::Arc`
Dec 18 07:49:07.553 INFO [stderr]   --> src/main.rs:17:5
Dec 18 07:49:07.553 INFO [stderr]    |
Dec 18 07:49:07.553 INFO [stderr] 17 | use std::sync::Arc;
Dec 18 07:49:07.554 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 07:49:07.554 INFO [stderr] 
Dec 18 07:49:07.554 INFO [stderr] warning: unused import: `std::sync::Mutex`
Dec 18 07:49:07.554 INFO [stderr]   --> src/main.rs:18:5
Dec 18 07:49:07.555 INFO [stderr]    |
Dec 18 07:49:07.555 INFO [stderr] 18 | use std::sync::Mutex;
Dec 18 07:49:07.555 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 07:49:07.555 INFO [stderr] 
Dec 18 07:49:07.560 INFO [stderr] warning: unused import: `AsyncWrite`
Dec 18 07:49:07.560 INFO [stderr]  --> src/main.rs:9:28
Dec 18 07:49:07.561 INFO [stderr]   |
Dec 18 07:49:07.561 INFO [stderr] 9 | use tokio_io::{ AsyncRead, AsyncWrite};
Dec 18 07:49:07.561 INFO [stderr]   |                            ^^^^^^^^^^
Dec 18 07:49:07.561 INFO [stderr]   |
Dec 18 07:49:07.561 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:49:07.561 INFO [stderr] 
Dec 18 07:49:07.561 INFO [stderr] warning: unused import: `Write`
Dec 18 07:49:07.561 INFO [stderr]   --> src/main.rs:16:15
Dec 18 07:49:07.561 INFO [stderr]    |
Dec 18 07:49:07.561 INFO [stderr] 16 | use std::io::{Write};
Dec 18 07:49:07.561 INFO [stderr]    |               ^^^^^
Dec 18 07:49:07.561 INFO [stderr] 
Dec 18 07:49:07.561 INFO [stderr] warning: unused import: `std::sync::Arc`
Dec 18 07:49:07.561 INFO [stderr]   --> src/main.rs:17:5
Dec 18 07:49:07.561 INFO [stderr]    |
Dec 18 07:49:07.561 INFO [stderr] 17 | use std::sync::Arc;
Dec 18 07:49:07.561 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 18 07:49:07.561 INFO [stderr] 
Dec 18 07:49:07.561 INFO [stderr] warning: unused import: `std::sync::Mutex`
Dec 18 07:49:07.561 INFO [stderr]   --> src/main.rs:18:5
Dec 18 07:49:07.561 INFO [stderr]    |
Dec 18 07:49:07.561 INFO [stderr] 18 | use std::sync::Mutex;
Dec 18 07:49:07.561 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 18 07:49:07.561 INFO [stderr] 
Dec 18 07:49:07.743 INFO [stderr] warning: variable does not need to be mutable
Dec 18 07:49:07.743 INFO [stderr]    --> src/main.rs:119:13
Dec 18 07:49:07.743 INFO [stderr]     |
Dec 18 07:49:07.743 INFO [stderr] 119 |         let mut chuck_data = chunk_data.for_each(move |data| {
Dec 18 07:49:07.743 INFO [stderr]     |             ----^^^^^^^^^^
Dec 18 07:49:07.743 INFO [stderr]     |             |
Dec 18 07:49:07.743 INFO [stderr]     |             help: remove this `mut`
Dec 18 07:49:07.743 INFO [stderr]     |
Dec 18 07:49:07.743 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 07:49:07.743 INFO [stderr] 
Dec 18 07:49:07.749 INFO [stderr] warning: type alias is never used: `Rx`
Dec 18 07:49:07.749 INFO [stderr]   --> src/main.rs:28:1
Dec 18 07:49:07.749 INFO [stderr]    |
Dec 18 07:49:07.749 INFO [stderr] 28 | type Rx = mpsc::UnboundedReceiver<BytesMut>;
Dec 18 07:49:07.749 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:49:07.749 INFO [stderr]    |
Dec 18 07:49:07.750 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 07:49:07.750 INFO [stderr] 
Dec 18 07:49:07.750 INFO [stderr] warning: field is never used: `state`
Dec 18 07:49:07.750 INFO [stderr]   --> src/main.rs:37:5
Dec 18 07:49:07.750 INFO [stderr]    |
Dec 18 07:49:07.750 INFO [stderr] 37 |     state: Rc<RefCell<SharedState>>
Dec 18 07:49:07.750 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:49:07.750 INFO [stderr] 
Dec 18 07:49:07.783 INFO [stderr] warning: variable does not need to be mutable
Dec 18 07:49:07.783 INFO [stderr]    --> src/main.rs:119:13
Dec 18 07:49:07.783 INFO [stderr]     |
Dec 18 07:49:07.783 INFO [stderr] 119 |         let mut chuck_data = chunk_data.for_each(move |data| {
Dec 18 07:49:07.783 INFO [stderr]     |             ----^^^^^^^^^^
Dec 18 07:49:07.783 INFO [stderr]     |             |
Dec 18 07:49:07.783 INFO [stderr]     |             help: remove this `mut`
Dec 18 07:49:07.783 INFO [stderr]     |
Dec 18 07:49:07.783 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 07:49:07.783 INFO [stderr] 
Dec 18 07:49:07.783 INFO [stderr] warning: type alias is never used: `Rx`
Dec 18 07:49:07.783 INFO [stderr]   --> src/main.rs:28:1
Dec 18 07:49:07.783 INFO [stderr]    |
Dec 18 07:49:07.783 INFO [stderr] 28 | type Rx = mpsc::UnboundedReceiver<BytesMut>;
Dec 18 07:49:07.783 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:49:07.784 INFO [stderr]    |
Dec 18 07:49:07.784 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 07:49:07.784 INFO [stderr] 
Dec 18 07:49:07.784 INFO [stderr] warning: field is never used: `state`
Dec 18 07:49:07.784 INFO [stderr]   --> src/main.rs:37:5
Dec 18 07:49:07.784 INFO [stderr]    |
Dec 18 07:49:07.785 INFO [stderr] 37 |     state: Rc<RefCell<SharedState>>
Dec 18 07:49:07.785 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 07:49:07.785 INFO [stderr] 
Dec 18 07:49:07.852 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 18 07:49:09.580 INFO running `"docker" "inspect" "f4bd41b8a22cfcebbf455af97270bae0d76840030fb92f8621c7a6829fd4c652"`
Dec 18 07:49:09.914 INFO running `"docker" "rm" "-f" "f4bd41b8a22cfcebbf455af97270bae0d76840030fb92f8621c7a6829fd4c652"`
Dec 18 07:49:10.184 INFO [stdout] f4bd41b8a22cfcebbf455af97270bae0d76840030fb92f8621c7a6829fd4c652