Dec 19 15:37:19.853 INFO checking irtefa/line-chat against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:37:19.853 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/irtefa/line-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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:37:20.251 INFO [stdout] f80381a1f6acd3c53f71eacb0f463ba51a2f0732582815eca00228c63cb6eb55
Dec 19 15:37:20.252 INFO running `"docker" "start" "-a" "f80381a1f6acd3c53f71eacb0f463ba51a2f0732582815eca00228c63cb6eb55"`
Dec 19 15:37:21.968 INFO [stderr]     Checking tokio v0.1.1
Dec 19 15:37:22.968 INFO [stderr]     Checking line-chat v0.1.0 (/opt/crater/workdir)
Dec 19 15:37:23.288 INFO [stderr] warning: unused import: `TcpStream`
Dec 19 15:37:23.288 INFO [stderr]  --> src/main.rs:9:31
Dec 19 15:37:23.288 INFO [stderr]   |
Dec 19 15:37:23.288 INFO [stderr] 9 | use tokio::net::{TcpListener, TcpStream};
Dec 19 15:37:23.288 INFO [stderr]   |                               ^^^^^^^^^
Dec 19 15:37:23.288 INFO [stderr]   |
Dec 19 15:37:23.288 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:37:23.288 INFO [stderr] 
Dec 19 15:37:23.288 INFO [stderr] warning: unused import: `AsyncRead`
Dec 19 15:37:23.288 INFO [stderr]   --> src/main.rs:10:16
Dec 19 15:37:23.288 INFO [stderr]    |
Dec 19 15:37:23.288 INFO [stderr] 10 | use tokio_io::{AsyncRead};
Dec 19 15:37:23.288 INFO [stderr]    |                ^^^^^^^^^
Dec 19 15:37:23.288 INFO [stderr] 
Dec 19 15:37:23.288 INFO [stderr] warning: unused imports: `Either`, `self`
Dec 19 15:37:23.288 INFO [stderr]   --> src/main.rs:13:23
Dec 19 15:37:23.288 INFO [stderr]    |
Dec 19 15:37:23.288 INFO [stderr] 13 | use futures::future::{self, Either};
Dec 19 15:37:23.288 INFO [stderr]    |                       ^^^^  ^^^^^^
Dec 19 15:37:23.288 INFO [stderr] 
Dec 19 15:37:23.288 INFO [stderr] warning: unused imports: `BufMut`, `BytesMut`
Dec 19 15:37:23.288 INFO [stderr]   --> src/main.rs:14:13
Dec 19 15:37:23.288 INFO [stderr]    |
Dec 19 15:37:23.288 INFO [stderr] 14 | use bytes::{BytesMut, Bytes, BufMut};
Dec 19 15:37:23.289 INFO [stderr]    |             ^^^^^^^^         ^^^^^^
Dec 19 15:37:23.289 INFO [stderr] 
Dec 19 15:37:23.289 INFO [stderr] warning: unused imports: `Write`, `self`
Dec 19 15:37:23.289 INFO [stderr]   --> src/main.rs:16:15
Dec 19 15:37:23.289 INFO [stderr]    |
Dec 19 15:37:23.289 INFO [stderr] 16 | use std::io::{self, Write};
Dec 19 15:37:23.289 INFO [stderr]    |               ^^^^  ^^^^^
Dec 19 15:37:23.289 INFO [stderr] 
Dec 19 15:37:23.289 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 19 15:37:23.289 INFO [stderr]   --> src/main.rs:17:5
Dec 19 15:37:23.289 INFO [stderr]    |
Dec 19 15:37:23.289 INFO [stderr] 17 | use std::cell::RefCell;
Dec 19 15:37:23.289 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.289 INFO [stderr] 
Dec 19 15:37:23.289 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 19 15:37:23.289 INFO [stderr]   --> src/main.rs:18:5
Dec 19 15:37:23.289 INFO [stderr]    |
Dec 19 15:37:23.289 INFO [stderr] 18 | use std::collections::HashMap;
Dec 19 15:37:23.289 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.289 INFO [stderr] 
Dec 19 15:37:23.289 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 19 15:37:23.289 INFO [stderr]   --> src/main.rs:20:5
Dec 19 15:37:23.289 INFO [stderr]    |
Dec 19 15:37:23.289 INFO [stderr] 20 | use std::rc::Rc;
Dec 19 15:37:23.289 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 15:37:23.289 INFO [stderr] 
Dec 19 15:37:23.316 INFO [stderr] warning: unused variable: `socket`
Dec 19 15:37:23.316 INFO [stderr]   --> src/main.rs:33:53
Dec 19 15:37:23.316 INFO [stderr]    |
Dec 19 15:37:23.316 INFO [stderr] 33 |     let server = listener.incoming().for_each(move |socket| {
Dec 19 15:37:23.316 INFO [stderr]    |                                                     ^^^^^^ help: consider using `_socket` instead
Dec 19 15:37:23.316 INFO [stderr]    |
Dec 19 15:37:23.316 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:37:23.316 INFO [stderr] 
Dec 19 15:37:23.321 INFO [stderr] warning: type alias is never used: `Tx`
Dec 19 15:37:23.321 INFO [stderr]   --> src/main.rs:23:1
Dec 19 15:37:23.321 INFO [stderr]    |
Dec 19 15:37:23.322 INFO [stderr] 23 | type Tx = mpsc::UnboundedSender<Bytes>;
Dec 19 15:37:23.322 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.322 INFO [stderr]    |
Dec 19 15:37:23.322 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 15:37:23.322 INFO [stderr] 
Dec 19 15:37:23.322 INFO [stderr] warning: type alias is never used: `Rx`
Dec 19 15:37:23.322 INFO [stderr]   --> src/main.rs:26:1
Dec 19 15:37:23.322 INFO [stderr]    |
Dec 19 15:37:23.322 INFO [stderr] 26 | type Rx = mpsc::UnboundedReceiver<Bytes>;
Dec 19 15:37:23.322 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.322 INFO [stderr] 
Dec 19 15:37:23.404 INFO [stderr] warning: unused import: `TcpStream`
Dec 19 15:37:23.404 INFO [stderr]  --> src/main.rs:9:31
Dec 19 15:37:23.404 INFO [stderr]   |
Dec 19 15:37:23.404 INFO [stderr] 9 | use tokio::net::{TcpListener, TcpStream};
Dec 19 15:37:23.404 INFO [stderr]   |                               ^^^^^^^^^
Dec 19 15:37:23.404 INFO [stderr]   |
Dec 19 15:37:23.404 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 15:37:23.404 INFO [stderr] 
Dec 19 15:37:23.404 INFO [stderr] warning: unused import: `AsyncRead`
Dec 19 15:37:23.404 INFO [stderr]   --> src/main.rs:10:16
Dec 19 15:37:23.404 INFO [stderr]    |
Dec 19 15:37:23.404 INFO [stderr] 10 | use tokio_io::{AsyncRead};
Dec 19 15:37:23.404 INFO [stderr]    |                ^^^^^^^^^
Dec 19 15:37:23.404 INFO [stderr] 
Dec 19 15:37:23.404 INFO [stderr] warning: unused imports: `Either`, `self`
Dec 19 15:37:23.404 INFO [stderr]   --> src/main.rs:13:23
Dec 19 15:37:23.404 INFO [stderr]    |
Dec 19 15:37:23.404 INFO [stderr] 13 | use futures::future::{self, Either};
Dec 19 15:37:23.404 INFO [stderr]    |                       ^^^^  ^^^^^^
Dec 19 15:37:23.404 INFO [stderr] 
Dec 19 15:37:23.404 INFO [stderr] warning: unused imports: `BufMut`, `BytesMut`
Dec 19 15:37:23.404 INFO [stderr]   --> src/main.rs:14:13
Dec 19 15:37:23.404 INFO [stderr]    |
Dec 19 15:37:23.404 INFO [stderr] 14 | use bytes::{BytesMut, Bytes, BufMut};
Dec 19 15:37:23.404 INFO [stderr]    |             ^^^^^^^^         ^^^^^^
Dec 19 15:37:23.404 INFO [stderr] 
Dec 19 15:37:23.404 INFO [stderr] warning: unused imports: `Write`, `self`
Dec 19 15:37:23.404 INFO [stderr]   --> src/main.rs:16:15
Dec 19 15:37:23.404 INFO [stderr]    |
Dec 19 15:37:23.404 INFO [stderr] 16 | use std::io::{self, Write};
Dec 19 15:37:23.404 INFO [stderr]    |               ^^^^  ^^^^^
Dec 19 15:37:23.404 INFO [stderr] 
Dec 19 15:37:23.404 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 19 15:37:23.404 INFO [stderr]   --> src/main.rs:17:5
Dec 19 15:37:23.404 INFO [stderr]    |
Dec 19 15:37:23.404 INFO [stderr] 17 | use std::cell::RefCell;
Dec 19 15:37:23.404 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.404 INFO [stderr] 
Dec 19 15:37:23.404 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 19 15:37:23.404 INFO [stderr]   --> src/main.rs:18:5
Dec 19 15:37:23.404 INFO [stderr]    |
Dec 19 15:37:23.405 INFO [stderr] 18 | use std::collections::HashMap;
Dec 19 15:37:23.405 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.405 INFO [stderr] 
Dec 19 15:37:23.405 INFO [stderr] warning: unused import: `std::rc::Rc`
Dec 19 15:37:23.405 INFO [stderr]   --> src/main.rs:20:5
Dec 19 15:37:23.405 INFO [stderr]    |
Dec 19 15:37:23.405 INFO [stderr] 20 | use std::rc::Rc;
Dec 19 15:37:23.405 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 15:37:23.405 INFO [stderr] 
Dec 19 15:37:23.452 INFO [stderr] warning: unused variable: `socket`
Dec 19 15:37:23.453 INFO [stderr]   --> src/main.rs:33:53
Dec 19 15:37:23.453 INFO [stderr]    |
Dec 19 15:37:23.453 INFO [stderr] 33 |     let server = listener.incoming().for_each(move |socket| {
Dec 19 15:37:23.453 INFO [stderr]    |                                                     ^^^^^^ help: consider using `_socket` instead
Dec 19 15:37:23.453 INFO [stderr]    |
Dec 19 15:37:23.453 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 15:37:23.453 INFO [stderr] 
Dec 19 15:37:23.453 INFO [stderr] warning: type alias is never used: `Tx`
Dec 19 15:37:23.453 INFO [stderr]   --> src/main.rs:23:1
Dec 19 15:37:23.453 INFO [stderr]    |
Dec 19 15:37:23.453 INFO [stderr] 23 | type Tx = mpsc::UnboundedSender<Bytes>;
Dec 19 15:37:23.454 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.454 INFO [stderr]    |
Dec 19 15:37:23.454 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 15:37:23.454 INFO [stderr] 
Dec 19 15:37:23.454 INFO [stderr] warning: type alias is never used: `Rx`
Dec 19 15:37:23.454 INFO [stderr]   --> src/main.rs:26:1
Dec 19 15:37:23.454 INFO [stderr]    |
Dec 19 15:37:23.454 INFO [stderr] 26 | type Rx = mpsc::UnboundedReceiver<Bytes>;
Dec 19 15:37:23.454 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:37:23.454 INFO [stderr] 
Dec 19 15:37:23.485 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
Dec 19 15:37:24.138 INFO running `"docker" "inspect" "f80381a1f6acd3c53f71eacb0f463ba51a2f0732582815eca00228c63cb6eb55"`
Dec 19 15:37:24.330 INFO running `"docker" "rm" "-f" "f80381a1f6acd3c53f71eacb0f463ba51a2f0732582815eca00228c63cb6eb55"`
Dec 19 15:37:24.556 INFO [stdout] f80381a1f6acd3c53f71eacb0f463ba51a2f0732582815eca00228c63cb6eb55