Nov 28 03:50:21.216 INFO checking irtefa/line-chat against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 03:50:21.218 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-2/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 03:50:21.721 INFO [stdout] 316dd67ab370a236ab02664a77c4060f4537e10796cb970241fcd22302893a70
Nov 28 03:50:21.723 INFO running `"docker" "start" "-a" "316dd67ab370a236ab02664a77c4060f4537e10796cb970241fcd22302893a70"`
Nov 28 03:50:22.800 INFO [stderr] usermod: no changes
Nov 28 03:50:22.893 INFO [stderr]     Checking tokio v0.1.1
Nov 28 03:50:24.085 INFO [stderr]     Checking line-chat v0.1.0 (/source)
Nov 28 03:50:24.732 INFO [stderr] warning: unused import: `TcpStream`
Nov 28 03:50:24.732 INFO [stderr]  --> src/main.rs:9:31
Nov 28 03:50:24.732 INFO [stderr]   |
Nov 28 03:50:24.732 INFO [stderr] 9 | use tokio::net::{TcpListener, TcpStream};
Nov 28 03:50:24.732 INFO [stderr]   |                               ^^^^^^^^^
Nov 28 03:50:24.732 INFO [stderr]   |
Nov 28 03:50:24.732 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:50:24.732 INFO [stderr] 
Nov 28 03:50:24.732 INFO [stderr] warning: unused import: `AsyncRead`
Nov 28 03:50:24.732 INFO [stderr]   --> src/main.rs:10:16
Nov 28 03:50:24.732 INFO [stderr]    |
Nov 28 03:50:24.732 INFO [stderr] 10 | use tokio_io::{AsyncRead};
Nov 28 03:50:24.732 INFO [stderr]    |                ^^^^^^^^^
Nov 28 03:50:24.732 INFO [stderr] 
Nov 28 03:50:24.732 INFO [stderr] warning: unused imports: `Either`, `self`
Nov 28 03:50:24.733 INFO [stderr]   --> src/main.rs:13:23
Nov 28 03:50:24.733 INFO [stderr]    |
Nov 28 03:50:24.733 INFO [stderr] 13 | use futures::future::{self, Either};
Nov 28 03:50:24.733 INFO [stderr]    |                       ^^^^  ^^^^^^
Nov 28 03:50:24.733 INFO [stderr] 
Nov 28 03:50:24.733 INFO [stderr] warning: unused imports: `BufMut`, `BytesMut`
Nov 28 03:50:24.733 INFO [stderr]   --> src/main.rs:14:13
Nov 28 03:50:24.733 INFO [stderr]    |
Nov 28 03:50:24.733 INFO [stderr] 14 | use bytes::{BytesMut, Bytes, BufMut};
Nov 28 03:50:24.733 INFO [stderr]    |             ^^^^^^^^         ^^^^^^
Nov 28 03:50:24.733 INFO [stderr] 
Nov 28 03:50:24.733 INFO [stderr] warning: unused imports: `Write`, `self`
Nov 28 03:50:24.733 INFO [stderr]   --> src/main.rs:16:15
Nov 28 03:50:24.733 INFO [stderr]    |
Nov 28 03:50:24.733 INFO [stderr] 16 | use std::io::{self, Write};
Nov 28 03:50:24.733 INFO [stderr]    |               ^^^^  ^^^^^
Nov 28 03:50:24.733 INFO [stderr] 
Nov 28 03:50:24.733 INFO [stderr] warning: unused import: `std::cell::RefCell`
Nov 28 03:50:24.733 INFO [stderr]   --> src/main.rs:17:5
Nov 28 03:50:24.733 INFO [stderr]    |
Nov 28 03:50:24.733 INFO [stderr] 17 | use std::cell::RefCell;
Nov 28 03:50:24.733 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.733 INFO [stderr] 
Nov 28 03:50:24.733 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 03:50:24.733 INFO [stderr]   --> src/main.rs:18:5
Nov 28 03:50:24.733 INFO [stderr]    |
Nov 28 03:50:24.733 INFO [stderr] 18 | use std::collections::HashMap;
Nov 28 03:50:24.733 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.733 INFO [stderr] 
Nov 28 03:50:24.733 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 28 03:50:24.733 INFO [stderr]   --> src/main.rs:20:5
Nov 28 03:50:24.733 INFO [stderr]    |
Nov 28 03:50:24.733 INFO [stderr] 20 | use std::rc::Rc;
Nov 28 03:50:24.733 INFO [stderr]    |     ^^^^^^^^^^^
Nov 28 03:50:24.733 INFO [stderr] 
Nov 28 03:50:24.820 INFO [stderr] warning: unused import: `TcpStream`
Nov 28 03:50:24.820 INFO [stderr]  --> src/main.rs:9:31
Nov 28 03:50:24.820 INFO [stderr]   |
Nov 28 03:50:24.820 INFO [stderr] 9 | use tokio::net::{TcpListener, TcpStream};
Nov 28 03:50:24.820 INFO [stderr]   |                               ^^^^^^^^^
Nov 28 03:50:24.820 INFO [stderr] warning: unused variable: `socket`
Nov 28 03:50:24.820 INFO [stderr]   --> src/main.rs:33:53
Nov 28 03:50:24.820 INFO [stderr]    |
Nov 28 03:50:24.820 INFO [stderr] 33 |     let server = listener.incoming().for_each(move |socket| {
Nov 28 03:50:24.820 INFO [stderr]    |                                                     ^^^^^^ help: consider using `_socket` instead
Nov 28 03:50:24.820 INFO [stderr]    |
Nov 28 03:50:24.820 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:50:24.820 INFO [stderr] 
Nov 28 03:50:24.828 INFO [stderr] warning: type alias is never used: `Tx`
Nov 28 03:50:24.828 INFO [stderr]   --> src/main.rs:23:1
Nov 28 03:50:24.828 INFO [stderr]    |
Nov 28 03:50:24.828 INFO [stderr] 23 | type Tx = mpsc::UnboundedSender<Bytes>;
Nov 28 03:50:24.828 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.828 INFO [stderr]    |
Nov 28 03:50:24.828 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 03:50:24.828 INFO [stderr] 
Nov 28 03:50:24.828 INFO [stderr] warning: type alias is never used: `Rx`
Nov 28 03:50:24.828 INFO [stderr]   --> src/main.rs:26:1
Nov 28 03:50:24.828 INFO [stderr]    |
Nov 28 03:50:24.828 INFO [stderr] 26 | type Rx = mpsc::UnboundedReceiver<Bytes>;
Nov 28 03:50:24.829 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr]   |
Nov 28 03:50:24.829 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr] warning: unused import: `AsyncRead`
Nov 28 03:50:24.829 INFO [stderr]   --> src/main.rs:10:16
Nov 28 03:50:24.829 INFO [stderr]    |
Nov 28 03:50:24.829 INFO [stderr] 10 | use tokio_io::{AsyncRead};
Nov 28 03:50:24.829 INFO [stderr]    |                ^^^^^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr] warning: unused imports: `Either`, `self`
Nov 28 03:50:24.829 INFO [stderr]   --> src/main.rs:13:23
Nov 28 03:50:24.829 INFO [stderr]    |
Nov 28 03:50:24.829 INFO [stderr] 13 | use futures::future::{self, Either};
Nov 28 03:50:24.829 INFO [stderr]    |                       ^^^^  ^^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr] warning: unused imports: `BufMut`, `BytesMut`
Nov 28 03:50:24.829 INFO [stderr]   --> src/main.rs:14:13
Nov 28 03:50:24.829 INFO [stderr]    |
Nov 28 03:50:24.829 INFO [stderr] 14 | use bytes::{BytesMut, Bytes, BufMut};
Nov 28 03:50:24.829 INFO [stderr]    |             ^^^^^^^^         ^^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr] warning: unused imports: `Write`, `self`
Nov 28 03:50:24.829 INFO [stderr]   --> src/main.rs:16:15
Nov 28 03:50:24.829 INFO [stderr]    |
Nov 28 03:50:24.829 INFO [stderr] 16 | use std::io::{self, Write};
Nov 28 03:50:24.829 INFO [stderr]    |               ^^^^  ^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr] warning: unused import: `std::cell::RefCell`
Nov 28 03:50:24.829 INFO [stderr]   --> src/main.rs:17:5
Nov 28 03:50:24.829 INFO [stderr]    |
Nov 28 03:50:24.829 INFO [stderr] 17 | use std::cell::RefCell;
Nov 28 03:50:24.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr] warning: unused import: `std::collections::HashMap`
Nov 28 03:50:24.829 INFO [stderr]   --> src/main.rs:18:5
Nov 28 03:50:24.829 INFO [stderr]    |
Nov 28 03:50:24.829 INFO [stderr] 18 | use std::collections::HashMap;
Nov 28 03:50:24.829 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.829 INFO [stderr] warning: unused import: `std::rc::Rc`
Nov 28 03:50:24.829 INFO [stderr]   --> src/main.rs:20:5
Nov 28 03:50:24.829 INFO [stderr]    |
Nov 28 03:50:24.829 INFO [stderr] 20 | use std::rc::Rc;
Nov 28 03:50:24.829 INFO [stderr]    |     ^^^^^^^^^^^
Nov 28 03:50:24.829 INFO [stderr] 
Nov 28 03:50:24.876 INFO [stderr] warning: unused variable: `socket`
Nov 28 03:50:24.876 INFO [stderr]   --> src/main.rs:33:53
Nov 28 03:50:24.876 INFO [stderr]    |
Nov 28 03:50:24.876 INFO [stderr] 33 |     let server = listener.incoming().for_each(move |socket| {
Nov 28 03:50:24.876 INFO [stderr]    |                                                     ^^^^^^ help: consider using `_socket` instead
Nov 28 03:50:24.876 INFO [stderr]    |
Nov 28 03:50:24.876 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:50:24.876 INFO [stderr] 
Nov 28 03:50:24.882 INFO [stderr] warning: type alias is never used: `Tx`
Nov 28 03:50:24.882 INFO [stderr]   --> src/main.rs:23:1
Nov 28 03:50:24.882 INFO [stderr]    |
Nov 28 03:50:24.882 INFO [stderr] 23 | type Tx = mpsc::UnboundedSender<Bytes>;
Nov 28 03:50:24.882 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.882 INFO [stderr]    |
Nov 28 03:50:24.882 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 03:50:24.882 INFO [stderr] 
Nov 28 03:50:24.882 INFO [stderr] warning: type alias is never used: `Rx`
Nov 28 03:50:24.882 INFO [stderr]   --> src/main.rs:26:1
Nov 28 03:50:24.882 INFO [stderr]    |
Nov 28 03:50:24.882 INFO [stderr] 26 | type Rx = mpsc::UnboundedReceiver<Bytes>;
Nov 28 03:50:24.882 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:50:24.882 INFO [stderr] 
Nov 28 03:50:24.894 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
Nov 28 03:50:24.898 INFO [stderr] su: No module specific data is present
Nov 28 03:50:25.493 INFO running `"docker" "inspect" "316dd67ab370a236ab02664a77c4060f4537e10796cb970241fcd22302893a70"`
Nov 28 03:50:25.830 INFO running `"docker" "rm" "-f" "316dd67ab370a236ab02664a77c4060f4537e10796cb970241fcd22302893a70"`
Nov 28 03:50:26.198 INFO [stdout] 316dd67ab370a236ab02664a77c4060f4537e10796cb970241fcd22302893a70