Nov 28 15:38:53.727 INFO checking way-cooler-ipc-0.0.0 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 15:38:53.727 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 15:38:54.181 INFO [stdout] 77334c4ac493e33937f49a1b35ff05b900ef4317089a75d4a58de166aba6f6eb
Nov 28 15:38:54.184 INFO running `"docker" "start" "-a" "77334c4ac493e33937f49a1b35ff05b900ef4317089a75d4a58de166aba6f6eb"`
Nov 28 15:38:54.645 INFO [stderr] usermod: no changes
Nov 28 15:38:54.679 INFO [stderr]     Checking unix_socket v0.5.0
Nov 28 15:38:55.318 INFO [stderr]     Checking way-cooler-ipc v0.0.0 (/source)
Nov 28 15:38:55.816 INFO [stderr] warning: unused import: `ToJson`
Nov 28 15:38:55.816 INFO [stderr]  --> src/message.rs:5:35
Nov 28 15:38:55.816 INFO [stderr]   |
Nov 28 15:38:55.816 INFO [stderr] 5 | use rustc_serialize::json::{Json, ToJson};
Nov 28 15:38:55.816 INFO [stderr]   |                                   ^^^^^^
Nov 28 15:38:55.816 INFO [stderr]   |
Nov 28 15:38:55.816 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 15:38:55.816 INFO [stderr] 
Nov 28 15:38:55.816 INFO [stderr] warning: unused imports: `Read`, `Write`
Nov 28 15:38:55.816 INFO [stderr]  --> src/command.rs:5:15
Nov 28 15:38:55.816 INFO [stderr]   |
Nov 28 15:38:55.816 INFO [stderr] 5 | use std::io::{Read, Write};
Nov 28 15:38:55.816 INFO [stderr]   |               ^^^^  ^^^^^
Nov 28 15:38:55.816 INFO [stderr] 
Nov 28 15:38:55.816 INFO [stderr] warning: unused import: `std::io::Error as IOError`
Nov 28 15:38:55.816 INFO [stderr]  --> src/command.rs:7:5
Nov 28 15:38:55.816 INFO [stderr]   |
Nov 28 15:38:55.816 INFO [stderr] 7 | use std::io::Error as IOError;
Nov 28 15:38:55.816 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.816 INFO [stderr] 
Nov 28 15:38:55.936 INFO [stderr] warning: unused variable: `command`
Nov 28 15:38:55.936 INFO [stderr]   --> src/command.rs:22:17
Nov 28 15:38:55.936 INFO [stderr]    |
Nov 28 15:38:55.936 INFO [stderr] 22 |     pub fn send(command: Command) -> CommandResult {
Nov 28 15:38:55.936 INFO [stderr]    |                 ^^^^^^^ help: consider using `_command` instead
Nov 28 15:38:55.936 INFO [stderr]    |
Nov 28 15:38:55.936 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 15:38:55.936 INFO [stderr] 
Nov 28 15:38:55.968 INFO [stderr] warning: enum is never used: `SendError`
Nov 28 15:38:55.968 INFO [stderr]   --> src/client.rs:14:1
Nov 28 15:38:55.968 INFO [stderr]    |
Nov 28 15:38:55.968 INFO [stderr] 14 | pub enum SendError {
Nov 28 15:38:55.968 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.968 INFO [stderr]    |
Nov 28 15:38:55.968 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 15:38:55.968 INFO [stderr] 
Nov 28 15:38:55.968 INFO [stderr] warning: enum is never used: `ReceiveError`
Nov 28 15:38:55.968 INFO [stderr]   --> src/client.rs:22:1
Nov 28 15:38:55.968 INFO [stderr]    |
Nov 28 15:38:55.968 INFO [stderr] 22 | pub enum ReceiveError {
Nov 28 15:38:55.968 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.968 INFO [stderr] 
Nov 28 15:38:55.970 INFO [stderr] warning: field is never used: `stream`
Nov 28 15:38:55.970 INFO [stderr]   --> src/client.rs:32:5
Nov 28 15:38:55.970 INFO [stderr]    |
Nov 28 15:38:55.970 INFO [stderr] 32 |     stream: UnixStream,
Nov 28 15:38:55.970 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.971 INFO [stderr] 
Nov 28 15:38:55.971 INFO [stderr] warning: function is never used: `u32_to_bytes`
Nov 28 15:38:55.971 INFO [stderr]   --> src/client.rs:37:1
Nov 28 15:38:55.971 INFO [stderr]    |
Nov 28 15:38:55.971 INFO [stderr] 37 | fn u32_to_bytes(input: u32) -> [u8; 4] {
Nov 28 15:38:55.971 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.971 INFO [stderr] 
Nov 28 15:38:55.971 INFO [stderr] warning: function is never used: `u32_from_bytes`
Nov 28 15:38:55.971 INFO [stderr]   --> src/client.rs:43:1
Nov 28 15:38:55.971 INFO [stderr]    |
Nov 28 15:38:55.971 INFO [stderr] 43 | fn u32_from_bytes(bytes: [u8; 4]) -> u32 {
Nov 28 15:38:55.972 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.974 INFO [stderr] 
Nov 28 15:38:55.975 INFO [stderr] warning: method is never used: `stream`
Nov 28 15:38:55.975 INFO [stderr]   --> src/client.rs:54:5
Nov 28 15:38:55.975 INFO [stderr]    |
Nov 28 15:38:55.975 INFO [stderr] 54 |     pub fn stream(&self) -> &UnixStream {
Nov 28 15:38:55.975 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.975 INFO [stderr] 
Nov 28 15:38:55.975 INFO [stderr] warning: method is never used: `stream_mut`
Nov 28 15:38:55.975 INFO [stderr]   --> src/client.rs:59:5
Nov 28 15:38:55.975 INFO [stderr]    |
Nov 28 15:38:55.975 INFO [stderr] 59 |     pub fn stream_mut(&mut self) -> &mut UnixStream {
Nov 28 15:38:55.975 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.975 INFO [stderr] 
Nov 28 15:38:55.975 INFO [stderr] warning: method is never used: `into_stream`
Nov 28 15:38:55.975 INFO [stderr]   --> src/client.rs:64:5
Nov 28 15:38:55.975 INFO [stderr]    |
Nov 28 15:38:55.975 INFO [stderr] 64 |     pub fn into_stream(self) -> UnixStream {
Nov 28 15:38:55.975 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.975 INFO [stderr] 
Nov 28 15:38:55.975 INFO [stderr] warning: method is never used: `read_message`
Nov 28 15:38:55.975 INFO [stderr]   --> src/client.rs:69:5
Nov 28 15:38:55.975 INFO [stderr]    |
Nov 28 15:38:55.975 INFO [stderr] 69 |     pub fn read_message(&mut self) -> Result<Json, ReceiveError> {
Nov 28 15:38:55.975 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.975 INFO [stderr] 
Nov 28 15:38:55.975 INFO [stderr] warning: method is never used: `send_message`
Nov 28 15:38:55.975 INFO [stderr]   --> src/client.rs:78:5
Nov 28 15:38:55.975 INFO [stderr]    |
Nov 28 15:38:55.975 INFO [stderr] 78 |     pub fn send_message(&mut self, message: &Json) -> Result<(), SendError> {
Nov 28 15:38:55.975 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:55.975 INFO [stderr] 
Nov 28 15:38:56.048 INFO [stderr] warning: unused import: `ToJson`
Nov 28 15:38:56.048 INFO [stderr]  --> src/message.rs:5:35
Nov 28 15:38:56.048 INFO [stderr]   |
Nov 28 15:38:56.048 INFO [stderr] 5 | use rustc_serialize::json::{Json, ToJson};
Nov 28 15:38:56.048 INFO [stderr]   |                                   ^^^^^^
Nov 28 15:38:56.048 INFO [stderr]   |
Nov 28 15:38:56.048 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 15:38:56.048 INFO [stderr] 
Nov 28 15:38:56.048 INFO [stderr] warning: unused imports: `Read`, `Write`
Nov 28 15:38:56.048 INFO [stderr]  --> src/command.rs:5:15
Nov 28 15:38:56.048 INFO [stderr]   |
Nov 28 15:38:56.048 INFO [stderr] 5 | use std::io::{Read, Write};
Nov 28 15:38:56.048 INFO [stderr]   |               ^^^^  ^^^^^
Nov 28 15:38:56.048 INFO [stderr] 
Nov 28 15:38:56.048 INFO [stderr] warning: unused import: `std::io::Error as IOError`
Nov 28 15:38:56.048 INFO [stderr]  --> src/command.rs:7:5
Nov 28 15:38:56.048 INFO [stderr]   |
Nov 28 15:38:56.048 INFO [stderr] 7 | use std::io::Error as IOError;
Nov 28 15:38:56.048 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.048 INFO [stderr] 
Nov 28 15:38:56.128 INFO [stderr] warning: unused variable: `command`
Nov 28 15:38:56.128 INFO [stderr]   --> src/command.rs:22:17
Nov 28 15:38:56.128 INFO [stderr]    |
Nov 28 15:38:56.128 INFO [stderr] 22 |     pub fn send(command: Command) -> CommandResult {
Nov 28 15:38:56.128 INFO [stderr]    |                 ^^^^^^^ help: consider using `_command` instead
Nov 28 15:38:56.128 INFO [stderr]    |
Nov 28 15:38:56.128 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 15:38:56.128 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: enum is never used: `SendError`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:14:1
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr] 14 | pub enum SendError {
Nov 28 15:38:56.140 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 15:38:56.140 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: enum is never used: `ReceiveError`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:22:1
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr] 22 | pub enum ReceiveError {
Nov 28 15:38:56.140 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.140 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: field is never used: `stream`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:32:5
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr] 32 |     stream: UnixStream,
Nov 28 15:38:56.140 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.140 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: function is never used: `u32_to_bytes`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:37:1
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr] 37 | fn u32_to_bytes(input: u32) -> [u8; 4] {
Nov 28 15:38:56.140 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.140 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: function is never used: `u32_from_bytes`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:43:1
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr] 43 | fn u32_from_bytes(bytes: [u8; 4]) -> u32 {
Nov 28 15:38:56.140 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.140 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: method is never used: `stream`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:54:5
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr] 54 |     pub fn stream(&self) -> &UnixStream {
Nov 28 15:38:56.140 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.140 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: method is never used: `stream_mut`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:59:5
Nov 28 15:38:56.140 INFO [stderr]    |
Nov 28 15:38:56.140 INFO [stderr] 59 |     pub fn stream_mut(&mut self) -> &mut UnixStream {
Nov 28 15:38:56.140 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.140 INFO [stderr] 
Nov 28 15:38:56.140 INFO [stderr] warning: method is never used: `into_stream`
Nov 28 15:38:56.140 INFO [stderr]   --> src/client.rs:64:5
Nov 28 15:38:56.141 INFO [stderr]    |
Nov 28 15:38:56.141 INFO [stderr] 64 |     pub fn into_stream(self) -> UnixStream {
Nov 28 15:38:56.141 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.141 INFO [stderr] 
Nov 28 15:38:56.141 INFO [stderr] warning: method is never used: `read_message`
Nov 28 15:38:56.141 INFO [stderr]   --> src/client.rs:69:5
Nov 28 15:38:56.141 INFO [stderr]    |
Nov 28 15:38:56.141 INFO [stderr] 69 |     pub fn read_message(&mut self) -> Result<Json, ReceiveError> {
Nov 28 15:38:56.141 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.141 INFO [stderr] 
Nov 28 15:38:56.141 INFO [stderr] warning: method is never used: `send_message`
Nov 28 15:38:56.141 INFO [stderr]   --> src/client.rs:78:5
Nov 28 15:38:56.141 INFO [stderr]    |
Nov 28 15:38:56.141 INFO [stderr] 78 |     pub fn send_message(&mut self, message: &Json) -> Result<(), SendError> {
Nov 28 15:38:56.141 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 15:38:56.141 INFO [stderr] 
Nov 28 15:38:56.164 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
Nov 28 15:38:56.164 INFO [stderr] su: No module specific data is present
Nov 28 15:38:56.709 INFO running `"docker" "inspect" "77334c4ac493e33937f49a1b35ff05b900ef4317089a75d4a58de166aba6f6eb"`
Nov 28 15:38:56.934 INFO running `"docker" "rm" "-f" "77334c4ac493e33937f49a1b35ff05b900ef4317089a75d4a58de166aba6f6eb"`
Nov 28 15:38:57.128 INFO [stdout] 77334c4ac493e33937f49a1b35ff05b900ef4317089a75d4a58de166aba6f6eb