Sep 21 00:47:21.870 INFO checking way-cooler-ipc-0.0.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 00:47:21.870 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 00:47:21.870 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-7/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 00:47:22.070 INFO blam! 1deec7744b0275027c28b11fc7004031aa554816eca8fe5572b3847a877d3c20
Sep 21 00:47:22.076 INFO running `"docker" "start" "-a" "1deec7744b0275027c28b11fc7004031aa554816eca8fe5572b3847a877d3c20"`
Sep 21 00:47:22.995 INFO kablam! usermod: no changes
Sep 21 00:47:23.055 INFO kablam!     Checking unix_socket v0.5.0
Sep 21 00:47:23.493 INFO kablam!     Checking way-cooler-ipc v0.0.0 (/source)
Sep 21 00:47:23.654 INFO kablam! warning: unused import: `ToJson`
Sep 21 00:47:23.654 INFO kablam!  --> src/message.rs:5:35
Sep 21 00:47:23.655 INFO kablam!   |
Sep 21 00:47:23.655 INFO kablam! 5 | use rustc_serialize::json::{Json, ToJson};
Sep 21 00:47:23.655 INFO kablam!   |                                   ^^^^^^
Sep 21 00:47:23.655 INFO kablam!   |
Sep 21 00:47:23.656 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 00:47:23.656 INFO kablam! 
Sep 21 00:47:23.656 INFO kablam! warning: unused imports: `Read`, `Write`
Sep 21 00:47:23.656 INFO kablam!  --> src/command.rs:5:15
Sep 21 00:47:23.657 INFO kablam!   |
Sep 21 00:47:23.657 INFO kablam! 5 | use std::io::{Read, Write};
Sep 21 00:47:23.657 INFO kablam!   |               ^^^^  ^^^^^
Sep 21 00:47:23.657 INFO kablam! 
Sep 21 00:47:23.658 INFO kablam! warning: unused import: `std::io::Error as IOError`
Sep 21 00:47:23.658 INFO kablam!  --> src/command.rs:7:5
Sep 21 00:47:23.658 INFO kablam!   |
Sep 21 00:47:23.658 INFO kablam! 7 | use std::io::Error as IOError;
Sep 21 00:47:23.659 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.659 INFO kablam! 
Sep 21 00:47:23.758 INFO kablam! warning: unused variable: `command`
Sep 21 00:47:23.758 INFO kablam!   --> src/command.rs:22:17
Sep 21 00:47:23.758 INFO kablam!    |
Sep 21 00:47:23.758 INFO kablam! 22 |     pub fn send(command: Command) -> CommandResult {
Sep 21 00:47:23.758 INFO kablam!    |                 ^^^^^^^ help: consider using `_command` instead
Sep 21 00:47:23.758 INFO kablam!    |
Sep 21 00:47:23.758 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 21 00:47:23.758 INFO kablam! 
Sep 21 00:47:23.770 INFO kablam! warning: unused import: `ToJson`
Sep 21 00:47:23.770 INFO kablam!  --> src/message.rs:5:35
Sep 21 00:47:23.770 INFO kablam!   |
Sep 21 00:47:23.770 INFO kablam! 5 | use rustc_serialize::json::{Json, ToJson};
Sep 21 00:47:23.770 INFO kablam!   |                                   ^^^^^^
Sep 21 00:47:23.770 INFO kablam!   |
Sep 21 00:47:23.770 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 00:47:23.770 INFO kablam! 
Sep 21 00:47:23.770 INFO kablam! warning: unused imports: `Read`, `Write`
Sep 21 00:47:23.770 INFO kablam!  --> src/command.rs:5:15
Sep 21 00:47:23.770 INFO kablam!   |
Sep 21 00:47:23.770 INFO kablam! 5 | use std::io::{Read, Write};
Sep 21 00:47:23.770 INFO kablam!   |               ^^^^  ^^^^^
Sep 21 00:47:23.770 INFO kablam! 
Sep 21 00:47:23.770 INFO kablam! warning: unused import: `std::io::Error as IOError`
Sep 21 00:47:23.770 INFO kablam!  --> src/command.rs:7:5
Sep 21 00:47:23.770 INFO kablam!   |
Sep 21 00:47:23.770 INFO kablam! 7 | use std::io::Error as IOError;
Sep 21 00:47:23.770 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.770 INFO kablam! 
Sep 21 00:47:23.777 INFO kablam! warning: enum is never used: `SendError`
Sep 21 00:47:23.778 INFO kablam!   --> src/client.rs:14:1
Sep 21 00:47:23.778 INFO kablam!    |
Sep 21 00:47:23.778 INFO kablam! 14 | pub enum SendError {
Sep 21 00:47:23.779 INFO kablam!    | ^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.779 INFO kablam!    |
Sep 21 00:47:23.779 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 21 00:47:23.779 INFO kablam! 
Sep 21 00:47:23.780 INFO kablam! warning: enum is never used: `ReceiveError`
Sep 21 00:47:23.780 INFO kablam!   --> src/client.rs:22:1
Sep 21 00:47:23.780 INFO kablam!    |
Sep 21 00:47:23.781 INFO kablam! 22 | pub enum ReceiveError {
Sep 21 00:47:23.781 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.781 INFO kablam! 
Sep 21 00:47:23.782 INFO kablam! warning: field is never used: `stream`
Sep 21 00:47:23.782 INFO kablam!   --> src/client.rs:32:5
Sep 21 00:47:23.782 INFO kablam!    |
Sep 21 00:47:23.782 INFO kablam! 32 |     stream: UnixStream,
Sep 21 00:47:23.783 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.783 INFO kablam! 
Sep 21 00:47:23.783 INFO kablam! warning: function is never used: `u32_to_bytes`
Sep 21 00:47:23.784 INFO kablam!   --> src/client.rs:37:1
Sep 21 00:47:23.784 INFO kablam!    |
Sep 21 00:47:23.784 INFO kablam! 37 | fn u32_to_bytes(input: u32) -> [u8; 4] {
Sep 21 00:47:23.784 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.785 INFO kablam! 
Sep 21 00:47:23.785 INFO kablam! warning: function is never used: `u32_from_bytes`
Sep 21 00:47:23.785 INFO kablam!   --> src/client.rs:43:1
Sep 21 00:47:23.786 INFO kablam!    |
Sep 21 00:47:23.786 INFO kablam! 43 | fn u32_from_bytes(bytes: [u8; 4]) -> u32 {
Sep 21 00:47:23.786 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.786 INFO kablam! 
Sep 21 00:47:23.787 INFO kablam! warning: method is never used: `stream`
Sep 21 00:47:23.787 INFO kablam!   --> src/client.rs:54:5
Sep 21 00:47:23.788 INFO kablam!    |
Sep 21 00:47:23.788 INFO kablam! 54 |     pub fn stream(&self) -> &UnixStream {
Sep 21 00:47:23.788 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.788 INFO kablam! 
Sep 21 00:47:23.789 INFO kablam! warning: method is never used: `stream_mut`
Sep 21 00:47:23.789 INFO kablam!   --> src/client.rs:59:5
Sep 21 00:47:23.789 INFO kablam!    |
Sep 21 00:47:23.789 INFO kablam! 59 |     pub fn stream_mut(&mut self) -> &mut UnixStream {
Sep 21 00:47:23.790 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.794 INFO kablam! 
Sep 21 00:47:23.794 INFO kablam! warning: method is never used: `into_stream`
Sep 21 00:47:23.794 INFO kablam!   --> src/client.rs:64:5
Sep 21 00:47:23.795 INFO kablam!    |
Sep 21 00:47:23.795 INFO kablam! 64 |     pub fn into_stream(self) -> UnixStream {
Sep 21 00:47:23.795 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.796 INFO kablam! 
Sep 21 00:47:23.796 INFO kablam! warning: method is never used: `read_message`
Sep 21 00:47:23.796 INFO kablam!   --> src/client.rs:69:5
Sep 21 00:47:23.797 INFO kablam!    |
Sep 21 00:47:23.797 INFO kablam! 69 |     pub fn read_message(&mut self) -> Result<Json, ReceiveError> {
Sep 21 00:47:23.797 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.797 INFO kablam! 
Sep 21 00:47:23.798 INFO kablam! warning: method is never used: `send_message`
Sep 21 00:47:23.798 INFO kablam!   --> src/client.rs:78:5
Sep 21 00:47:23.798 INFO kablam!    |
Sep 21 00:47:23.799 INFO kablam! 78 |     pub fn send_message(&mut self, message: &Json) -> Result<(), SendError> {
Sep 21 00:47:23.799 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.799 INFO kablam! 
Sep 21 00:47:23.898 INFO kablam! warning: unused variable: `command`
Sep 21 00:47:23.899 INFO kablam!   --> src/command.rs:22:17
Sep 21 00:47:23.899 INFO kablam!    |
Sep 21 00:47:23.899 INFO kablam! 22 |     pub fn send(command: Command) -> CommandResult {
Sep 21 00:47:23.900 INFO kablam!    |                 ^^^^^^^ help: consider using `_command` instead
Sep 21 00:47:23.900 INFO kablam!    |
Sep 21 00:47:23.900 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 21 00:47:23.901 INFO kablam! 
Sep 21 00:47:23.912 INFO kablam! warning: enum is never used: `SendError`
Sep 21 00:47:23.912 INFO kablam!   --> src/client.rs:14:1
Sep 21 00:47:23.913 INFO kablam!    |
Sep 21 00:47:23.913 INFO kablam! 14 | pub enum SendError {
Sep 21 00:47:23.913 INFO kablam!    | ^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.913 INFO kablam!    |
Sep 21 00:47:23.914 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 21 00:47:23.914 INFO kablam! 
Sep 21 00:47:23.914 INFO kablam! warning: enum is never used: `ReceiveError`
Sep 21 00:47:23.915 INFO kablam!   --> src/client.rs:22:1
Sep 21 00:47:23.915 INFO kablam!    |
Sep 21 00:47:23.915 INFO kablam! 22 | pub enum ReceiveError {
Sep 21 00:47:23.915 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.916 INFO kablam! 
Sep 21 00:47:23.916 INFO kablam! warning: field is never used: `stream`
Sep 21 00:47:23.916 INFO kablam!   --> src/client.rs:32:5
Sep 21 00:47:23.916 INFO kablam!    |
Sep 21 00:47:23.916 INFO kablam! 32 |     stream: UnixStream,
Sep 21 00:47:23.917 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.917 INFO kablam! 
Sep 21 00:47:23.917 INFO kablam! warning: function is never used: `u32_to_bytes`
Sep 21 00:47:23.917 INFO kablam!   --> src/client.rs:37:1
Sep 21 00:47:23.918 INFO kablam!    |
Sep 21 00:47:23.918 INFO kablam! 37 | fn u32_to_bytes(input: u32) -> [u8; 4] {
Sep 21 00:47:23.918 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.918 INFO kablam! 
Sep 21 00:47:23.919 INFO kablam! warning: function is never used: `u32_from_bytes`
Sep 21 00:47:23.919 INFO kablam!   --> src/client.rs:43:1
Sep 21 00:47:23.919 INFO kablam!    |
Sep 21 00:47:23.919 INFO kablam! 43 | fn u32_from_bytes(bytes: [u8; 4]) -> u32 {
Sep 21 00:47:23.919 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.920 INFO kablam! 
Sep 21 00:47:23.920 INFO kablam! warning: method is never used: `stream`
Sep 21 00:47:23.920 INFO kablam!   --> src/client.rs:54:5
Sep 21 00:47:23.920 INFO kablam!    |
Sep 21 00:47:23.920 INFO kablam! 54 |     pub fn stream(&self) -> &UnixStream {
Sep 21 00:47:23.921 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.921 INFO kablam! 
Sep 21 00:47:23.921 INFO kablam! warning: method is never used: `stream_mut`
Sep 21 00:47:23.921 INFO kablam!   --> src/client.rs:59:5
Sep 21 00:47:23.921 INFO kablam!    |
Sep 21 00:47:23.922 INFO kablam! 59 |     pub fn stream_mut(&mut self) -> &mut UnixStream {
Sep 21 00:47:23.922 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.922 INFO kablam! 
Sep 21 00:47:23.922 INFO kablam! warning: method is never used: `into_stream`
Sep 21 00:47:23.922 INFO kablam!   --> src/client.rs:64:5
Sep 21 00:47:23.923 INFO kablam!    |
Sep 21 00:47:23.923 INFO kablam! 64 |     pub fn into_stream(self) -> UnixStream {
Sep 21 00:47:23.923 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.923 INFO kablam! 
Sep 21 00:47:23.923 INFO kablam! warning: method is never used: `read_message`
Sep 21 00:47:23.924 INFO kablam!   --> src/client.rs:69:5
Sep 21 00:47:23.924 INFO kablam!    |
Sep 21 00:47:23.924 INFO kablam! 69 |     pub fn read_message(&mut self) -> Result<Json, ReceiveError> {
Sep 21 00:47:23.924 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.924 INFO kablam! 
Sep 21 00:47:23.925 INFO kablam! warning: method is never used: `send_message`
Sep 21 00:47:23.925 INFO kablam!   --> src/client.rs:78:5
Sep 21 00:47:23.925 INFO kablam!    |
Sep 21 00:47:23.925 INFO kablam! 78 |     pub fn send_message(&mut self, message: &Json) -> Result<(), SendError> {
Sep 21 00:47:23.925 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 00:47:23.926 INFO kablam! 
Sep 21 00:47:23.953 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
Sep 21 00:47:23.956 INFO kablam! su: No module specific data is present
Sep 21 00:47:24.793 INFO running `"docker" "rm" "-f" "1deec7744b0275027c28b11fc7004031aa554816eca8fe5572b3847a877d3c20"`
Sep 21 00:47:24.911 INFO blam! 1deec7744b0275027c28b11fc7004031aa554816eca8fe5572b3847a877d3c20