Dec 13 10:21:27.597 INFO testing mmiecz/chip8-rust against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 13 10:21:27.597 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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"`
Dec 13 10:21:27.897 INFO [stdout] f8bf13eda98059054e63f29292a0b12c0a45c02218f26a425eb69c6422fd7ae4
Dec 13 10:21:27.899 INFO running `"docker" "start" "-a" "f8bf13eda98059054e63f29292a0b12c0a45c02218f26a425eb69c6422fd7ae4"`
Dec 13 10:21:28.658 INFO [stderr] usermod: no changes
Dec 13 10:21:28.942 INFO [stderr]    Compiling phf_shared v0.7.20
Dec 13 10:21:28.943 INFO [stderr]    Compiling serde v0.8.22
Dec 13 10:21:28.959 INFO [stderr]    Compiling gcc v0.3.41
Dec 13 10:21:28.974 INFO [stderr]    Compiling rand v0.3.15
Dec 13 10:21:28.975 INFO [stderr]    Compiling shared_library v0.1.5
Dec 13 10:21:28.982 INFO [stderr]    Compiling x11-dl v2.12.0
Dec 13 10:21:28.983 INFO [stderr]    Compiling glutin v0.7.2
Dec 13 10:21:28.983 INFO [stderr]    Compiling glium v0.16.0
Dec 13 10:21:30.033 INFO [stderr]    Compiling phf v0.7.20
Dec 13 10:21:33.450 INFO [stderr]    Compiling fs2 v0.2.5
Dec 13 10:21:35.855 INFO [stderr]    Compiling osmesa-sys v0.1.2
Dec 13 10:21:36.247 INFO [stderr]    Compiling memmap v0.4.0
Dec 13 10:21:36.279 INFO [stderr]    Compiling backtrace-sys v0.1.5
Dec 13 10:21:36.383 INFO [stderr]    Compiling phf_generator v0.7.20
Dec 13 10:21:36.443 INFO [stderr]    Compiling tempfile v2.1.4
Dec 13 10:21:38.894 INFO [stderr]    Compiling phf_codegen v0.7.20
Dec 13 10:21:39.775 INFO [stderr]    Compiling backtrace v0.2.3
Dec 13 10:21:40.278 INFO [stderr]    Compiling target_build_utils v0.1.2
Dec 13 10:21:43.187 INFO [stderr]    Compiling serde_json v0.8.4
Dec 13 10:21:52.197 INFO [stderr]    Compiling libloading v0.3.1
Dec 13 10:21:54.403 INFO [stderr]    Compiling dlib v0.3.1
Dec 13 10:21:54.703 INFO [stderr]    Compiling wayland-sys v0.7.6
Dec 13 10:21:55.627 INFO [stderr]    Compiling wayland-client v0.7.6
Dec 13 10:21:57.111 INFO [stderr]    Compiling wayland-window v0.4.3
Dec 13 10:21:57.111 INFO [stderr]    Compiling wayland-kbd v0.6.2
Dec 13 10:21:58.533 INFO [stderr]    Compiling winit v0.5.7
Dec 13 10:22:36.471 INFO [stderr]    Compiling chip8-rust v0.1.0 (/source)
Dec 13 10:22:37.355 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 13 10:22:37.355 INFO [stderr]    --> src/cpu.rs:446:13
Dec 13 10:22:37.355 INFO [stderr]     |
Dec 13 10:22:37.355 INFO [stderr] 446 |         use glium::glutin::VirtualKeyCode;
Dec 13 10:22:37.355 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:37.355 INFO [stderr]     |
Dec 13 10:22:37.355 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 13 10:22:37.355 INFO [stderr] 
Dec 13 10:22:37.355 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 13 10:22:37.355 INFO [stderr]    --> src/cpu.rs:455:13
Dec 13 10:22:37.355 INFO [stderr]     |
Dec 13 10:22:37.355 INFO [stderr] 455 |         use glium::glutin::VirtualKeyCode;
Dec 13 10:22:37.355 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:37.355 INFO [stderr] 
Dec 13 10:22:37.355 INFO [stderr] warning: unused import: `glium::DisplayBuild`
Dec 13 10:22:37.355 INFO [stderr]  --> src/input.rs:3:5
Dec 13 10:22:37.356 INFO [stderr]   |
Dec 13 10:22:37.356 INFO [stderr] 3 | use glium::DisplayBuild;
Dec 13 10:22:37.356 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.356 INFO [stderr] warning: unused import: `std::thread`
Dec 13 10:22:37.356 INFO [stderr]  --> src/input.rs:4:5
Dec 13 10:22:37.356 INFO [stderr]   |
Dec 13 10:22:37.356 INFO [stderr] 4 | use std::thread;
Dec 13 10:22:37.356 INFO [stderr]   |     ^^^^^^^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.356 INFO [stderr] warning: unused import: `std::time`
Dec 13 10:22:37.356 INFO [stderr]  --> src/input.rs:5:5
Dec 13 10:22:37.356 INFO [stderr]   |
Dec 13 10:22:37.356 INFO [stderr] 5 | use std::time;
Dec 13 10:22:37.356 INFO [stderr]   |     ^^^^^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.356 INFO [stderr] warning: unused import: `glium::glutin`
Dec 13 10:22:37.356 INFO [stderr]  --> src/display.rs:4:5
Dec 13 10:22:37.356 INFO [stderr]   |
Dec 13 10:22:37.356 INFO [stderr] 4 | use glium::glutin;
Dec 13 10:22:37.356 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.356 INFO [stderr] warning: unused import: `std::path::Path`
Dec 13 10:22:37.356 INFO [stderr]  --> src/display.rs:6:5
Dec 13 10:22:37.356 INFO [stderr]   |
Dec 13 10:22:37.356 INFO [stderr] 6 | use std::path::Path;
Dec 13 10:22:37.356 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.356 INFO [stderr] warning: unused import: `std::fs::File`
Dec 13 10:22:37.356 INFO [stderr]  --> src/display.rs:7:5
Dec 13 10:22:37.356 INFO [stderr]   |
Dec 13 10:22:37.356 INFO [stderr] 7 | use std::fs::File;
Dec 13 10:22:37.356 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.356 INFO [stderr] warning: unused imports: `CpuError`, `Cpu`, `DecoderError`
Dec 13 10:22:37.356 INFO [stderr]  --> src/main.rs:9:11
Dec 13 10:22:37.356 INFO [stderr]   |
Dec 13 10:22:37.356 INFO [stderr] 9 | use cpu::{Cpu, DecoderError, CpuError};
Dec 13 10:22:37.356 INFO [stderr]   |           ^^^  ^^^^^^^^^^^^  ^^^^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.356 INFO [stderr] warning: unused imports: `Event`, `VirtualKeyCode`
Dec 13 10:22:37.356 INFO [stderr]   --> src/main.rs:10:21
Dec 13 10:22:37.356 INFO [stderr]    |
Dec 13 10:22:37.356 INFO [stderr] 10 | use glium::glutin::{VirtualKeyCode, Event};
Dec 13 10:22:37.356 INFO [stderr]    |                     ^^^^^^^^^^^^^^  ^^^^^
Dec 13 10:22:37.356 INFO [stderr] 
Dec 13 10:22:37.473 INFO [stderr] warning: unreachable expression
Dec 13 10:22:37.474 INFO [stderr]    --> src/cpu.rs:264:9
Dec 13 10:22:37.474 INFO [stderr]     |
Dec 13 10:22:37.474 INFO [stderr] 264 |         "cls".to_string()
Dec 13 10:22:37.474 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Dec 13 10:22:37.474 INFO [stderr]     |
Dec 13 10:22:37.474 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 13 10:22:37.474 INFO [stderr] 
Dec 13 10:22:37.519 INFO [stderr] warning: unreachable expression
Dec 13 10:22:37.519 INFO [stderr]    --> src/cpu.rs:480:9
Dec 13 10:22:37.519 INFO [stderr]     |
Dec 13 10:22:37.519 INFO [stderr] 480 |         format!("wkp {:#x}", self.regs.v[reg])
Dec 13 10:22:37.519 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:37.519 INFO [stderr]     |
Dec 13 10:22:37.519 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 13 10:22:37.519 INFO [stderr] 
Dec 13 10:22:37.594 INFO [stderr] warning: unused variable: `what`
Dec 13 10:22:37.594 INFO [stderr]   --> src/cpu.rs:75:17
Dec 13 10:22:37.594 INFO [stderr]    |
Dec 13 10:22:37.594 INFO [stderr] 75 |             Err(what) => Err(CpuError::DecoderError)
Dec 13 10:22:37.594 INFO [stderr]    |                 ^^^^ help: consider using `_what` instead
Dec 13 10:22:37.594 INFO [stderr]    |
Dec 13 10:22:37.594 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 10:22:37.594 INFO [stderr] 
Dec 13 10:22:37.594 INFO [stderr] warning: unused variable: `placeholder_display`
Dec 13 10:22:37.594 INFO [stderr]    --> src/cpu.rs:262:23
Dec 13 10:22:37.594 INFO [stderr]     |
Dec 13 10:22:37.594 INFO [stderr] 262 |     fn cls(&mut self, placeholder_display : u8 ) -> String  {
Dec 13 10:22:37.594 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^^^ help: consider using `_placeholder_display` instead
Dec 13 10:22:37.594 INFO [stderr] 
Dec 13 10:22:37.594 INFO [stderr] warning: unused variable: `reg`
Dec 13 10:22:37.594 INFO [stderr]    --> src/cpu.rs:478:37
Dec 13 10:22:37.594 INFO [stderr]     |
Dec 13 10:22:37.594 INFO [stderr] 478 |     fn wait_for_keypress(&mut self, reg: usize) -> String  {
Dec 13 10:22:37.594 INFO [stderr]     |                                     ^^^ help: consider using `_reg` instead
Dec 13 10:22:37.594 INFO [stderr] 
Dec 13 10:22:37.595 INFO [stderr] warning: unused variable: `title`
Dec 13 10:22:37.595 INFO [stderr]   --> src/display.rs:30:39
Dec 13 10:22:37.595 INFO [stderr]    |
Dec 13 10:22:37.595 INFO [stderr] 30 |     pub fn new(dimension: (u32, u32), title: &str) -> Result<Self, DisplayBuildError> {
Dec 13 10:22:37.595 INFO [stderr]    |                                       ^^^^^ help: consider using `_title` instead
Dec 13 10:22:37.595 INFO [stderr] 
Dec 13 10:22:37.667 INFO [stderr] warning: variable does not need to be mutable
Dec 13 10:22:37.667 INFO [stderr]   --> src/display.rs:99:13
Dec 13 10:22:37.667 INFO [stderr]    |
Dec 13 10:22:37.667 INFO [stderr] 99 |         let mut collision = false;
Dec 13 10:22:37.667 INFO [stderr]    |             ----^^^^^^^^^
Dec 13 10:22:37.667 INFO [stderr]    |             |
Dec 13 10:22:37.667 INFO [stderr]    |             help: remove this `mut`
Dec 13 10:22:37.668 INFO [stderr]    |
Dec 13 10:22:37.668 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 10:22:37.668 INFO [stderr] 
Dec 13 10:22:37.673 INFO [stderr] warning: field is never used: `is_closing`
Dec 13 10:22:37.673 INFO [stderr]  --> src/input.rs:8:5
Dec 13 10:22:37.673 INFO [stderr]   |
Dec 13 10:22:37.673 INFO [stderr] 8 |     is_closing : bool,
Dec 13 10:22:37.673 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 13 10:22:37.673 INFO [stderr]   |
Dec 13 10:22:37.673 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 10:22:37.674 INFO [stderr] 
Dec 13 10:22:37.674 INFO [stderr] warning: variant is never constructed: `InvalidDimensionError`
Dec 13 10:22:37.674 INFO [stderr]   --> src/display.rs:17:5
Dec 13 10:22:37.674 INFO [stderr]    |
Dec 13 10:22:37.674 INFO [stderr] 17 |     InvalidDimensionError,
Dec 13 10:22:37.674 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:37.674 INFO [stderr] 
Dec 13 10:22:42.591 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
Dec 13 10:22:42.603 INFO [stderr] su: No module specific data is present
Dec 13 10:22:44.404 INFO running `"docker" "inspect" "f8bf13eda98059054e63f29292a0b12c0a45c02218f26a425eb69c6422fd7ae4"`
Dec 13 10:22:44.767 INFO running `"docker" "rm" "-f" "f8bf13eda98059054e63f29292a0b12c0a45c02218f26a425eb69c6422fd7ae4"`
Dec 13 10:22:45.047 INFO [stdout] f8bf13eda98059054e63f29292a0b12c0a45c02218f26a425eb69c6422fd7ae4
Dec 13 10:22:45.055 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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"`
Dec 13 10:22:45.503 INFO [stdout] 02d634cb68ba46d065d1be723f98557b35a36b7c14c63b352685eb355d2217a8
Dec 13 10:22:45.505 INFO running `"docker" "start" "-a" "02d634cb68ba46d065d1be723f98557b35a36b7c14c63b352685eb355d2217a8"`
Dec 13 10:22:47.358 INFO [stderr] usermod: no changes
Dec 13 10:22:47.561 INFO [stderr]    Compiling chip8-rust v0.1.0 (/source)
Dec 13 10:22:48.586 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 13 10:22:48.587 INFO [stderr]    --> src/cpu.rs:446:13
Dec 13 10:22:48.587 INFO [stderr]     |
Dec 13 10:22:48.587 INFO [stderr] 446 |         use glium::glutin::VirtualKeyCode;
Dec 13 10:22:48.587 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr]     |
Dec 13 10:22:48.587 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.587 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 13 10:22:48.587 INFO [stderr]    --> src/cpu.rs:455:13
Dec 13 10:22:48.587 INFO [stderr]     |
Dec 13 10:22:48.587 INFO [stderr] 455 |         use glium::glutin::VirtualKeyCode;
Dec 13 10:22:48.587 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.587 INFO [stderr] warning: unused import: `glium::DisplayBuild`
Dec 13 10:22:48.587 INFO [stderr]  --> src/input.rs:3:5
Dec 13 10:22:48.587 INFO [stderr]   |
Dec 13 10:22:48.587 INFO [stderr] 3 | use glium::DisplayBuild;
Dec 13 10:22:48.587 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.587 INFO [stderr] warning: unused import: `std::thread`
Dec 13 10:22:48.587 INFO [stderr]  --> src/input.rs:4:5
Dec 13 10:22:48.587 INFO [stderr]   |
Dec 13 10:22:48.587 INFO [stderr] 4 | use std::thread;
Dec 13 10:22:48.587 INFO [stderr]   |     ^^^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.587 INFO [stderr] warning: unused import: `std::time`
Dec 13 10:22:48.587 INFO [stderr]  --> src/input.rs:5:5
Dec 13 10:22:48.587 INFO [stderr]   |
Dec 13 10:22:48.587 INFO [stderr] 5 | use std::time;
Dec 13 10:22:48.587 INFO [stderr]   |     ^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.587 INFO [stderr] warning: unused import: `glium::glutin`
Dec 13 10:22:48.587 INFO [stderr]  --> src/display.rs:4:5
Dec 13 10:22:48.587 INFO [stderr]   |
Dec 13 10:22:48.587 INFO [stderr] 4 | use glium::glutin;
Dec 13 10:22:48.587 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.587 INFO [stderr] warning: unused import: `std::path::Path`
Dec 13 10:22:48.587 INFO [stderr]  --> src/display.rs:6:5
Dec 13 10:22:48.587 INFO [stderr]   |
Dec 13 10:22:48.587 INFO [stderr] 6 | use std::path::Path;
Dec 13 10:22:48.587 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.587 INFO [stderr] warning: unused import: `std::fs::File`
Dec 13 10:22:48.587 INFO [stderr]  --> src/display.rs:7:5
Dec 13 10:22:48.587 INFO [stderr]   |
Dec 13 10:22:48.587 INFO [stderr] 7 | use std::fs::File;
Dec 13 10:22:48.587 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 13 10:22:48.587 INFO [stderr] 
Dec 13 10:22:48.588 INFO [stderr] warning: unused imports: `CpuError`, `Cpu`, `DecoderError`
Dec 13 10:22:48.588 INFO [stderr]  --> src/main.rs:9:11
Dec 13 10:22:48.588 INFO [stderr]   |
Dec 13 10:22:48.588 INFO [stderr] 9 | use cpu::{Cpu, DecoderError, CpuError};
Dec 13 10:22:48.588 INFO [stderr]   |           ^^^  ^^^^^^^^^^^^  ^^^^^^^^
Dec 13 10:22:48.588 INFO [stderr] 
Dec 13 10:22:48.588 INFO [stderr] warning: unused imports: `Event`, `VirtualKeyCode`
Dec 13 10:22:48.588 INFO [stderr]   --> src/main.rs:10:21
Dec 13 10:22:48.588 INFO [stderr]    |
Dec 13 10:22:48.588 INFO [stderr] 10 | use glium::glutin::{VirtualKeyCode, Event};
Dec 13 10:22:48.588 INFO [stderr]    |                     ^^^^^^^^^^^^^^  ^^^^^
Dec 13 10:22:48.588 INFO [stderr] 
Dec 13 10:22:48.737 INFO [stderr] warning: unreachable expression
Dec 13 10:22:48.737 INFO [stderr]    --> src/cpu.rs:264:9
Dec 13 10:22:48.737 INFO [stderr]     |
Dec 13 10:22:48.737 INFO [stderr] 264 |         "cls".to_string()
Dec 13 10:22:48.737 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Dec 13 10:22:48.737 INFO [stderr]     |
Dec 13 10:22:48.737 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 13 10:22:48.737 INFO [stderr] 
Dec 13 10:22:48.783 INFO [stderr] warning: unreachable expression
Dec 13 10:22:48.783 INFO [stderr]    --> src/cpu.rs:480:9
Dec 13 10:22:48.783 INFO [stderr]     |
Dec 13 10:22:48.783 INFO [stderr] 480 |         format!("wkp {:#x}", self.regs.v[reg])
Dec 13 10:22:48.783 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:48.783 INFO [stderr]     |
Dec 13 10:22:48.783 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 13 10:22:48.783 INFO [stderr] 
Dec 13 10:22:48.862 INFO [stderr] warning: unused variable: `what`
Dec 13 10:22:48.862 INFO [stderr]   --> src/cpu.rs:75:17
Dec 13 10:22:48.862 INFO [stderr]    |
Dec 13 10:22:48.862 INFO [stderr] 75 |             Err(what) => Err(CpuError::DecoderError)
Dec 13 10:22:48.862 INFO [stderr]    |                 ^^^^ help: consider using `_what` instead
Dec 13 10:22:48.862 INFO [stderr]    |
Dec 13 10:22:48.862 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 10:22:48.862 INFO [stderr] 
Dec 13 10:22:48.862 INFO [stderr] warning: unused variable: `placeholder_display`
Dec 13 10:22:48.862 INFO [stderr]    --> src/cpu.rs:262:23
Dec 13 10:22:48.863 INFO [stderr]     |
Dec 13 10:22:48.863 INFO [stderr] 262 |     fn cls(&mut self, placeholder_display : u8 ) -> String  {
Dec 13 10:22:48.863 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^^^ help: consider using `_placeholder_display` instead
Dec 13 10:22:48.863 INFO [stderr] 
Dec 13 10:22:48.863 INFO [stderr] warning: unused variable: `reg`
Dec 13 10:22:48.863 INFO [stderr]    --> src/cpu.rs:478:37
Dec 13 10:22:48.863 INFO [stderr]     |
Dec 13 10:22:48.863 INFO [stderr] 478 |     fn wait_for_keypress(&mut self, reg: usize) -> String  {
Dec 13 10:22:48.863 INFO [stderr]     |                                     ^^^ help: consider using `_reg` instead
Dec 13 10:22:48.863 INFO [stderr] 
Dec 13 10:22:48.863 INFO [stderr] warning: unused variable: `title`
Dec 13 10:22:48.863 INFO [stderr]   --> src/display.rs:30:39
Dec 13 10:22:48.863 INFO [stderr]    |
Dec 13 10:22:48.863 INFO [stderr] 30 |     pub fn new(dimension: (u32, u32), title: &str) -> Result<Self, DisplayBuildError> {
Dec 13 10:22:48.863 INFO [stderr]    |                                       ^^^^^ help: consider using `_title` instead
Dec 13 10:22:48.863 INFO [stderr] 
Dec 13 10:22:48.931 INFO [stderr] warning: variable does not need to be mutable
Dec 13 10:22:48.931 INFO [stderr]   --> src/display.rs:99:13
Dec 13 10:22:48.931 INFO [stderr]    |
Dec 13 10:22:48.931 INFO [stderr] 99 |         let mut collision = false;
Dec 13 10:22:48.931 INFO [stderr]    |             ----^^^^^^^^^
Dec 13 10:22:48.931 INFO [stderr]    |             |
Dec 13 10:22:48.931 INFO [stderr]    |             help: remove this `mut`
Dec 13 10:22:48.931 INFO [stderr]    |
Dec 13 10:22:48.931 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 10:22:48.931 INFO [stderr] 
Dec 13 10:22:48.937 INFO [stderr] warning: field is never used: `is_closing`
Dec 13 10:22:48.937 INFO [stderr]  --> src/input.rs:8:5
Dec 13 10:22:48.937 INFO [stderr]   |
Dec 13 10:22:48.937 INFO [stderr] 8 |     is_closing : bool,
Dec 13 10:22:48.937 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 13 10:22:48.937 INFO [stderr]   |
Dec 13 10:22:48.937 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 10:22:48.937 INFO [stderr] 
Dec 13 10:22:48.938 INFO [stderr] warning: variant is never constructed: `InvalidDimensionError`
Dec 13 10:22:48.938 INFO [stderr]   --> src/display.rs:17:5
Dec 13 10:22:48.938 INFO [stderr]    |
Dec 13 10:22:48.938 INFO [stderr] 17 |     InvalidDimensionError,
Dec 13 10:22:48.938 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 13 10:22:48.938 INFO [stderr] 
Dec 13 10:22:49.428 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
Dec 13 10:22:49.443 INFO [stderr] su: No module specific data is present
Dec 13 10:22:50.841 INFO running `"docker" "inspect" "02d634cb68ba46d065d1be723f98557b35a36b7c14c63b352685eb355d2217a8"`
Dec 13 10:22:51.165 INFO running `"docker" "rm" "-f" "02d634cb68ba46d065d1be723f98557b35a36b7c14c63b352685eb355d2217a8"`
Dec 13 10:22:51.496 INFO [stdout] 02d634cb68ba46d065d1be723f98557b35a36b7c14c63b352685eb355d2217a8
Dec 13 10:22:51.503 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-5/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-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"`
Dec 13 10:22:52.024 INFO [stdout] f55c845349a9a2f46b6f43bf5ca91e14977326181e71d6a9a07a997ee492ce90
Dec 13 10:22:52.026 INFO running `"docker" "start" "-a" "f55c845349a9a2f46b6f43bf5ca91e14977326181e71d6a9a07a997ee492ce90"`
Dec 13 10:22:54.585 INFO [stderr] usermod: no changes
Dec 13 10:22:54.823 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
Dec 13 10:22:54.847 INFO [stderr]      Running /target/debug/deps/chip8_rust-9a94b9d781b14ae8
Dec 13 10:22:54.867 INFO [stderr] su: No module specific data is present
Dec 13 10:22:54.867 INFO [stdout] 
Dec 13 10:22:54.867 INFO [stdout] running 0 tests
Dec 13 10:22:54.867 INFO [stdout] 
Dec 13 10:22:54.867 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 10:22:54.867 INFO [stdout] 
Dec 13 10:22:56.164 INFO running `"docker" "inspect" "f55c845349a9a2f46b6f43bf5ca91e14977326181e71d6a9a07a997ee492ce90"`
Dec 13 10:22:56.473 INFO running `"docker" "rm" "-f" "f55c845349a9a2f46b6f43bf5ca91e14977326181e71d6a9a07a997ee492ce90"`
Dec 13 10:22:56.879 INFO [stdout] f55c845349a9a2f46b6f43bf5ca91e14977326181e71d6a9a07a997ee492ce90