Nov 16 19:24:44.369 INFO testing mmiecz/chip8-rust against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 16 19:24:44.371 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 19:24:44.874 INFO [stdout] f9077d758b6c9260a89747aaf1d7e8e27c2d9403b8e199d51086acc5c12070fb
Nov 16 19:24:44.876 INFO running `"docker" "start" "-a" "f9077d758b6c9260a89747aaf1d7e8e27c2d9403b8e199d51086acc5c12070fb"`
Nov 16 19:24:47.287 INFO [stderr] usermod: no changes
Nov 16 19:24:47.618 INFO [stderr]    Compiling phf_shared v0.7.20
Nov 16 19:24:47.622 INFO [stderr]    Compiling rustc-demangle v0.1.3
Nov 16 19:24:47.655 INFO [stderr]    Compiling rand v0.3.15
Nov 16 19:24:47.656 INFO [stderr]    Compiling serde_json v0.8.4
Nov 16 19:24:47.668 INFO [stderr]    Compiling shared_library v0.1.5
Nov 16 19:24:47.669 INFO [stderr]    Compiling backtrace-sys v0.1.5
Nov 16 19:24:47.670 INFO [stderr]    Compiling glium v0.16.0
Nov 16 19:24:47.684 INFO [stderr]    Compiling x11-dl v2.12.0
Nov 16 19:24:50.341 INFO [stderr]    Compiling fs2 v0.2.5
Nov 16 19:24:52.140 INFO [stderr]    Compiling phf v0.7.20
Nov 16 19:24:52.186 INFO [stderr]    Compiling osmesa-sys v0.1.2
Nov 16 19:24:53.231 INFO [stderr]    Compiling memmap v0.4.0
Nov 16 19:24:55.555 INFO [stderr]    Compiling backtrace v0.2.3
Nov 16 19:25:00.845 INFO [stderr]    Compiling phf_generator v0.7.20
Nov 16 19:25:00.852 INFO [stderr]    Compiling tempfile v2.1.4
Nov 16 19:25:02.083 INFO [stderr]    Compiling phf_codegen v0.7.20
Nov 16 19:25:03.247 INFO [stderr]    Compiling target_build_utils v0.1.2
Nov 16 19:25:18.159 INFO [stderr]    Compiling libloading v0.3.1
Nov 16 19:25:20.983 INFO [stderr]    Compiling dlib v0.3.1
Nov 16 19:25:21.323 INFO [stderr]    Compiling wayland-sys v0.7.6
Nov 16 19:25:23.211 INFO [stderr]    Compiling wayland-client v0.7.6
Nov 16 19:25:25.083 INFO [stderr]    Compiling wayland-kbd v0.6.2
Nov 16 19:25:25.084 INFO [stderr]    Compiling wayland-window v0.4.3
Nov 16 19:25:27.123 INFO [stderr]    Compiling winit v0.5.7
Nov 16 19:25:30.202 INFO [stderr]    Compiling glutin v0.7.2
Nov 16 19:26:00.271 INFO [stderr]    Compiling chip8-rust v0.1.0 (/source)
Nov 16 19:26:01.151 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Nov 16 19:26:01.151 INFO [stderr]    --> src/cpu.rs:446:13
Nov 16 19:26:01.151 INFO [stderr]     |
Nov 16 19:26:01.151 INFO [stderr] 446 |         use glium::glutin::VirtualKeyCode;
Nov 16 19:26:01.151 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:01.151 INFO [stderr]     |
Nov 16 19:26:01.151 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 16 19:26:01.151 INFO [stderr] 
Nov 16 19:26:01.151 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Nov 16 19:26:01.151 INFO [stderr]    --> src/cpu.rs:455:13
Nov 16 19:26:01.151 INFO [stderr]     |
Nov 16 19:26:01.151 INFO [stderr] 455 |         use glium::glutin::VirtualKeyCode;
Nov 16 19:26:01.151 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:01.151 INFO [stderr] 
Nov 16 19:26:01.151 INFO [stderr] warning: unused import: `glium::DisplayBuild`
Nov 16 19:26:01.151 INFO [stderr]  --> src/input.rs:3:5
Nov 16 19:26:01.151 INFO [stderr]   |
Nov 16 19:26:01.151 INFO [stderr] 3 | use glium::DisplayBuild;
Nov 16 19:26:01.151 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:01.151 INFO [stderr] 
Nov 16 19:26:01.151 INFO [stderr] warning: unused import: `std::thread`
Nov 16 19:26:01.151 INFO [stderr]  --> src/input.rs:4:5
Nov 16 19:26:01.151 INFO [stderr]   |
Nov 16 19:26:01.151 INFO [stderr] 4 | use std::thread;
Nov 16 19:26:01.151 INFO [stderr]   |     ^^^^^^^^^^^
Nov 16 19:26:01.151 INFO [stderr] 
Nov 16 19:26:01.151 INFO [stderr] warning: unused import: `std::time`
Nov 16 19:26:01.151 INFO [stderr]  --> src/input.rs:5:5
Nov 16 19:26:01.151 INFO [stderr]   |
Nov 16 19:26:01.151 INFO [stderr] 5 | use std::time;
Nov 16 19:26:01.151 INFO [stderr]   |     ^^^^^^^^^
Nov 16 19:26:01.151 INFO [stderr] 
Nov 16 19:26:01.151 INFO [stderr] warning: unused import: `glium::glutin`
Nov 16 19:26:01.151 INFO [stderr]  --> src/display.rs:4:5
Nov 16 19:26:01.151 INFO [stderr]   |
Nov 16 19:26:01.151 INFO [stderr] 4 | use glium::glutin;
Nov 16 19:26:01.151 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 16 19:26:01.151 INFO [stderr] 
Nov 16 19:26:01.151 INFO [stderr] warning: unused import: `std::path::Path`
Nov 16 19:26:01.151 INFO [stderr]  --> src/display.rs:6:5
Nov 16 19:26:01.151 INFO [stderr]   |
Nov 16 19:26:01.152 INFO [stderr] 6 | use std::path::Path;
Nov 16 19:26:01.152 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 16 19:26:01.152 INFO [stderr] 
Nov 16 19:26:01.152 INFO [stderr] warning: unused import: `std::fs::File`
Nov 16 19:26:01.152 INFO [stderr]  --> src/display.rs:7:5
Nov 16 19:26:01.152 INFO [stderr]   |
Nov 16 19:26:01.152 INFO [stderr] 7 | use std::fs::File;
Nov 16 19:26:01.152 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 16 19:26:01.152 INFO [stderr] 
Nov 16 19:26:01.152 INFO [stderr] warning: unused imports: `CpuError`, `Cpu`, `DecoderError`
Nov 16 19:26:01.152 INFO [stderr]  --> src/main.rs:9:11
Nov 16 19:26:01.152 INFO [stderr]   |
Nov 16 19:26:01.152 INFO [stderr] 9 | use cpu::{Cpu, DecoderError, CpuError};
Nov 16 19:26:01.152 INFO [stderr]   |           ^^^  ^^^^^^^^^^^^  ^^^^^^^^
Nov 16 19:26:01.152 INFO [stderr] 
Nov 16 19:26:01.152 INFO [stderr] warning: unused imports: `Event`, `VirtualKeyCode`
Nov 16 19:26:01.152 INFO [stderr]   --> src/main.rs:10:21
Nov 16 19:26:01.152 INFO [stderr]    |
Nov 16 19:26:01.152 INFO [stderr] 10 | use glium::glutin::{VirtualKeyCode, Event};
Nov 16 19:26:01.152 INFO [stderr]    |                     ^^^^^^^^^^^^^^  ^^^^^
Nov 16 19:26:01.152 INFO [stderr] 
Nov 16 19:26:01.271 INFO [stderr] warning: unreachable expression
Nov 16 19:26:01.271 INFO [stderr]    --> src/cpu.rs:264:9
Nov 16 19:26:01.271 INFO [stderr]     |
Nov 16 19:26:01.271 INFO [stderr] 264 |         "cls".to_string()
Nov 16 19:26:01.271 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Nov 16 19:26:01.271 INFO [stderr]     |
Nov 16 19:26:01.271 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Nov 16 19:26:01.271 INFO [stderr] 
Nov 16 19:26:01.316 INFO [stderr] warning: unreachable expression
Nov 16 19:26:01.316 INFO [stderr]    --> src/cpu.rs:480:9
Nov 16 19:26:01.317 INFO [stderr]     |
Nov 16 19:26:01.317 INFO [stderr] 480 |         format!("wkp {:#x}", self.regs.v[reg])
Nov 16 19:26:01.317 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:01.317 INFO [stderr]     |
Nov 16 19:26:01.317 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)
Nov 16 19:26:01.317 INFO [stderr] 
Nov 16 19:26:01.439 INFO [stderr] warning: unused variable: `what`
Nov 16 19:26:01.439 INFO [stderr]   --> src/cpu.rs:75:17
Nov 16 19:26:01.439 INFO [stderr]    |
Nov 16 19:26:01.439 INFO [stderr] 75 |             Err(what) => Err(CpuError::DecoderError)
Nov 16 19:26:01.439 INFO [stderr]    |                 ^^^^ help: consider using `_what` instead
Nov 16 19:26:01.439 INFO [stderr]    |
Nov 16 19:26:01.439 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 19:26:01.439 INFO [stderr] 
Nov 16 19:26:01.439 INFO [stderr] warning: unused variable: `placeholder_display`
Nov 16 19:26:01.439 INFO [stderr]    --> src/cpu.rs:262:23
Nov 16 19:26:01.439 INFO [stderr]     |
Nov 16 19:26:01.439 INFO [stderr] 262 |     fn cls(&mut self, placeholder_display : u8 ) -> String  {
Nov 16 19:26:01.439 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^^^ help: consider using `_placeholder_display` instead
Nov 16 19:26:01.439 INFO [stderr] 
Nov 16 19:26:01.439 INFO [stderr] warning: unused variable: `reg`
Nov 16 19:26:01.439 INFO [stderr]    --> src/cpu.rs:478:37
Nov 16 19:26:01.439 INFO [stderr]     |
Nov 16 19:26:01.439 INFO [stderr] 478 |     fn wait_for_keypress(&mut self, reg: usize) -> String  {
Nov 16 19:26:01.439 INFO [stderr]     |                                     ^^^ help: consider using `_reg` instead
Nov 16 19:26:01.439 INFO [stderr] 
Nov 16 19:26:01.439 INFO [stderr] warning: unused variable: `title`
Nov 16 19:26:01.439 INFO [stderr]   --> src/display.rs:30:39
Nov 16 19:26:01.439 INFO [stderr]    |
Nov 16 19:26:01.439 INFO [stderr] 30 |     pub fn new(dimension: (u32, u32), title: &str) -> Result<Self, DisplayBuildError> {
Nov 16 19:26:01.439 INFO [stderr]    |                                       ^^^^^ help: consider using `_title` instead
Nov 16 19:26:01.439 INFO [stderr] 
Nov 16 19:26:01.539 INFO [stderr] warning: variable does not need to be mutable
Nov 16 19:26:01.539 INFO [stderr]   --> src/display.rs:99:13
Nov 16 19:26:01.539 INFO [stderr]    |
Nov 16 19:26:01.539 INFO [stderr] 99 |         let mut collision = false;
Nov 16 19:26:01.539 INFO [stderr]    |             ----^^^^^^^^^
Nov 16 19:26:01.539 INFO [stderr]    |             |
Nov 16 19:26:01.539 INFO [stderr]    |             help: remove this `mut`
Nov 16 19:26:01.539 INFO [stderr]    |
Nov 16 19:26:01.539 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 19:26:01.547 INFO [stderr] 
Nov 16 19:26:01.551 INFO [stderr] warning: field is never used: `is_closing`
Nov 16 19:26:01.551 INFO [stderr]  --> src/input.rs:8:5
Nov 16 19:26:01.551 INFO [stderr]   |
Nov 16 19:26:01.551 INFO [stderr] 8 |     is_closing : bool,
Nov 16 19:26:01.551 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 16 19:26:01.551 INFO [stderr]   |
Nov 16 19:26:01.551 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 19:26:01.551 INFO [stderr] 
Nov 16 19:26:01.551 INFO [stderr] warning: variant is never constructed: `InvalidDimensionError`
Nov 16 19:26:01.551 INFO [stderr]   --> src/display.rs:17:5
Nov 16 19:26:01.551 INFO [stderr]    |
Nov 16 19:26:01.551 INFO [stderr] 17 |     InvalidDimensionError,
Nov 16 19:26:01.551 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:01.551 INFO [stderr] 
Nov 16 19:26:06.097 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
Nov 16 19:26:06.107 INFO [stderr] su: No module specific data is present
Nov 16 19:26:07.574 INFO running `"docker" "inspect" "f9077d758b6c9260a89747aaf1d7e8e27c2d9403b8e199d51086acc5c12070fb"`
Nov 16 19:26:07.941 INFO running `"docker" "rm" "-f" "f9077d758b6c9260a89747aaf1d7e8e27c2d9403b8e199d51086acc5c12070fb"`
Nov 16 19:26:08.226 INFO [stdout] f9077d758b6c9260a89747aaf1d7e8e27c2d9403b8e199d51086acc5c12070fb
Nov 16 19:26:08.235 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 19:26:08.829 INFO [stdout] 345be7d230e27bf72d8ecfe9f986c7e6f7b6ebc0a288c920f02f190e345848d5
Nov 16 19:26:08.832 INFO running `"docker" "start" "-a" "345be7d230e27bf72d8ecfe9f986c7e6f7b6ebc0a288c920f02f190e345848d5"`
Nov 16 19:26:11.517 INFO [stderr] usermod: no changes
Nov 16 19:26:11.812 INFO [stderr]    Compiling chip8-rust v0.1.0 (/source)
Nov 16 19:26:12.595 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Nov 16 19:26:12.595 INFO [stderr]    --> src/cpu.rs:446:13
Nov 16 19:26:12.595 INFO [stderr]     |
Nov 16 19:26:12.595 INFO [stderr] 446 |         use glium::glutin::VirtualKeyCode;
Nov 16 19:26:12.595 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:12.596 INFO [stderr]     |
Nov 16 19:26:12.596 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 16 19:26:12.596 INFO [stderr] 
Nov 16 19:26:12.596 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Nov 16 19:26:12.596 INFO [stderr]    --> src/cpu.rs:455:13
Nov 16 19:26:12.596 INFO [stderr]     |
Nov 16 19:26:12.596 INFO [stderr] 455 |         use glium::glutin::VirtualKeyCode;
Nov 16 19:26:12.596 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:12.596 INFO [stderr] 
Nov 16 19:26:12.596 INFO [stderr] warning: unused import: `glium::DisplayBuild`
Nov 16 19:26:12.596 INFO [stderr]  --> src/input.rs:3:5
Nov 16 19:26:12.596 INFO [stderr]   |
Nov 16 19:26:12.596 INFO [stderr] 3 | use glium::DisplayBuild;
Nov 16 19:26:12.596 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:12.596 INFO [stderr] 
Nov 16 19:26:12.596 INFO [stderr] warning: unused import: `std::thread`
Nov 16 19:26:12.596 INFO [stderr]  --> src/input.rs:4:5
Nov 16 19:26:12.596 INFO [stderr]   |
Nov 16 19:26:12.596 INFO [stderr] 4 | use std::thread;
Nov 16 19:26:12.596 INFO [stderr]   |     ^^^^^^^^^^^
Nov 16 19:26:12.596 INFO [stderr] 
Nov 16 19:26:12.596 INFO [stderr] warning: unused import: `std::time`
Nov 16 19:26:12.596 INFO [stderr]  --> src/input.rs:5:5
Nov 16 19:26:12.596 INFO [stderr]   |
Nov 16 19:26:12.596 INFO [stderr] 5 | use std::time;
Nov 16 19:26:12.600 INFO [stderr]   |     ^^^^^^^^^
Nov 16 19:26:12.601 INFO [stderr] 
Nov 16 19:26:12.601 INFO [stderr] warning: unused import: `glium::glutin`
Nov 16 19:26:12.601 INFO [stderr]  --> src/display.rs:4:5
Nov 16 19:26:12.601 INFO [stderr]   |
Nov 16 19:26:12.601 INFO [stderr] 4 | use glium::glutin;
Nov 16 19:26:12.601 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 16 19:26:12.601 INFO [stderr] 
Nov 16 19:26:12.601 INFO [stderr] warning: unused import: `std::path::Path`
Nov 16 19:26:12.601 INFO [stderr]  --> src/display.rs:6:5
Nov 16 19:26:12.601 INFO [stderr]   |
Nov 16 19:26:12.601 INFO [stderr] 6 | use std::path::Path;
Nov 16 19:26:12.601 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Nov 16 19:26:12.601 INFO [stderr] 
Nov 16 19:26:12.601 INFO [stderr] warning: unused import: `std::fs::File`
Nov 16 19:26:12.601 INFO [stderr]  --> src/display.rs:7:5
Nov 16 19:26:12.601 INFO [stderr]   |
Nov 16 19:26:12.601 INFO [stderr] 7 | use std::fs::File;
Nov 16 19:26:12.601 INFO [stderr]   |     ^^^^^^^^^^^^^
Nov 16 19:26:12.601 INFO [stderr] 
Nov 16 19:26:12.601 INFO [stderr] warning: unused imports: `CpuError`, `Cpu`, `DecoderError`
Nov 16 19:26:12.605 INFO [stderr]  --> src/main.rs:9:11
Nov 16 19:26:12.605 INFO [stderr]   |
Nov 16 19:26:12.605 INFO [stderr] 9 | use cpu::{Cpu, DecoderError, CpuError};
Nov 16 19:26:12.605 INFO [stderr]   |           ^^^  ^^^^^^^^^^^^  ^^^^^^^^
Nov 16 19:26:12.605 INFO [stderr] 
Nov 16 19:26:12.605 INFO [stderr] warning: unused imports: `Event`, `VirtualKeyCode`
Nov 16 19:26:12.605 INFO [stderr]   --> src/main.rs:10:21
Nov 16 19:26:12.605 INFO [stderr]    |
Nov 16 19:26:12.605 INFO [stderr] 10 | use glium::glutin::{VirtualKeyCode, Event};
Nov 16 19:26:12.605 INFO [stderr]    |                     ^^^^^^^^^^^^^^  ^^^^^
Nov 16 19:26:12.605 INFO [stderr] 
Nov 16 19:26:12.721 INFO [stderr] warning: unreachable expression
Nov 16 19:26:12.721 INFO [stderr]    --> src/cpu.rs:264:9
Nov 16 19:26:12.721 INFO [stderr]     |
Nov 16 19:26:12.721 INFO [stderr] 264 |         "cls".to_string()
Nov 16 19:26:12.721 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Nov 16 19:26:12.721 INFO [stderr]     |
Nov 16 19:26:12.723 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Nov 16 19:26:12.723 INFO [stderr] 
Nov 16 19:26:12.768 INFO [stderr] warning: unreachable expression
Nov 16 19:26:12.768 INFO [stderr]    --> src/cpu.rs:480:9
Nov 16 19:26:12.768 INFO [stderr]     |
Nov 16 19:26:12.768 INFO [stderr] 480 |         format!("wkp {:#x}", self.regs.v[reg])
Nov 16 19:26:12.768 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:12.768 INFO [stderr]     |
Nov 16 19:26:12.772 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)
Nov 16 19:26:12.772 INFO [stderr] 
Nov 16 19:26:12.854 INFO [stderr] warning: unused variable: `what`
Nov 16 19:26:12.854 INFO [stderr]   --> src/cpu.rs:75:17
Nov 16 19:26:12.854 INFO [stderr]    |
Nov 16 19:26:12.854 INFO [stderr] 75 |             Err(what) => Err(CpuError::DecoderError)
Nov 16 19:26:12.854 INFO [stderr]    |                 ^^^^ help: consider using `_what` instead
Nov 16 19:26:12.854 INFO [stderr]    |
Nov 16 19:26:12.854 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 19:26:12.854 INFO [stderr] 
Nov 16 19:26:12.856 INFO [stderr] warning: unused variable: `placeholder_display`
Nov 16 19:26:12.856 INFO [stderr]    --> src/cpu.rs:262:23
Nov 16 19:26:12.856 INFO [stderr]     |
Nov 16 19:26:12.856 INFO [stderr] 262 |     fn cls(&mut self, placeholder_display : u8 ) -> String  {
Nov 16 19:26:12.856 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^^^ help: consider using `_placeholder_display` instead
Nov 16 19:26:12.856 INFO [stderr] 
Nov 16 19:26:12.856 INFO [stderr] warning: unused variable: `reg`
Nov 16 19:26:12.856 INFO [stderr]    --> src/cpu.rs:478:37
Nov 16 19:26:12.856 INFO [stderr]     |
Nov 16 19:26:12.856 INFO [stderr] 478 |     fn wait_for_keypress(&mut self, reg: usize) -> String  {
Nov 16 19:26:12.856 INFO [stderr]     |                                     ^^^ help: consider using `_reg` instead
Nov 16 19:26:12.856 INFO [stderr] 
Nov 16 19:26:12.856 INFO [stderr] warning: unused variable: `title`
Nov 16 19:26:12.856 INFO [stderr]   --> src/display.rs:30:39
Nov 16 19:26:12.856 INFO [stderr]    |
Nov 16 19:26:12.856 INFO [stderr] 30 |     pub fn new(dimension: (u32, u32), title: &str) -> Result<Self, DisplayBuildError> {
Nov 16 19:26:12.856 INFO [stderr]    |                                       ^^^^^ help: consider using `_title` instead
Nov 16 19:26:12.856 INFO [stderr] 
Nov 16 19:26:12.929 INFO [stderr] warning: variable does not need to be mutable
Nov 16 19:26:12.929 INFO [stderr]   --> src/display.rs:99:13
Nov 16 19:26:12.929 INFO [stderr]    |
Nov 16 19:26:12.929 INFO [stderr] 99 |         let mut collision = false;
Nov 16 19:26:12.929 INFO [stderr]    |             ----^^^^^^^^^
Nov 16 19:26:12.929 INFO [stderr]    |             |
Nov 16 19:26:12.929 INFO [stderr]    |             help: remove this `mut`
Nov 16 19:26:12.929 INFO [stderr]    |
Nov 16 19:26:12.929 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 19:26:12.929 INFO [stderr] 
Nov 16 19:26:12.936 INFO [stderr] warning: field is never used: `is_closing`
Nov 16 19:26:12.936 INFO [stderr]  --> src/input.rs:8:5
Nov 16 19:26:12.936 INFO [stderr]   |
Nov 16 19:26:12.936 INFO [stderr] 8 |     is_closing : bool,
Nov 16 19:26:12.936 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 16 19:26:12.936 INFO [stderr]   |
Nov 16 19:26:12.936 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 19:26:12.936 INFO [stderr] 
Nov 16 19:26:12.936 INFO [stderr] warning: variant is never constructed: `InvalidDimensionError`
Nov 16 19:26:12.936 INFO [stderr]   --> src/display.rs:17:5
Nov 16 19:26:12.936 INFO [stderr]    |
Nov 16 19:26:12.936 INFO [stderr] 17 |     InvalidDimensionError,
Nov 16 19:26:12.936 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 16 19:26:12.936 INFO [stderr] 
Nov 16 19:26:13.372 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
Nov 16 19:26:13.385 INFO [stderr] su: No module specific data is present
Nov 16 19:26:14.775 INFO running `"docker" "inspect" "345be7d230e27bf72d8ecfe9f986c7e6f7b6ebc0a288c920f02f190e345848d5"`
Nov 16 19:26:15.096 INFO running `"docker" "rm" "-f" "345be7d230e27bf72d8ecfe9f986c7e6f7b6ebc0a288c920f02f190e345848d5"`
Nov 16 19:26:15.431 INFO [stdout] 345be7d230e27bf72d8ecfe9f986c7e6f7b6ebc0a288c920f02f190e345848d5
Nov 16 19:26:15.439 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 16 19:26:15.885 INFO [stdout] 6ecfa3dc2987930f7ef801796fee9262546f39a020daf2f4dedf6385a70af3f1
Nov 16 19:26:15.885 INFO running `"docker" "start" "-a" "6ecfa3dc2987930f7ef801796fee9262546f39a020daf2f4dedf6385a70af3f1"`
Nov 16 19:26:17.587 INFO [stderr] usermod: no changes
Nov 16 19:26:17.845 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
Nov 16 19:26:17.855 INFO [stderr]      Running /target/debug/deps/chip8_rust-3e073352cb132244
Nov 16 19:26:17.875 INFO [stdout] 
Nov 16 19:26:17.875 INFO [stdout] running 0 tests
Nov 16 19:26:17.875 INFO [stdout] 
Nov 16 19:26:17.875 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 19:26:17.875 INFO [stdout] 
Nov 16 19:26:17.877 INFO [stderr] su: No module specific data is present
Nov 16 19:26:18.979 INFO running `"docker" "inspect" "6ecfa3dc2987930f7ef801796fee9262546f39a020daf2f4dedf6385a70af3f1"`
Nov 16 19:26:19.275 INFO running `"docker" "rm" "-f" "6ecfa3dc2987930f7ef801796fee9262546f39a020daf2f4dedf6385a70af3f1"`
Nov 16 19:26:19.567 INFO [stdout] 6ecfa3dc2987930f7ef801796fee9262546f39a020daf2f4dedf6385a70af3f1