Dec 05 14:10:19.771 INFO testing mmiecz/chip8-rust against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 14:10:19.771 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 05 14:10:20.218 INFO [stdout] 1968402ed764f31bc8da6e36a9bd81581cd67befbd236f2c34c2af68bcb99e69
Dec 05 14:10:20.223 INFO running `"docker" "start" "-a" "1968402ed764f31bc8da6e36a9bd81581cd67befbd236f2c34c2af68bcb99e69"`
Dec 05 14:10:22.195 INFO [stderr] usermod: no changes
Dec 05 14:10:22.462 INFO [stderr]    Compiling serde v0.8.22
Dec 05 14:10:22.504 INFO [stderr]    Compiling shared_library v0.1.5
Dec 05 14:10:22.504 INFO [stderr]    Compiling phf_generator v0.7.20
Dec 05 14:10:22.526 INFO [stderr]    Compiling x11-dl v2.12.0
Dec 05 14:10:22.527 INFO [stderr]    Compiling fs2 v0.2.5
Dec 05 14:10:22.528 INFO [stderr]    Compiling tempfile v2.1.4
Dec 05 14:10:22.528 INFO [stderr]    Compiling backtrace v0.2.3
Dec 05 14:10:24.692 INFO [stderr]    Compiling memmap v0.4.0
Dec 05 14:10:24.816 INFO [stderr]    Compiling phf_codegen v0.7.20
Dec 05 14:10:25.324 INFO [stderr]    Compiling osmesa-sys v0.1.2
Dec 05 14:10:26.616 INFO [stderr]    Compiling target_build_utils v0.1.2
Dec 05 14:10:33.852 INFO [stderr]    Compiling serde_json v0.8.4
Dec 05 14:10:39.042 INFO [stderr]    Compiling libloading v0.3.1
Dec 05 14:10:41.200 INFO [stderr]    Compiling dlib v0.3.1
Dec 05 14:10:41.452 INFO [stderr]    Compiling wayland-sys v0.7.6
Dec 05 14:10:42.474 INFO [stderr]    Compiling wayland-client v0.7.6
Dec 05 14:10:43.956 INFO [stderr]    Compiling wayland-kbd v0.6.2
Dec 05 14:10:43.956 INFO [stderr]    Compiling wayland-window v0.4.3
Dec 05 14:10:45.028 INFO [stderr]    Compiling winit v0.5.7
Dec 05 14:10:47.520 INFO [stderr]    Compiling glutin v0.7.2
Dec 05 14:10:49.969 INFO [stderr]    Compiling glium v0.16.0
Dec 05 14:11:19.937 INFO [stderr]    Compiling chip8-rust v0.1.0 (/source)
Dec 05 14:11:20.848 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 05 14:11:20.851 INFO [stderr]    --> src/cpu.rs:446:13
Dec 05 14:11:20.851 INFO [stderr]     |
Dec 05 14:11:20.851 INFO [stderr] 446 |         use glium::glutin::VirtualKeyCode;
Dec 05 14:11:20.851 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:20.851 INFO [stderr]     |
Dec 05 14:11:20.851 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 05 14:11:20.851 INFO [stderr] 
Dec 05 14:11:20.851 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 05 14:11:20.851 INFO [stderr]    --> src/cpu.rs:455:13
Dec 05 14:11:20.851 INFO [stderr]     |
Dec 05 14:11:20.851 INFO [stderr] 455 |         use glium::glutin::VirtualKeyCode;
Dec 05 14:11:20.851 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:20.851 INFO [stderr] 
Dec 05 14:11:20.851 INFO [stderr] warning: unused import: `glium::DisplayBuild`
Dec 05 14:11:20.851 INFO [stderr]  --> src/input.rs:3:5
Dec 05 14:11:20.851 INFO [stderr]   |
Dec 05 14:11:20.851 INFO [stderr] 3 | use glium::DisplayBuild;
Dec 05 14:11:20.852 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:20.852 INFO [stderr] 
Dec 05 14:11:20.852 INFO [stderr] warning: unused import: `std::thread`
Dec 05 14:11:20.852 INFO [stderr]  --> src/input.rs:4:5
Dec 05 14:11:20.853 INFO [stderr]   |
Dec 05 14:11:20.853 INFO [stderr] 4 | use std::thread;
Dec 05 14:11:20.853 INFO [stderr]   |     ^^^^^^^^^^^
Dec 05 14:11:20.853 INFO [stderr] 
Dec 05 14:11:20.853 INFO [stderr] warning: unused import: `std::time`
Dec 05 14:11:20.853 INFO [stderr]  --> src/input.rs:5:5
Dec 05 14:11:20.853 INFO [stderr]   |
Dec 05 14:11:20.853 INFO [stderr] 5 | use std::time;
Dec 05 14:11:20.854 INFO [stderr]   |     ^^^^^^^^^
Dec 05 14:11:20.854 INFO [stderr] 
Dec 05 14:11:20.854 INFO [stderr] warning: unused import: `glium::glutin`
Dec 05 14:11:20.854 INFO [stderr]  --> src/display.rs:4:5
Dec 05 14:11:20.854 INFO [stderr]   |
Dec 05 14:11:20.854 INFO [stderr] 4 | use glium::glutin;
Dec 05 14:11:20.855 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 14:11:20.855 INFO [stderr] 
Dec 05 14:11:20.855 INFO [stderr] warning: unused import: `std::path::Path`
Dec 05 14:11:20.855 INFO [stderr]  --> src/display.rs:6:5
Dec 05 14:11:20.855 INFO [stderr]   |
Dec 05 14:11:20.855 INFO [stderr] 6 | use std::path::Path;
Dec 05 14:11:20.856 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 05 14:11:20.856 INFO [stderr] 
Dec 05 14:11:20.856 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 14:11:20.856 INFO [stderr]  --> src/display.rs:7:5
Dec 05 14:11:20.856 INFO [stderr]   |
Dec 05 14:11:20.856 INFO [stderr] 7 | use std::fs::File;
Dec 05 14:11:20.856 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 14:11:20.856 INFO [stderr] 
Dec 05 14:11:20.856 INFO [stderr] warning: unused imports: `CpuError`, `Cpu`, `DecoderError`
Dec 05 14:11:20.856 INFO [stderr]  --> src/main.rs:9:11
Dec 05 14:11:20.856 INFO [stderr]   |
Dec 05 14:11:20.856 INFO [stderr] 9 | use cpu::{Cpu, DecoderError, CpuError};
Dec 05 14:11:20.856 INFO [stderr]   |           ^^^  ^^^^^^^^^^^^  ^^^^^^^^
Dec 05 14:11:20.857 INFO [stderr] 
Dec 05 14:11:20.857 INFO [stderr] warning: unused imports: `Event`, `VirtualKeyCode`
Dec 05 14:11:20.857 INFO [stderr]   --> src/main.rs:10:21
Dec 05 14:11:20.857 INFO [stderr]    |
Dec 05 14:11:20.857 INFO [stderr] 10 | use glium::glutin::{VirtualKeyCode, Event};
Dec 05 14:11:20.857 INFO [stderr]    |                     ^^^^^^^^^^^^^^  ^^^^^
Dec 05 14:11:20.857 INFO [stderr] 
Dec 05 14:11:20.969 INFO [stderr] warning: unreachable expression
Dec 05 14:11:20.969 INFO [stderr]    --> src/cpu.rs:264:9
Dec 05 14:11:20.969 INFO [stderr]     |
Dec 05 14:11:20.969 INFO [stderr] 264 |         "cls".to_string()
Dec 05 14:11:20.969 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Dec 05 14:11:20.969 INFO [stderr]     |
Dec 05 14:11:20.969 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 05 14:11:20.969 INFO [stderr] 
Dec 05 14:11:21.013 INFO [stderr] warning: unreachable expression
Dec 05 14:11:21.013 INFO [stderr]    --> src/cpu.rs:480:9
Dec 05 14:11:21.013 INFO [stderr]     |
Dec 05 14:11:21.013 INFO [stderr] 480 |         format!("wkp {:#x}", self.regs.v[reg])
Dec 05 14:11:21.013 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:21.013 INFO [stderr]     |
Dec 05 14:11:21.013 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 05 14:11:21.013 INFO [stderr] 
Dec 05 14:11:21.088 INFO [stderr] warning: unused variable: `what`
Dec 05 14:11:21.088 INFO [stderr]   --> src/cpu.rs:75:17
Dec 05 14:11:21.088 INFO [stderr]    |
Dec 05 14:11:21.088 INFO [stderr] 75 |             Err(what) => Err(CpuError::DecoderError)
Dec 05 14:11:21.088 INFO [stderr]    |                 ^^^^ help: consider using `_what` instead
Dec 05 14:11:21.088 INFO [stderr]    |
Dec 05 14:11:21.088 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 14:11:21.088 INFO [stderr] 
Dec 05 14:11:21.088 INFO [stderr] warning: unused variable: `placeholder_display`
Dec 05 14:11:21.088 INFO [stderr]    --> src/cpu.rs:262:23
Dec 05 14:11:21.088 INFO [stderr]     |
Dec 05 14:11:21.088 INFO [stderr] 262 |     fn cls(&mut self, placeholder_display : u8 ) -> String  {
Dec 05 14:11:21.088 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^^^ help: consider using `_placeholder_display` instead
Dec 05 14:11:21.088 INFO [stderr] 
Dec 05 14:11:21.088 INFO [stderr] warning: unused variable: `reg`
Dec 05 14:11:21.088 INFO [stderr]    --> src/cpu.rs:478:37
Dec 05 14:11:21.088 INFO [stderr]     |
Dec 05 14:11:21.088 INFO [stderr] 478 |     fn wait_for_keypress(&mut self, reg: usize) -> String  {
Dec 05 14:11:21.088 INFO [stderr]     |                                     ^^^ help: consider using `_reg` instead
Dec 05 14:11:21.088 INFO [stderr] 
Dec 05 14:11:21.089 INFO [stderr] warning: unused variable: `title`
Dec 05 14:11:21.089 INFO [stderr]   --> src/display.rs:30:39
Dec 05 14:11:21.089 INFO [stderr]    |
Dec 05 14:11:21.089 INFO [stderr] 30 |     pub fn new(dimension: (u32, u32), title: &str) -> Result<Self, DisplayBuildError> {
Dec 05 14:11:21.089 INFO [stderr]    |                                       ^^^^^ help: consider using `_title` instead
Dec 05 14:11:21.089 INFO [stderr] 
Dec 05 14:11:21.157 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:11:21.157 INFO [stderr]   --> src/display.rs:99:13
Dec 05 14:11:21.158 INFO [stderr]    |
Dec 05 14:11:21.158 INFO [stderr] 99 |         let mut collision = false;
Dec 05 14:11:21.158 INFO [stderr]    |             ----^^^^^^^^^
Dec 05 14:11:21.158 INFO [stderr]    |             |
Dec 05 14:11:21.158 INFO [stderr]    |             help: remove this `mut`
Dec 05 14:11:21.158 INFO [stderr]    |
Dec 05 14:11:21.159 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 14:11:21.159 INFO [stderr] 
Dec 05 14:11:21.164 INFO [stderr] warning: field is never used: `is_closing`
Dec 05 14:11:21.164 INFO [stderr]  --> src/input.rs:8:5
Dec 05 14:11:21.164 INFO [stderr]   |
Dec 05 14:11:21.164 INFO [stderr] 8 |     is_closing : bool,
Dec 05 14:11:21.165 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 05 14:11:21.165 INFO [stderr]   |
Dec 05 14:11:21.165 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 14:11:21.165 INFO [stderr] 
Dec 05 14:11:21.165 INFO [stderr] warning: variant is never constructed: `InvalidDimensionError`
Dec 05 14:11:21.165 INFO [stderr]   --> src/display.rs:17:5
Dec 05 14:11:21.166 INFO [stderr]    |
Dec 05 14:11:21.166 INFO [stderr] 17 |     InvalidDimensionError,
Dec 05 14:11:21.166 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:21.166 INFO [stderr] 
Dec 05 14:11:25.885 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
Dec 05 14:11:25.901 INFO [stderr] su: No module specific data is present
Dec 05 14:11:27.412 INFO running `"docker" "inspect" "1968402ed764f31bc8da6e36a9bd81581cd67befbd236f2c34c2af68bcb99e69"`
Dec 05 14:11:27.770 INFO running `"docker" "rm" "-f" "1968402ed764f31bc8da6e36a9bd81581cd67befbd236f2c34c2af68bcb99e69"`
Dec 05 14:11:28.096 INFO [stdout] 1968402ed764f31bc8da6e36a9bd81581cd67befbd236f2c34c2af68bcb99e69
Dec 05 14:11:28.102 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 05 14:11:28.572 INFO [stdout] 6f46d66d001cac21fcedad6a151d29b886986c3f40d5fc12f205d830f8121bef
Dec 05 14:11:28.574 INFO running `"docker" "start" "-a" "6f46d66d001cac21fcedad6a151d29b886986c3f40d5fc12f205d830f8121bef"`
Dec 05 14:11:31.028 INFO [stderr] usermod: no changes
Dec 05 14:11:31.238 INFO [stderr]    Compiling chip8-rust v0.1.0 (/source)
Dec 05 14:11:32.262 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 05 14:11:32.263 INFO [stderr]    --> src/cpu.rs:446:13
Dec 05 14:11:32.263 INFO [stderr]     |
Dec 05 14:11:32.263 INFO [stderr] 446 |         use glium::glutin::VirtualKeyCode;
Dec 05 14:11:32.264 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:32.264 INFO [stderr]     |
Dec 05 14:11:32.264 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 05 14:11:32.264 INFO [stderr] 
Dec 05 14:11:32.264 INFO [stderr] warning: unused import: `glium::glutin::VirtualKeyCode`
Dec 05 14:11:32.265 INFO [stderr]    --> src/cpu.rs:455:13
Dec 05 14:11:32.265 INFO [stderr]     |
Dec 05 14:11:32.265 INFO [stderr] 455 |         use glium::glutin::VirtualKeyCode;
Dec 05 14:11:32.266 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:32.266 INFO [stderr] 
Dec 05 14:11:32.266 INFO [stderr] warning: unused import: `glium::DisplayBuild`
Dec 05 14:11:32.266 INFO [stderr]  --> src/input.rs:3:5
Dec 05 14:11:32.267 INFO [stderr]   |
Dec 05 14:11:32.267 INFO [stderr] 3 | use glium::DisplayBuild;
Dec 05 14:11:32.267 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:32.267 INFO [stderr] 
Dec 05 14:11:32.268 INFO [stderr] warning: unused import: `std::thread`
Dec 05 14:11:32.268 INFO [stderr]  --> src/input.rs:4:5
Dec 05 14:11:32.268 INFO [stderr]   |
Dec 05 14:11:32.268 INFO [stderr] 4 | use std::thread;
Dec 05 14:11:32.269 INFO [stderr]   |     ^^^^^^^^^^^
Dec 05 14:11:32.269 INFO [stderr] 
Dec 05 14:11:32.269 INFO [stderr] warning: unused import: `std::time`
Dec 05 14:11:32.270 INFO [stderr]  --> src/input.rs:5:5
Dec 05 14:11:32.270 INFO [stderr]   |
Dec 05 14:11:32.270 INFO [stderr] 5 | use std::time;
Dec 05 14:11:32.271 INFO [stderr]   |     ^^^^^^^^^
Dec 05 14:11:32.271 INFO [stderr] 
Dec 05 14:11:32.271 INFO [stderr] warning: unused import: `glium::glutin`
Dec 05 14:11:32.272 INFO [stderr]  --> src/display.rs:4:5
Dec 05 14:11:32.272 INFO [stderr]   |
Dec 05 14:11:32.272 INFO [stderr] 4 | use glium::glutin;
Dec 05 14:11:32.273 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 14:11:32.273 INFO [stderr] 
Dec 05 14:11:32.273 INFO [stderr] warning: unused import: `std::path::Path`
Dec 05 14:11:32.274 INFO [stderr]  --> src/display.rs:6:5
Dec 05 14:11:32.274 INFO [stderr]   |
Dec 05 14:11:32.274 INFO [stderr] 6 | use std::path::Path;
Dec 05 14:11:32.274 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 05 14:11:32.274 INFO [stderr] 
Dec 05 14:11:32.274 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 14:11:32.274 INFO [stderr]  --> src/display.rs:7:5
Dec 05 14:11:32.274 INFO [stderr]   |
Dec 05 14:11:32.274 INFO [stderr] 7 | use std::fs::File;
Dec 05 14:11:32.274 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 14:11:32.274 INFO [stderr] 
Dec 05 14:11:32.274 INFO [stderr] warning: unused imports: `CpuError`, `Cpu`, `DecoderError`
Dec 05 14:11:32.274 INFO [stderr]  --> src/main.rs:9:11
Dec 05 14:11:32.274 INFO [stderr]   |
Dec 05 14:11:32.274 INFO [stderr] 9 | use cpu::{Cpu, DecoderError, CpuError};
Dec 05 14:11:32.274 INFO [stderr]   |           ^^^  ^^^^^^^^^^^^  ^^^^^^^^
Dec 05 14:11:32.274 INFO [stderr] 
Dec 05 14:11:32.274 INFO [stderr] warning: unused imports: `Event`, `VirtualKeyCode`
Dec 05 14:11:32.274 INFO [stderr]   --> src/main.rs:10:21
Dec 05 14:11:32.274 INFO [stderr]    |
Dec 05 14:11:32.274 INFO [stderr] 10 | use glium::glutin::{VirtualKeyCode, Event};
Dec 05 14:11:32.274 INFO [stderr]    |                     ^^^^^^^^^^^^^^  ^^^^^
Dec 05 14:11:32.274 INFO [stderr] 
Dec 05 14:11:32.391 INFO [stderr] warning: unreachable expression
Dec 05 14:11:32.392 INFO [stderr]    --> src/cpu.rs:264:9
Dec 05 14:11:32.392 INFO [stderr]     |
Dec 05 14:11:32.393 INFO [stderr] 264 |         "cls".to_string()
Dec 05 14:11:32.393 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^
Dec 05 14:11:32.393 INFO [stderr]     |
Dec 05 14:11:32.393 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 05 14:11:32.394 INFO [stderr] 
Dec 05 14:11:32.438 INFO [stderr] warning: unreachable expression
Dec 05 14:11:32.438 INFO [stderr]    --> src/cpu.rs:480:9
Dec 05 14:11:32.438 INFO [stderr]     |
Dec 05 14:11:32.438 INFO [stderr] 480 |         format!("wkp {:#x}", self.regs.v[reg])
Dec 05 14:11:32.438 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:32.438 INFO [stderr]     |
Dec 05 14:11:32.438 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 05 14:11:32.438 INFO [stderr] 
Dec 05 14:11:32.516 INFO [stderr] warning: unused variable: `what`
Dec 05 14:11:32.516 INFO [stderr]   --> src/cpu.rs:75:17
Dec 05 14:11:32.516 INFO [stderr]    |
Dec 05 14:11:32.516 INFO [stderr] 75 |             Err(what) => Err(CpuError::DecoderError)
Dec 05 14:11:32.516 INFO [stderr]    |                 ^^^^ help: consider using `_what` instead
Dec 05 14:11:32.516 INFO [stderr]    |
Dec 05 14:11:32.516 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 14:11:32.516 INFO [stderr] 
Dec 05 14:11:32.516 INFO [stderr] warning: unused variable: `placeholder_display`
Dec 05 14:11:32.516 INFO [stderr]    --> src/cpu.rs:262:23
Dec 05 14:11:32.516 INFO [stderr]     |
Dec 05 14:11:32.516 INFO [stderr] 262 |     fn cls(&mut self, placeholder_display : u8 ) -> String  {
Dec 05 14:11:32.517 INFO [stderr]     |                       ^^^^^^^^^^^^^^^^^^^ help: consider using `_placeholder_display` instead
Dec 05 14:11:32.517 INFO [stderr] 
Dec 05 14:11:32.517 INFO [stderr] warning: unused variable: `reg`
Dec 05 14:11:32.517 INFO [stderr]    --> src/cpu.rs:478:37
Dec 05 14:11:32.517 INFO [stderr]     |
Dec 05 14:11:32.517 INFO [stderr] 478 |     fn wait_for_keypress(&mut self, reg: usize) -> String  {
Dec 05 14:11:32.517 INFO [stderr]     |                                     ^^^ help: consider using `_reg` instead
Dec 05 14:11:32.517 INFO [stderr] 
Dec 05 14:11:32.517 INFO [stderr] warning: unused variable: `title`
Dec 05 14:11:32.517 INFO [stderr]   --> src/display.rs:30:39
Dec 05 14:11:32.517 INFO [stderr]    |
Dec 05 14:11:32.517 INFO [stderr] 30 |     pub fn new(dimension: (u32, u32), title: &str) -> Result<Self, DisplayBuildError> {
Dec 05 14:11:32.517 INFO [stderr]    |                                       ^^^^^ help: consider using `_title` instead
Dec 05 14:11:32.517 INFO [stderr] 
Dec 05 14:11:32.581 INFO [stderr] warning: variable does not need to be mutable
Dec 05 14:11:32.581 INFO [stderr]   --> src/display.rs:99:13
Dec 05 14:11:32.581 INFO [stderr]    |
Dec 05 14:11:32.581 INFO [stderr] 99 |         let mut collision = false;
Dec 05 14:11:32.581 INFO [stderr]    |             ----^^^^^^^^^
Dec 05 14:11:32.581 INFO [stderr]    |             |
Dec 05 14:11:32.581 INFO [stderr]    |             help: remove this `mut`
Dec 05 14:11:32.581 INFO [stderr]    |
Dec 05 14:11:32.581 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 14:11:32.581 INFO [stderr] 
Dec 05 14:11:32.587 INFO [stderr] warning: field is never used: `is_closing`
Dec 05 14:11:32.587 INFO [stderr]  --> src/input.rs:8:5
Dec 05 14:11:32.587 INFO [stderr]   |
Dec 05 14:11:32.587 INFO [stderr] 8 |     is_closing : bool,
Dec 05 14:11:32.587 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 05 14:11:32.587 INFO [stderr]   |
Dec 05 14:11:32.587 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 14:11:32.587 INFO [stderr] 
Dec 05 14:11:32.587 INFO [stderr] warning: variant is never constructed: `InvalidDimensionError`
Dec 05 14:11:32.587 INFO [stderr]   --> src/display.rs:17:5
Dec 05 14:11:32.587 INFO [stderr]    |
Dec 05 14:11:32.587 INFO [stderr] 17 |     InvalidDimensionError,
Dec 05 14:11:32.587 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:11:32.587 INFO [stderr] 
Dec 05 14:11:33.138 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 05 14:11:33.150 INFO [stderr] su: No module specific data is present
Dec 05 14:11:34.663 INFO running `"docker" "inspect" "6f46d66d001cac21fcedad6a151d29b886986c3f40d5fc12f205d830f8121bef"`
Dec 05 14:11:35.010 INFO running `"docker" "rm" "-f" "6f46d66d001cac21fcedad6a151d29b886986c3f40d5fc12f205d830f8121bef"`
Dec 05 14:11:35.300 INFO [stdout] 6f46d66d001cac21fcedad6a151d29b886986c3f40d5fc12f205d830f8121bef
Dec 05 14:11:35.307 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 05 14:11:35.850 INFO [stdout] 72b2a1924ec95b1233f02d751d11d4355247f8db1ce264f1f179b47fc4855344
Dec 05 14:11:35.853 INFO running `"docker" "start" "-a" "72b2a1924ec95b1233f02d751d11d4355247f8db1ce264f1f179b47fc4855344"`
Dec 05 14:11:37.456 INFO [stderr] usermod: no changes
Dec 05 14:11:37.644 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
Dec 05 14:11:37.647 INFO [stderr]      Running /target/debug/deps/chip8_rust-eca1ae718fac18e7
Dec 05 14:11:37.653 INFO [stdout] 
Dec 05 14:11:37.653 INFO [stdout] running 0 tests
Dec 05 14:11:37.653 INFO [stdout] 
Dec 05 14:11:37.653 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 14:11:37.653 INFO [stdout] 
Dec 05 14:11:37.654 INFO [stderr] su: No module specific data is present
Dec 05 14:11:38.646 INFO running `"docker" "inspect" "72b2a1924ec95b1233f02d751d11d4355247f8db1ce264f1f179b47fc4855344"`
Dec 05 14:11:38.906 INFO running `"docker" "rm" "-f" "72b2a1924ec95b1233f02d751d11d4355247f8db1ce264f1f179b47fc4855344"`
Dec 05 14:11:39.320 INFO [stdout] 72b2a1924ec95b1233f02d751d11d4355247f8db1ce264f1f179b47fc4855344