[INFO] updating cached repository pmasucci/chip8
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pmasucci/chip8
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pmasucci/chip8" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/pmasucci/chip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/pmasucci/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pmasucci/chip8" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/pmasucci/chip8"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/pmasucci/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0276d2f684223062d78417b452176b7bd7d768b4
[INFO] sha for GitHub repo pmasucci/chip8: 0276d2f684223062d78417b452176b7bd7d768b4
[INFO] validating manifest of pmasucci/chip8 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pmasucci/chip8 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pmasucci/chip8
[INFO] finished frobbing pmasucci/chip8
[INFO] frobbed toml for pmasucci/chip8 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/pmasucci/chip8/Cargo.toml
[INFO] started frobbing pmasucci/chip8
[INFO] finished frobbing pmasucci/chip8
[INFO] frobbed toml for pmasucci/chip8 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/pmasucci/chip8/Cargo.toml
[INFO] crate pmasucci/chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pmasucci/chip8 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-7/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/pmasucci/chip8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e329a804e0f1b7199cb7229d9293e09519a6185145e97afe55e7411c5d08d2b5
[INFO] running `"docker" "start" "-a" "e329a804e0f1b7199cb7229d9293e09519a6185145e97afe55e7411c5d08d2b5"`
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]     Checking pistoncore-input v0.25.0
[INFO] [stderr]     Checking piston2d-graphics v0.32.0
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.62.0
[INFO] [stderr]     Checking pistoncore-window v0.38.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.43.0
[INFO] [stderr]     Checking piston v0.43.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.55.0
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]   --> src/chip.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::{thread, time};
[INFO] [stderr]    |           ^^^^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `thread`, `time`
[INFO] [stderr]   --> src/chip.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::{thread, time};
[INFO] [stderr]    |           ^^^^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]   --> src/chip.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     if let Some(u) = e.update_args() {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]   --> src/cpu.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let bytes_read = if let Ok(bytes_read) = f.read(&mut buffer) {
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_read`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Screen`
[INFO] [stderr]  --> src/drivers/displayDriver.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Screen {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayDriver`
[INFO] [stderr]  --> src/drivers/displayDriver.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct DisplayDriver {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/drivers/displayDriver.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn new(screen: Screen, scale: u8, primary_color: [u8; 4]) -> DisplayDriver {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `display`
[INFO] [stderr]   --> src/drivers/displayDriver.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn display(&mut self, screen: [u8; 2048]) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `displayDriver` should have a snake case name
[INFO] [stderr]  --> src/drivers/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod displayDriver;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `display_driver`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u`
[INFO] [stderr]   --> src/chip.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |     if let Some(u) = e.update_args() {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_u`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bytes_read`
[INFO] [stderr]   --> src/cpu.rs:43:9
[INFO] [stderr]    |
[INFO] [stderr] 43 |     let bytes_read = if let Ok(bytes_read) = f.read(&mut buffer) {
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_read`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Screen`
[INFO] [stderr]  --> src/drivers/displayDriver.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Screen {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DisplayDriver`
[INFO] [stderr]  --> src/drivers/displayDriver.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct DisplayDriver {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/drivers/displayDriver.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn new(screen: Screen, scale: u8, primary_color: [u8; 4]) -> DisplayDriver {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `display`
[INFO] [stderr]   --> src/drivers/displayDriver.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fn display(&mut self, screen: [u8; 2048]) {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: module `displayDriver` should have a snake case name
[INFO] [stderr]  --> src/drivers/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod displayDriver;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `display_driver`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.87s
[INFO] running `"docker" "inspect" "e329a804e0f1b7199cb7229d9293e09519a6185145e97afe55e7411c5d08d2b5"`
[INFO] running `"docker" "rm" "-f" "e329a804e0f1b7199cb7229d9293e09519a6185145e97afe55e7411c5d08d2b5"`
[INFO] [stdout] e329a804e0f1b7199cb7229d9293e09519a6185145e97afe55e7411c5d08d2b5