[INFO] cloning repository https://github.com/pmasucci/chip8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pmasucci/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmasucci%2Fchip8"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmasucci%2Fchip8'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0276d2f684223062d78417b452176b7bd7d768b4
[INFO] checking pmasucci/chip8 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmasucci%2Fchip8" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pmasucci/chip8 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pmasucci/chip8
[INFO] finished tweaking git repo https://github.com/pmasucci/chip8
[INFO] tweaked toml for git repo https://github.com/pmasucci/chip8 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/pmasucci/chip8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a1331bf48f3d975ef1693ce46f8273bae80fff6c6da5ceaa9a3e55d4c98f783d
[INFO] running `"docker" "start" "-a" "a1331bf48f3d975ef1693ce46f8273bae80fff6c6da5ceaa9a3e55d4c98f783d"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking libloading v0.5.0
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.32.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking pistoncore-input v0.25.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.62.0
[INFO] [stderr]     Checking glutin v0.19.0
[INFO] [stderr]     Checking pistoncore-window v0.38.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.43.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.55.0
[INFO] [stderr]     Checking piston v0.43.0
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/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 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 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]     Finished dev [unoptimized + debuginfo] target(s) in 55.77s
[INFO] running `"docker" "inspect" "a1331bf48f3d975ef1693ce46f8273bae80fff6c6da5ceaa9a3e55d4c98f783d"`
[INFO] running `"docker" "rm" "-f" "a1331bf48f3d975ef1693ce46f8273bae80fff6c6da5ceaa9a3e55d4c98f783d"`
[INFO] [stdout] a1331bf48f3d975ef1693ce46f8273bae80fff6c6da5ceaa9a3e55d4c98f783d