[INFO] cloning repository https://github.com/pmasucci/chip8
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmasucci%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0276d2f684223062d78417b452176b7bd7d768b4
[INFO] checking pmasucci/chip8 against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmasucci%2Fchip8" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pmasucci/chip8 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-1/source/Cargo.toml
[INFO] crate git repo https://github.com/pmasucci/chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04d59dc69a5f499b041238070218fc57f5f9f85bd44d2d32da656e851f48e921
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "04d59dc69a5f499b041238070218fc57f5f9f85bd44d2d32da656e851f48e921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d59dc69a5f499b041238070218fc57f5f9f85bd44d2d32da656e851f48e921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d59dc69a5f499b041238070218fc57f5f9f85bd44d2d32da656e851f48e921", kill_on_drop: false }`
[INFO] [stdout] 04d59dc69a5f499b041238070218fc57f5f9f85bd44d2d32da656e851f48e921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6321a86e1a47689175aeafa24549fd041d497318814b4af511cb7ba32475843b
[INFO] running `Command { std: "docker" "start" "-a" "6321a86e1a47689175aeafa24549fd041d497318814b4af511cb7ba32475843b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]     Checking nix v0.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.32.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking wayland-client v0.21.12
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking wayland-protocols v0.21.12
[INFO] [stderr]     Checking pistoncore-input v0.25.0
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.62.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking pistoncore-window v0.38.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.43.0
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking piston v0.43.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.55.0
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]   --> src/chip.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{thread, time};
[INFO] [stdout]    |           ^^^^^^  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]   --> src/chip.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{thread, time};
[INFO] [stdout]    |           ^^^^^^  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/chip.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |     if let Some(u) = e.update_args() {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/cpu.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let bytes_read = if let Ok(bytes_read) = f.read(&mut buffer) {
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Screen`
[INFO] [stdout]  --> src/drivers/displayDriver.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Screen {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DisplayDriver`
[INFO] [stdout]  --> src/drivers/displayDriver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct DisplayDriver {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/drivers/displayDriver.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn new(screen: Screen, scale: u8, primary_color: [u8; 4]) -> DisplayDriver {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `display`
[INFO] [stdout]   --> src/drivers/displayDriver.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub fn display(&mut self, screen: [u8; 2048]) {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `displayDriver` should have a snake case name
[INFO] [stdout]  --> src/drivers/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod displayDriver;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `display_driver`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/chip.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |     if let Some(u) = e.update_args() {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bytes_read`
[INFO] [stdout]   --> src/cpu.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let bytes_read = if let Ok(bytes_read) = f.read(&mut buffer) {
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_bytes_read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Screen`
[INFO] [stdout]  --> src/drivers/displayDriver.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Screen {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `DisplayDriver`
[INFO] [stdout]  --> src/drivers/displayDriver.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct DisplayDriver {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/drivers/displayDriver.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |   pub fn new(screen: Screen, scale: u8, primary_color: [u8; 4]) -> DisplayDriver {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `display`
[INFO] [stdout]   --> src/drivers/displayDriver.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub fn display(&mut self, screen: [u8; 2048]) {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `displayDriver` should have a snake case name
[INFO] [stdout]  --> src/drivers/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod displayDriver;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `display_driver`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.77s
[INFO] running `Command { std: "docker" "inspect" "6321a86e1a47689175aeafa24549fd041d497318814b4af511cb7ba32475843b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6321a86e1a47689175aeafa24549fd041d497318814b4af511cb7ba32475843b", kill_on_drop: false }`
[INFO] [stdout] 6321a86e1a47689175aeafa24549fd041d497318814b4af511cb7ba32475843b