[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/beta-1.38-1/sources/1.37.0/gh/pmasucci/chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pmasucci/chip8'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pmasucci/chip8" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pmasucci/chip8"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pmasucci/chip8 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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/beta-1.38-1/sources/1.37.0/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/beta-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing pmasucci/chip8 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d3efadf6073ed872c68a86939e3b56fa95d6d2e02f01b3c6a53123e9172f8d34
[INFO] running `"docker" "start" "-a" "d3efadf6073ed872c68a86939e3b56fa95d6d2e02f01b3c6a53123e9172f8d34"`
[INFO] [stderr]    Compiling piston-float v1.0.0
[INFO] [stderr]    Compiling shader_version v0.3.0
[INFO] [stderr]    Compiling interpolation v0.2.0
[INFO] [stderr]    Compiling piston-texture v0.6.0
[INFO] [stderr]    Compiling read_color v1.0.0
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling piston-viewport v1.0.0
[INFO] [stderr]    Compiling vecmath v1.0.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling rusttype v0.7.6
[INFO] [stderr]    Compiling pistoncore-input v0.25.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling piston2d-graphics v0.32.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling wayland-sys v0.21.12
[INFO] [stderr]    Compiling pistoncore-window v0.38.0
[INFO] [stderr]    Compiling wayland-commons v0.21.12
[INFO] [stderr]    Compiling image v0.21.1
[INFO] [stderr]    Compiling pistoncore-event_loop v0.43.0
[INFO] [stderr]    Compiling piston v0.43.0
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.62.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.5
[INFO] [stderr]    Compiling winit v0.18.1
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.55.0
[INFO] [stderr]    Compiling 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 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 2m 03s
[INFO] running `"docker" "inspect" "d3efadf6073ed872c68a86939e3b56fa95d6d2e02f01b3c6a53123e9172f8d34"`
[INFO] running `"docker" "rm" "-f" "d3efadf6073ed872c68a86939e3b56fa95d6d2e02f01b3c6a53123e9172f8d34"`
[INFO] [stdout] d3efadf6073ed872c68a86939e3b56fa95d6d2e02f01b3c6a53123e9172f8d34
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 068eb44460718eff437ee9303619b8230d0a0a3c710eb4930ce0f1842611a1ec
[INFO] running `"docker" "start" "-a" "068eb44460718eff437ee9303619b8230d0a0a3c710eb4930ce0f1842611a1ec"`
[INFO] [stderr]    Compiling 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 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 1.78s
[INFO] running `"docker" "inspect" "068eb44460718eff437ee9303619b8230d0a0a3c710eb4930ce0f1842611a1ec"`
[INFO] running `"docker" "rm" "-f" "068eb44460718eff437ee9303619b8230d0a0a3c710eb4930ce0f1842611a1ec"`
[INFO] [stdout] 068eb44460718eff437ee9303619b8230d0a0a3c710eb4930ce0f1842611a1ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a8b0f2fb897c24acd7f6b99811e26a445281c1c44c2d50e9b52e362f8490f7e4
[INFO] running `"docker" "start" "-a" "a8b0f2fb897c24acd7f6b99811e26a445281c1c44c2d50e9b52e362f8490f7e4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/chip8-5d9f5d959a5785a9
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a8b0f2fb897c24acd7f6b99811e26a445281c1c44c2d50e9b52e362f8490f7e4"`
[INFO] running `"docker" "rm" "-f" "a8b0f2fb897c24acd7f6b99811e26a445281c1c44c2d50e9b52e362f8490f7e4"`
[INFO] [stdout] a8b0f2fb897c24acd7f6b99811e26a445281c1c44c2d50e9b52e362f8490f7e4