[INFO] cloning repository https://github.com/BKDevelop/rusty_chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BKDevelop/rusty_chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBKDevelop%2Frusty_chip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBKDevelop%2Frusty_chip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aae18ee2f23e7b3ec8c14adc5b60a2079fb3c7d5
[INFO] checking BKDevelop/rusty_chip8 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBKDevelop%2Frusty_chip8" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BKDevelop/rusty_chip8 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BKDevelop/rusty_chip8
[INFO] finished tweaking git repo https://github.com/BKDevelop/rusty_chip8
[INFO] tweaked toml for git repo https://github.com/BKDevelop/rusty_chip8 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/BKDevelop/rusty_chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.42.0
[INFO] [stderr]   Downloaded pistoncore-window v0.37.0
[INFO] [stderr]   Downloaded syn v0.15.32
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.54.0
[INFO] [stderr]   Downloaded piston v0.42.0
[INFO] [stderr]   Downloaded pistoncore-input v0.24.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.59.0
[INFO] [stderr]   Downloaded piston-viewport v0.5.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.30.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86dd66174dc9aaef385f8c729818382763f6957cf21515006c9a3dbd75e01b2b
[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" "86dd66174dc9aaef385f8c729818382763f6957cf21515006c9a3dbd75e01b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86dd66174dc9aaef385f8c729818382763f6957cf21515006c9a3dbd75e01b2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86dd66174dc9aaef385f8c729818382763f6957cf21515006c9a3dbd75e01b2b", kill_on_drop: false }`
[INFO] [stdout] 86dd66174dc9aaef385f8c729818382763f6957cf21515006c9a3dbd75e01b2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1bff57b8b4cabad409284790fbf45e35778e0feb1054d17ecac4e37f72d779f
[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" "f1bff57b8b4cabad409284790fbf45e35778e0feb1054d17ecac4e37f72d779f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking piston-viewport v0.5.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking png v0.14.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.30.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.1
[INFO] [stderr]     Checking pistoncore-input v0.24.0
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.59.0
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]     Checking pistoncore-window v0.37.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.42.0
[INFO] [stderr]     Checking piston v0.42.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.54.0
[INFO] [stderr]     Checking rusty_chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/chip8/mod.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |         while let Some(e) = self.display.events.next(&mut self.display.window) {
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `display_memory`
[INFO] [stdout]   --> src/chip8/display.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn update_display(&self, display_memory: Vec<u8>) {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_display_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/chip8/mod.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |         while let Some(e) = self.display.events.next(&mut self.display.window) {
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `display_memory`
[INFO] [stdout]   --> src/chip8/display.rs:21:34
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn update_display(&self, display_memory: Vec<u8>) {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_display_memory`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `Command { std: "docker" "inspect" "f1bff57b8b4cabad409284790fbf45e35778e0feb1054d17ecac4e37f72d779f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1bff57b8b4cabad409284790fbf45e35778e0feb1054d17ecac4e37f72d779f", kill_on_drop: false }`
[INFO] [stdout] f1bff57b8b4cabad409284790fbf45e35778e0feb1054d17ecac4e37f72d779f