[INFO] cloning repository https://github.com/N0ps32/rust-chip8-emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/N0ps32/rust-chip8-emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FN0ps32%2Frust-chip8-emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FN0ps32%2Frust-chip8-emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cd4449f0a871d8ab26b8efcce1c70d81c630e5d
[INFO] checking N0ps32/rust-chip8-emu against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FN0ps32%2Frust-chip8-emu" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/N0ps32/rust-chip8-emu on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/N0ps32/rust-chip8-emu
[INFO] finished tweaking git repo https://github.com/N0ps32/rust-chip8-emu
[INFO] tweaked toml for git repo https://github.com/N0ps32/rust-chip8-emu written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/N0ps32/rust-chip8-emu already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de2cca73b16f91b36f4a1d054ec5e1ab2fdc005c8d4e82b33a03e9867f65fe83
[INFO] running `Command { std: "docker" "start" "-a" "de2cca73b16f91b36f4a1d054ec5e1ab2fdc005c8d4e82b33a03e9867f65fe83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de2cca73b16f91b36f4a1d054ec5e1ab2fdc005c8d4e82b33a03e9867f65fe83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de2cca73b16f91b36f4a1d054ec5e1ab2fdc005c8d4e82b33a03e9867f65fe83", kill_on_drop: false }`
[INFO] [stdout] de2cca73b16f91b36f4a1d054ec5e1ab2fdc005c8d4e82b33a03e9867f65fe83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d50876f894c27cc0ff0f2cda6cd23f871c0de958515026eb9b46fa519c5bb665
[INFO] running `Command { std: "docker" "start" "-a" "d50876f894c27cc0ff0f2cda6cd23f871c0de958515026eb9b46fa519c5bb665", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir/chip8)
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> chip8/src/memory.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Formatter, Error, Debug};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> chip8/src/memory.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{Display, Formatter, Error, Debug};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SPRITES`
[INFO] [stdout]   --> chip8/src/memory.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / const SPRITES: [[u8; 5]; 16] = [
[INFO] [stdout] 6  | |     [0xF0, 0x90, 0x90, 0x90, 0xF0], //0
[INFO] [stdout] 7  | |     [0x20, 0x60, 0x20, 0x20, 0x70], //1
[INFO] [stdout] 8  | |     [0xF0, 0x10, 0xF0, 0x80, 0xF0], //2
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     [0xF0, 0x80, 0xF0, 0x80, 0x80], //F
[INFO] [stdout] 22 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SPRITES`
[INFO] [stdout]   --> chip8/src/memory.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  | / const SPRITES: [[u8; 5]; 16] = [
[INFO] [stdout] 6  | |     [0xF0, 0x90, 0x90, 0x90, 0xF0], //0
[INFO] [stdout] 7  | |     [0x20, 0x60, 0x20, 0x20, 0x70], //1
[INFO] [stdout] 8  | |     [0xF0, 0x10, 0xF0, 0x80, 0xF0], //2
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | |     [0xF0, 0x80, 0xF0, 0x80, 0x80], //F
[INFO] [stdout] 22 | | ];
[INFO] [stdout]    | |__^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chip8-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     file.read_to_end(&mut buf);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     file.read_to_end(&mut buf);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `Command { std: "docker" "inspect" "d50876f894c27cc0ff0f2cda6cd23f871c0de958515026eb9b46fa519c5bb665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d50876f894c27cc0ff0f2cda6cd23f871c0de958515026eb9b46fa519c5bb665", kill_on_drop: false }`
[INFO] [stdout] d50876f894c27cc0ff0f2cda6cd23f871c0de958515026eb9b46fa519c5bb665