[INFO] cloning repository https://github.com/JGM01/chip_8_emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JGM01/chip_8_emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJGM01%2Fchip_8_emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJGM01%2Fchip_8_emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c5974d6362e171d8baa1810686dd30e71c6f342
[INFO] building JGM01/chip_8_emulator against try#9a3ef2cd3ecaae3c6ef59768612837d797602a6d for pr-137044-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJGM01%2Fchip_8_emulator" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JGM01/chip_8_emulator on toolchain 9a3ef2cd3ecaae3c6ef59768612837d797602a6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JGM01/chip_8_emulator
[INFO] finished tweaking git repo https://github.com/JGM01/chip_8_emulator
[INFO] tweaked toml for git repo https://github.com/JGM01/chip_8_emulator written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/JGM01/chip_8_emulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14bac7528ae6a6188b5fec660fb159e32de5fe8228e0fdfadf6fa4f466142111
[INFO] running `Command { std: "docker" "start" "-a" "14bac7528ae6a6188b5fec660fb159e32de5fe8228e0fdfadf6fa4f466142111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14bac7528ae6a6188b5fec660fb159e32de5fe8228e0fdfadf6fa4f466142111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14bac7528ae6a6188b5fec660fb159e32de5fe8228e0fdfadf6fa4f466142111", kill_on_drop: false }`
[INFO] [stdout] 14bac7528ae6a6188b5fec660fb159e32de5fe8228e0fdfadf6fa4f466142111
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c8fbc0eecd851aa261f561b151c52bf037eeb8c6c5fc38d6928105efe066998
[INFO] running `Command { std: "docker" "start" "-a" "9c8fbc0eecd851aa261f561b151c52bf037eeb8c6c5fc38d6928105efe066998", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling clang-sys v1.3.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling bindgen v0.56.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling raw-window-handle v0.4.2
[INFO] [stderr]    Compiling minifb v0.20.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling wayland-commons v0.28.6
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling raw-window-handle v0.3.4
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling wayland-cursor v0.28.6
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.5
[INFO] [stderr]    Compiling xkb v0.2.1
[INFO] [stderr]    Compiling chip_8_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut last_display_time = Instant::now();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rng` is never read
[INFO] [stdout]   --> src/cpu.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct CPU {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     rng: rand::rngs::ThreadRng,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     file.read_to_end(&mut data);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let _ = file.read_to_end(&mut data);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `WIDTH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let WIDTH = 640;
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `HEIGHT` should have a snake case name
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let HEIGHT = 320;
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ROM` should have a snake case name
[INFO] [stdout]   --> src/chip8.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn load_rom(&mut self, ROM: &Vec<u8>) {
[INFO] [stdout]    |                                ^^^ help: convert the identifier to snake case: `rom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9c8fbc0eecd851aa261f561b151c52bf037eeb8c6c5fc38d6928105efe066998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c8fbc0eecd851aa261f561b151c52bf037eeb8c6c5fc38d6928105efe066998", kill_on_drop: false }`
[INFO] [stdout] 9c8fbc0eecd851aa261f561b151c52bf037eeb8c6c5fc38d6928105efe066998
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b918ad016335c0875eecab2bc00f580f1a7a4e52778e606c0a8e6b9647e7d8a8
[INFO] running `Command { std: "docker" "start" "-a" "b918ad016335c0875eecab2bc00f580f1a7a4e52778e606c0a8e6b9647e7d8a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip_8_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let mut last_display_time = Instant::now();
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rng` is never read
[INFO] [stdout]   --> src/cpu.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct CPU {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     rng: rand::rngs::ThreadRng,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     file.read_to_end(&mut data);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |     let _ = file.read_to_end(&mut data);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `WIDTH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let WIDTH = 640;
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `HEIGHT` should have a snake case name
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let HEIGHT = 320;
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ROM` should have a snake case name
[INFO] [stdout]   --> src/chip8.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn load_rom(&mut self, ROM: &Vec<u8>) {
[INFO] [stdout]    |                                ^^^ help: convert the identifier to snake case: `rom`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "b918ad016335c0875eecab2bc00f580f1a7a4e52778e606c0a8e6b9647e7d8a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b918ad016335c0875eecab2bc00f580f1a7a4e52778e606c0a8e6b9647e7d8a8", kill_on_drop: false }`
[INFO] [stdout] b918ad016335c0875eecab2bc00f580f1a7a4e52778e606c0a8e6b9647e7d8a8