[INFO] cloning repository https://github.com/Odebe/rusty-chip-8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Odebe/rusty-chip-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOdebe%2Frusty-chip-8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOdebe%2Frusty-chip-8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c02b94a4b7c90bcba7975988930d66effe6c11a8
[INFO] checking Odebe/rusty-chip-8 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOdebe%2Frusty-chip-8" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Odebe/rusty-chip-8
[INFO] finished tweaking git repo https://github.com/Odebe/rusty-chip-8
[INFO] tweaked toml for git repo https://github.com/Odebe/rusty-chip-8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Odebe/rusty-chip-8 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Odebe/rusty-chip-8 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c106aec92808ed2c18a760bbe04dce4c489f1ef91aa8af70c25b25e0aa23cf4
[INFO] running `Command { std: "docker" "start" "-a" "5c106aec92808ed2c18a760bbe04dce4c489f1ef91aa8af70c25b25e0aa23cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c106aec92808ed2c18a760bbe04dce4c489f1ef91aa8af70c25b25e0aa23cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c106aec92808ed2c18a760bbe04dce4c489f1ef91aa8af70c25b25e0aa23cf4", kill_on_drop: false }`
[INFO] [stdout] 5c106aec92808ed2c18a760bbe04dce4c489f1ef91aa8af70c25b25e0aa23cf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9d4ea7bebb8b5ff8dc380826da6c28ddb284892d35bd761f929d7442a8e8c28
[INFO] running `Command { std: "docker" "start" "-a" "f9d4ea7bebb8b5ff8dc380826da6c28ddb284892d35bd761f929d7442a8e8c28", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling sdl2 v0.34.3
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling sdl2-sys v0.34.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking rusty-chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `delay_timer` is never read
[INFO] [stdout]    --> src/chip8/mod.rs:399:5
[INFO] [stdout]     |
[INFO] [stdout] 390 | pub struct Emulator {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 399 |     delay_timer: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `TIMER_HZ` is never used
[INFO] [stdout]    --> src/chip8/mod.rs:404:11
[INFO] [stdout]     |
[INFO] [stdout] 402 | impl Emulator {
[INFO] [stdout]     | ------------- associated constant in this implementation
[INFO] [stdout] 403 |     const ROM_START: u16 = 512;
[INFO] [stdout] 404 |     const TIMER_HZ: u32 = 10;
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/chip8/mod.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 self.canvas.fill_rect(rect);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let _ = self.canvas.fill_rect(rect);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/chip8/mod.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |         write!(fmt, "[");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let _ = write!(fmt, "[");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/chip8/mod.rs:299:34
[INFO] [stdout]     |
[INFO] [stdout] 299 |         for e in self.0.iter() { write!(fmt, "{:x}, ", *e); }
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 299 |         for e in self.0.iter() { let _ = write!(fmt, "{:x}, ", *e); }
[INFO] [stdout]     |                                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `delay_timer` is never read
[INFO] [stdout]    --> src/chip8/mod.rs:399:5
[INFO] [stdout]     |
[INFO] [stdout] 390 | pub struct Emulator {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 399 |     delay_timer: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `TIMER_HZ` is never used
[INFO] [stdout]    --> src/chip8/mod.rs:404:11
[INFO] [stdout]     |
[INFO] [stdout] 402 | impl Emulator {
[INFO] [stdout]     | ------------- associated constant in this implementation
[INFO] [stdout] 403 |     const ROM_START: u16 = 512;
[INFO] [stdout] 404 |     const TIMER_HZ: u32 = 10;
[INFO] [stdout]     |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/chip8/mod.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 self.canvas.fill_rect(rect);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let _ = self.canvas.fill_rect(rect);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/chip8/mod.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |         write!(fmt, "[");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 298 |         let _ = write!(fmt, "[");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/chip8/mod.rs:299:34
[INFO] [stdout]     |
[INFO] [stdout] 299 |         for e in self.0.iter() { write!(fmt, "{:x}, ", *e); }
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 299 |         for e in self.0.iter() { let _ = write!(fmt, "{:x}, ", *e); }
[INFO] [stdout]     |                                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.97s
[INFO] running `Command { std: "docker" "inspect" "f9d4ea7bebb8b5ff8dc380826da6c28ddb284892d35bd761f929d7442a8e8c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d4ea7bebb8b5ff8dc380826da6c28ddb284892d35bd761f929d7442a8e8c28", kill_on_drop: false }`
[INFO] [stdout] f9d4ea7bebb8b5ff8dc380826da6c28ddb284892d35bd761f929d7442a8e8c28