[INFO] cloning repository https://github.com/sam-bowman/rust-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/sam-bowman/rust-chip-8-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-bowman%2Frust-chip-8-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-bowman%2Frust-chip-8-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f64893460756dba2e113460671fbb3700efb8b8f
[INFO] checking sam-bowman/rust-chip-8-emulator against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-bowman%2Frust-chip-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] started tweaking git repo https://github.com/sam-bowman/rust-chip-8-emulator
[INFO] finished tweaking git repo https://github.com/sam-bowman/rust-chip-8-emulator
[INFO] tweaked toml for git repo https://github.com/sam-bowman/rust-chip-8-emulator written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sam-bowman/rust-chip-8-emulator on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sam-bowman/rust-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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd5bc9831f4c983880c74910f14724328226b2eb9e8001f9aecb026bcb81e981
[INFO] running `Command { std: "docker" "start" "-a" "dd5bc9831f4c983880c74910f14724328226b2eb9e8001f9aecb026bcb81e981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd5bc9831f4c983880c74910f14724328226b2eb9e8001f9aecb026bcb81e981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5bc9831f4c983880c74910f14724328226b2eb9e8001f9aecb026bcb81e981", kill_on_drop: false }`
[INFO] [stdout] dd5bc9831f4c983880c74910f14724328226b2eb9e8001f9aecb026bcb81e981
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9e9eaae29eec101a9b4d52951ff65323761dd857369723ec50b26d59c139117
[INFO] running `Command { std: "docker" "start" "-a" "f9e9eaae29eec101a9b4d52951ff65323761dd857369723ec50b26d59c139117", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2024 which implies `resolver = "3"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2024 resolver, specify `workspace.resolver = "3"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling sdl2 v0.33.0
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling sdl2-sys v0.33.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking backend v0.1.0 (/opt/rustwide/workdir/backend)
[INFO] [stdout] warning: unused import: `rand::rngs::SmallRng`
[INFO] [stdout]  --> backend/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::rngs::SmallRng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]  --> backend/src/lib.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::{RngCore, SeedableRng};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `backend` (lib) due to 1 previous error; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `Chip8` is never constructed
[INFO] [stdout]   --> backend/src/lib.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Chip8<R: RngCore> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SPRITE_CHARS` is never used
[INFO] [stdout]  --> backend/src/lib.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const SPRITE_CHARS: [[u8; 5]; 0x10] = [
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SPRITE_CHARS_ADDR` is never used
[INFO] [stdout]   --> backend/src/lib.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const SPRITE_CHARS_ADDR: u16 = 0x0000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ROM_ADDR` is never used
[INFO] [stdout]   --> backend/src/lib.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | const ROM_ADDR: usize = 0x200;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_TIME` is never used
[INFO] [stdout]   --> backend/src/lib.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | const FRAME_TIME: isize = 16666; // In microseconds
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> backend/src/lib.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl Regs {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 52 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> backend/src/lib.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Chip8<R: RngCore> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 58 |     mem: [u8; MEM_SIZE],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 59 |     v: Regs, // Register Set
[INFO] [stdout]    |     ^
[INFO] [stdout] 60 |     i: u16,  // Index Register
[INFO] [stdout]    |     ^
[INFO] [stdout] 61 |     pc: u16, // Program Counter
[INFO] [stdout]    |     ^^
[INFO] [stdout] 62 |     stack: [u16; 0x10],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 63 |     sp: u8,                                     // Stack Pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 64 |     dt: u8,                                     // Delay Timer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 65 |     st: u8,                                     // Sound Timer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 66 |     keypad: u16,                                // Keypad
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 67 |     fb: [u8; SCREEN_WIDTH * SCREEN_HEIGTH / 8], // Framebuffer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 68 |     tone: bool,                                 // Tone output enable
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 69 |     time: isize,                                // Overtime in microseconds
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 70 |     rng: R,                                     // Instance of a random number generator
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_cls` is never used
[INFO] [stdout]   --> backend/src/lib.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl<R: RngCore> Chip8<R> {
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |     fn op_cls(&mut self) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::rngs::SmallRng`
[INFO] [stdout]  --> backend/src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::rngs::SmallRng;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]  --> backend/src/lib.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::{RngCore, SeedableRng};
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Chip8` is never constructed
[INFO] [stdout]   --> backend/src/lib.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Chip8<R: RngCore> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SPRITE_CHARS` is never used
[INFO] [stdout]  --> backend/src/lib.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const SPRITE_CHARS: [[u8; 5]; 0x10] = [
[INFO] [stdout]   |       ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SPRITE_CHARS_ADDR` is never used
[INFO] [stdout]   --> backend/src/lib.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const SPRITE_CHARS_ADDR: u16 = 0x0000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ROM_ADDR` is never used
[INFO] [stdout]   --> backend/src/lib.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | const ROM_ADDR: usize = 0x200;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FRAME_TIME` is never used
[INFO] [stdout]   --> backend/src/lib.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | const FRAME_TIME: isize = 16666; // In microseconds
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> backend/src/lib.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl Regs {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 52 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> backend/src/lib.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Chip8<R: RngCore> {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 58 |     mem: [u8; MEM_SIZE],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 59 |     v: Regs, // Register Set
[INFO] [stdout]    |     ^
[INFO] [stdout] 60 |     i: u16,  // Index Register
[INFO] [stdout]    |     ^
[INFO] [stdout] 61 |     pc: u16, // Program Counter
[INFO] [stdout]    |     ^^
[INFO] [stdout] 62 |     stack: [u16; 0x10],
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 63 |     sp: u8,                                     // Stack Pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 64 |     dt: u8,                                     // Delay Timer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 65 |     st: u8,                                     // Sound Timer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 66 |     keypad: u16,                                // Keypad
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 67 |     fb: [u8; SCREEN_WIDTH * SCREEN_HEIGTH / 8], // Framebuffer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 68 |     tone: bool,                                 // Tone output enable
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 69 |     time: isize,                                // Overtime in microseconds
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 70 |     rng: R,                                     // Instance of a random number generator
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `op_cls` is never used
[INFO] [stdout]   --> backend/src/lib.rs:79:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl<R: RngCore> Chip8<R> {
[INFO] [stdout]    | ------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |     fn op_cls(&mut self) -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `backend` (lib test) due to 1 previous error; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f9e9eaae29eec101a9b4d52951ff65323761dd857369723ec50b26d59c139117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9e9eaae29eec101a9b4d52951ff65323761dd857369723ec50b26d59c139117", kill_on_drop: false }`
[INFO] [stdout] f9e9eaae29eec101a9b4d52951ff65323761dd857369723ec50b26d59c139117
