[INFO] cloning repository https://github.com/AmaranthineCodices/chip8-int
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AmaranthineCodices/chip8-int" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmaranthineCodices%2Fchip8-int", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmaranthineCodices%2Fchip8-int'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aeac2b88db2aeba639bae8237e062e5ce22d04d7
[INFO] checking AmaranthineCodices/chip8-int against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmaranthineCodices%2Fchip8-int" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AmaranthineCodices/chip8-int
[INFO] finished tweaking git repo https://github.com/AmaranthineCodices/chip8-int
[INFO] tweaked toml for git repo https://github.com/AmaranthineCodices/chip8-int written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AmaranthineCodices/chip8-int on toolchain f21fbac535ab2c3bc50db20547f4d48477357103
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AmaranthineCodices/chip8-int 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" "+f21fbac535ab2c3bc50db20547f4d48477357103" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "38f2407800882754ca7e4c38a7bbc4c10c73e0ec11fc53f2076da13d02b00e3c", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 694491681b41284eddcc967b83e36dcd2381b17114b8993d4003dc61dff1e626
[INFO] running `Command { std: "docker" "start" "-a" "694491681b41284eddcc967b83e36dcd2381b17114b8993d4003dc61dff1e626", kill_on_drop: false }`
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[INFO] [stderr]     Checking chip8-int v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MEM_SIZE` is never used
[INFO] [stdout]  --> src/chip8.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const MEM_SIZE: usize = 0x1000;
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GFX_SIZE_X` is never used
[INFO] [stdout]  --> src/chip8.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | const GFX_SIZE_X: usize = 64;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GFX_SIZE_Y` is never used
[INFO] [stdout]  --> src/chip8.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const GFX_SIZE_Y: usize = 32;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Opcode` is never used
[INFO] [stdout]  --> src/chip8.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Opcode {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_opcode` is never used
[INFO] [stdout]   --> src/chip8.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn decode_opcode(opcode: u16) -> Option<Opcode> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Chip8` is never constructed
[INFO] [stdout]    --> src/chip8.rs:291:12
[INFO] [stdout]     |
[INFO] [stdout] 291 | pub struct Chip8 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `execute_opcode`, `process_next_opcode`, and `step` are never used
[INFO] [stdout]    --> src/chip8.rs:307:12
[INFO] [stdout]     |
[INFO] [stdout] 306 | impl Chip8 {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 307 |     pub fn new() -> Chip8 {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 322 |     fn execute_opcode(&mut self, opcode: Opcode) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 479 |     fn process_next_opcode(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 505 |     pub fn step(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `gfx_memory`, `stack`, `stack_pointer`, and `keys` are never read
[INFO] [stdout]    --> src/chip8.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 291 | pub struct Chip8 {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 298 |     pub gfx_memory: [bool; GFX_SIZE_X * GFX_SIZE_Y],
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 301 |     pub stack: [u8; 16],
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 302 |     pub stack_pointer: u8,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 303 |     pub keys: [bool; 16],
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.16s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.12.14
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "694491681b41284eddcc967b83e36dcd2381b17114b8993d4003dc61dff1e626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "694491681b41284eddcc967b83e36dcd2381b17114b8993d4003dc61dff1e626", kill_on_drop: false }`
[INFO] [stdout] 694491681b41284eddcc967b83e36dcd2381b17114b8993d4003dc61dff1e626