[INFO] cloning repository https://github.com/Kaynex/chip8-emu-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kaynex/chip8-emu-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaynex%2Fchip8-emu-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaynex%2Fchip8-emu-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef9fd8333525f083107a800fe2467c15e2953ade
[INFO] checking Kaynex/chip8-emu-rust against e5e97e3ef0ee95d34bea49cdac051ed1bbac01df for pr-158759-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKaynex%2Fchip8-emu-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kaynex/chip8-emu-rust
[INFO] finished tweaking git repo https://github.com/Kaynex/chip8-emu-rust
[INFO] tweaked toml for git repo https://github.com/Kaynex/chip8-emu-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kaynex/chip8-emu-rust on toolchain e5e97e3ef0ee95d34bea49cdac051ed1bbac01df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kaynex/chip8-emu-rust 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" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "ea6654d499a3a4f1c0340e4d6adf368810fa03f02ae28b1c92706b5b2cf51310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ea6654d499a3a4f1c0340e4d6adf368810fa03f02ae28b1c92706b5b2cf51310" "/opt/rustwide/cargo-home/bin/cargo" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea6654d499a3a4f1c0340e4d6adf368810fa03f02ae28b1c92706b5b2cf51310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ea6654d499a3a4f1c0340e4d6adf368810fa03f02ae28b1c92706b5b2cf51310" "/opt/rustwide/cargo-home/bin/cargo" "+e5e97e3ef0ee95d34bea49cdac051ed1bbac01df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: variable `carry` is assigned to, but never used
[INFO] [stdout]    --> src/chip8.rs:350:21
[INFO] [stdout]     |
[INFO] [stdout] 350 |                 let carry;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_carry` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `carry` is never read
[INFO] [stdout]    --> src/chip8.rs:351:40
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 (chip8.index_register, carry) = chip8.index_register.overflowing_add(chip8[r] as u16);
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `carry` is assigned to, but never used
[INFO] [stdout]    --> src/chip8.rs:350:21
[INFO] [stdout]     |
[INFO] [stdout] 350 |                 let carry;
[INFO] [stdout]     |                     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_carry` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `carry` is never read
[INFO] [stdout]    --> src/chip8.rs:351:40
[INFO] [stdout]     |
[INFO] [stdout] 351 |                 (chip8.index_register, carry) = chip8.index_register.overflowing_add(chip8[r] as u16);
[INFO] [stdout]     |                                        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/chip8.rs:406:24
[INFO] [stdout]     |
[INFO] [stdout] 406 |     UnknownInstruction(CodedInstruction),
[INFO] [stdout]     |     ------------------ ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 406 -     UnknownInstruction(CodedInstruction),
[INFO] [stdout] 406 +     UnknownInstruction(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/chip8.rs:406:24
[INFO] [stdout]     |
[INFO] [stdout] 406 |     UnknownInstruction(CodedInstruction),
[INFO] [stdout]     |     ------------------ ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 406 -     UnknownInstruction(CodedInstruction),
[INFO] [stdout] 406 +     UnknownInstruction(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "ea6654d499a3a4f1c0340e4d6adf368810fa03f02ae28b1c92706b5b2cf51310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea6654d499a3a4f1c0340e4d6adf368810fa03f02ae28b1c92706b5b2cf51310", kill_on_drop: false }`
[INFO] [stdout] ea6654d499a3a4f1c0340e4d6adf368810fa03f02ae28b1c92706b5b2cf51310
