[INFO] cloning repository https://github.com/carcharo/Chip8Emulator-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carcharo/Chip8Emulator-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarcharo%2FChip8Emulator-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarcharo%2FChip8Emulator-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 417572ec4456f958ce4a378e0c0657a11d48fa13
[INFO] checking carcharo/Chip8Emulator-Rust against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarcharo%2FChip8Emulator-Rust" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carcharo/Chip8Emulator-Rust on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/carcharo/Chip8Emulator-Rust
[INFO] finished tweaking git repo https://github.com/carcharo/Chip8Emulator-Rust
[INFO] tweaked toml for git repo https://github.com/carcharo/Chip8Emulator-Rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/carcharo/Chip8Emulator-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5bed1e78acc9dbdd3e5f4a2224671839c610bb49fab30e262ac1e30abe2ce513
[INFO] running `Command { std: "docker" "start" "-a" "5bed1e78acc9dbdd3e5f4a2224671839c610bb49fab30e262ac1e30abe2ce513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bed1e78acc9dbdd3e5f4a2224671839c610bb49fab30e262ac1e30abe2ce513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bed1e78acc9dbdd3e5f4a2224671839c610bb49fab30e262ac1e30abe2ce513", kill_on_drop: false }`
[INFO] [stdout] 5bed1e78acc9dbdd3e5f4a2224671839c610bb49fab30e262ac1e30abe2ce513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 010795580b57fd05a5826060aa5b15a4d748ab1046d6ab508e6adfff59f73400
[INFO] running `Command { std: "docker" "start" "-a" "010795580b57fd05a5826060aa5b15a4d748ab1046d6ab508e6adfff59f73400", kill_on_drop: false }`
[INFO] [stderr]     Checking chip8_emulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/memory.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/memory.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/memory.rs:46:33
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/memory.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mem`
[INFO] [stdout]   --> src/memory.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     mem: [u8; 4096],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/memory.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/memory.rs:42:34
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                  ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/memory.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn write_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `address`
[INFO] [stdout]   --> src/memory.rs:46:33
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/memory.rs:46:47
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mem`
[INFO] [stdout]   --> src/memory.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     mem: [u8; 4096],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_byte`
[INFO] [stdout]   --> src/memory.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn read_byte(&mut self, address: u16, value: u8) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "010795580b57fd05a5826060aa5b15a4d748ab1046d6ab508e6adfff59f73400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010795580b57fd05a5826060aa5b15a4d748ab1046d6ab508e6adfff59f73400", kill_on_drop: false }`
[INFO] [stdout] 010795580b57fd05a5826060aa5b15a4d748ab1046d6ab508e6adfff59f73400