[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 master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarcharo%2FChip8Emulator-Rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carcharo/Chip8Emulator-Rust on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cfc44ddcc8e592d1d8daa58fd51656ebe795fc011abdfd474e0228041e8ac45
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3cfc44ddcc8e592d1d8daa58fd51656ebe795fc011abdfd474e0228041e8ac45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cfc44ddcc8e592d1d8daa58fd51656ebe795fc011abdfd474e0228041e8ac45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cfc44ddcc8e592d1d8daa58fd51656ebe795fc011abdfd474e0228041e8ac45", kill_on_drop: false }`
[INFO] [stdout] 3cfc44ddcc8e592d1d8daa58fd51656ebe795fc011abdfd474e0228041e8ac45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 056b08d03ec27ca524a3824d38be52e80a8e5f407e5d6f9b623db2f235c1c27e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "056b08d03ec27ca524a3824d38be52e80a8e5f407e5d6f9b623db2f235c1c27e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: 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: 6 warnings emitted
[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 0.26s
[INFO] running `Command { std: "docker" "inspect" "056b08d03ec27ca524a3824d38be52e80a8e5f407e5d6f9b623db2f235c1c27e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "056b08d03ec27ca524a3824d38be52e80a8e5f407e5d6f9b623db2f235c1c27e", kill_on_drop: false }`
[INFO] [stdout] 056b08d03ec27ca524a3824d38be52e80a8e5f407e5d6f9b623db2f235c1c27e