[INFO] cloning repository https://github.com/2bdkid/chip8-emulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/2bdkid/chip8-emulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2bdkid%2Fchip8-emulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2bdkid%2Fchip8-emulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d581b520575029c8636995f66f8304940505ff55
[INFO] checking 2bdkid/chip8-emulator against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2bdkid%2Fchip8-emulator" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/2bdkid/chip8-emulator 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/2bdkid/chip8-emulator
[INFO] finished tweaking git repo https://github.com/2bdkid/chip8-emulator
[INFO] tweaked toml for git repo https://github.com/2bdkid/chip8-emulator written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/2bdkid/chip8-emulator 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] fc424048bb49bcdf08dc4d9adcd5a1027e0c4f6fa7338259d68749ba549d019f
[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" "fc424048bb49bcdf08dc4d9adcd5a1027e0c4f6fa7338259d68749ba549d019f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc424048bb49bcdf08dc4d9adcd5a1027e0c4f6fa7338259d68749ba549d019f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc424048bb49bcdf08dc4d9adcd5a1027e0c4f6fa7338259d68749ba549d019f", kill_on_drop: false }`
[INFO] [stdout] fc424048bb49bcdf08dc4d9adcd5a1027e0c4f6fa7338259d68749ba549d019f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 046bbbf7f8415cdde3a91b883967afdd60069d6829f1006b3f4ee2f4475e1c67
[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" "046bbbf7f8415cdde3a91b883967afdd60069d6829f1006b3f4ee2f4475e1c67", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.29
[INFO] [stderr]     Checking rand v0.3.16
[INFO] [stderr]    Compiling ncurses v5.86.0
[INFO] [stderr]     Checking chip8_virtual_machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ncurses`
[INFO] [stdout]  --> src/system.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ncurses;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ncurses`
[INFO] [stdout]  --> src/system.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ncurses;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]   --> src/display.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn draw() {
[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: `poll`
[INFO] [stdout]    --> src/keyboard.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn poll(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `draw`
[INFO] [stdout]   --> src/display.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn draw() {
[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: `poll`
[INFO] [stdout]    --> src/keyboard.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn poll(&mut self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "046bbbf7f8415cdde3a91b883967afdd60069d6829f1006b3f4ee2f4475e1c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046bbbf7f8415cdde3a91b883967afdd60069d6829f1006b3f4ee2f4475e1c67", kill_on_drop: false }`
[INFO] [stdout] 046bbbf7f8415cdde3a91b883967afdd60069d6829f1006b3f4ee2f4475e1c67