[INFO] cloning repository https://github.com/loicbacciga/chip-8-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/loicbacciga/chip-8-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floicbacciga%2Fchip-8-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floicbacciga%2Fchip-8-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1337f5992adfe5644f87be2b72d75b544ae92d2b
[INFO] checking loicbacciga/chip-8-rust against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floicbacciga%2Fchip-8-rust" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/loicbacciga/chip-8-rust on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/loicbacciga/chip-8-rust
[INFO] finished tweaking git repo https://github.com/loicbacciga/chip-8-rust
[INFO] tweaked toml for git repo https://github.com/loicbacciga/chip-8-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/loicbacciga/chip-8-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c6e5dc5a6ed7f50a769adc7060991c7eb5d745c6703cbe8ba2a9140bbf445f7
[INFO] running `Command { std: "docker" "start" "-a" "3c6e5dc5a6ed7f50a769adc7060991c7eb5d745c6703cbe8ba2a9140bbf445f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6e5dc5a6ed7f50a769adc7060991c7eb5d745c6703cbe8ba2a9140bbf445f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6e5dc5a6ed7f50a769adc7060991c7eb5d745c6703cbe8ba2a9140bbf445f7", kill_on_drop: false }`
[INFO] [stdout] 3c6e5dc5a6ed7f50a769adc7060991c7eb5d745c6703cbe8ba2a9140bbf445f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57f310722a1fdf9e175d326ec6b6217515004b597ec0277af981971ecc3419dd
[INFO] running `Command { std: "docker" "start" "-a" "57f310722a1fdf9e175d326ec6b6217515004b597ec0277af981971ecc3419dd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling sdl2 v0.34.5
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling sdl2-sys v0.34.5
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking chip-8-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/emu/console.rs:222:27
[INFO] [stdout]     |
[INFO] [stdout] 222 |             Instr::SHR(x, y) => {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/emu/console.rs:242:27
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Instr::SHL(x, y) => {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/emu/console.rs:260:24
[INFO] [stdout]     |
[INFO] [stdout] 260 |             Instr::JPV(x, nnn) => {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/emu/console.rs:222:27
[INFO] [stdout]     |
[INFO] [stdout] 222 |             Instr::SHR(x, y) => {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/emu/console.rs:242:27
[INFO] [stdout]     |
[INFO] [stdout] 242 |             Instr::SHL(x, y) => {
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/emu/console.rs:260:24
[INFO] [stdout]     |
[INFO] [stdout] 260 |             Instr::JPV(x, nnn) => {
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_memory`
[INFO] [stdout]    --> src/emu/console.rs:410:12
[INFO] [stdout]     |
[INFO] [stdout] 410 |     pub fn print_memory(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_memory`
[INFO] [stdout]    --> src/emu/console.rs:410:12
[INFO] [stdout]     |
[INFO] [stdout] 410 |     pub fn print_memory(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.36s
[INFO] running `Command { std: "docker" "inspect" "57f310722a1fdf9e175d326ec6b6217515004b597ec0277af981971ecc3419dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f310722a1fdf9e175d326ec6b6217515004b597ec0277af981971ecc3419dd", kill_on_drop: false }`
[INFO] [stdout] 57f310722a1fdf9e175d326ec6b6217515004b597ec0277af981971ecc3419dd