[INFO] cloning repository https://github.com/MichaelGoodale/Rusted-Chip-8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MichaelGoodale/Rusted-Chip-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelGoodale%2FRusted-Chip-8"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelGoodale%2FRusted-Chip-8'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 584696b49a791cafeb11aa6c5de1c2ce36cd2671
[INFO] checking MichaelGoodale/Rusted-Chip-8 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelGoodale%2FRusted-Chip-8" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MichaelGoodale/Rusted-Chip-8 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MichaelGoodale/Rusted-Chip-8
[INFO] finished tweaking git repo https://github.com/MichaelGoodale/Rusted-Chip-8
[INFO] tweaked toml for git repo https://github.com/MichaelGoodale/Rusted-Chip-8 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/MichaelGoodale/Rusted-Chip-8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07a0e58f6882c1fcc35b25aec1000cae68674319af65589bd3da4c436abade72
[INFO] running `"docker" "start" "-a" "07a0e58f6882c1fcc35b25aec1000cae68674319af65589bd3da4c436abade72"`
[INFO] [stderr]     Checking chip8_emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::env::current_dir`
[INFO] [stderr]  --> src/cpu.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env::current_dir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |         if(c.do_cycle()) {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::env::current_dir`
[INFO] [stderr]  --> src/cpu.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::env::current_dir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/main.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |         if(c.do_cycle()) {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:117:6
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let mut events = ctx.event_pump().unwrap();
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cpu.rs:54:7
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut file = match File::open(&path) {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `do_opcode`
[INFO] [stderr]    --> src/cpu.rs:325:2
[INFO] [stderr]     |
[INFO] [stderr] 325 |     pub fn do_opcode(&mut self, opcode: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:90:7
[INFO] [stderr]    |
[INFO] [stderr] 90 |                         r.draw_point(Point::new(i as i32, j as i32));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:113:2
[INFO] [stderr]     |
[INFO] [stderr] 113 |     renderer.set_scale(WINDOW_SCALE as f32, WINDOW_SCALE as f32);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Vx` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:225:10
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stderr]     |                      ^^ help: convert the identifier to snake case: `vx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Vy` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:225:14
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stderr]     |                          ^^ help: convert the identifier to snake case: `vy`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:117:6
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let mut events = ctx.event_pump().unwrap();
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cpu.rs:54:7
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut file = match File::open(&path) {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `do_opcode`
[INFO] [stderr]    --> src/cpu.rs:325:2
[INFO] [stderr]     |
[INFO] [stderr] 325 |     pub fn do_opcode(&mut self, opcode: u16) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:90:7
[INFO] [stderr]    |
[INFO] [stderr] 90 |                         r.draw_point(Point::new(i as i32, j as i32));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:113:2
[INFO] [stderr]     |
[INFO] [stderr] 113 |     renderer.set_scale(WINDOW_SCALE as f32, WINDOW_SCALE as f32);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Vx` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:225:10
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stderr]     |                      ^^ help: convert the identifier to snake case: `vx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Vy` should have a snake case name
[INFO] [stderr]    --> src/cpu.rs:225:14
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 let (Vx, Vy) = (self.v[x as usize] as usize, self.v[y as usize] as usize);
[INFO] [stderr]     |                          ^^ help: convert the identifier to snake case: `vy`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
[INFO] running `"docker" "inspect" "07a0e58f6882c1fcc35b25aec1000cae68674319af65589bd3da4c436abade72"`
[INFO] running `"docker" "rm" "-f" "07a0e58f6882c1fcc35b25aec1000cae68674319af65589bd3da4c436abade72"`
[INFO] [stdout] 07a0e58f6882c1fcc35b25aec1000cae68674319af65589bd3da4c436abade72