[INFO] cloning repository https://github.com/rpg2014/CHIP-8
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rpg2014/CHIP-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frpg2014%2FCHIP-8"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frpg2014%2FCHIP-8'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2f7db781dba1ff4452085c27c4218858e0b68f9e
[INFO] checking rpg2014/CHIP-8 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frpg2014%2FCHIP-8" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rpg2014/CHIP-8 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/rpg2014/CHIP-8
[INFO] finished tweaking git repo https://github.com/rpg2014/CHIP-8
[INFO] tweaked toml for git repo https://github.com/rpg2014/CHIP-8 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/rpg2014/CHIP-8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 5d0bd0ee34ab57d77f17b809ddd388305e67659cc539d33e27ca843c76681889
[INFO] running `"docker" "start" "-a" "5d0bd0ee34ab57d77f17b809ddd388305e67659cc539d33e27ca843c76681889"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking string-error v0.1.0
[INFO] [stderr]     Checking crossterm_utils v0.2.4
[INFO] [stderr]     Checking crossterm_screen v0.2.5
[INFO] [stderr]     Checking crossterm_cursor v0.2.6
[INFO] [stderr]     Checking crossterm_style v0.4.1
[INFO] [stderr]     Checking crossterm_input v0.3.9
[INFO] [stderr]     Checking crossterm_terminal v0.2.6
[INFO] [stderr]     Checking crossterm v0.10.2
[INFO] [stderr]     Checking CHIP-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `ClearType`
[INFO] [stderr]  --> src/main.rs:6:75
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crossterm::{terminal, Terminal, RawScreen, Crossterm, TerminalCursor, ClearType, AsyncReader, InputEvent, KeyEvent};
[INFO] [stderr]   |                                                                           ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Bytes`
[INFO] [stderr]  --> src/chip.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Bytes;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string_error::static_err`
[INFO] [stderr]  --> src/chip.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use string_error::static_err;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `Chip_8` should have an upper camel case name
[INFO] [stderr]   --> src/chip.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Chip_8 {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to upper camel case: `Chip8`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ClearType`
[INFO] [stderr]  --> src/main.rs:6:75
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crossterm::{terminal, Terminal, RawScreen, Crossterm, TerminalCursor, ClearType, AsyncReader, InputEvent, KeyEvent};
[INFO] [stderr]   |                                                                           ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::Bytes`
[INFO] [stderr]  --> src/chip.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Bytes;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `string_error::static_err`
[INFO] [stderr]  --> src/chip.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use string_error::static_err;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type `Chip_8` should have an upper camel case name
[INFO] [stderr]   --> src/chip.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Chip_8 {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to upper camel case: `Chip8`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/chip.rs:181:9
[INFO] [stderr]     |
[INFO] [stderr] 181 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | /     loop {
[INFO] [stderr] 28 | |         // this must take ~17 ms or whatever is 60 fps.  
[INFO] [stderr] 29 | |         chip.run_cycle()?;
[INFO] [stderr] 30 | |         draw_graphics(&chip.get_graphics_buffer(), &terminal)?;
[INFO] [stderr] ...  |
[INFO] [stderr] 33 | |         };
[INFO] [stderr] 34 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 35 | 
[INFO] [stderr] 36 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 27 | /     loop {
[INFO] [stderr] 28 | |         // this must take ~17 ms or whatever is 60 fps.  
[INFO] [stderr] 29 | |         chip.run_cycle()?;
[INFO] [stderr] 30 | |         draw_graphics(&chip.get_graphics_buffer(), &terminal)?;
[INFO] [stderr] ...  |
[INFO] [stderr] 33 | |         };
[INFO] [stderr] 34 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 35 | 
[INFO] [stderr] 36 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `raw`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let raw = RawScreen::into_raw_mode();
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `terminal`
[INFO] [stderr]   --> src/main.rs:41:49
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn draw_graphics(graphics_buffer: &[u8; 64*32], terminal: &Terminal) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |                                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_terminal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/keyboard.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn is_valid_key(c: char) -> bool {
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_key_press`
[INFO] [stderr]   --> src/keyboard.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn add_key_press(&mut self, key: char){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `CHIP_8` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `chip_8`
[INFO] [stderr] 
[INFO] [stderr] warning: function `doBeep` should have a snake case name
[INFO] [stderr]    --> src/chip.rs:191:4
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn doBeep() {
[INFO] [stderr]     |    ^^^^^^ help: convert the identifier to snake case: `do_beep`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `raw`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let raw = RawScreen::into_raw_mode();
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `terminal`
[INFO] [stderr]   --> src/main.rs:41:49
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn draw_graphics(graphics_buffer: &[u8; 64*32], terminal: &Terminal) -> Result<(), Box<dyn Error>> {
[INFO] [stderr]    |                                                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_terminal`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/keyboard.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn is_valid_key(c: char) -> bool {
[INFO] [stderr]    |                         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_key_press`
[INFO] [stderr]   --> src/keyboard.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn add_key_press(&mut self, key: char){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `CHIP_8` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `chip_8`
[INFO] [stderr] 
[INFO] [stderr] warning: function `doBeep` should have a snake case name
[INFO] [stderr]    --> src/chip.rs:191:4
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn doBeep() {
[INFO] [stderr]     |    ^^^^^^ help: convert the identifier to snake case: `do_beep`
[INFO] [stderr] 
[INFO] [stderr] warning: function `execute_instruction_should_catchOpCode` should have a snake case name
[INFO] [stderr]    --> src/chip.rs:184:8
[INFO] [stderr]     |
[INFO] [stderr] 184 |     fn execute_instruction_should_catchOpCode() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `execute_instruction_should_catch_op_code`
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.40s
[INFO] running `"docker" "inspect" "5d0bd0ee34ab57d77f17b809ddd388305e67659cc539d33e27ca843c76681889"`
[INFO] running `"docker" "rm" "-f" "5d0bd0ee34ab57d77f17b809ddd388305e67659cc539d33e27ca843c76681889"`
[INFO] [stdout] 5d0bd0ee34ab57d77f17b809ddd388305e67659cc539d33e27ca843c76681889