[INFO] cloning repository https://github.com/aybdee/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aybdee/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faybdee%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faybdee%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48378a7e7259ae8cc8af0490a6da356da24c19f2
[INFO] building aybdee/chip8 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faybdee%2Fchip8" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aybdee/chip8 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aybdee/chip8
[INFO] finished tweaking git repo https://github.com/aybdee/chip8
[INFO] tweaked toml for git repo https://github.com/aybdee/chip8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aybdee/chip8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfc46c405294d3ad087ccfd2f2e711cd637c00a5e6a6076b77aef1682329b98b
[INFO] running `Command { std: "docker" "start" "-a" "bfc46c405294d3ad087ccfd2f2e711cd637c00a5e6a6076b77aef1682329b98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfc46c405294d3ad087ccfd2f2e711cd637c00a5e6a6076b77aef1682329b98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc46c405294d3ad087ccfd2f2e711cd637c00a5e6a6076b77aef1682329b98b", kill_on_drop: false }`
[INFO] [stdout] bfc46c405294d3ad087ccfd2f2e711cd637c00a5e6a6076b77aef1682329b98b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22e7b216aa6505b4bc7347b305980da32030ccfafadb7f6339393244219fba14
[INFO] running `Command { std: "docker" "start" "-a" "22e7b216aa6505b4bc7347b305980da32030ccfafadb7f6339393244219fba14", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling sdl2 v0.37.0
[INFO] [stderr]    Compiling sdl2-sys v0.37.0
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2::render::WindowCanvas`
[INFO] [stdout]  --> src/comp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sdl2::render::WindowCanvas;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::str_to_u16`
[INFO] [stdout]  --> src/comp.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::utils::str_to_u16;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `str_to_u16` and `str_to_u8`
[INFO] [stdout]  --> src/opcode.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::utils::{str_to_u16, str_to_u8};
[INFO] [stdout]   |                    ^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]   --> src/opcode.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 |             8 => match (instruction & 0x000F) {
[INFO] [stdout]    |                        ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 73 -             8 => match (instruction & 0x000F) {
[INFO] [stdout] 73 +             8 => match instruction & 0x000F {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `pixels::Color` and `rect::Rect`
[INFO] [stdout]  --> src/main.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2::{event::Event, keyboard::Keycode, pixels::Color, rect::Rect};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/comp.rs:230:21
[INFO] [stdout]     |
[INFO] [stdout] 230 |                 let v = format!("{:03}", value);
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/comp.rs:295:30
[INFO] [stdout]     |
[INFO] [stdout] 295 |             Opcode::SHRxy(x, y) => {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/comp.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Display {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 11 |     pixels: Vec<Vec<bool>>,
[INFO] [stdout] 12 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set`, `unset`, and `toggle` are never used
[INFO] [stdout]   --> src/comp.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Display {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 17 |     pub fn set(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn unset(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn toggle(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `font_start` is never read
[INFO] [stdout]   --> src/comp.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct Memory {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     font_start: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_rom` is never used
[INFO] [stdout]    --> src/comp.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl Memory {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn get_rom(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `st` and `stack` are never read
[INFO] [stdout]    --> src/comp.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct Cpu {
[INFO] [stdout]     |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 178 |     st: u8,     //sound timer
[INFO] [stdout]     |     ^^
[INFO] [stdout] 179 |     stack: Vec<u16>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cpu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_to_u8` is never used
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn str_to_u8(string: &str) -> u8 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_to_u16` is never used
[INFO] [stdout]  --> src/utils.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn str_to_u16(string: &str) -> u16 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "22e7b216aa6505b4bc7347b305980da32030ccfafadb7f6339393244219fba14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e7b216aa6505b4bc7347b305980da32030ccfafadb7f6339393244219fba14", kill_on_drop: false }`
[INFO] [stdout] 22e7b216aa6505b4bc7347b305980da32030ccfafadb7f6339393244219fba14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f6afd9bbceb47918ebc29c15fe9de69c6e6d32590c0956d2b27f890b3f03c13
[INFO] running `Command { std: "docker" "start" "-a" "8f6afd9bbceb47918ebc29c15fe9de69c6e6d32590c0956d2b27f890b3f03c13", kill_on_drop: false }`
[INFO] [stderr]    Compiling chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2::render::WindowCanvas`
[INFO] [stdout]  --> src/comp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sdl2::render::WindowCanvas;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::str_to_u16`
[INFO] [stdout]  --> src/comp.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::utils::str_to_u16;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `str_to_u16` and `str_to_u8`
[INFO] [stdout]  --> src/opcode.rs:1:20
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::utils::{str_to_u16, str_to_u8};
[INFO] [stdout]   |                    ^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]   --> src/opcode.rs:73:24
[INFO] [stdout]    |
[INFO] [stdout] 73 |             8 => match (instruction & 0x000F) {
[INFO] [stdout]    |                        ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 73 -             8 => match (instruction & 0x000F) {
[INFO] [stdout] 73 +             8 => match instruction & 0x000F {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `pixels::Color` and `rect::Rect`
[INFO] [stdout]  --> src/main.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | use sdl2::{event::Event, keyboard::Keycode, pixels::Color, rect::Rect};
[INFO] [stdout]   |                                             ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/comp.rs:230:21
[INFO] [stdout]     |
[INFO] [stdout] 230 |                 let v = format!("{:03}", value);
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/comp.rs:295:30
[INFO] [stdout]     |
[INFO] [stdout] 295 |             Opcode::SHRxy(x, y) => {
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/comp.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Display {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 11 |     pixels: Vec<Vec<bool>>,
[INFO] [stdout] 12 |     width: usize,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 13 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set`, `unset`, and `toggle` are never used
[INFO] [stdout]   --> src/comp.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Display {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 17 |     pub fn set(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn unset(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn toggle(&mut self, x: usize, y: usize) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `font_start` is never read
[INFO] [stdout]   --> src/comp.rs:93:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub struct Memory {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 93 |     font_start: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_rom` is never used
[INFO] [stdout]    --> src/comp.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl Memory {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 155 |     pub fn get_rom(&self) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `st` and `stack` are never read
[INFO] [stdout]    --> src/comp.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 173 | pub struct Cpu {
[INFO] [stdout]     |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 178 |     st: u8,     //sound timer
[INFO] [stdout]     |     ^^
[INFO] [stdout] 179 |     stack: Vec<u16>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Cpu` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_to_u8` is never used
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn str_to_u8(string: &str) -> u8 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_to_u16` is never used
[INFO] [stdout]  --> src/utils.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn str_to_u16(string: &str) -> u16 {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "8f6afd9bbceb47918ebc29c15fe9de69c6e6d32590c0956d2b27f890b3f03c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6afd9bbceb47918ebc29c15fe9de69c6e6d32590c0956d2b27f890b3f03c13", kill_on_drop: false }`
[INFO] [stdout] 8f6afd9bbceb47918ebc29c15fe9de69c6e6d32590c0956d2b27f890b3f03c13