[INFO] cloning repository https://github.com/cadecolvin/chip8-emu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cadecolvin/chip8-emu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadecolvin%2Fchip8-emu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadecolvin%2Fchip8-emu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c1bcfb61d1ad2231286798caaca9ed67d0a1e64
[INFO] checking cadecolvin/chip8-emu against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadecolvin%2Fchip8-emu" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cadecolvin/chip8-emu
[INFO] finished tweaking git repo https://github.com/cadecolvin/chip8-emu
[INFO] tweaked toml for git repo https://github.com/cadecolvin/chip8-emu written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cadecolvin/chip8-emu on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cadecolvin/chip8-emu 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4187c285b418c8cd374f2ae5dd82cd9abc5b7c076b58d23a89eb74f1981b90d1
[INFO] running `Command { std: "docker" "start" "-a" "4187c285b418c8cd374f2ae5dd82cd9abc5b7c076b58d23a89eb74f1981b90d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4187c285b418c8cd374f2ae5dd82cd9abc5b7c076b58d23a89eb74f1981b90d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4187c285b418c8cd374f2ae5dd82cd9abc5b7c076b58d23a89eb74f1981b90d1", kill_on_drop: false }`
[INFO] [stdout] 4187c285b418c8cd374f2ae5dd82cd9abc5b7c076b58d23a89eb74f1981b90d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7259b2fb6179294d77fe22cf54a35f0c63901b7c3c47fa06cc90ae4a3732206a
[INFO] running `Command { std: "docker" "start" "-a" "7259b2fb6179294d77fe22cf54a35f0c63901b7c3c47fa06cc90ae4a3732206a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking chip8-emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chip8.rs:139:21
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 let mut sprite_idx = self.addr_register;
[INFO] [stdout]     |                     ----^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pixel_flipped` is assigned to, but never used
[INFO] [stdout]    --> src/chip8.rs:140:21
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 let mut pixel_flipped = false;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_pixel_flipped` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pixel_flipped` is never read
[INFO] [stdout]    --> src/chip8.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 | ...                   pixel_flipped = true;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chip8`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let chip8 = Chip8::new();
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chip8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/chip8.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout]  3 | pub struct Chip8 {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout]  4 |     pub stack: [u16; 16],
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]  5 |     pub stack_pointer: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]  6 |     pub program_counter: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]  7 |
[INFO] [stdout]  8 |     pub memory: [u8; 4096],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]  9 |
[INFO] [stdout] 10 |     pub registers: [u8; 16],
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 11 |     pub addr_register: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 12 |
[INFO] [stdout] 13 |     pub screen: [[bool; 64]; 32],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub delay_timer: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 16 |     pub sound_timer: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `execute_cycle`, `read_word`, and `process_opcode` are never used
[INFO] [stdout]   --> src/chip8.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Chip8 {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn execute_cycle(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn read_word(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn process_opcode(&mut self, opcode: u16) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/chip8.rs:139:21
[INFO] [stdout]     |
[INFO] [stdout] 139 |                 let mut sprite_idx = self.addr_register;
[INFO] [stdout]     |                     ----^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pixel_flipped` is assigned to, but never used
[INFO] [stdout]    --> src/chip8.rs:140:21
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 let mut pixel_flipped = false;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_pixel_flipped` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pixel_flipped` is never read
[INFO] [stdout]    --> src/chip8.rs:157:29
[INFO] [stdout]     |
[INFO] [stdout] 157 | ...                   pixel_flipped = true;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `chip8`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let chip8 = Chip8::new();
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_chip8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/chip8.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout]  3 | pub struct Chip8 {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout]  4 |     pub stack: [u16; 16],
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]  5 |     pub stack_pointer: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]  6 |     pub program_counter: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]  7 |
[INFO] [stdout]  8 |     pub memory: [u8; 4096],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]  9 |
[INFO] [stdout] 10 |     pub registers: [u8; 16],
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 11 |     pub addr_register: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 12 |
[INFO] [stdout] 13 |     pub screen: [[bool; 64]; 32],
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 14 |
[INFO] [stdout] 15 |     pub delay_timer: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 16 |     pub sound_timer: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `execute_cycle`, `read_word`, and `process_opcode` are never used
[INFO] [stdout]   --> src/chip8.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Chip8 {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn execute_cycle(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn read_word(&self) -> u16 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn process_opcode(&mut self, opcode: u16) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "7259b2fb6179294d77fe22cf54a35f0c63901b7c3c47fa06cc90ae4a3732206a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7259b2fb6179294d77fe22cf54a35f0c63901b7c3c47fa06cc90ae4a3732206a", kill_on_drop: false }`
[INFO] [stdout] 7259b2fb6179294d77fe22cf54a35f0c63901b7c3c47fa06cc90ae4a3732206a
