[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] building cadecolvin/chip8-emu 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%2Fcadecolvin%2Fchip8-emu" "/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/cadecolvin/chip8-emu 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/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-0-tc1/source/Cargo.toml [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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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] 73322f0b4c4bf13032cfbd9cc5c3427e4238849e6dd56076552b9fb8c4a6968f [INFO] running `Command { std: "docker" "start" "-a" "73322f0b4c4bf13032cfbd9cc5c3427e4238849e6dd56076552b9fb8c4a6968f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "73322f0b4c4bf13032cfbd9cc5c3427e4238849e6dd56076552b9fb8c4a6968f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73322f0b4c4bf13032cfbd9cc5c3427e4238849e6dd56076552b9fb8c4a6968f", kill_on_drop: false }` [INFO] [stdout] 73322f0b4c4bf13032cfbd9cc5c3427e4238849e6dd56076552b9fb8c4a6968f [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] 6f0ec97795a29c0d5ce3343a078700f7667e837344a78fba04afa91311fc6365 [INFO] running `Command { std: "docker" "start" "-a" "6f0ec97795a29c0d5ce3343a078700f7667e837344a78fba04afa91311fc6365", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling getrandom v0.1.12 [INFO] [stderr] Compiling ppv-lite86 v0.2.5 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.0 [INFO] [stderr] Compiling chip8-emu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `pixel_flipped` is assigned to, but never used [INFO] [stdout] --> src/chip8.rs:140:25 [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)]` 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)]` on by default [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)]` 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)]` 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 3.19s [INFO] running `Command { std: "docker" "inspect" "6f0ec97795a29c0d5ce3343a078700f7667e837344a78fba04afa91311fc6365", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f0ec97795a29c0d5ce3343a078700f7667e837344a78fba04afa91311fc6365", kill_on_drop: false }` [INFO] [stdout] 6f0ec97795a29c0d5ce3343a078700f7667e837344a78fba04afa91311fc6365 [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] 9f8ac4da79a65421625dc65ff2c579520de6b1b5d5c44b1caf80b6cfb95abdf9 [INFO] running `Command { std: "docker" "start" "-a" "9f8ac4da79a65421625dc65ff2c579520de6b1b5d5c44b1caf80b6cfb95abdf9", kill_on_drop: false }` [INFO] [stderr] Compiling chip8-emu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `pixel_flipped` is assigned to, but never used [INFO] [stdout] --> src/chip8.rs:140:25 [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)]` 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)]` on by default [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)]` 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)]` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.22s [INFO] running `Command { std: "docker" "inspect" "9f8ac4da79a65421625dc65ff2c579520de6b1b5d5c44b1caf80b6cfb95abdf9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f8ac4da79a65421625dc65ff2c579520de6b1b5d5c44b1caf80b6cfb95abdf9", kill_on_drop: false }` [INFO] [stdout] 9f8ac4da79a65421625dc65ff2c579520de6b1b5d5c44b1caf80b6cfb95abdf9