[INFO] updating cached repository merwaaan/chip8-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/merwaaan/chip8-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/merwaaan/chip8-rust" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/merwaaan/chip8-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/merwaaan/chip8-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/merwaaan/chip8-rust" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/merwaaan/chip8-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/merwaaan/chip8-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c15c55282d1f03463fb539c876d191579948df47 [INFO] sha for GitHub repo merwaaan/chip8-rust: c15c55282d1f03463fb539c876d191579948df47 [INFO] validating manifest of merwaaan/chip8-rust on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of merwaaan/chip8-rust on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing merwaaan/chip8-rust [INFO] finished frobbing merwaaan/chip8-rust [INFO] frobbed toml for merwaaan/chip8-rust written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/merwaaan/chip8-rust/Cargo.toml [INFO] started frobbing merwaaan/chip8-rust [INFO] finished frobbing merwaaan/chip8-rust [INFO] frobbed toml for merwaaan/chip8-rust written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/merwaaan/chip8-rust/Cargo.toml [INFO] crate merwaaan/chip8-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking merwaaan/chip8-rust against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-1/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/merwaaan/chip8-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 2230ca5cca0ff7b082416489544bab75e02839056157fe96a29a1b78d5b7f8cb [INFO] running `"docker" "start" "-a" "2230ca5cca0ff7b082416489544bab75e02839056157fe96a29a1b78d5b7f8cb"` [INFO] [stderr] Compiling libc v0.2.59 [INFO] [stderr] Checking spin v0.5.0 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Compiling x11-dl v2.14.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling rand_chacha v0.2.0 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking getrandom v0.1.6 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking rand_core v0.5.0 [INFO] [stderr] Compiling minifb v0.11.2 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking chip8-rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/core.rs:193:24 [INFO] [stderr] | [INFO] [stderr] 193 | [8, x, y, 6] => // SHR Vx , Vy [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/core.rs:205:24 [INFO] [stderr] | [INFO] [stderr] 205 | [8, x, y, 0xE] => // SHL Vx, Vy [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/core.rs:261:23 [INFO] [stderr] | [INFO] [stderr] 261 | [0xF, x, 0x0, 0xA] => // LD Vx, K [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/core.rs:72:13 [INFO] [stderr] | [INFO] [stderr] 72 | let mut program_mem = &mut self.mem[0x200 .. 0x200 + program.len()]; [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/core.rs:76:13 [INFO] [stderr] | [INFO] [stderr] 76 | let mut font_mem = &mut self.mem[0 .. FONT.len()]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/display.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | let mut buffer: Vec = vec![BLACK; WIDTH * HEIGHT]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `press` [INFO] [stderr] --> src/keyboard.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | pub fn press(&mut self, key: u8) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `release` [INFO] [stderr] --> src/keyboard.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn release(&mut self, key: u8) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::iter::Map` that must be used [INFO] [stderr] --> src/display.rs:72:9 [INFO] [stderr] | [INFO] [stderr] 72 | self.buffer.iter_mut().map(|x| *x = BLACK); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: iterators are lazy and do nothing unless consumed [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/core.rs:193:24 [INFO] [stderr] | [INFO] [stderr] 193 | [8, x, y, 6] => // SHR Vx , Vy [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/core.rs:205:24 [INFO] [stderr] | [INFO] [stderr] 205 | [8, x, y, 0xE] => // SHL Vx, Vy [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/core.rs:261:23 [INFO] [stderr] | [INFO] [stderr] 261 | [0xF, x, 0x0, 0xA] => // LD Vx, K [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/core.rs:72:13 [INFO] [stderr] | [INFO] [stderr] 72 | let mut program_mem = &mut self.mem[0x200 .. 0x200 + program.len()]; [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/core.rs:76:13 [INFO] [stderr] | [INFO] [stderr] 76 | let mut font_mem = &mut self.mem[0 .. FONT.len()]; [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/display.rs:32:13 [INFO] [stderr] | [INFO] [stderr] 32 | let mut buffer: Vec = vec![BLACK; WIDTH * HEIGHT]; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `press` [INFO] [stderr] --> src/keyboard.rs:22:5 [INFO] [stderr] | [INFO] [stderr] 22 | pub fn press(&mut self, key: u8) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `release` [INFO] [stderr] --> src/keyboard.rs:27:5 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn release(&mut self, key: u8) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::iter::Map` that must be used [INFO] [stderr] --> src/display.rs:72:9 [INFO] [stderr] | [INFO] [stderr] 72 | self.buffer.iter_mut().map(|x| *x = BLACK); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: iterators are lazy and do nothing unless consumed [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.46s [INFO] running `"docker" "inspect" "2230ca5cca0ff7b082416489544bab75e02839056157fe96a29a1b78d5b7f8cb"` [INFO] running `"docker" "rm" "-f" "2230ca5cca0ff7b082416489544bab75e02839056157fe96a29a1b78d5b7f8cb"` [INFO] [stdout] 2230ca5cca0ff7b082416489544bab75e02839056157fe96a29a1b78d5b7f8cb