[INFO] updating cached repository https://github.com/merwaaan/chip8-rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c15c55282d1f03463fb539c876d191579948df47 [INFO] checking merwaaan/chip8-rust against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmerwaaan%2Fchip8-rust" "work/builds/worker-4/source"` [INFO] [stderr] Cloning into 'work/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/merwaaan/chip8-rust on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/merwaaan/chip8-rust [INFO] finished tweaking git repo https://github.com/merwaaan/chip8-rust [INFO] tweaked toml for git repo https://github.com/merwaaan/chip8-rust written to work/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/merwaaan/chip8-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d4d2fd708c69703213418817cc711d1e91b3a4ea448a38c436177651a9af695b [INFO] running `"docker" "start" "-a" "d4d2fd708c69703213418817cc711d1e91b3a4ea448a38c436177651a9af695b"` [INFO] [stderr] Compiling x11-dl v2.14.0 [INFO] [stderr] Compiling minifb v0.11.2 [INFO] [stderr] Checking chip8-rust v0.1.0 (/opt/rustwide/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 8.56s [INFO] running `"docker" "inspect" "d4d2fd708c69703213418817cc711d1e91b3a4ea448a38c436177651a9af695b"` [INFO] running `"docker" "rm" "-f" "d4d2fd708c69703213418817cc711d1e91b3a4ea448a38c436177651a9af695b"` [INFO] [stdout] d4d2fd708c69703213418817cc711d1e91b3a4ea448a38c436177651a9af695b