[INFO] cloning repository https://github.com/shawngiroux/rusty-chip8 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shawngiroux/rusty-chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshawngiroux%2Frusty-chip8", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshawngiroux%2Frusty-chip8'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4b24080a7a4460aec51cc25b9614587636da4875 [INFO] testing shawngiroux/rusty-chip8 against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshawngiroux%2Frusty-chip8" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shawngiroux/rusty-chip8 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shawngiroux/rusty-chip8 [INFO] finished tweaking git repo https://github.com/shawngiroux/rusty-chip8 [INFO] tweaked toml for git repo https://github.com/shawngiroux/rusty-chip8 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/shawngiroux/rusty-chip8 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded humantime v2.1.0 [INFO] [stderr] Downloaded xattr v0.2.2 [INFO] [stderr] Downloaded xkb v0.2.1 [INFO] [stderr] Downloaded libloading v0.6.7 [INFO] [stderr] Downloaded quote v1.0.8 [INFO] [stderr] Downloaded crc32fast v1.2.1 [INFO] [stderr] Downloaded wayland-sys v0.27.0 [INFO] [stderr] Downloaded redox_syscall v0.2.4 [INFO] [stderr] Downloaded version-compare v0.0.10 [INFO] [stderr] Downloaded unidiff v0.3.3 [INFO] [stderr] Downloaded tar v0.4.32 [INFO] [stderr] Downloaded xcursor v0.3.3 [INFO] [stderr] Downloaded miniz_oxide v0.4.3 [INFO] [stderr] Downloaded cmake v0.1.45 [INFO] [stderr] Downloaded xkbcommon-sys v0.7.5 [INFO] [stderr] Downloaded wayland-protocols v0.27.0 [INFO] [stderr] Downloaded xml-rs v0.8.3 [INFO] [stderr] Downloaded clang-sys v1.1.0 [INFO] [stderr] Downloaded bindgen v0.56.0 [INFO] [stderr] Downloaded hermit-abi v0.1.18 [INFO] [stderr] Downloaded filetime v0.2.14 [INFO] [stderr] Downloaded downcast-rs v1.2.0 [INFO] [stderr] Downloaded nom v6.1.0 [INFO] [stderr] Downloaded sdl2 v0.34.3 [INFO] [stderr] Downloaded wayland-client v0.27.0 [INFO] [stderr] Downloaded wayland-cursor v0.27.0 [INFO] [stderr] Downloaded wayland-commons v0.27.0 [INFO] [stderr] Downloaded wayland-scanner v0.27.0 [INFO] [stderr] Downloaded sdl2-sys v0.34.3 [INFO] [stderr] Downloaded minifb v0.19.2 [INFO] [stderr] Downloaded orbclient v0.3.30 [INFO] [stderr] Downloaded x11-dl v2.18.5 [INFO] [stderr] Downloaded thread_local v1.1.3 [INFO] [stderr] Downloaded flate2 v1.0.20 [INFO] [stderr] Downloaded env_logger v0.8.2 [INFO] [stderr] Downloaded once_cell v1.5.2 [INFO] [stderr] Downloaded raw-window-handle v0.3.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 416db3d413e3815f8e19398d6abd306d06efdbb88e5e89e7ca868bcd6fac9cbf [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "416db3d413e3815f8e19398d6abd306d06efdbb88e5e89e7ca868bcd6fac9cbf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "416db3d413e3815f8e19398d6abd306d06efdbb88e5e89e7ca868bcd6fac9cbf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "416db3d413e3815f8e19398d6abd306d06efdbb88e5e89e7ca868bcd6fac9cbf", kill_on_drop: false }` [INFO] [stdout] 416db3d413e3815f8e19398d6abd306d06efdbb88e5e89e7ca868bcd6fac9cbf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 25a1f798ea07bba3dafb2d856b15d19a382c528ed647e994ec8b180482b13a7b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "25a1f798ea07bba3dafb2d856b15d19a382c528ed647e994ec8b180482b13a7b", kill_on_drop: false }` [INFO] [stderr] Compiling bindgen v0.56.0 [INFO] [stderr] Compiling clang-sys v1.1.0 [INFO] [stderr] Compiling wayland-sys v0.27.0 [INFO] [stderr] Compiling nom v6.1.0 [INFO] [stderr] Compiling minifb v0.19.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling which v3.1.1 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling wayland-scanner v0.27.0 [INFO] [stderr] Compiling env_logger v0.8.2 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling rand_core v0.6.1 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling wayland-client v0.27.0 [INFO] [stderr] Compiling wayland-protocols v0.27.0 [INFO] [stderr] Compiling tempfile v3.2.0 [INFO] [stderr] Compiling cexpr v0.4.0 [INFO] [stderr] Compiling xcursor v0.3.3 [INFO] [stderr] Compiling wayland-commons v0.27.0 [INFO] [stderr] Compiling wayland-cursor v0.27.0 [INFO] [stderr] Compiling xkbcommon-sys v0.7.5 [INFO] [stderr] Compiling xkb v0.2.1 [INFO] [stderr] Compiling rusty-chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:191:26 [INFO] [stdout] | [INFO] [stdout] 191 | let NN = (self.opcode & 0x00FF); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:245:31 [INFO] [stdout] | [INFO] [stdout] 245 | let sub = ((self.V[VX as usize] as i16) - (self.V[VY as usize] as i16)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:301:26 [INFO] [stdout] | [INFO] [stdout] 301 | self.I = (self.opcode & 0x0FFF); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:311:26 [INFO] [stdout] | [INFO] [stdout] 311 | let NN = (self.opcode & 0x00FF); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `w` [INFO] [stdout] --> src/main.rs:325:21 [INFO] [stdout] | [INFO] [stdout] 325 | let w = (self.width - 1) as u16; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_w` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `height` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | height: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `debug_cpu_registers` [INFO] [stdout] --> src/main.rs:486:8 [INFO] [stdout] | [INFO] [stdout] 486 | fn debug_cpu_registers(V: [u16; 16]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | f.read_to_end(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 11s [INFO] running `Command { std: "docker" "inspect" "25a1f798ea07bba3dafb2d856b15d19a382c528ed647e994ec8b180482b13a7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25a1f798ea07bba3dafb2d856b15d19a382c528ed647e994ec8b180482b13a7b", kill_on_drop: false }` [INFO] [stdout] 25a1f798ea07bba3dafb2d856b15d19a382c528ed647e994ec8b180482b13a7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 391ad37b9ed04d5908b637364de4892553e9c40c1377693f53f1ff8f340a9682 [INFO] running `Command { std: "docker" "start" "-a" "391ad37b9ed04d5908b637364de4892553e9c40c1377693f53f1ff8f340a9682", kill_on_drop: false }` [INFO] [stderr] Compiling rusty-chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:191:26 [INFO] [stdout] | [INFO] [stdout] 191 | let NN = (self.opcode & 0x00FF); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:245:31 [INFO] [stdout] | [INFO] [stdout] 245 | let sub = ((self.V[VX as usize] as i16) - (self.V[VY as usize] as i16)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:301:26 [INFO] [stdout] | [INFO] [stdout] 301 | self.I = (self.opcode & 0x0FFF); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/main.rs:311:26 [INFO] [stdout] | [INFO] [stdout] 311 | let NN = (self.opcode & 0x00FF); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `w` [INFO] [stdout] --> src/main.rs:325:21 [INFO] [stdout] | [INFO] [stdout] 325 | let w = (self.width - 1) as u16; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_w` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `height` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | height: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `debug_cpu_registers` [INFO] [stdout] --> src/main.rs:486:8 [INFO] [stdout] | [INFO] [stdout] 486 | fn debug_cpu_registers(V: [u16; 16]) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 48 | f.read_to_end(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.49s [INFO] running `Command { std: "docker" "inspect" "391ad37b9ed04d5908b637364de4892553e9c40c1377693f53f1ff8f340a9682", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "391ad37b9ed04d5908b637364de4892553e9c40c1377693f53f1ff8f340a9682", kill_on_drop: false }` [INFO] [stdout] 391ad37b9ed04d5908b637364de4892553e9c40c1377693f53f1ff8f340a9682 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d75e9184420d685f6bd9eb5f1c0632b1a4e628af0f99527bbb017ded54b441a1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d75e9184420d685f6bd9eb5f1c0632b1a4e628af0f99527bbb017ded54b441a1", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:191:26 [INFO] [stderr] | [INFO] [stderr] 191 | let NN = (self.opcode & 0x00FF); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:245:31 [INFO] [stderr] | [INFO] [stderr] 245 | let sub = ((self.V[VX as usize] as i16) - (self.V[VY as usize] as i16)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:301:26 [INFO] [stderr] | [INFO] [stderr] 301 | self.I = (self.opcode & 0x0FFF); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:311:26 [INFO] [stderr] | [INFO] [stderr] 311 | let NN = (self.opcode & 0x00FF); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `w` [INFO] [stderr] --> src/main.rs:325:21 [INFO] [stderr] | [INFO] [stderr] 325 | let w = (self.width - 1) as u16; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_w` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `height` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | height: u32, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `debug_cpu_registers` [INFO] [stderr] --> src/main.rs:486:8 [INFO] [stderr] | [INFO] [stderr] 486 | fn debug_cpu_registers(V: [u16; 16]) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:48:9 [INFO] [stderr] | [INFO] [stderr] 48 | f.read_to_end(&mut buffer); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `rusty-chip8` (bin "rusty-chip8" test) generated 8 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rusty_chip8-759aaf7f27ae9183) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d75e9184420d685f6bd9eb5f1c0632b1a4e628af0f99527bbb017ded54b441a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d75e9184420d685f6bd9eb5f1c0632b1a4e628af0f99527bbb017ded54b441a1", kill_on_drop: false }` [INFO] [stdout] d75e9184420d685f6bd9eb5f1c0632b1a4e628af0f99527bbb017ded54b441a1