[INFO] cloning repository https://github.com/aloggia/rust-chip8 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aloggia/rust-chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faloggia%2Frust-chip8", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faloggia%2Frust-chip8'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7eb11b62d2f785ffced6895e0294b3881331626b [INFO] testing aloggia/rust-chip8 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faloggia%2Frust-chip8" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aloggia/rust-chip8 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aloggia/rust-chip8 [INFO] finished tweaking git repo https://github.com/aloggia/rust-chip8 [INFO] tweaked toml for git repo https://github.com/aloggia/rust-chip8 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/aloggia/rust-chip8 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ff13b138ea778a78c1e25331a2ee2d3b838064f1f1cc85d5ff169f4669776ad0 [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" "ff13b138ea778a78c1e25331a2ee2d3b838064f1f1cc85d5ff169f4669776ad0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ff13b138ea778a78c1e25331a2ee2d3b838064f1f1cc85d5ff169f4669776ad0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff13b138ea778a78c1e25331a2ee2d3b838064f1f1cc85d5ff169f4669776ad0", kill_on_drop: false }` [INFO] [stdout] ff13b138ea778a78c1e25331a2ee2d3b838064f1f1cc85d5ff169f4669776ad0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c1b89604a25e78947074bda22a871c45d270ae568ed6f6c7d3ca77b6a6b0ae8 [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" "4c1b89604a25e78947074bda22a871c45d270ae568ed6f6c7d3ca77b6a6b0ae8", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling xml-rs v0.8.3 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling humantime v2.1.0 [INFO] [stderr] Compiling bindgen v0.56.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling downcast-rs v1.2.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling cc v1.0.68 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling clang-sys v1.2.0 [INFO] [stderr] Compiling wayland-sys v0.28.5 [INFO] [stderr] Compiling nom v6.1.2 [INFO] [stderr] Compiling x11-dl v2.18.5 [INFO] [stderr] Compiling libloading v0.7.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling wayland-scanner v0.28.5 [INFO] [stderr] Compiling minifb v0.19.3 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling wayland-client v0.28.5 [INFO] [stderr] Compiling wayland-protocols v0.28.5 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling which v3.1.1 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling nix v0.20.0 [INFO] [stderr] Compiling raw-window-handle v0.3.3 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling rand_core v0.6.2 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling xcursor v0.3.3 [INFO] [stderr] Compiling cexpr v0.4.0 [INFO] [stderr] Compiling tempfile v3.2.0 [INFO] [stderr] Compiling env_logger v0.8.3 [INFO] [stderr] Compiling wayland-commons v0.28.5 [INFO] [stderr] Compiling wayland-cursor v0.28.5 [INFO] [stderr] Compiling xkbcommon-sys v0.7.5 [INFO] [stderr] Compiling xkb v0.2.1 [INFO] [stderr] Compiling rust-chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `KeyRepeat`, `Key`, `Window` [INFO] [stdout] --> src/keyboard.rs:1:14 [INFO] [stdout] | [INFO] [stdout] 1 | use minifb::{Window, KeyRepeat, Key}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | window.update_with_buffer(&buffer, width, height); [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: comparison is useless due to type limits [INFO] [stdout] --> src/cpu.rs:169:28 [INFO] [stdout] | [INFO] [stdout] 169 | if diff < 0 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:342:9 [INFO] [stdout] | [INFO] [stdout] 342 | write!(f, "\n{:#X}\n", self.pc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:343:9 [INFO] [stdout] | [INFO] [stdout] 343 | write!(f, "vx: "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:345:13 [INFO] [stdout] | [INFO] [stdout] 345 | write!(f, "{:#X}", *item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:347:9 [INFO] [stdout] | [INFO] [stdout] 347 | write!(f, "\n"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 50s [INFO] running `Command { std: "docker" "inspect" "4c1b89604a25e78947074bda22a871c45d270ae568ed6f6c7d3ca77b6a6b0ae8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c1b89604a25e78947074bda22a871c45d270ae568ed6f6c7d3ca77b6a6b0ae8", kill_on_drop: false }` [INFO] [stdout] 4c1b89604a25e78947074bda22a871c45d270ae568ed6f6c7d3ca77b6a6b0ae8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f4dc7c827fe895a0940f14e39c2477ab5951f9d415fd7be9d37e4c930e34dcb3 [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" "f4dc7c827fe895a0940f14e39c2477ab5951f9d415fd7be9d37e4c930e34dcb3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `KeyRepeat`, `Key`, `Window` [INFO] [stdout] --> src/keyboard.rs:1:14 [INFO] [stdout] | [INFO] [stdout] 1 | use minifb::{Window, KeyRepeat, Key}; [INFO] [stdout] | ^^^^^^ ^^^^^^^^^ ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:120:13 [INFO] [stdout] | [INFO] [stdout] 120 | window.update_with_buffer(&buffer, width, height); [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: comparison is useless due to type limits [INFO] [stdout] --> src/cpu.rs:169:28 [INFO] [stdout] | [INFO] [stdout] 169 | if diff < 0 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:342:9 [INFO] [stdout] | [INFO] [stdout] 342 | write!(f, "\n{:#X}\n", self.pc); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:343:9 [INFO] [stdout] | [INFO] [stdout] 343 | write!(f, "vx: "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:345:13 [INFO] [stdout] | [INFO] [stdout] 345 | write!(f, "{:#X}", *item); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/cpu.rs:347:9 [INFO] [stdout] | [INFO] [stdout] 347 | write!(f, "\n"); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.19s [INFO] running `Command { std: "docker" "inspect" "f4dc7c827fe895a0940f14e39c2477ab5951f9d415fd7be9d37e4c930e34dcb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4dc7c827fe895a0940f14e39c2477ab5951f9d415fd7be9d37e4c930e34dcb3", kill_on_drop: false }` [INFO] [stdout] f4dc7c827fe895a0940f14e39c2477ab5951f9d415fd7be9d37e4c930e34dcb3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 57034ed886145d728b99fe35207c4b0ec47d0a29e49103d9792714ded1c69cb1 [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" "57034ed886145d728b99fe35207c4b0ec47d0a29e49103d9792714ded1c69cb1", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] [INFO] [stderr] warning: unused imports: `KeyRepeat`, `Key`, `Window` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/keyboard.rs:1:14 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 1 | use minifb::{Window, KeyRepeat, Key}; [INFO] [stdout] [INFO] [stderr] | ^^^^^^ ^^^^^^^^^ ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:120:13 [INFO] [stderr] | [INFO] [stderr] 120 | window.update_with_buffer(&buffer, width, height); [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: comparison is useless due to type limits [INFO] [stderr] --> src/cpu.rs:169:28 [INFO] [stderr] | [INFO] [stderr] 169 | if diff < 0 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/cpu.rs:342:9 [INFO] [stderr] | [INFO] [stderr] 342 | write!(f, "\n{:#X}\n", self.pc); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/cpu.rs:343:9 [INFO] [stderr] | [INFO] [stderr] 343 | write!(f, "vx: "); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/cpu.rs:345:13 [INFO] [stderr] | [INFO] [stderr] 345 | write!(f, "{:#X}", *item); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/cpu.rs:347:9 [INFO] [stderr] | [INFO] [stderr] 347 | write!(f, "\n"); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `rust-chip8` (bin "rust-chip8" test) generated 7 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.17s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_chip8-37b4d15baaf5e160) [INFO] running `Command { std: "docker" "inspect" "57034ed886145d728b99fe35207c4b0ec47d0a29e49103d9792714ded1c69cb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57034ed886145d728b99fe35207c4b0ec47d0a29e49103d9792714ded1c69cb1", kill_on_drop: false }` [INFO] [stdout] 57034ed886145d728b99fe35207c4b0ec47d0a29e49103d9792714ded1c69cb1