[INFO] cloning repository https://github.com/DomParfitt/chip-8 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DomParfitt/chip-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDomParfitt%2Fchip-8", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDomParfitt%2Fchip-8'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3d5eb2d9969b9621efbcd7efbd3956c473e75861 [INFO] checking DomParfitt/chip-8 against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDomParfitt%2Fchip-8" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DomParfitt/chip-8 on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/DomParfitt/chip-8 [INFO] finished tweaking git repo https://github.com/DomParfitt/chip-8 [INFO] tweaked toml for git repo https://github.com/DomParfitt/chip-8 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/DomParfitt/chip-8 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c3072bb1f8d8c7161264eecbe9345c72c170d127e2201b1710879aa6d1c1e181 [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" "c3072bb1f8d8c7161264eecbe9345c72c170d127e2201b1710879aa6d1c1e181", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c3072bb1f8d8c7161264eecbe9345c72c170d127e2201b1710879aa6d1c1e181", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3072bb1f8d8c7161264eecbe9345c72c170d127e2201b1710879aa6d1c1e181", kill_on_drop: false }` [INFO] [stdout] c3072bb1f8d8c7161264eecbe9345c72c170d127e2201b1710879aa6d1c1e181 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ded6de93d6dca3836ee084feab550da8d337ea61b6678b7a42e6b0b08d3bddd [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" "1ded6de93d6dca3836ee084feab550da8d337ea61b6678b7a42e6b0b08d3bddd", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.41 [INFO] [stderr] Checking bitflags v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.4 [INFO] [stderr] Compiling cfg-if v0.1.3 [INFO] [stderr] Compiling cc v1.0.17 [INFO] [stderr] Compiling num-integer v0.1.38 [INFO] [stderr] Checking token_store v0.1.2 [INFO] [stderr] Compiling serde v1.0.64 [INFO] [stderr] Checking adler32 v1.0.2 [INFO] [stderr] Checking shader_version v0.3.0 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking color_quant v1.0.0 [INFO] [stderr] Checking piston-texture v0.6.0 [INFO] [stderr] Checking read_color v1.0.0 [INFO] [stderr] Checking rand_core v0.2.0 [INFO] [stderr] Compiling proc-macro2 v0.4.4 [INFO] [stderr] Compiling x11-dl v2.17.5 [INFO] [stderr] Checking unreachable v0.1.1 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking draw_state v0.8.0 [INFO] [stderr] Compiling wayland-scanner v0.12.5 [INFO] [stderr] Compiling derivative v1.0.0 [INFO] [stderr] Checking inflate v0.4.2 [INFO] [stderr] Checking deflate v0.7.18 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking gif v0.10.0 [INFO] [stderr] Compiling gl_generator v0.9.0 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling wayland-client v0.12.5 [INFO] [stderr] Compiling wayland-protocols v0.12.5 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking memmap v0.6.2 [INFO] [stderr] Checking shared_library v0.1.8 [INFO] [stderr] Checking rand v0.5.0 [INFO] [stderr] Compiling quote v0.6.3 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Compiling syn v0.14.1 [INFO] [stderr] Checking rayon-core v1.4.0 [INFO] [stderr] Checking tempfile v3.0.2 [INFO] [stderr] Checking rayon v1.0.1 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking ordered-float v0.5.0 [INFO] [stderr] Compiling gfx_gl v0.5.0 [INFO] [stderr] Compiling glutin v0.14.0 [INFO] [stderr] Compiling gl v0.10.0 [INFO] [stderr] Checking num-iter v0.1.37 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking rusttype v0.4.3 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Compiling libloading v0.5.0 [INFO] [stderr] Checking piston2d-graphics v0.26.0 [INFO] [stderr] Checking gfx_core v0.8.2 [INFO] [stderr] Checking dlib v0.4.1 [INFO] [stderr] Checking wayland-sys v0.12.5 [INFO] [stderr] Checking jpeg-decoder v0.1.14 [INFO] [stderr] Checking wayland-kbd v0.13.1 [INFO] [stderr] Compiling serde_derive v1.0.64 [INFO] [stderr] Compiling num-derive v0.2.2 [INFO] [stderr] Checking image v0.19.0 [INFO] [stderr] Checking gfx v0.17.1 [INFO] [stderr] Checking wayland-window v0.13.3 [INFO] [stderr] Checking winit v0.12.0 [INFO] [stderr] Checking gfx_device_gl v0.15.3 [INFO] [stderr] Checking piston-gfx_texture v0.32.0 [INFO] [stderr] Checking piston2d-gfx_graphics v0.51.0 [INFO] [stderr] Checking pistoncore-input v0.21.0 [INFO] [stderr] Checking pistoncore-window v0.32.0 [INFO] [stderr] Checking pistoncore-event_loop v0.37.0 [INFO] [stderr] Checking pistoncore-glutin_window v0.47.0 [INFO] [stderr] Checking piston v0.37.0 [INFO] [stderr] Checking piston_window v0.80.0 [INFO] [stderr] Checking emu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/main.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Duration` [INFO] [stdout] --> src/main.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use std::time::{Duration, Instant}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `now` [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut now = Instant::now(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_now` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cycle_count` is assigned to, but never used [INFO] [stdout] --> src/main.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let mut cycle_count = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_cycle_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `high` is assigned to, but never used [INFO] [stdout] --> src/assembler/mod.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | let mut high: u8; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_high` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `low` is assigned to, but never used [INFO] [stdout] --> src/assembler/mod.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut low: u8; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_low` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | high = (0x8 << 8) | get_register_number(x); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:20:17 [INFO] [stdout] | [INFO] [stdout] 20 | low = (get_register_number(y) << 8) | 0x2; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:24:17 [INFO] [stdout] | [INFO] [stdout] 24 | high = 0x00; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 25 | low = 0xE0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | high = 0x00; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:35:17 [INFO] [stdout] | [INFO] [stdout] 35 | low = 0xEE; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | high = (0x3 << 4) | get_register_number(register_token); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:44:21 [INFO] [stdout] | [INFO] [stdout] 44 | low = get_register_number(tokens[i]) << 4; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:46:21 [INFO] [stdout] | [INFO] [stdout] 46 | low = u8::from_str_radix(tokens[i], 16).unwrap(); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:58:19 [INFO] [stdout] | [INFO] [stdout] 58 | _ => {high = 0x00; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:59:17 [INFO] [stdout] | [INFO] [stdout] 59 | low = 0xE0;}//panic!("Unrecognised token."), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `operand` [INFO] [stdout] --> src/assembler/mod.rs:70:34 [INFO] [stdout] | [INFO] [stdout] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operand` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_byte` [INFO] [stdout] --> src/chip8/mod.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | let high_byte = opcode.high_byte; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_byte` [INFO] [stdout] --> src/chip8/mod.rs:442:13 [INFO] [stdout] | [INFO] [stdout] 442 | let high_byte = opcode.high_byte; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut now = Instant::now(); [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: variable does not need to be mutable [INFO] [stdout] --> src/assembler/mod.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut assembled_program: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/assembler/mod.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | let mut high: u8; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/assembler/mod.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut low: u8; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `assemble` [INFO] [stdout] --> src/assembler/mod.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn assemble(program: String) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `assemble_opcode` [INFO] [stdout] --> src/assembler/mod.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_register_number` [INFO] [stdout] --> src/assembler/mod.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 80 | fn get_register_number(token: &str) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `load_program` [INFO] [stdout] --> src/chip8/mod.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn load_program(&mut self, program: Vec) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_display` [INFO] [stdout] --> src/chip8/mod.rs:92:12 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn print_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `high_nibble_from_byte` [INFO] [stdout] --> src/chip8/mod.rs:402:8 [INFO] [stdout] | [INFO] [stdout] 402 | fn high_nibble_from_byte(byte: u8) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `low_nibble_from_byte` [INFO] [stdout] --> src/chip8/mod.rs:406:8 [INFO] [stdout] | [INFO] [stdout] 406 | fn low_nibble_from_byte(byte: u8) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | io::stdin().read_line(&mut input); [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: structure field `V` should have a snake case name [INFO] [stdout] --> src/chip8/mod.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | pub V: [u8; 16], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `I` should have a snake case name [INFO] [stdout] --> src/chip8/mod.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | pub I: u16, [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `now` [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut now = Instant::now(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_now` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `cycle_count` is assigned to, but never used [INFO] [stdout] --> src/main.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let mut cycle_count = 0; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_cycle_count` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `high` is assigned to, but never used [INFO] [stdout] --> src/assembler/mod.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | let mut high: u8; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_high` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `low` is assigned to, but never used [INFO] [stdout] --> src/assembler/mod.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut low: u8; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_low` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | high = (0x8 << 8) | get_register_number(x); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:20:17 [INFO] [stdout] | [INFO] [stdout] 20 | low = (get_register_number(y) << 8) | 0x2; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:24:17 [INFO] [stdout] | [INFO] [stdout] 24 | high = 0x00; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:25:17 [INFO] [stdout] | [INFO] [stdout] 25 | low = 0xE0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | high = 0x00; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:35:17 [INFO] [stdout] | [INFO] [stdout] 35 | low = 0xEE; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:41:17 [INFO] [stdout] | [INFO] [stdout] 41 | high = (0x3 << 4) | get_register_number(register_token); [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:44:21 [INFO] [stdout] | [INFO] [stdout] 44 | low = get_register_number(tokens[i]) << 4; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:46:21 [INFO] [stdout] | [INFO] [stdout] 46 | low = u8::from_str_radix(tokens[i], 16).unwrap(); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `high` is never read [INFO] [stdout] --> src/assembler/mod.rs:58:19 [INFO] [stdout] | [INFO] [stdout] 58 | _ => {high = 0x00; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `low` is never read [INFO] [stdout] --> src/assembler/mod.rs:59:17 [INFO] [stdout] | [INFO] [stdout] 59 | low = 0xE0;}//panic!("Unrecognised token."), [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `operand` [INFO] [stdout] --> src/assembler/mod.rs:70:34 [INFO] [stdout] | [INFO] [stdout] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operand` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_byte` [INFO] [stdout] --> src/chip8/mod.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | let high_byte = opcode.high_byte; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high_byte` [INFO] [stdout] --> src/chip8/mod.rs:442:13 [INFO] [stdout] | [INFO] [stdout] 442 | let high_byte = opcode.high_byte; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_high_byte` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut now = Instant::now(); [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: variable does not need to be mutable [INFO] [stdout] --> src/assembler/mod.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut assembled_program: Vec = Vec::new(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/assembler/mod.rs:10:13 [INFO] [stdout] | [INFO] [stdout] 10 | let mut high: u8; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/assembler/mod.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut low: u8; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 33 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test` [INFO] [stdout] --> src/assembler/tests.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `assemble` [INFO] [stdout] --> src/assembler/mod.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn assemble(program: String) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `assemble_opcode` [INFO] [stdout] --> src/assembler/mod.rs:70:4 [INFO] [stdout] | [INFO] [stdout] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_register_number` [INFO] [stdout] --> src/assembler/mod.rs:80:4 [INFO] [stdout] | [INFO] [stdout] 80 | fn get_register_number(token: &str) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_display` [INFO] [stdout] --> src/chip8/mod.rs:92:12 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn print_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `high_nibble_from_byte` [INFO] [stdout] --> src/chip8/mod.rs:402:8 [INFO] [stdout] | [INFO] [stdout] 402 | fn high_nibble_from_byte(byte: u8) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `low_nibble_from_byte` [INFO] [stdout] --> src/chip8/mod.rs:406:8 [INFO] [stdout] | [INFO] [stdout] 406 | fn low_nibble_from_byte(byte: u8) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | io::stdin().read_line(&mut input); [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: structure field `V` should have a snake case name [INFO] [stdout] --> src/chip8/mod.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | pub V: [u8; 16], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `I` should have a snake case name [INFO] [stdout] --> src/chip8/mod.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | pub I: u16, [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 33 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 20s [INFO] running `Command { std: "docker" "inspect" "1ded6de93d6dca3836ee084feab550da8d337ea61b6678b7a42e6b0b08d3bddd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ded6de93d6dca3836ee084feab550da8d337ea61b6678b7a42e6b0b08d3bddd", kill_on_drop: false }` [INFO] [stdout] 1ded6de93d6dca3836ee084feab550da8d337ea61b6678b7a42e6b0b08d3bddd