[INFO] updating cached repository DomParfitt/chip-8 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/DomParfitt/chip-8 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/DomParfitt/chip-8" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/DomParfitt/chip-8"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/DomParfitt/chip-8'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/DomParfitt/chip-8" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/DomParfitt/chip-8"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/DomParfitt/chip-8'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3d5eb2d9969b9621efbcd7efbd3956c473e75861 [INFO] sha for GitHub repo DomParfitt/chip-8: 3d5eb2d9969b9621efbcd7efbd3956c473e75861 [INFO] validating manifest of DomParfitt/chip-8 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of DomParfitt/chip-8 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing DomParfitt/chip-8 [INFO] finished frobbing DomParfitt/chip-8 [INFO] frobbed toml for DomParfitt/chip-8 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/DomParfitt/chip-8/Cargo.toml [INFO] started frobbing DomParfitt/chip-8 [INFO] finished frobbing DomParfitt/chip-8 [INFO] frobbed toml for DomParfitt/chip-8 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/DomParfitt/chip-8/Cargo.toml [INFO] crate DomParfitt/chip-8 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking DomParfitt/chip-8 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-7/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/DomParfitt/chip-8:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 51472810f1b1bcba2aeee1d98c394742e51ec80f302ea4d834eabdd86142879e [INFO] running `"docker" "start" "-a" "51472810f1b1bcba2aeee1d98c394742e51ec80f302ea4d834eabdd86142879e"` [INFO] [stderr] Checking memmap v0.6.2 [INFO] [stderr] Checking shared_library v0.1.8 [INFO] [stderr] Checking tempfile v3.0.2 [INFO] [stderr] Checking x11-dl v2.17.5 [INFO] [stderr] Checking rayon-core v1.4.0 [INFO] [stderr] Checking wayland-client v0.12.5 [INFO] [stderr] Checking pistoncore-input v0.21.0 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Checking rayon v1.0.1 [INFO] [stderr] Checking wayland-protocols v0.12.5 [INFO] [stderr] Checking wayland-kbd v0.13.1 [INFO] [stderr] Checking pistoncore-window v0.32.0 [INFO] [stderr] Checking pistoncore-event_loop v0.37.0 [INFO] [stderr] Checking jpeg-decoder v0.1.14 [INFO] [stderr] Checking piston v0.37.0 [INFO] [stderr] Checking wayland-window v0.13.3 [INFO] [stderr] Checking image v0.19.0 [INFO] [stderr] Checking winit v0.12.0 [INFO] [stderr] Checking glutin v0.14.0 [INFO] [stderr] Checking pistoncore-glutin_window v0.47.0 [INFO] [stderr] Checking piston-gfx_texture v0.32.0 [INFO] [stderr] Checking piston2d-gfx_graphics v0.51.0 [INFO] [stderr] Checking piston_window v0.80.0 [INFO] [stderr] Checking emu v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Duration` [INFO] [stderr] --> src/main.rs:8:17 [INFO] [stderr] | [INFO] [stderr] 8 | use std::time::{Duration, Instant}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `now` [INFO] [stderr] --> src/main.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut now = Instant::now(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_now` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable `cycle_count` is assigned to, but never used [INFO] [stderr] --> src/main.rs:25:13 [INFO] [stderr] | [INFO] [stderr] 25 | let mut cycle_count = 0; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_cycle_count` instead [INFO] [stderr] [INFO] [stderr] warning: variable `high` is assigned to, but never used [INFO] [stderr] --> src/assembler/mod.rs:10:17 [INFO] [stderr] | [INFO] [stderr] 10 | let mut high: u8; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_high` instead [INFO] [stderr] [INFO] [stderr] warning: variable `low` is assigned to, but never used [INFO] [stderr] --> src/assembler/mod.rs:11:17 [INFO] [stderr] | [INFO] [stderr] 11 | let mut low: u8; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_low` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:17:17 [INFO] [stderr] | [INFO] [stderr] 17 | high = (0x8 << 8) | get_register_number(x); [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:20:17 [INFO] [stderr] | [INFO] [stderr] 20 | low = (get_register_number(y) << 8) | 0x2; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:24:17 [INFO] [stderr] | [INFO] [stderr] 24 | high = 0x00; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:25:17 [INFO] [stderr] | [INFO] [stderr] 25 | low = 0xE0; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:34:17 [INFO] [stderr] | [INFO] [stderr] 34 | high = 0x00; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:35:17 [INFO] [stderr] | [INFO] [stderr] 35 | low = 0xEE; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:41:17 [INFO] [stderr] | [INFO] [stderr] 41 | high = (0x3 << 4) | get_register_number(register_token); [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:44:21 [INFO] [stderr] | [INFO] [stderr] 44 | low = get_register_number(tokens[i]) << 4; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:46:21 [INFO] [stderr] | [INFO] [stderr] 46 | low = u8::from_str_radix(tokens[i], 16).unwrap(); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:58:19 [INFO] [stderr] | [INFO] [stderr] 58 | _ => {high = 0x00; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:59:17 [INFO] [stderr] | [INFO] [stderr] 59 | low = 0xE0;}//panic!("Unrecognised token."), [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `operand` [INFO] [stderr] --> src/assembler/mod.rs:70:34 [INFO] [stderr] | [INFO] [stderr] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_operand` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `high_byte` [INFO] [stderr] --> src/chip8/mod.rs:145:13 [INFO] [stderr] | [INFO] [stderr] 145 | let high_byte = opcode.high_byte; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_high_byte` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `high_byte` [INFO] [stderr] --> src/chip8/mod.rs:442:13 [INFO] [stderr] | [INFO] [stderr] 442 | let high_byte = opcode.high_byte; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_high_byte` [INFO] [stderr] [INFO] [stderr] warning: unused import: `Duration` [INFO] [stderr] --> src/main.rs:8:17 [INFO] [stderr] | [INFO] [stderr] 8 | use std::time::{Duration, Instant}; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let mut now = Instant::now(); [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/assembler/mod.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let mut assembled_program: Vec = Vec::new(); [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/assembler/mod.rs:10:13 [INFO] [stderr] | [INFO] [stderr] 10 | let mut high: u8; [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/assembler/mod.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | let mut low: u8; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `assemble` [INFO] [stderr] --> src/assembler/mod.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn assemble(program: String) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `assemble_opcode` [INFO] [stderr] --> src/assembler/mod.rs:70:1 [INFO] [stderr] | [INFO] [stderr] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_register_number` [INFO] [stderr] --> src/assembler/mod.rs:80:1 [INFO] [stderr] | [INFO] [stderr] 80 | fn get_register_number(token: &str) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_program` [INFO] [stderr] --> src/chip8/mod.rs:49:5 [INFO] [stderr] | [INFO] [stderr] 49 | pub fn load_program(&mut self, program: Vec) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print_display` [INFO] [stderr] --> src/chip8/mod.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn print_display(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `high_nibble_from_byte` [INFO] [stderr] --> src/chip8/mod.rs:402:5 [INFO] [stderr] | [INFO] [stderr] 402 | fn high_nibble_from_byte(byte: u8) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `low_nibble_from_byte` [INFO] [stderr] --> src/chip8/mod.rs:406:5 [INFO] [stderr] | [INFO] [stderr] 406 | fn low_nibble_from_byte(byte: u8) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: structure field `V` should have a snake case name [INFO] [stderr] --> src/chip8/mod.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | pub V: [u8; 16], [INFO] [stderr] | ^ help: convert the identifier to snake case: `v` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: structure field `I` should have a snake case name [INFO] [stderr] --> src/chip8/mod.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | pub I: u16, [INFO] [stderr] | ^ help: convert the identifier to snake case: `i` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | io::stdin().read_line(&mut input); [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: unused variable: `now` [INFO] [stderr] --> src/main.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut now = Instant::now(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_now` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable `cycle_count` is assigned to, but never used [INFO] [stderr] --> src/main.rs:25:13 [INFO] [stderr] | [INFO] [stderr] 25 | let mut cycle_count = 0; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_cycle_count` instead [INFO] [stderr] [INFO] [stderr] warning: variable `high` is assigned to, but never used [INFO] [stderr] --> src/assembler/mod.rs:10:17 [INFO] [stderr] | [INFO] [stderr] 10 | let mut high: u8; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_high` instead [INFO] [stderr] [INFO] [stderr] warning: variable `low` is assigned to, but never used [INFO] [stderr] --> src/assembler/mod.rs:11:17 [INFO] [stderr] | [INFO] [stderr] 11 | let mut low: u8; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_low` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:17:17 [INFO] [stderr] | [INFO] [stderr] 17 | high = (0x8 << 8) | get_register_number(x); [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:20:17 [INFO] [stderr] | [INFO] [stderr] 20 | low = (get_register_number(y) << 8) | 0x2; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:24:17 [INFO] [stderr] | [INFO] [stderr] 24 | high = 0x00; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:25:17 [INFO] [stderr] | [INFO] [stderr] 25 | low = 0xE0; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:34:17 [INFO] [stderr] | [INFO] [stderr] 34 | high = 0x00; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:35:17 [INFO] [stderr] | [INFO] [stderr] 35 | low = 0xEE; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:41:17 [INFO] [stderr] | [INFO] [stderr] 41 | high = (0x3 << 4) | get_register_number(register_token); [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:44:21 [INFO] [stderr] | [INFO] [stderr] 44 | low = get_register_number(tokens[i]) << 4; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:46:21 [INFO] [stderr] | [INFO] [stderr] 46 | low = u8::from_str_radix(tokens[i], 16).unwrap(); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `high` is never read [INFO] [stderr] --> src/assembler/mod.rs:58:19 [INFO] [stderr] | [INFO] [stderr] 58 | _ => {high = 0x00; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `low` is never read [INFO] [stderr] --> src/assembler/mod.rs:59:17 [INFO] [stderr] | [INFO] [stderr] 59 | low = 0xE0;}//panic!("Unrecognised token."), [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `operand` [INFO] [stderr] --> src/assembler/mod.rs:70:34 [INFO] [stderr] | [INFO] [stderr] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_operand` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `high_byte` [INFO] [stderr] --> src/chip8/mod.rs:145:13 [INFO] [stderr] | [INFO] [stderr] 145 | let high_byte = opcode.high_byte; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_high_byte` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `high_byte` [INFO] [stderr] --> src/chip8/mod.rs:442:13 [INFO] [stderr] | [INFO] [stderr] 442 | let high_byte = opcode.high_byte; [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_high_byte` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let mut now = Instant::now(); [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/assembler/mod.rs:5:9 [INFO] [stderr] | [INFO] [stderr] 5 | let mut assembled_program: Vec = Vec::new(); [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/assembler/mod.rs:10:13 [INFO] [stderr] | [INFO] [stderr] 10 | let mut high: u8; [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/assembler/mod.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | let mut low: u8; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test` [INFO] [stderr] --> src/assembler/tests.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn test() { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `assemble` [INFO] [stderr] --> src/assembler/mod.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | pub fn assemble(program: String) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `assemble_opcode` [INFO] [stderr] --> src/assembler/mod.rs:70:1 [INFO] [stderr] | [INFO] [stderr] 70 | fn assemble_opcode(opcode: &str, operand: &str) -> (u8, u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_register_number` [INFO] [stderr] --> src/assembler/mod.rs:80:1 [INFO] [stderr] | [INFO] [stderr] 80 | fn get_register_number(token: &str) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print_display` [INFO] [stderr] --> src/chip8/mod.rs:92:5 [INFO] [stderr] | [INFO] [stderr] 92 | pub fn print_display(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `high_nibble_from_byte` [INFO] [stderr] --> src/chip8/mod.rs:402:5 [INFO] [stderr] | [INFO] [stderr] 402 | fn high_nibble_from_byte(byte: u8) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `low_nibble_from_byte` [INFO] [stderr] --> src/chip8/mod.rs:406:5 [INFO] [stderr] | [INFO] [stderr] 406 | fn low_nibble_from_byte(byte: u8) -> u8 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: structure field `V` should have a snake case name [INFO] [stderr] --> src/chip8/mod.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | pub V: [u8; 16], [INFO] [stderr] | ^ help: convert the identifier to snake case: `v` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: structure field `I` should have a snake case name [INFO] [stderr] --> src/chip8/mod.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | pub I: u16, [INFO] [stderr] | ^ help: convert the identifier to snake case: `i` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:31:13 [INFO] [stderr] | [INFO] [stderr] 31 | io::stdin().read_line(&mut input); [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] Finished dev [unoptimized + debuginfo] target(s) in 28.39s [INFO] running `"docker" "inspect" "51472810f1b1bcba2aeee1d98c394742e51ec80f302ea4d834eabdd86142879e"` [INFO] running `"docker" "rm" "-f" "51472810f1b1bcba2aeee1d98c394742e51ec80f302ea4d834eabdd86142879e"` [INFO] [stdout] 51472810f1b1bcba2aeee1d98c394742e51ec80f302ea4d834eabdd86142879e