[INFO] updating cached repository michaelsergio/chip8-emulator [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/michaelsergio/chip8-emulator [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/michaelsergio/chip8-emulator" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/michaelsergio/chip8-emulator"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/michaelsergio/chip8-emulator'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/michaelsergio/chip8-emulator" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/michaelsergio/chip8-emulator"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/michaelsergio/chip8-emulator'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] bf67d3135609333365177545addf06ec5324b311 [INFO] sha for GitHub repo michaelsergio/chip8-emulator: bf67d3135609333365177545addf06ec5324b311 [INFO] validating manifest of michaelsergio/chip8-emulator on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of michaelsergio/chip8-emulator on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing michaelsergio/chip8-emulator [INFO] finished frobbing michaelsergio/chip8-emulator [INFO] frobbed toml for michaelsergio/chip8-emulator written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/michaelsergio/chip8-emulator/Cargo.toml [INFO] started frobbing michaelsergio/chip8-emulator [INFO] finished frobbing michaelsergio/chip8-emulator [INFO] frobbed toml for michaelsergio/chip8-emulator written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/michaelsergio/chip8-emulator/Cargo.toml [INFO] crate michaelsergio/chip8-emulator already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking michaelsergio/chip8-emulator against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/michaelsergio/chip8-emulator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 6afa02459e85e7983c1af3658bae64a17654d901bc22487997ee4fc851dcd241 [INFO] running `"docker" "start" "-a" "6afa02459e85e7983c1af3658bae64a17654d901bc22487997ee4fc851dcd241"` [INFO] [stderr] Checking chip8 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/chip8/mod.rs:75:20 [INFO] [stderr] | [INFO] [stderr] 75 | if (self.v[v_x] == byte) { [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 `if` condition [INFO] [stderr] --> src/chip8/mod.rs:80:20 [INFO] [stderr] | [INFO] [stderr] 80 | if (self.v[v_x] != byte) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/chip8/mod.rs:85:20 [INFO] [stderr] | [INFO] [stderr] 85 | if (self.v[v_x] == self.v[v_y]) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/chip8/mod.rs:75:20 [INFO] [stderr] | [INFO] [stderr] 75 | if (self.v[v_x] == byte) { [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 `if` condition [INFO] [stderr] --> src/chip8/mod.rs:80:20 [INFO] [stderr] | [INFO] [stderr] 80 | if (self.v[v_x] != byte) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/chip8/mod.rs:85:20 [INFO] [stderr] | [INFO] [stderr] 85 | if (self.v[v_x] == self.v[v_y]) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/main.rs:76:17 [INFO] [stderr] | [INFO] [stderr] 76 | let val = chip8.memory[DISPLAY + i]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_val` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:77:17 [INFO] [stderr] | [INFO] [stderr] 77 | for z in 0..4 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/main.rs:76:17 [INFO] [stderr] | [INFO] [stderr] 76 | let val = chip8.memory[DISPLAY + i]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_val` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:77:17 [INFO] [stderr] | [INFO] [stderr] 77 | for z in 0..4 { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `DATA` [INFO] [stderr] --> src/chip8/mod.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | pub const DATA: usize = 0x200; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `DISPLAY` [INFO] [stderr] --> src/chip8/mod.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | pub const DISPLAY: usize = 0xF00; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `CALLSTACK` [INFO] [stderr] --> src/chip8/mod.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | pub const CALLSTACK: usize = 0xEA0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `ROWS` [INFO] [stderr] --> src/chip8/mod.rs:16:1 [INFO] [stderr] | [INFO] [stderr] 16 | pub const ROWS:usize = 32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `COLS` [INFO] [stderr] --> src/chip8/mod.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | pub const COLS:usize = 64; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `ECHO_SOUND` [INFO] [stderr] --> src/chip8/mod.rs:19:1 [INFO] [stderr] | [INFO] [stderr] 19 | pub const ECHO_SOUND: char = 7 as char; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `ret` [INFO] [stderr] --> src/chip8/mod.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | pub fn ret(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `jump` [INFO] [stderr] --> src/chip8/mod.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | pub fn jump(&mut self, nnn: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `se_byte` [INFO] [stderr] --> src/chip8/mod.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | pub fn se_byte(&mut self, v_x: usize, byte: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sne` [INFO] [stderr] --> src/chip8/mod.rs:79:9 [INFO] [stderr] | [INFO] [stderr] 79 | pub fn sne(&mut self, v_x: usize, byte: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `se_reg` [INFO] [stderr] --> src/chip8/mod.rs:84:9 [INFO] [stderr] | [INFO] [stderr] 84 | pub fn se_reg(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add` [INFO] [stderr] --> src/chip8/mod.rs:94:9 [INFO] [stderr] | [INFO] [stderr] 94 | pub fn add(&mut self, v_x: usize, kk: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_reg` [INFO] [stderr] --> src/chip8/mod.rs:98:9 [INFO] [stderr] | [INFO] [stderr] 98 | pub fn load_reg(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `or` [INFO] [stderr] --> src/chip8/mod.rs:102:9 [INFO] [stderr] | [INFO] [stderr] 102 | pub fn or(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `and` [INFO] [stderr] --> src/chip8/mod.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | pub fn and(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `xor` [INFO] [stderr] --> src/chip8/mod.rs:108:9 [INFO] [stderr] | [INFO] [stderr] 108 | pub fn xor(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sub_with_borrow` [INFO] [stderr] --> src/chip8/mod.rs:123:9 [INFO] [stderr] | [INFO] [stderr] 123 | pub fn sub_with_borrow(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `debug_screen` [INFO] [stderr] --> src/main.rs:72:1 [INFO] [stderr] | [INFO] [stderr] 72 | fn debug_screen(chip8: &Chip8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `draw` [INFO] [stderr] --> src/main.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn draw(chip8: &Chip8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `DATA` [INFO] [stderr] --> src/chip8/mod.rs:10:1 [INFO] [stderr] | [INFO] [stderr] 10 | pub const DATA: usize = 0x200; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `DISPLAY` [INFO] [stderr] --> src/chip8/mod.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | pub const DISPLAY: usize = 0xF00; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `CALLSTACK` [INFO] [stderr] --> src/chip8/mod.rs:12:1 [INFO] [stderr] | [INFO] [stderr] 12 | pub const CALLSTACK: usize = 0xEA0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `ROWS` [INFO] [stderr] --> src/chip8/mod.rs:16:1 [INFO] [stderr] | [INFO] [stderr] 16 | pub const ROWS:usize = 32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `COLS` [INFO] [stderr] --> src/chip8/mod.rs:17:1 [INFO] [stderr] | [INFO] [stderr] 17 | pub const COLS:usize = 64; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `ECHO_SOUND` [INFO] [stderr] --> src/chip8/mod.rs:19:1 [INFO] [stderr] | [INFO] [stderr] 19 | pub const ECHO_SOUND: char = 7 as char; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `ret` [INFO] [stderr] --> src/chip8/mod.rs:67:9 [INFO] [stderr] | [INFO] [stderr] 67 | pub fn ret(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `jump` [INFO] [stderr] --> src/chip8/mod.rs:71:9 [INFO] [stderr] | [INFO] [stderr] 71 | pub fn jump(&mut self, nnn: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `se_byte` [INFO] [stderr] --> src/chip8/mod.rs:74:9 [INFO] [stderr] | [INFO] [stderr] 74 | pub fn se_byte(&mut self, v_x: usize, byte: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sne` [INFO] [stderr] --> src/chip8/mod.rs:79:9 [INFO] [stderr] | [INFO] [stderr] 79 | pub fn sne(&mut self, v_x: usize, byte: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `se_reg` [INFO] [stderr] --> src/chip8/mod.rs:84:9 [INFO] [stderr] | [INFO] [stderr] 84 | pub fn se_reg(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `add` [INFO] [stderr] --> src/chip8/mod.rs:94:9 [INFO] [stderr] | [INFO] [stderr] 94 | pub fn add(&mut self, v_x: usize, kk: u8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `load_reg` [INFO] [stderr] --> src/chip8/mod.rs:98:9 [INFO] [stderr] | [INFO] [stderr] 98 | pub fn load_reg(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `or` [INFO] [stderr] --> src/chip8/mod.rs:102:9 [INFO] [stderr] | [INFO] [stderr] 102 | pub fn or(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `and` [INFO] [stderr] --> src/chip8/mod.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | pub fn and(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `xor` [INFO] [stderr] --> src/chip8/mod.rs:108:9 [INFO] [stderr] | [INFO] [stderr] 108 | pub fn xor(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `sub_with_borrow` [INFO] [stderr] --> src/chip8/mod.rs:123:9 [INFO] [stderr] | [INFO] [stderr] 123 | pub fn sub_with_borrow(&mut self, v_x: usize, v_y: usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `debug_screen` [INFO] [stderr] --> src/main.rs:72:1 [INFO] [stderr] | [INFO] [stderr] 72 | fn debug_screen(chip8: &Chip8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `draw` [INFO] [stderr] --> src/main.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | fn draw(chip8: &Chip8) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0422]: cannot find struct, variant or union type `Chip8` in this scope [INFO] [stderr] --> tests/ops.rs:13:25 [INFO] [stderr] | [INFO] [stderr] 13 | let mut chip8 = Chip8 { [INFO] [stderr] | ^^^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> tests/ops.rs:3:9 [INFO] [stderr] | [INFO] [stderr] 3 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0422`. [INFO] [stderr] error: Could not compile `chip8`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "6afa02459e85e7983c1af3658bae64a17654d901bc22487997ee4fc851dcd241"` [INFO] running `"docker" "rm" "-f" "6afa02459e85e7983c1af3658bae64a17654d901bc22487997ee4fc851dcd241"` [INFO] [stdout] 6afa02459e85e7983c1af3658bae64a17654d901bc22487997ee4fc851dcd241