[INFO] crate game-of-life-parsers 2.0.1 is already in cache [INFO] extracting crate game-of-life-parsers 2.0.1 into work/ex/clippy-test-run/sources/stable/reg/game-of-life-parsers/2.0.1 [INFO] extracting crate game-of-life-parsers 2.0.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/game-of-life-parsers/2.0.1 [INFO] validating manifest of game-of-life-parsers-2.0.1 on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of game-of-life-parsers-2.0.1 on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing game-of-life-parsers-2.0.1 [INFO] finished frobbing game-of-life-parsers-2.0.1 [INFO] frobbed toml for game-of-life-parsers-2.0.1 written to work/ex/clippy-test-run/sources/stable/reg/game-of-life-parsers/2.0.1/Cargo.toml [INFO] started frobbing game-of-life-parsers-2.0.1 [INFO] finished frobbing game-of-life-parsers-2.0.1 [INFO] frobbed toml for game-of-life-parsers-2.0.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/game-of-life-parsers/2.0.1/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] linting game-of-life-parsers-2.0.1 against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/game-of-life-parsers/2.0.1:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] bd40a56d1f04619f1f5649e183b9322b683afbd94b597177065703c4f9eea643 [INFO] running `"docker" "start" "-a" "bd40a56d1f04619f1f5649e183b9322b683afbd94b597177065703c4f9eea643"` [INFO] [stderr] Checking io-test-util v0.1.0 [INFO] [stderr] Checking error-chain v0.11.0 [INFO] [stderr] Checking game-of-life-parsers v2.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/default_game_descriptor.rs:33:31 [INFO] [stderr] | [INFO] [stderr] 33 | self.live_cells.push(Coord{ x: x, y: y }); [INFO] [stderr] | ^^^^ help: replace it with: `x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/default_game_descriptor.rs:33:37 [INFO] [stderr] | [INFO] [stderr] 33 | self.live_cells.push(Coord{ x: x, y: y }); [INFO] [stderr] | ^^^^ help: replace it with: `y` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/default_game_descriptor.rs:33:31 [INFO] [stderr] | [INFO] [stderr] 33 | self.live_cells.push(Coord{ x: x, y: y }); [INFO] [stderr] | ^^^^ help: replace it with: `x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::redundant_field_names)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: redundant field names in struct initialization [INFO] [stderr] --> src/default_game_descriptor.rs:33:37 [INFO] [stderr] | [INFO] [stderr] 33 | self.live_cells.push(Coord{ x: x, y: y }); [INFO] [stderr] | ^^^^ help: replace it with: `y` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names [INFO] [stderr] [INFO] [stderr] warning: you should consider deriving a `Default` implementation for `parsers::life_1_05_parser::Life105Parser` [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:13:2 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn new() -> Self { [INFO] [stderr] | _____^ [INFO] [stderr] 14 | | Life105Parser{} [INFO] [stderr] 15 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::new_without_default_derive)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 9 | #[derive(Default)] [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:30:7 [INFO] [stderr] | [INFO] [stderr] 30 | if line.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::len_zero)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:47:45 [INFO] [stderr] | [INFO] [stderr] 47 | let index_with_offset = index as i32 + ox as i32; [INFO] [stderr] | ^^^^^^^^^ help: try: `i32::from(ox)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:48:29 [INFO] [stderr] | [INFO] [stderr] 48 | if index_with_offset > i16::MAX as i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: try: `i32::from(i16::MAX)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:51:38 [INFO] [stderr] | [INFO] [stderr] 51 | let line_in_block_with_offset = line_in_block as i32 + oy as i32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from(line_in_block)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:51:61 [INFO] [stderr] | [INFO] [stderr] 51 | let line_in_block_with_offset = line_in_block as i32 + oy as i32; [INFO] [stderr] | ^^^^^^^^^ help: try: `i32::from(oy)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:52:37 [INFO] [stderr] | [INFO] [stderr] 52 | if line_in_block_with_offset > i16::MAX as i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: try: `i32::from(i16::MAX)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: single-character string constant used as pattern [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:62:31 [INFO] [stderr] | [INFO] [stderr] 62 | } else if line.starts_with("#") { [INFO] [stderr] | ^^^ help: try using a char instead: `'#'` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::single_char_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:156:4 [INFO] [stderr] | [INFO] [stderr] 156 | Err(_) => panic!("Wrong error thrown!"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_wild_err_arm)] on by default [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: calling `as_bytes()` on a string literal [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:172:34 [INFO] [stderr] | [INFO] [stderr] 172 | let gd = parser.parse(Box::new("#N".as_bytes())).unwrap(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"#N"` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::string_lit_as_bytes)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:186:4 [INFO] [stderr] | [INFO] [stderr] 186 | Err(_) => panic!("Wrong error returned!"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: calling `as_bytes()` on a string literal [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:207:15 [INFO] [stderr] | [INFO] [stderr] 207 | let input = "#P 0 a".as_bytes(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"#P 0 a"` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:210:4 [INFO] [stderr] | [INFO] [stderr] 210 | Err(_) => panic!("Wrong error thrown!"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:219:4 [INFO] [stderr] | [INFO] [stderr] 219 | Err(_) => panic!("Wrong error thrown!"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: calling `as_bytes()` on a string literal [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:261:24 [INFO] [stderr] | [INFO] [stderr] 261 | let input = Box::new("this is not a life file".as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"this is not a life file"` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes [INFO] [stderr] [INFO] [stderr] warning: you should consider deriving a `Default` implementation for `parsers::life_1_06_parser::Life106Parser` [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:13:2 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn new() -> Self { [INFO] [stderr] | _____^ [INFO] [stderr] 14 | | Life106Parser{} [INFO] [stderr] 15 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 9 | #[derive(Default)] [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:31:7 [INFO] [stderr] | [INFO] [stderr] 31 | if line.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: single-character string constant used as pattern [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:43:31 [INFO] [stderr] | [INFO] [stderr] 43 | } else if line.starts_with("#") { [INFO] [stderr] | ^^^ help: try using a char instead: `'#'` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern [INFO] [stderr] [INFO] [stderr] warning: you should consider deriving a `Default` implementation for `parsers::life_1_05_parser::Life105Parser` [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:13:2 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn new() -> Self { [INFO] [stderr] | _____^ [INFO] [stderr] 14 | | Life105Parser{} [INFO] [stderr] 15 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::new_without_default_derive)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 9 | #[derive(Default)] [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:83:4 [INFO] [stderr] | [INFO] [stderr] 83 | Err(_) => panic!("Wrong error returned!"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:30:7 [INFO] [stderr] | [INFO] [stderr] 30 | if line.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::len_zero)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:47:45 [INFO] [stderr] | [INFO] [stderr] 47 | let index_with_offset = index as i32 + ox as i32; [INFO] [stderr] | ^^^^^^^^^ help: try: `i32::from(ox)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:48:29 [INFO] [stderr] | [INFO] [stderr] 48 | if index_with_offset > i16::MAX as i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: try: `i32::from(i16::MAX)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: calling `as_bytes()` on a string literal [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:104:24 [INFO] [stderr] | [INFO] [stderr] 104 | let input = Box::new("32768 0".as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"32768 0"` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes [INFO] [stderr] [INFO] [stderr] warning: Err(_) will match all errors, maybe not a good idea [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:107:4 [INFO] [stderr] | [INFO] [stderr] 107 | Err(_) => panic!("Wrong error thrown!"), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to remove this warning, match each error separately or use unreachable macro [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:51:38 [INFO] [stderr] | [INFO] [stderr] 51 | let line_in_block_with_offset = line_in_block as i32 + oy as i32; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from(line_in_block)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:51:61 [INFO] [stderr] | [INFO] [stderr] 51 | let line_in_block_with_offset = line_in_block as i32 + oy as i32; [INFO] [stderr] | ^^^^^^^^^ help: try: `i32::from(oy)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i16 to i32 may become silently lossy if types change [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:52:37 [INFO] [stderr] | [INFO] [stderr] 52 | if line_in_block_with_offset > i16::MAX as i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: try: `i32::from(i16::MAX)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: single-character string constant used as pattern [INFO] [stderr] --> src/parsers/life_1_05_parser.rs:62:31 [INFO] [stderr] | [INFO] [stderr] 62 | } else if line.starts_with("#") { [INFO] [stderr] | ^^^ help: try using a char instead: `'#'` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::single_char_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern [INFO] [stderr] [INFO] [stderr] warning: you should consider deriving a `Default` implementation for `parsers::life_1_06_parser::Life106Parser` [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:13:2 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn new() -> Self { [INFO] [stderr] | _____^ [INFO] [stderr] 14 | | Life106Parser{} [INFO] [stderr] 15 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive [INFO] [stderr] help: try this [INFO] [stderr] | [INFO] [stderr] 9 | #[derive(Default)] [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: length comparison to zero [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:31:7 [INFO] [stderr] | [INFO] [stderr] 31 | if line.len() == 0 { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `line.is_empty()` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero [INFO] [stderr] [INFO] [stderr] warning: single-character string constant used as pattern [INFO] [stderr] --> src/parsers/life_1_06_parser.rs:43:31 [INFO] [stderr] | [INFO] [stderr] 43 | } else if line.starts_with("#") { [INFO] [stderr] | ^^^ help: try using a char instead: `'#'` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.15s [INFO] running `"docker" "inspect" "bd40a56d1f04619f1f5649e183b9322b683afbd94b597177065703c4f9eea643"` [INFO] running `"docker" "rm" "-f" "bd40a56d1f04619f1f5649e183b9322b683afbd94b597177065703c4f9eea643"` [INFO] [stdout] bd40a56d1f04619f1f5649e183b9322b683afbd94b597177065703c4f9eea643