[INFO] updating cached repository nielsutrecht/adventofrust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nielsutrecht/adventofrust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nielsutrecht/adventofrust" "work/ex/clippy-test-run/sources/stable/gh/nielsutrecht/adventofrust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/nielsutrecht/adventofrust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nielsutrecht/adventofrust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nielsutrecht/adventofrust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nielsutrecht/adventofrust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd42a28d86550e5c4dc4fd9c5cc5cf4cbe1fd5d7
[INFO] sha for GitHub repo nielsutrecht/adventofrust: bd42a28d86550e5c4dc4fd9c5cc5cf4cbe1fd5d7
[INFO] validating manifest of nielsutrecht/adventofrust 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 nielsutrecht/adventofrust 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 nielsutrecht/adventofrust
[INFO] finished frobbing nielsutrecht/adventofrust
[INFO] frobbed toml for nielsutrecht/adventofrust written to work/ex/clippy-test-run/sources/stable/gh/nielsutrecht/adventofrust/Cargo.toml
[INFO] started frobbing nielsutrecht/adventofrust
[INFO] finished frobbing nielsutrecht/adventofrust
[INFO] frobbed toml for nielsutrecht/adventofrust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nielsutrecht/adventofrust/Cargo.toml
[INFO] crate nielsutrecht/adventofrust has a lockfile. skipping
[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 nielsutrecht/adventofrust against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nielsutrecht/adventofrust:/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 -Dclippy::into_iter_on_array" "-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] 63c0bf9c55aa0df854225a03e98f44647c97b1dcb684c63bde07e307dedb5431
[INFO] running `"docker" "start" "-a" "63c0bf9c55aa0df854225a03e98f44647c97b1dcb684c63bde07e307dedb5431"`
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]  --> src/io/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | /     return read_to_string(file_name(year, day))
[INFO] [stderr] 8 | |         .expect("Something went wrong reading the file");
[INFO] [stderr]   | |_________________________________________________________^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]   |
[INFO] [stderr] 7 |     read_to_string(file_name(year, day))
[INFO] [stderr] 8 |         .expect("Something went wrong reading the file")
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/io/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     return buf.lines()
[INFO] [stderr] 16 | |         .map(|l| l.expect("Could not parse line"))
[INFO] [stderr] 17 | |         .collect();
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 15 |     buf.lines()
[INFO] [stderr] 16 |         .map(|l| l.expect("Could not parse line"))
[INFO] [stderr] 17 |         .collect()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/convert/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     return vec;
[INFO] [stderr]    |     ^^^^^^^^^^^ help: remove `return` as shown: `vec`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/convert/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     return v.into_iter()
[INFO] [stderr] 15 | |         .map(|s| {
[INFO] [stderr] 16 | |             s.split_whitespace()
[INFO] [stderr] 17 | |                 .into_iter()
[INFO] [stderr] 18 | |                 .map(|e | e.parse::<i32>().expect("Parse error"))
[INFO] [stderr] 19 | |                 .collect()
[INFO] [stderr] 20 | |         }).collect()
[INFO] [stderr]    | |____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 14 |     v.into_iter()
[INFO] [stderr] 15 |         .map(|s| {
[INFO] [stderr] 16 |             s.split_whitespace()
[INFO] [stderr] 17 |                 .into_iter()
[INFO] [stderr] 18 |                 .map(|e | e.parse::<i32>().expect("Parse error"))
[INFO] [stderr] 19 |                 .collect()
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/convert/mod.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     return out
[INFO] [stderr]    |     ^^^^^^^^^^ help: remove `return` as shown: `out`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         return Point::new(self.x + x, self.y + y);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Point::new(self.x + x, self.y + y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return self.x >= min_x && self.x <= max_x && self.y >= min_y && self.y <= max_y;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.x >= min_x && self.x <= max_x && self.y >= min_y && self.y <= max_y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         return (self.x - other.x).abs() + (self.y - other.y).abs()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(self.x - other.x).abs() + (self.y - other.y).abs()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 | /         return match direction {
[INFO] [stderr] 45 | |             DirectionCompass::N => self.add(0, -1),
[INFO] [stderr] 46 | |             DirectionCompass::E => self.add(1, 0),
[INFO] [stderr] 47 | |             DirectionCompass::S => self.add(0, 1),
[INFO] [stderr] 48 | |             DirectionCompass::W => self.add(-1, 0)
[INFO] [stderr] 49 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 44 |         match direction {
[INFO] [stderr] 45 |             DirectionCompass::N => self.add(0, -1),
[INFO] [stderr] 46 |             DirectionCompass::E => self.add(1, 0),
[INFO] [stderr] 47 |             DirectionCompass::S => self.add(0, 1),
[INFO] [stderr] 48 |             DirectionCompass::W => self.add(-1, 0)
[INFO] [stderr] 49 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         return Point::new(self.x + _rhs.x, self.y + _rhs.y);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Point::new(self.x + _rhs.x, self.y + _rhs.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         return Point::new(self.x - _rhs.x, self.y - _rhs.y);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Point::new(self.x - _rhs.x, self.y - _rhs.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]  --> src/io/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | /     return read_to_string(file_name(year, day))
[INFO] [stderr] 8 | |         .expect("Something went wrong reading the file");
[INFO] [stderr]   | |_________________________________________________________^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]   |
[INFO] [stderr] 7 |     read_to_string(file_name(year, day))
[INFO] [stderr] 8 |         .expect("Something went wrong reading the file")
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/io/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | /     return buf.lines()
[INFO] [stderr] 16 | |         .map(|l| l.expect("Could not parse line"))
[INFO] [stderr] 17 | |         .collect();
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 15 |     buf.lines()
[INFO] [stderr] 16 |         .map(|l| l.expect("Could not parse line"))
[INFO] [stderr] 17 |         .collect()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/convert/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     return vec;
[INFO] [stderr]    |     ^^^^^^^^^^^ help: remove `return` as shown: `vec`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/convert/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     return v.into_iter()
[INFO] [stderr] 15 | |         .map(|s| {
[INFO] [stderr] 16 | |             s.split_whitespace()
[INFO] [stderr] 17 | |                 .into_iter()
[INFO] [stderr] 18 | |                 .map(|e | e.parse::<i32>().expect("Parse error"))
[INFO] [stderr] 19 | |                 .collect()
[INFO] [stderr] 20 | |         }).collect()
[INFO] [stderr]    | |____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 14 |     v.into_iter()
[INFO] [stderr] 15 |         .map(|s| {
[INFO] [stderr] 16 |             s.split_whitespace()
[INFO] [stderr] 17 |                 .into_iter()
[INFO] [stderr] 18 |                 .map(|e | e.parse::<i32>().expect("Parse error"))
[INFO] [stderr] 19 |                 .collect()
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/convert/mod.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     return out
[INFO] [stderr]    |     ^^^^^^^^^^ help: remove `return` as shown: `out`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: this is a decimal constant
[INFO] [stderr]   --> src/convert/mod.rs:54:33
[INFO] [stderr]    |
[INFO] [stderr] 54 |         assert_eq!(-123, result[01][1]);
[INFO] [stderr]    |                                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::zero_prefixed_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#zero_prefixed_literal
[INFO] [stderr] help: if you mean to use a decimal constant, remove the `0` to remove confusion
[INFO] [stderr]    |
[INFO] [stderr] 54 |         assert_eq!(-123, result[1][1]);
[INFO] [stderr]    |                                 ^
[INFO] [stderr] help: if you mean to use an octal constant, use `0o`
[INFO] [stderr]    |
[INFO] [stderr] 54 |         assert_eq!(-123, result[0o1][1]);
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         return Point::new(self.x + x, self.y + y);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Point::new(self.x + x, self.y + y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return self.x >= min_x && self.x <= max_x && self.y >= min_y && self.y <= max_y;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.x >= min_x && self.x <= max_x && self.y >= min_y && self.y <= max_y`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         return (self.x - other.x).abs() + (self.y - other.y).abs()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(self.x - other.x).abs() + (self.y - other.y).abs()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 | /         return match direction {
[INFO] [stderr] 45 | |             DirectionCompass::N => self.add(0, -1),
[INFO] [stderr] 46 | |             DirectionCompass::E => self.add(1, 0),
[INFO] [stderr] 47 | |             DirectionCompass::S => self.add(0, 1),
[INFO] [stderr] 48 | |             DirectionCompass::W => self.add(-1, 0)
[INFO] [stderr] 49 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 44 |         match direction {
[INFO] [stderr] 45 |             DirectionCompass::N => self.add(0, -1),
[INFO] [stderr] 46 |             DirectionCompass::E => self.add(1, 0),
[INFO] [stderr] 47 |             DirectionCompass::S => self.add(0, 1),
[INFO] [stderr] 48 |             DirectionCompass::W => self.add(-1, 0)
[INFO] [stderr] 49 |         }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |         return Point::new(self.x + _rhs.x, self.y + _rhs.y);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Point::new(self.x + _rhs.x, self.y + _rhs.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         return Point::new(self.x - _rhs.x, self.y - _rhs.y);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Point::new(self.x - _rhs.x, self.y - _rhs.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/calc/point.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 |         return super::Point::new(x, y);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `super::Point::new(x, y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `origin`
[INFO] [stderr]   --> src/calc/point.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn origin() -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/calc/point.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn add(&self, x: i32, y: i32) -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `within_points`
[INFO] [stderr]   --> src/calc/point.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn within_points(&self, a: Point, b: Point) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `manhattan`
[INFO] [stderr]   --> src/calc/point.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn manhattan(&self, other: Point) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_direction`
[INFO] [stderr]   --> src/calc/point.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn add_direction(&self, direction: DirectionCompass) -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rotate90`
[INFO] [stderr]   --> src/calc/point.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn rotate90(&self) -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/convert/mod.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 | /             s.split_whitespace()
[INFO] [stderr] 17 | |                 .into_iter()
[INFO] [stderr]    | |____________________________^ help: consider removing `.into_iter()`: `s.split_whitespace()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn add(&self, x: i32, y: i32) -> Point {
[INFO] [stderr]    |            ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn within_points(&self, a: Point, b: Point) -> bool {
[INFO] [stderr]    |                      ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn manhattan(&self, other: Point) -> i32 {
[INFO] [stderr]    |                  ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn add_direction(&self, direction: DirectionCompass) -> Point {
[INFO] [stderr]    |                      ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn rotate90(&self) -> Point {
[INFO] [stderr]    |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         return (lowest, highest);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(lowest, highest)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return 0;
[INFO] [stderr]    |         ^^^^^^^^^ help: remove `return` as shown: `0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         return Day1702 { sheet };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1702 { sheet }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return x.to_string();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `x.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         return x.to_string();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `x.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         return sum.to_string();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `sum.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         return Day1701 { digits };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1701 { digits }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return Day1701::solve(&self.digits, part_1)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1701::solve(&self.digits, part_1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         return Day1701::solve(&self.digits, part_2)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1701::solve(&self.digits, part_2)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day1701.rs:12:25
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn solve<F>(digits: &Vec<u32>, f: F) -> String where F: Fn(usize) -> usize {
[INFO] [stderr]    |                         ^^^^^^^^^ help: change this to: `&[u32]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: identical conversion
[INFO] [stderr]   --> src/convert/mod.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 | /             s.split_whitespace()
[INFO] [stderr] 17 | |                 .into_iter()
[INFO] [stderr]    | |____________________________^ help: consider removing `.into_iter()`: `s.split_whitespace()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_conversion)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_conversion
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn add(&self, x: i32, y: i32) -> Point {
[INFO] [stderr]    |            ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:30:22
[INFO] [stderr]    |
[INFO] [stderr] 30 |     fn within_points(&self, a: Point, b: Point) -> bool {
[INFO] [stderr]    |                      ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:39:18
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn manhattan(&self, other: Point) -> i32 {
[INFO] [stderr]    |                  ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:43:22
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn add_direction(&self, direction: DirectionCompass) -> Point {
[INFO] [stderr]    |                      ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/calc/point.rs:52:17
[INFO] [stderr]    |
[INFO] [stderr] 52 |     fn rotate90(&self) -> Point {
[INFO] [stderr]    |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         return (lowest, highest);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(lowest, highest)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return 0;
[INFO] [stderr]    |         ^^^^^^^^^ help: remove `return` as shown: `0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         return Day1702 { sheet };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1702 { sheet }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return x.to_string();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `x.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1702.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |         return x.to_string();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `x.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:19:24
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Ok(num) => return num,
[INFO] [stderr]    |                        ^^^^^^^^^^ help: remove `return` as shown: `num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:20:23
[INFO] [stderr]    |
[INFO] [stderr] 20 |             Err(_) => return 0,
[INFO] [stderr]    |                       ^^^^^^^^ help: remove `return` as shown: `0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         return 0
[INFO] [stderr]    |         ^^^^^^^^ help: remove `return` as shown: `0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:19:24
[INFO] [stderr]    |
[INFO] [stderr] 19 |             Ok(num) => return num,
[INFO] [stderr]    |                        ^^^^^^^^^^ help: remove `return` as shown: `num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:20:23
[INFO] [stderr]    |
[INFO] [stderr] 20 |             Err(_) => return 0,
[INFO] [stderr]    |                       ^^^^^^^^ help: remove `return` as shown: `0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         return 0
[INFO] [stderr]    |         ^^^^^^^^ help: remove `return` as shown: `0`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         return sum.to_string();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `sum.to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         return Day1701 { digits };
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1701 { digits }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return Day1701::solve(&self.digits, part_1)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1701::solve(&self.digits, part_1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/bin/day1701.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         return Day1701::solve(&self.digits, part_2)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Day1701::solve(&self.digits, part_2)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/bin/day1701.rs:12:25
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fn solve<F>(digits: &Vec<u32>, f: F) -> String where F: Fn(usize) -> usize {
[INFO] [stderr]    |                         ^^^^^^^^^ help: change this to: `&[u32]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "63c0bf9c55aa0df854225a03e98f44647c97b1dcb684c63bde07e307dedb5431"`
[INFO] running `"docker" "rm" "-f" "63c0bf9c55aa0df854225a03e98f44647c97b1dcb684c63bde07e307dedb5431"`
[INFO] [stdout] 63c0bf9c55aa0df854225a03e98f44647c97b1dcb684c63bde07e307dedb5431