[INFO] crate hex2d 0.2.0 is already in cache
[INFO] extracting crate hex2d 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/hex2d/0.2.0
[INFO] extracting crate hex2d 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hex2d/0.2.0
[INFO] validating manifest of hex2d-0.2.0 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 hex2d-0.2.0 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 hex2d-0.2.0
[INFO] finished frobbing hex2d-0.2.0
[INFO] frobbed toml for hex2d-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/hex2d/0.2.0/Cargo.toml
[INFO] started frobbing hex2d-0.2.0
[INFO] finished frobbing hex2d-0.2.0
[INFO] frobbed toml for hex2d-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/hex2d/0.2.0/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 hex2d-0.2.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/hex2d/0.2.0:/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] 59d740a314e6c3bec5854456b4fd3902d94e9cc3852e320d38b27f3234aab38c
[INFO] running `"docker" "start" "-a" "59d740a314e6c3bec5854456b4fd3902d94e9cc3852e320d38b27f3234aab38c"`
[INFO] [stderr]     Checking hex2d v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |         Coordinate { 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/lib.rs:209:28
[INFO] [stderr]     |
[INFO] [stderr] 209 |         Coordinate { 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/lib.rs:388:21
[INFO] [stderr]     |
[INFO] [stderr] 388 |         Coordinate{ x: x, y: y }
[INFO] [stderr]     |                     ^^^^ help: replace it with: `x`
[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/lib.rs:388:27
[INFO] [stderr]     |
[INFO] [stderr] 388 |         Coordinate{ 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/lib.rs:417:21
[INFO] [stderr]     |
[INFO] [stderr] 417 |         Coordinate{ x: x, y: y}
[INFO] [stderr]     |                     ^^^^ help: replace it with: `x`
[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/lib.rs:417:27
[INFO] [stderr]     |
[INFO] [stderr] 417 |         Coordinate{ 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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:448:21
[INFO] [stderr]     |
[INFO] [stderr] 448 |                 let y = ay + (by - ay) * d;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:449:21
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 let c = Coordinate::from_round(x, y);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:477:21
[INFO] [stderr]     |
[INFO] [stderr] 477 |                 let y = ay + (by - ay) * d;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:478:21
[INFO] [stderr]     |
[INFO] [stderr] 478 |                 let c = Coordinate::from_round_lossy(x, y);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:508:21
[INFO] [stderr]     |
[INFO] [stderr] 508 |                 let y = ay + (by - ay) * d;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:875:19
[INFO] [stderr]     |
[INFO] [stderr] 875 |         Position{ coord: coord, dir: dir }
[INFO] [stderr]     |                   ^^^^^^^^^^^^ help: replace it with: `coord`
[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/lib.rs:875:33
[INFO] [stderr]     |
[INFO] [stderr] 875 |         Position{ coord: coord, dir: dir }
[INFO] [stderr]     |                                 ^^^^^^^^ help: replace it with: `dir`
[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/lib.rs:209:22
[INFO] [stderr]     |
[INFO] [stderr] 209 |         Coordinate { 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/lib.rs:209:28
[INFO] [stderr]     |
[INFO] [stderr] 209 |         Coordinate { 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/lib.rs:388:21
[INFO] [stderr]     |
[INFO] [stderr] 388 |         Coordinate{ x: x, y: y }
[INFO] [stderr]     |                     ^^^^ help: replace it with: `x`
[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/lib.rs:388:27
[INFO] [stderr]     |
[INFO] [stderr] 388 |         Coordinate{ 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/lib.rs:417:21
[INFO] [stderr]     |
[INFO] [stderr] 417 |         Coordinate{ x: x, y: y}
[INFO] [stderr]     |                     ^^^^ help: replace it with: `x`
[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/lib.rs:417:27
[INFO] [stderr]     |
[INFO] [stderr] 417 |         Coordinate{ 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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:448:21
[INFO] [stderr]     |
[INFO] [stderr] 448 |                 let y = ay + (by - ay) * d;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:449:21
[INFO] [stderr]     |
[INFO] [stderr] 449 |                 let c = Coordinate::from_round(x, y);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:477:21
[INFO] [stderr]     |
[INFO] [stderr] 477 |                 let y = ay + (by - ay) * d;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 6th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:478:21
[INFO] [stderr]     |
[INFO] [stderr] 478 |                 let c = Coordinate::from_round_lossy(x, y);
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/lib.rs:508:21
[INFO] [stderr]     |
[INFO] [stderr] 508 |                 let y = ay + (by - ay) * d;
[INFO] [stderr]     |                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:875:19
[INFO] [stderr]     |
[INFO] [stderr] 875 |         Position{ coord: coord, dir: dir }
[INFO] [stderr]     |                   ^^^^^^^^^^^^ help: replace it with: `coord`
[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/lib.rs:875:33
[INFO] [stderr]     |
[INFO] [stderr] 875 |         Position{ coord: coord, dir: dir }
[INFO] [stderr]     |                                 ^^^^^^^^ help: replace it with: `dir`
[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: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:297:17
[INFO] [stderr]     |
[INFO] [stderr] 297 |                 return Coordinate::nearest(q, -r -q);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Coordinate::nearest(q, -r -q)`
[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/lib.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 return Coordinate::nearest(q, -r -q);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Coordinate::nearest(q, -r -q)`
[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: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:509:53
[INFO] [stderr]     |
[INFO] [stderr] 509 |                 let c1 = Coordinate::from_round(x + 0.000001, y + 0.000001);
[INFO] [stderr]     |                                                     ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:509:67
[INFO] [stderr]     |
[INFO] [stderr] 509 |                 let c1 = Coordinate::from_round(x + 0.000001, y + 0.000001);
[INFO] [stderr]     |                                                                   ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:510:53
[INFO] [stderr]     |
[INFO] [stderr] 510 |                 let c2 = Coordinate::from_round(x - 0.000001, y - 0.000001);
[INFO] [stderr]     |                                                     ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:510:67
[INFO] [stderr]     |
[INFO] [stderr] 510 |                 let c2 = Coordinate::from_round(x - 0.000001, y - 0.000001);
[INFO] [stderr]     |                                                                   ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::Spacing::*`
[INFO] [stderr]  --> src/test.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use super::Spacing::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:297:17
[INFO] [stderr]     |
[INFO] [stderr] 297 |                 return Coordinate::nearest(q, -r -q);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Coordinate::nearest(q, -r -q)`
[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/lib.rs:302:17
[INFO] [stderr]     |
[INFO] [stderr] 302 |                 return Coordinate::nearest(q, -r -q);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Coordinate::nearest(q, -r -q)`
[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: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:509:53
[INFO] [stderr]     |
[INFO] [stderr] 509 |                 let c1 = Coordinate::from_round(x + 0.000001, y + 0.000001);
[INFO] [stderr]     |                                                     ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:509:67
[INFO] [stderr]     |
[INFO] [stderr] 509 |                 let c1 = Coordinate::from_round(x + 0.000001, y + 0.000001);
[INFO] [stderr]     |                                                                   ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:510:53
[INFO] [stderr]     |
[INFO] [stderr] 510 |                 let c2 = Coordinate::from_round(x - 0.000001, y - 0.000001);
[INFO] [stderr]     |                                                     ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/lib.rs:510:67
[INFO] [stderr]     |
[INFO] [stderr] 510 |                 let c2 = Coordinate::from_round(x - 0.000001, y - 0.000001);
[INFO] [stderr]     |                                                                   ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Float`
[INFO] [stderr]   --> src/lib.rs:68:11
[INFO] [stderr]    |
[INFO] [stderr] 68 | use num::{Float, One, Zero};
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:958:16
[INFO] [stderr]     |
[INFO] [stderr] 958 |     pub fn arc(&self, steps : u8) -> Vec<Direction> {
[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/lib.rs:985:32
[INFO] [stderr]     |
[INFO] [stderr] 985 |     pub fn to_int<I : Integer>(&self) -> I {
[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/lib.rs:1062:32
[INFO] [stderr]      |
[INFO] [stderr] 1062 |     pub fn to_int<I : Integer>(&self) -> I {
[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: unused import: `Float`
[INFO] [stderr]   --> src/lib.rs:68:11
[INFO] [stderr]    |
[INFO] [stderr] 68 | use num::{Float, One, Zero};
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 30
[INFO] [stderr]    --> src/test.rs:127:22
[INFO] [stderr]     |
[INFO] [stderr] 127 |       with_test_points(|c : Coordinate| {
[INFO] [stderr]     |  ______________________^
[INFO] [stderr] 128 | |         for &d in Direction::all().iter() {
[INFO] [stderr] 129 | |             {
[INFO] [stderr] 130 | |                 // CW r0
[INFO] [stderr] ...   |
[INFO] [stderr] 187 | |         }
[INFO] [stderr] 188 | |     })
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:958:16
[INFO] [stderr]     |
[INFO] [stderr] 958 |     pub fn arc(&self, steps : u8) -> Vec<Direction> {
[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/lib.rs:985:32
[INFO] [stderr]     |
[INFO] [stderr] 985 |     pub fn to_int<I : Integer>(&self) -> I {
[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/lib.rs:1062:32
[INFO] [stderr]      |
[INFO] [stderr] 1062 |     pub fn to_int<I : Integer>(&self) -> I {
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `"docker" "inspect" "59d740a314e6c3bec5854456b4fd3902d94e9cc3852e320d38b27f3234aab38c"`
[INFO] running `"docker" "rm" "-f" "59d740a314e6c3bec5854456b4fd3902d94e9cc3852e320d38b27f3234aab38c"`
[INFO] [stdout] 59d740a314e6c3bec5854456b4fd3902d94e9cc3852e320d38b27f3234aab38c