[INFO] updating cached repository stardisblue/rust-eternity [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/stardisblue/rust-eternity [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/stardisblue/rust-eternity" "work/ex/clippy-test-run/sources/stable/gh/stardisblue/rust-eternity"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/stardisblue/rust-eternity'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/stardisblue/rust-eternity" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/stardisblue/rust-eternity"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/stardisblue/rust-eternity'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7220fc1abcc5535d98fb4c84f317db8ff54b306c [INFO] sha for GitHub repo stardisblue/rust-eternity: 7220fc1abcc5535d98fb4c84f317db8ff54b306c [INFO] validating manifest of stardisblue/rust-eternity 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 stardisblue/rust-eternity 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 stardisblue/rust-eternity [INFO] finished frobbing stardisblue/rust-eternity [INFO] frobbed toml for stardisblue/rust-eternity written to work/ex/clippy-test-run/sources/stable/gh/stardisblue/rust-eternity/Cargo.toml [INFO] started frobbing stardisblue/rust-eternity [INFO] finished frobbing stardisblue/rust-eternity [INFO] frobbed toml for stardisblue/rust-eternity written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/stardisblue/rust-eternity/Cargo.toml [INFO] crate stardisblue/rust-eternity 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 stardisblue/rust-eternity 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/stardisblue/rust-eternity:/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] 4b2200a46d97de091456a73a872212f9eb528d4d4bf4d37a6402da417bbe4ad2 [INFO] running `"docker" "start" "-a" "4b2200a46d97de091456a73a872212f9eb528d4d4bf4d37a6402da417bbe4ad2"` [INFO] [stderr] Checking rust-eternity v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variant is never constructed: `North` [INFO] [stderr] --> src/board.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | North, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `South` [INFO] [stderr] --> src/board.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | South, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `West` [INFO] [stderr] --> src/board.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | West, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_frontier` [INFO] [stderr] --> src/board.rs:88:5 [INFO] [stderr] | [INFO] [stderr] 88 | pub fn get_frontier(&self, pos: (u8, u8)) -> (Face, Face, Face, Face) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face` [INFO] [stderr] --> src/board.rs:184:5 [INFO] [stderr] | [INFO] [stderr] 184 | pub fn get_face(&self, side: Border) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face_corner` [INFO] [stderr] --> src/board.rs:212:5 [INFO] [stderr] | [INFO] [stderr] 212 | fn get_face_corner(side: Border, a: &u8, b: &u8, borders: &(Border, Border)) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face_border` [INFO] [stderr] --> src/board.rs:241:5 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face_full` [INFO] [stderr] --> src/board.rs:270:5 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Border` [INFO] [stderr] --> src/board.rs:310:5 [INFO] [stderr] | [INFO] [stderr] 310 | Border, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `None` [INFO] [stderr] --> src/board.rs:311:5 [INFO] [stderr] | [INFO] [stderr] 311 | None, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Color` [INFO] [stderr] --> src/board.rs:312:5 [INFO] [stderr] | [INFO] [stderr] 312 | Color(u8), [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: useless lint attribute [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[allow(unused)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: if you just forgot a `!`, use: `#![allow(unused)]` [INFO] [stderr] | [INFO] [stderr] = note: #[deny(clippy::useless_attribute)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_attribute [INFO] [stderr] [INFO] [stderr] warning: unused variable: `board` [INFO] [stderr] --> src/board.rs:322:13 [INFO] [stderr] | [INFO] [stderr] 322 | let board = BoardGame::new(file_content.lines().map(|line| line.to_string()).collect()); [INFO] [stderr] | ^^^^^ help: consider using `_board` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] 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/board.rs:212:41 [INFO] [stderr] | [INFO] [stderr] 212 | fn get_face_corner(side: Border, a: &u8, b: &u8, borders: &(Border, Border)) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:212:49 [INFO] [stderr] | [INFO] [stderr] 212 | fn get_face_corner(side: Border, a: &u8, b: &u8, borders: &(Border, Border)) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:241:41 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:241:49 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:241:57 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:39 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:47 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:55 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:63 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `North` [INFO] [stderr] --> src/board.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | North, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `South` [INFO] [stderr] --> src/board.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | South, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `West` [INFO] [stderr] --> src/board.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | West, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_frontier` [INFO] [stderr] --> src/board.rs:88:5 [INFO] [stderr] | [INFO] [stderr] 88 | pub fn get_frontier(&self, pos: (u8, u8)) -> (Face, Face, Face, Face) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face` [INFO] [stderr] --> src/board.rs:184:5 [INFO] [stderr] | [INFO] [stderr] 184 | pub fn get_face(&self, side: Border) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face_corner` [INFO] [stderr] --> src/board.rs:212:5 [INFO] [stderr] | [INFO] [stderr] 212 | fn get_face_corner(side: Border, a: &u8, b: &u8, borders: &(Border, Border)) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face_border` [INFO] [stderr] --> src/board.rs:241:5 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `get_face_full` [INFO] [stderr] --> src/board.rs:270:5 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Border` [INFO] [stderr] --> src/board.rs:310:5 [INFO] [stderr] | [INFO] [stderr] 310 | Border, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `None` [INFO] [stderr] --> src/board.rs:311:5 [INFO] [stderr] | [INFO] [stderr] 311 | None, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Color` [INFO] [stderr] --> src/board.rs:312:5 [INFO] [stderr] | [INFO] [stderr] 312 | Color(u8), [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: useless lint attribute [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[allow(unused)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: if you just forgot a `!`, use: `#![allow(unused)]` [INFO] [stderr] | [INFO] [stderr] = note: #[deny(clippy::useless_attribute)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_attribute [INFO] [stderr] [INFO] [stderr] error: Could not compile `rust-eternity`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value [INFO] [stderr] --> src/board.rs:212:41 [INFO] [stderr] | [INFO] [stderr] 212 | fn get_face_corner(side: Border, a: &u8, b: &u8, borders: &(Border, Border)) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:212:49 [INFO] [stderr] | [INFO] [stderr] 212 | fn get_face_corner(side: Border, a: &u8, b: &u8, borders: &(Border, Border)) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:241:41 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:241:49 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:241:57 [INFO] [stderr] | [INFO] [stderr] 241 | fn get_face_border(side: Border, a: &u8, b: &u8, c: &u8, border: &Border) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:39 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:47 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:55 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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/board.rs:270:63 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_face_full(side: Border, a: &u8, b: &u8, c: &u8, d: &u8, orientation: &Compass) -> Face { [INFO] [stderr] | ^^^ help: consider passing by value instead: `u8` [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] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: Could not compile `rust-eternity`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "4b2200a46d97de091456a73a872212f9eb528d4d4bf4d37a6402da417bbe4ad2"` [INFO] running `"docker" "rm" "-f" "4b2200a46d97de091456a73a872212f9eb528d4d4bf4d37a6402da417bbe4ad2"` [INFO] [stdout] 4b2200a46d97de091456a73a872212f9eb528d4d4bf4d37a6402da417bbe4ad2