[INFO] updating cached repository gagarin55/rust-snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gagarin55/rust-snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gagarin55/rust-snake" "work/ex/clippy-test-run/sources/stable/gh/gagarin55/rust-snake"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/gagarin55/rust-snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gagarin55/rust-snake" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/gagarin55/rust-snake"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/gagarin55/rust-snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e8522e8826d59b7c8a74f3692905218b97bb3e4b
[INFO] sha for GitHub repo gagarin55/rust-snake: e8522e8826d59b7c8a74f3692905218b97bb3e4b
[INFO] validating manifest of gagarin55/rust-snake 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 gagarin55/rust-snake 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 gagarin55/rust-snake
[INFO] finished frobbing gagarin55/rust-snake
[INFO] frobbed toml for gagarin55/rust-snake written to work/ex/clippy-test-run/sources/stable/gh/gagarin55/rust-snake/Cargo.toml
[INFO] started frobbing gagarin55/rust-snake
[INFO] finished frobbing gagarin55/rust-snake
[INFO] frobbed toml for gagarin55/rust-snake written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/gagarin55/rust-snake/Cargo.toml
[INFO] crate gagarin55/rust-snake 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 gagarin55/rust-snake 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/gh/gagarin55/rust-snake:/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] 808ea7e6f838e35ab661583b7bc4e4b381c1fb596033bff57f1b99a5e2197aed
[INFO] running `"docker" "start" "-a" "808ea7e6f838e35ab661583b7bc4e4b381c1fb596033bff57f1b99a5e2197aed"`
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking piston2d-graphics v0.24.0
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.9.10
[INFO] [stderr]     Checking wayland-client v0.9.10
[INFO] [stderr]     Checking piston-gfx_texture v0.30.0
[INFO] [stderr]     Checking wayland-protocols v0.9.10
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.47.0
[INFO] [stderr]     Checking wayland-window v0.8.0
[INFO] [stderr]     Checking winit v0.8.3
[INFO] [stderr]     Checking glutin v0.10.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.43.0
[INFO] [stderr]     Checking piston_window v0.74.0
[INFO] [stderr]     Checking snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/snake.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/draw.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     (game_coord as f64) * BLOCK_SIZE
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(game_coord)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/draw.rs:34:29
[INFO] [stderr]    |
[INFO] [stderr] 34 |         [x, y, BLOCK_SIZE * (width as f64), BLOCK_SIZE * (height as f64)],
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^ help: try: `f64::from(width)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/draw.rs:34:58
[INFO] [stderr]    |
[INFO] [stderr] 34 |         [x, y, BLOCK_SIZE * (width as f64), BLOCK_SIZE * (height as f64)],
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^ help: try: `f64::from(height)`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/snake.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn opposite(&self) -> 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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/snake.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 | /         match dir {
[INFO] [stderr] 86 | |             Some(d) => self.direction = d,
[INFO] [stderr] 87 | |             None => (),
[INFO] [stderr] 88 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(d) = dir { self.direction = d }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/snake.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 | /         match dir {
[INFO] [stderr] 125 | |             Some(d) => moving_dir = d,
[INFO] [stderr] 126 | |             None => {}
[INFO] [stderr] 127 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(d) = dir { moving_dir = d }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: the variable `ch` is used as a loop counter. Consider using `for (ch, item) in &self.body.enumerate()` or similar iterators
[INFO] [stderr]    --> src/snake.rs:145:22
[INFO] [stderr]     |
[INFO] [stderr] 145 |         for block in &self.body {
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/snake.rs:155:9
[INFO] [stderr]     |
[INFO] [stderr] 155 |         return false;
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/draw.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     (game_coord as f64) * BLOCK_SIZE
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(game_coord)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/draw.rs:34:29
[INFO] [stderr]    |
[INFO] [stderr] 34 |         [x, y, BLOCK_SIZE * (width as f64), BLOCK_SIZE * (height as f64)],
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^ help: try: `f64::from(width)`
[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 i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/draw.rs:34:58
[INFO] [stderr]    |
[INFO] [stderr] 34 |         [x, y, BLOCK_SIZE * (width as f64), BLOCK_SIZE * (height as f64)],
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^ help: try: `f64::from(height)`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/snake.rs:19:21
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn opposite(&self) -> 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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/snake.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 | /         match dir {
[INFO] [stderr] 86 | |             Some(d) => self.direction = d,
[INFO] [stderr] 87 | |             None => (),
[INFO] [stderr] 88 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Some(d) = dir { self.direction = d }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/snake.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 | /         match dir {
[INFO] [stderr] 125 | |             Some(d) => moving_dir = d,
[INFO] [stderr] 126 | |             None => {}
[INFO] [stderr] 127 | |         }
[INFO] [stderr]     | |_________^ help: try this: `if let Some(d) = dir { moving_dir = d }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: the variable `ch` is used as a loop counter. Consider using `for (ch, item) in &self.body.enumerate()` or similar iterators
[INFO] [stderr]    --> src/snake.rs:145:22
[INFO] [stderr]     |
[INFO] [stderr] 145 |         for block in &self.body {
[INFO] [stderr]     |                      ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.48s
[INFO] running `"docker" "inspect" "808ea7e6f838e35ab661583b7bc4e4b381c1fb596033bff57f1b99a5e2197aed"`
[INFO] running `"docker" "rm" "-f" "808ea7e6f838e35ab661583b7bc4e4b381c1fb596033bff57f1b99a5e2197aed"`
[INFO] [stdout] 808ea7e6f838e35ab661583b7bc4e4b381c1fb596033bff57f1b99a5e2197aed