[INFO] updating cached repository mau5atron/snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mau5atron/snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mau5atron/snake" "work/ex/clippy-test-run/sources/stable/gh/mau5atron/snake"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/mau5atron/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mau5atron/snake" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mau5atron/snake"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mau5atron/snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9857dbf06672f883574c4a409416bcd0be86d48a
[INFO] sha for GitHub repo mau5atron/snake: 9857dbf06672f883574c4a409416bcd0be86d48a
[INFO] validating manifest of mau5atron/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 mau5atron/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 mau5atron/snake
[INFO] finished frobbing mau5atron/snake
[INFO] frobbed toml for mau5atron/snake written to work/ex/clippy-test-run/sources/stable/gh/mau5atron/snake/Cargo.toml
[INFO] started frobbing mau5atron/snake
[INFO] finished frobbing mau5atron/snake
[INFO] frobbed toml for mau5atron/snake written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mau5atron/snake/Cargo.toml
[INFO] crate mau5atron/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 mau5atron/snake against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/mau5atron/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] 02a9733ec51dc6917470b5cd126408cc0b0bc6f616f32a669315703158ab08e7
[INFO] running `"docker" "start" "-a" "02a9733ec51dc6917470b5cd126408cc0b0bc6f616f32a669315703158ab08e7"`
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking piston2d-graphics v0.26.0
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.0
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.48.0
[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking piston-gfx_texture v0.34.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.52.0
[INFO] [stderr]     Checking piston_window v0.81.0
[INFO] [stderr]     Checking snake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/snake.rs:181:3
[INFO] [stderr]     |
[INFO] [stderr] 181 |         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: unneeded return statement
[INFO] [stderr]    --> src/snake.rs:181:3
[INFO] [stderr]     |
[INFO] [stderr] 181 |         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:11:2
[INFO] [stderr]    |
[INFO] [stderr] 11 |     (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:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |         [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:50:52
[INFO] [stderr]    |
[INFO] [stderr] 50 |         [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:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 |     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:97:3
[INFO] [stderr]     |
[INFO] [stderr] 97  |           match dir {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 98  | |             // set snake dir to d
[INFO] [stderr] 99  | |             Some(d) => self.direction = d,
[INFO] [stderr] 100 | |             // else set to none
[INFO] [stderr] 101 | |             None => (),
[INFO] [stderr] 102 | |         }
[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:143:3
[INFO] [stderr]     |
[INFO] [stderr] 143 |           match dir {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 144 | |             Some(d) => moving_dir = d,
[INFO] [stderr] 145 | |             None => {}
[INFO] [stderr] 146 | |         }
[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 `i` is used as a loop counter. Consider using `for (i, item) in &self.body.enumerate()` or similar iterators
[INFO] [stderr]    --> src/snake.rs:167:16
[INFO] [stderr]     |
[INFO] [stderr] 167 |         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: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/draw.rs:11:2
[INFO] [stderr]    |
[INFO] [stderr] 11 |     (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:50:23
[INFO] [stderr]    |
[INFO] [stderr] 50 |         [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:50:52
[INFO] [stderr]    |
[INFO] [stderr] 50 |         [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:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 |     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:97:3
[INFO] [stderr]     |
[INFO] [stderr] 97  |           match dir {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 98  | |             // set snake dir to d
[INFO] [stderr] 99  | |             Some(d) => self.direction = d,
[INFO] [stderr] 100 | |             // else set to none
[INFO] [stderr] 101 | |             None => (),
[INFO] [stderr] 102 | |         }
[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:143:3
[INFO] [stderr]     |
[INFO] [stderr] 143 |           match dir {
[INFO] [stderr]     |  _________^
[INFO] [stderr] 144 | |             Some(d) => moving_dir = d,
[INFO] [stderr] 145 | |             None => {}
[INFO] [stderr] 146 | |         }
[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 `i` is used as a loop counter. Consider using `for (i, item) in &self.body.enumerate()` or similar iterators
[INFO] [stderr]    --> src/snake.rs:167:16
[INFO] [stderr]     |
[INFO] [stderr] 167 |         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 1m 07s
[INFO] running `"docker" "inspect" "02a9733ec51dc6917470b5cd126408cc0b0bc6f616f32a669315703158ab08e7"`
[INFO] running `"docker" "rm" "-f" "02a9733ec51dc6917470b5cd126408cc0b0bc6f616f32a669315703158ab08e7"`
[INFO] [stdout] 02a9733ec51dc6917470b5cd126408cc0b0bc6f616f32a669315703158ab08e7