[INFO] updating cached repository LennyBoyatzis/snake-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LennyBoyatzis/snake-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LennyBoyatzis/snake-in-rust" "work/ex/clippy-test-run/sources/stable/gh/LennyBoyatzis/snake-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/LennyBoyatzis/snake-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LennyBoyatzis/snake-in-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LennyBoyatzis/snake-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LennyBoyatzis/snake-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ef4b7859478b959546eb4eedf5f0cc264ca3dbd2
[INFO] sha for GitHub repo LennyBoyatzis/snake-in-rust: ef4b7859478b959546eb4eedf5f0cc264ca3dbd2
[INFO] validating manifest of LennyBoyatzis/snake-in-rust 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 LennyBoyatzis/snake-in-rust 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 LennyBoyatzis/snake-in-rust
[INFO] finished frobbing LennyBoyatzis/snake-in-rust
[INFO] frobbed toml for LennyBoyatzis/snake-in-rust written to work/ex/clippy-test-run/sources/stable/gh/LennyBoyatzis/snake-in-rust/Cargo.toml
[INFO] started frobbing LennyBoyatzis/snake-in-rust
[INFO] finished frobbing LennyBoyatzis/snake-in-rust
[INFO] frobbed toml for LennyBoyatzis/snake-in-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/LennyBoyatzis/snake-in-rust/Cargo.toml
[INFO] crate LennyBoyatzis/snake-in-rust 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 LennyBoyatzis/snake-in-rust 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/gh/LennyBoyatzis/snake-in-rust:/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] c79c29d29a241eddaa34714e8bb6d8363271eb69b329cc7aa3fc92d163df35df
[INFO] running `"docker" "start" "-a" "c79c29d29a241eddaa34714e8bb6d8363271eb69b329cc7aa3fc92d163df35df"`
[INFO] [stderr]    Compiling num-traits v0.1.42
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-rational v0.1.41
[INFO] [stderr]     Checking rusttype v0.2.3
[INFO] [stderr]     Checking gfx_core v0.8.2
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking piston2d-graphics v0.24.0
[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 wayland-protocols v0.9.10
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[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 gfx v0.17.1
[INFO] [stderr]     Checking gfx_device_gl v0.15.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.43.0
[INFO] [stderr]     Checking piston-gfx_texture v0.31.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.48.0
[INFO] [stderr]     Checking piston_window v0.75.0
[INFO] [stderr]     Checking snake-in-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/snake.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         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:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     (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:43:26
[INFO] [stderr]    |
[INFO] [stderr] 43 |             BLOCK_SIZE * (width 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:44:26
[INFO] [stderr]    |
[INFO] [stderr] 44 |             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:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |     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:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 | /         match dir {
[INFO] [stderr] 75 | |             Some(d) => self.direction = d,
[INFO] [stderr] 76 | |             None => (),
[INFO] [stderr] 77 | |         }
[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:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 | /         match dir {
[INFO] [stderr] 113 | |             Some(d) => moving_dir = d,
[INFO] [stderr] 114 | |             None => {}
[INFO] [stderr] 115 | |         }
[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:132:22
[INFO] [stderr]     |
[INFO] [stderr] 132 |         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:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         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:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     (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:43:26
[INFO] [stderr]    |
[INFO] [stderr] 43 |             BLOCK_SIZE * (width 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:44:26
[INFO] [stderr]    |
[INFO] [stderr] 44 |             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:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |     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:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 | /         match dir {
[INFO] [stderr] 75 | |             Some(d) => self.direction = d,
[INFO] [stderr] 76 | |             None => (),
[INFO] [stderr] 77 | |         }
[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:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 | /         match dir {
[INFO] [stderr] 113 | |             Some(d) => moving_dir = d,
[INFO] [stderr] 114 | |             None => {}
[INFO] [stderr] 115 | |         }
[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:132:22
[INFO] [stderr]     |
[INFO] [stderr] 132 |         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 57.60s
[INFO] running `"docker" "inspect" "c79c29d29a241eddaa34714e8bb6d8363271eb69b329cc7aa3fc92d163df35df"`
[INFO] running `"docker" "rm" "-f" "c79c29d29a241eddaa34714e8bb6d8363271eb69b329cc7aa3fc92d163df35df"`
[INFO] [stdout] c79c29d29a241eddaa34714e8bb6d8363271eb69b329cc7aa3fc92d163df35df