[INFO] updating cached repository streletss/game-of-snake
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/streletss/game-of-snake
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/streletss/game-of-snake" "work/ex/clippy-test-run/sources/stable/gh/streletss/game-of-snake"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/streletss/game-of-snake'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/streletss/game-of-snake" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/streletss/game-of-snake"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/streletss/game-of-snake'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a726718a05408de8061a222c099c55d5f793ba35
[INFO] sha for GitHub repo streletss/game-of-snake: a726718a05408de8061a222c099c55d5f793ba35
[INFO] validating manifest of streletss/game-of-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 streletss/game-of-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 streletss/game-of-snake
[INFO] finished frobbing streletss/game-of-snake
[INFO] frobbed toml for streletss/game-of-snake written to work/ex/clippy-test-run/sources/stable/gh/streletss/game-of-snake/Cargo.toml
[INFO] started frobbing streletss/game-of-snake
[INFO] finished frobbing streletss/game-of-snake
[INFO] frobbed toml for streletss/game-of-snake written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/streletss/game-of-snake/Cargo.toml
[INFO] crate streletss/game-of-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 streletss/game-of-snake against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/streletss/game-of-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] 75d80c72b2207553fae96822e8786b15c51ddcc0535884edde13d17aa322f403
[INFO] running `"docker" "start" "-a" "75d80c72b2207553fae96822e8786b15c51ddcc0535884edde13d17aa322f403"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking stb_truetype v0.2.4
[INFO] [stderr]     Checking piston-viewport v0.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking libloading v0.5.0
[INFO] [stderr]     Checking ordered-float v0.5.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]     Checking wayland-sys v0.20.12
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking wayland-commons v0.20.12
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking piston2d-graphics v0.27.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]    Compiling glutin v0.18.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking smithay-client-toolkit v0.3.0
[INFO] [stderr]     Checking winit v0.17.2
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking gfx_core v0.8.3
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking pistoncore-input v0.22.0
[INFO] [stderr]     Checking pistoncore-window v0.33.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.38.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.49.0
[INFO] [stderr]     Checking piston v0.38.0
[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 v0.53.0
[INFO] [stderr]     Checking piston_window v0.83.0
[INFO] [stderr]     Checking snake_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]   --> src/draw.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   g: &mut G2d,
[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: 5th binding whose name is just one char
[INFO] [stderr]   --> src/draw.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   g: &mut G2d,
[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: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/draw.rs:7:3
[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:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |       BLOCK_SIZE * (w as f64),
[INFO] [stderr]    |                    ^^^^^^^^^^ help: try: `f64::from(w)`
[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:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |       BLOCK_SIZE * (h as f64),
[INFO] [stderr]    |                    ^^^^^^^^^^ help: try: `f64::from(h)`
[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:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 |   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: 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:124:18
[INFO] [stderr]     |
[INFO] [stderr] 124 |     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:7:3
[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:43:20
[INFO] [stderr]    |
[INFO] [stderr] 43 |       BLOCK_SIZE * (w as f64),
[INFO] [stderr]    |                    ^^^^^^^^^^ help: try: `f64::from(w)`
[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:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |       BLOCK_SIZE * (h as f64),
[INFO] [stderr]    |                    ^^^^^^^^^^ help: try: `f64::from(h)`
[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:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 |   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: 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:124:18
[INFO] [stderr]     |
[INFO] [stderr] 124 |     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 24s
[INFO] running `"docker" "inspect" "75d80c72b2207553fae96822e8786b15c51ddcc0535884edde13d17aa322f403"`
[INFO] running `"docker" "rm" "-f" "75d80c72b2207553fae96822e8786b15c51ddcc0535884edde13d17aa322f403"`
[INFO] [stdout] 75d80c72b2207553fae96822e8786b15c51ddcc0535884edde13d17aa322f403