[INFO] updating cached repository BrianMehrman/rust_mandelbrot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BrianMehrman/rust_mandelbrot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BrianMehrman/rust_mandelbrot" "work/ex/clippy-test-run/sources/stable/gh/BrianMehrman/rust_mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/BrianMehrman/rust_mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BrianMehrman/rust_mandelbrot" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/BrianMehrman/rust_mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/BrianMehrman/rust_mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7824c96e7ab8fb4919949c75a990f49c80ff09ba
[INFO] sha for GitHub repo BrianMehrman/rust_mandelbrot: 7824c96e7ab8fb4919949c75a990f49c80ff09ba
[INFO] validating manifest of BrianMehrman/rust_mandelbrot 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 BrianMehrman/rust_mandelbrot 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 BrianMehrman/rust_mandelbrot
[INFO] finished frobbing BrianMehrman/rust_mandelbrot
[INFO] frobbed toml for BrianMehrman/rust_mandelbrot written to work/ex/clippy-test-run/sources/stable/gh/BrianMehrman/rust_mandelbrot/Cargo.toml
[INFO] started frobbing BrianMehrman/rust_mandelbrot
[INFO] finished frobbing BrianMehrman/rust_mandelbrot
[INFO] frobbed toml for BrianMehrman/rust_mandelbrot written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/BrianMehrman/rust_mandelbrot/Cargo.toml
[INFO] crate BrianMehrman/rust_mandelbrot 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 BrianMehrman/rust_mandelbrot against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/BrianMehrman/rust_mandelbrot:/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] 3cda5777e78ee3fddc7c6e9bed90b69a252d7eb511fb234d61af8f63c6fc8d4e
[INFO] running `"docker" "start" "-a" "3cda5777e78ee3fddc7c6e9bed90b69a252d7eb511fb234d61af8f63c6fc8d4e"`
[INFO] [stderr]    Compiling cmake v0.1.30
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]    Compiling glfw-sys v3.2.2
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]     Checking glfw v0.19.0
[INFO] [stderr]     Checking benoît v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/main.rs:271:154
[INFO] [stderr]     |
[INFO] [stderr] 271 | fn process_events(window: &mut glfw::Window, events: &Receiver<(f64, glfw::WindowEvent)>, keypress: &mut bool, x: &mut f64, y: &mut f64, zoom: &mut f64) -> () {
[INFO] [stderr]     |                                                                                                                                                          ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]    --> src/main.rs:271:154
[INFO] [stderr]     |
[INFO] [stderr] 271 | fn process_events(window: &mut glfw::Window, events: &Receiver<(f64, glfw::WindowEvent)>, keypress: &mut bool, x: &mut f64, y: &mut f64, zoom: &mut f64) -> () {
[INFO] [stderr]     |                                                                                                                                                          ^^^^^ help: remove the `-> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:102:27
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let mut success = gl::FALSE as GLint;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::FALSE)`
[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 u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:106:23
[INFO] [stderr]     |
[INFO] [stderr] 106 |         if success != gl::TRUE as GLint {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::TRUE)`
[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 u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:118:23
[INFO] [stderr]     |
[INFO] [stderr] 118 |         if success != gl::TRUE as GLint {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::TRUE)`
[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 u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:130:23
[INFO] [stderr]     |
[INFO] [stderr] 130 |         if success != gl::TRUE as GLint {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::TRUE)`
[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: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/main.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 | /                 let smaller: i32;
[INFO] [stderr] 240 | |                 if w >= h {
[INFO] [stderr] 241 | |                     smaller = h;
[INFO] [stderr] 242 | |                 } else {
[INFO] [stderr] 243 | |                     smaller= w;
[INFO] [stderr] 244 | |                 }
[INFO] [stderr]     | |_________________^ help: it is more idiomatic to write: `let smaller = if w >= h { h } else { w };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:102:27
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let mut success = gl::FALSE as GLint;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::FALSE)`
[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 u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:106:23
[INFO] [stderr]     |
[INFO] [stderr] 106 |         if success != gl::TRUE as GLint {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::TRUE)`
[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 u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:118:23
[INFO] [stderr]     |
[INFO] [stderr] 118 |         if success != gl::TRUE as GLint {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::TRUE)`
[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 u8 to i32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:130:23
[INFO] [stderr]     |
[INFO] [stderr] 130 |         if success != gl::TRUE as GLint {
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: try: `i32::from(gl::TRUE)`
[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: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]    --> src/main.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 | /                 let smaller: i32;
[INFO] [stderr] 240 | |                 if w >= h {
[INFO] [stderr] 241 | |                     smaller = h;
[INFO] [stderr] 242 | |                 } else {
[INFO] [stderr] 243 | |                     smaller= w;
[INFO] [stderr] 244 | |                 }
[INFO] [stderr]     | |_________________^ help: it is more idiomatic to write: `let smaller = if w >= h { h } else { w };`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.16s
[INFO] running `"docker" "inspect" "3cda5777e78ee3fddc7c6e9bed90b69a252d7eb511fb234d61af8f63c6fc8d4e"`
[INFO] running `"docker" "rm" "-f" "3cda5777e78ee3fddc7c6e9bed90b69a252d7eb511fb234d61af8f63c6fc8d4e"`
[INFO] [stdout] 3cda5777e78ee3fddc7c6e9bed90b69a252d7eb511fb234d61af8f63c6fc8d4e