[INFO] updating cached repository ctiedt/voronoi
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ctiedt/voronoi
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ctiedt/voronoi" "work/ex/clippy-test-run/sources/stable/gh/ctiedt/voronoi"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ctiedt/voronoi'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ctiedt/voronoi" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ctiedt/voronoi"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ctiedt/voronoi'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84073354b4d80b6373ca7261de6a513034e84a0a
[INFO] sha for GitHub repo ctiedt/voronoi: 84073354b4d80b6373ca7261de6a513034e84a0a
[INFO] validating manifest of ctiedt/voronoi 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 ctiedt/voronoi 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 ctiedt/voronoi
[INFO] finished frobbing ctiedt/voronoi
[INFO] frobbed toml for ctiedt/voronoi written to work/ex/clippy-test-run/sources/stable/gh/ctiedt/voronoi/Cargo.toml
[INFO] started frobbing ctiedt/voronoi
[INFO] finished frobbing ctiedt/voronoi
[INFO] frobbed toml for ctiedt/voronoi written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ctiedt/voronoi/Cargo.toml
[INFO] crate ctiedt/voronoi 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 ctiedt/voronoi 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/ctiedt/voronoi:/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] 82e4ab17978302983fdd36c1cd42f1056a68d9a38082bddc9033fc383560eb6a
[INFO] running `"docker" "start" "-a" "82e4ab17978302983fdd36c1cd42f1056a68d9a38082bddc9033fc383560eb6a"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking voronoi v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:21:22
[INFO] [stderr]    |
[INFO] [stderr] 21 |         points.push([(random::<u32>() % size_x) as f64, (random::<u32>() % size_y) as f64]);
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(random::<u32>() % size_x)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:21:57
[INFO] [stderr]    |
[INFO] [stderr] 21 |         points.push([(random::<u32>() % size_x) as f64, (random::<u32>() % size_y) as f64]);
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(random::<u32>() % size_y)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut min = (size_x * size_y) as f64;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(size_x * size_y)`
[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: the loop variable `i` is used to index `points`
[INFO] [stderr]   --> src/main.rs:28:18
[INFO] [stderr]    |
[INFO] [stderr] 28 |         for i in 0..n_points {
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 28 |         for (i, <item>) in points.iter().enumerate().take(n_points) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:29:22
[INFO] [stderr]    |
[INFO] [stderr] 29 |             if dist([x as f64, y as f64], points[i]) < min {
[INFO] [stderr]    |                      ^^^^^^^^ help: try: `f64::from(x)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |             if dist([x as f64, y as f64], points[i]) < min {
[INFO] [stderr]    |                                ^^^^^^^^ help: try: `f64::from(y)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:30:29
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 min = dist([x as f64, y as f64], points[i]);
[INFO] [stderr]    |                             ^^^^^^^^ help: try: `f64::from(x)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:30:39
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 min = dist([x as f64, y as f64], points[i]);
[INFO] [stderr]    |                                       ^^^^^^^^ help: try: `f64::from(y)`
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     img.save(p);
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:21:22
[INFO] [stderr]    |
[INFO] [stderr] 21 |         points.push([(random::<u32>() % size_x) as f64, (random::<u32>() % size_y) as f64]);
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(random::<u32>() % size_x)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:21:57
[INFO] [stderr]    |
[INFO] [stderr] 21 |         points.push([(random::<u32>() % size_x) as f64, (random::<u32>() % size_y) as f64]);
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(random::<u32>() % size_y)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:26:23
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut min = (size_x * size_y) as f64;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(size_x * size_y)`
[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: the loop variable `i` is used to index `points`
[INFO] [stderr]   --> src/main.rs:28:18
[INFO] [stderr]    |
[INFO] [stderr] 28 |         for i in 0..n_points {
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 28 |         for (i, <item>) in points.iter().enumerate().take(n_points) {
[INFO] [stderr]    |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:29:22
[INFO] [stderr]    |
[INFO] [stderr] 29 |             if dist([x as f64, y as f64], points[i]) < min {
[INFO] [stderr]    |                      ^^^^^^^^ help: try: `f64::from(x)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |             if dist([x as f64, y as f64], points[i]) < min {
[INFO] [stderr]    |                                ^^^^^^^^ help: try: `f64::from(y)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:30:29
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 min = dist([x as f64, y as f64], points[i]);
[INFO] [stderr]    |                             ^^^^^^^^ help: try: `f64::from(x)`
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:30:39
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 min = dist([x as f64, y as f64], points[i]);
[INFO] [stderr]    |                                       ^^^^^^^^ help: try: `f64::from(y)`
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     img.save(p);
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.29s
[INFO] running `"docker" "inspect" "82e4ab17978302983fdd36c1cd42f1056a68d9a38082bddc9033fc383560eb6a"`
[INFO] running `"docker" "rm" "-f" "82e4ab17978302983fdd36c1cd42f1056a68d9a38082bddc9033fc383560eb6a"`
[INFO] [stdout] 82e4ab17978302983fdd36c1cd42f1056a68d9a38082bddc9033fc383560eb6a