[INFO] updating cached repository martinhath/nail
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/martinhath/nail
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/martinhath/nail" "work/ex/clippy-test-run/sources/stable/gh/martinhath/nail"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/martinhath/nail'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/martinhath/nail" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/martinhath/nail"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/martinhath/nail'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b579644b4a549c4820b7d6794a972b5cb379f982
[INFO] sha for GitHub repo martinhath/nail: b579644b4a549c4820b7d6794a972b5cb379f982
[INFO] validating manifest of martinhath/nail 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 martinhath/nail 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 martinhath/nail
[INFO] finished frobbing martinhath/nail
[INFO] frobbed toml for martinhath/nail written to work/ex/clippy-test-run/sources/stable/gh/martinhath/nail/Cargo.toml
[INFO] started frobbing martinhath/nail
[INFO] finished frobbing martinhath/nail
[INFO] frobbed toml for martinhath/nail written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/martinhath/nail/Cargo.toml
[INFO] crate martinhath/nail 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 martinhath/nail against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/martinhath/nail:/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] 8b3c577166f5ea08b907426154055679eba8999a1e7ef8904b85de5fb5d7f7a4
[INFO] running `"docker" "start" "-a" "8b3c577166f5ea08b907426154055679eba8999a1e7ef8904b85de5fb5d7f7a4"`
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking nail v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/main.rs:215:33
[INFO] [stderr]     |
[INFO] [stderr] 215 |                         let mut a = before;
[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/main.rs:215:33
[INFO] [stderr]     |
[INFO] [stderr] 215 |                         let mut a = before;
[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: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     IoError(::std::io::Error),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     ImageError(image::ImageError),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     IoError(::std::io::Error),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::enum_variant_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: Variant name ends with the enum's name
[INFO] [stderr]    --> src/main.rs:105:5
[INFO] [stderr]     |
[INFO] [stderr] 105 |     ImageError(image::ImageError),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:141:17
[INFO] [stderr]     |
[INFO] [stderr] 141 |                 triangle.color[3] as f32 / 255.0
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(triangle.color[3])`
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:191:16
[INFO] [stderr]     |
[INFO] [stderr] 191 |             if pixels.len() == 0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `pixels.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:210:26
[INFO] [stderr]     |
[INFO] [stderr] 210 |                         (target[0] as i16 - before[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:210:45
[INFO] [stderr]     |
[INFO] [stderr] 210 |                         (target[0] as i16 - before[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^ help: try: `i16::from(before[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:211:30
[INFO] [stderr]     |
[INFO] [stderr] 211 |                             (target[1] as i16 - before[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:211:49
[INFO] [stderr]     |
[INFO] [stderr] 211 |                             (target[1] as i16 - before[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^ help: try: `i16::from(before[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:212:30
[INFO] [stderr]     |
[INFO] [stderr] 212 |                             (target[2] as i16 - before[2] as i16).pow(2) as isize
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[2])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:212:49
[INFO] [stderr]     |
[INFO] [stderr] 212 |                             (target[2] as i16 - before[2] as i16).pow(2) as isize
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^ help: try: `i16::from(before[2])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:220:26
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         (target[0] as i16 - after[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:220:45
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         (target[0] as i16 - after[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^ help: try: `i16::from(after[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:221:30
[INFO] [stderr]     |
[INFO] [stderr] 221 |                             (target[1] as i16 - after[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:221:49
[INFO] [stderr]     |
[INFO] [stderr] 221 |                             (target[1] as i16 - after[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: try: `i16::from(after[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:222:30
[INFO] [stderr]     |
[INFO] [stderr] 222 |                             (target[2] as i16 - after[2] as i16).pow(2) as isize
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[2])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:222:49
[INFO] [stderr]     |
[INFO] [stderr] 222 |                             (target[2] as i16 - after[2] as i16).pow(2) as isize
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: try: `i16::from(after[2])`
[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: redundant closure found
[INFO] [stderr]    --> src/main.rs:304:18
[INFO] [stderr]     |
[INFO] [stderr] 304 |         .map_err(|e| Error::ImageError(e))?
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::ImageError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/main.rs:309:18
[INFO] [stderr]     |
[INFO] [stderr] 309 |         .map_err(|e| Error::IoError(e))?;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:141:17
[INFO] [stderr]     |
[INFO] [stderr] 141 |                 triangle.color[3] as f32 / 255.0
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(triangle.color[3])`
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:191:16
[INFO] [stderr]     |
[INFO] [stderr] 191 |             if pixels.len() == 0 {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `pixels.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:210:26
[INFO] [stderr]     |
[INFO] [stderr] 210 |                         (target[0] as i16 - before[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:210:45
[INFO] [stderr]     |
[INFO] [stderr] 210 |                         (target[0] as i16 - before[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^^ help: try: `i16::from(before[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:211:30
[INFO] [stderr]     |
[INFO] [stderr] 211 |                             (target[1] as i16 - before[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:211:49
[INFO] [stderr]     |
[INFO] [stderr] 211 |                             (target[1] as i16 - before[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^ help: try: `i16::from(before[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:212:30
[INFO] [stderr]     |
[INFO] [stderr] 212 |                             (target[2] as i16 - before[2] as i16).pow(2) as isize
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[2])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:212:49
[INFO] [stderr]     |
[INFO] [stderr] 212 |                             (target[2] as i16 - before[2] as i16).pow(2) as isize
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^ help: try: `i16::from(before[2])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:220:26
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         (target[0] as i16 - after[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:220:45
[INFO] [stderr]     |
[INFO] [stderr] 220 |                         (target[0] as i16 - after[0] as i16).pow(2) as isize +
[INFO] [stderr]     |                                             ^^^^^^^^^^^^^^^ help: try: `i16::from(after[0])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:221:30
[INFO] [stderr]     |
[INFO] [stderr] 221 |                             (target[1] as i16 - after[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:221:49
[INFO] [stderr]     |
[INFO] [stderr] 221 |                             (target[1] as i16 - after[1] as i16).pow(2) as isize +
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: try: `i16::from(after[1])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:222:30
[INFO] [stderr]     |
[INFO] [stderr] 222 |                             (target[2] as i16 - after[2] as i16).pow(2) as isize
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^ help: try: `i16::from(target[2])`
[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 i16 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:222:49
[INFO] [stderr]     |
[INFO] [stderr] 222 |                             (target[2] as i16 - after[2] as i16).pow(2) as isize
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^ help: try: `i16::from(after[2])`
[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: redundant closure found
[INFO] [stderr]    --> src/main.rs:304:18
[INFO] [stderr]     |
[INFO] [stderr] 304 |         .map_err(|e| Error::ImageError(e))?
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::ImageError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/main.rs:309:18
[INFO] [stderr]     |
[INFO] [stderr] 309 |         .map_err(|e| Error::IoError(e))?;
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.00s
[INFO] running `"docker" "inspect" "8b3c577166f5ea08b907426154055679eba8999a1e7ef8904b85de5fb5d7f7a4"`
[INFO] running `"docker" "rm" "-f" "8b3c577166f5ea08b907426154055679eba8999a1e7ef8904b85de5fb5d7f7a4"`
[INFO] [stdout] 8b3c577166f5ea08b907426154055679eba8999a1e7ef8904b85de5fb5d7f7a4