[INFO] crate dssim 2.9.9 is already in cache
[INFO] extracting crate dssim 2.9.9 into work/ex/clippy-test-run/sources/stable/reg/dssim/2.9.9
[INFO] extracting crate dssim 2.9.9 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dssim/2.9.9
[INFO] validating manifest of dssim-2.9.9 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 dssim-2.9.9 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 dssim-2.9.9
[INFO] finished frobbing dssim-2.9.9
[INFO] frobbed toml for dssim-2.9.9 written to work/ex/clippy-test-run/sources/stable/reg/dssim/2.9.9/Cargo.toml
[INFO] started frobbing dssim-2.9.9
[INFO] finished frobbing dssim-2.9.9
[INFO] frobbed toml for dssim-2.9.9 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/dssim/2.9.9/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 dssim-2.9.9 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/dssim/2.9.9:/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] a51887b653f7d209e53522e278fb12e3c2ccc423e65609b628188f68969826b5
[INFO] running `"docker" "start" "-a" "a51887b653f7d209e53522e278fb12e3c2ccc423e65609b628188f68969826b5"`
[INFO] [stderr]     Checking rgb v0.8.12
[INFO] [stderr]     Checking imgref v1.3.5
[INFO] [stderr]     Checking lodepng v2.4.2
[INFO] [stderr]     Checking dssim v2.9.9 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/dssim.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             is_chroma: is_chroma,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_chroma`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/image.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |         let a = self.a;
[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: redundant field names in struct initialization
[INFO] [stderr]    --> src/image.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             r: r,
[INFO] [stderr]     |             ^^^^ help: replace it with: `r`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/image.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |             g: g,
[INFO] [stderr]     |             ^^^^ help: replace it with: `g`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/image.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |             b: b,
[INFO] [stderr]     |             ^^^^ help: replace it with: `b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/linear.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |             g: g,
[INFO] [stderr]     |             ^^^^ help: replace it with: `g`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/dssim.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             is_chroma: is_chroma,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `is_chroma`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/image.rs:158:13
[INFO] [stderr]     |
[INFO] [stderr] 158 |         let a = self.a;
[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: redundant field names in struct initialization
[INFO] [stderr]    --> src/image.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |             r: r,
[INFO] [stderr]     |             ^^^^ help: replace it with: `r`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/image.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |             g: g,
[INFO] [stderr]     |             ^^^^ help: replace it with: `g`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/image.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 174 |             b: b,
[INFO] [stderr]     |             ^^^^ help: replace it with: `b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/linear.rs:156:13
[INFO] [stderr]     |
[INFO] [stderr] 156 |             g: g,
[INFO] [stderr]     |             ^^^^ help: replace it with: `g`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 | /         return multizip((blurred[0].iter().cloned(), blurred[1].iter().cloned(), blurred[2].iter().cloned())).map(|(l,a,b)| {
[INFO] [stderr] 130 | |             LAB {l,a,b}
[INFO] [stderr] 131 | |         }).collect();
[INFO] [stderr]     | |_____________________^
[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] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 129 |         multizip((blurred[0].iter().cloned(), blurred[1].iter().cloned(), blurred[2].iter().cloned())).map(|(l,a,b)| {
[INFO] [stderr] 130 |             LAB {l,a,b}
[INFO] [stderr] 131 |         }).collect()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         return out;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: remove `return` as shown: `out`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         return downsampled;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `downsampled`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 | /         return Some(DssimImage {
[INFO] [stderr] 227 | |             scale: all_sizes.into_par_iter().map(|s| {
[INFO] [stderr] 228 | |                 DssimChanScale {
[INFO] [stderr] 229 | |                     chan: s.into_par_iter().enumerate().map(|(n,l)| {
[INFO] [stderr] ...   |
[INFO] [stderr] 245 | |             }).collect(),
[INFO] [stderr] 246 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 226 |         Some(DssimImage {
[INFO] [stderr] 227 |             scale: all_sizes.into_par_iter().map(|s| {
[INFO] [stderr] 228 |                 DssimChanScale {
[INFO] [stderr] 229 |                     chan: s.into_par_iter().enumerate().map(|(n,l)| {
[INFO] [stderr] 230 |                         let w = l.width();
[INFO] [stderr] 231 |                         let h = l.height();
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |         return (to_dssim(ssim_sum / weight_sum).into(), ssim_maps);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(to_dssim(ssim_sum / weight_sum).into(), ssim_maps)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:384:9
[INFO] [stderr]     |
[INFO] [stderr] 384 |         return ImgVec::new(map_out, width, height);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ImgVec::new(map_out, width, height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:390:5
[INFO] [stderr]     |
[INFO] [stderr] 390 |     return 1.0 / ssim.min(1.0) - 1.0;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `1.0 / ssim.min(1.0) - 1.0`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         return Some(Img::new(scaled, half_width, half_height));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(Img::new(scaled, half_width, half_height))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:216:13
[INFO] [stderr]     |
[INFO] [stderr] 216 |             return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| Average4::average4(a[0], a[1], b[0], b[1]))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| Average4::average4(a[0], a[1], b[0], b[1]))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:240:9
[INFO] [stderr]     |
[INFO] [stderr] 240 | /         return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 241 | |             a[0].min(a[1]).min(b[0].min(b[1]))
[INFO] [stderr] 242 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 240 |         top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 241 |             a[0].min(a[1]).min(b[0].min(b[1]))
[INFO] [stderr] 242 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:265:9
[INFO] [stderr]     |
[INFO] [stderr] 265 | /         return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 266 | |             (a[0].min(a[1]).min(b[0].min(b[1])) + ((a[0] + a[1] + b[0] + b[1]) * 0.25))*0.5
[INFO] [stderr] 267 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 265 |         top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 266 |             (a[0].min(a[1]).min(b[0].min(b[1])) + ((a[0] + a[1] + b[0] + b[1]) * 0.25))*0.5
[INFO] [stderr] 267 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:290:9
[INFO] [stderr]     |
[INFO] [stderr] 290 | /         return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 291 | |             (a[0] + a[1] + b[0] + b[1]) * 0.25
[INFO] [stderr] 292 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 290 |         top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 291 |             (a[0] + a[1] + b[0] + b[1]) * 0.25
[INFO] [stderr] 292 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/tolab.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 | /         return (
[INFO] [stderr] 32 | |             Y * 1.16,
[INFO] [stderr] 33 | |             (86.2/ 220.0 + 500.0/ 220.0 * (X - Y)), /* 86 is a fudge to make the value positive */
[INFO] [stderr] 34 | |             (107.9/ 220.0 + 200.0/ 220.0 * (Y - Z)), /* 107 is a fudge to make the value positive */
[INFO] [stderr] 35 | |         );
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 31 |         (
[INFO] [stderr] 32 |             Y * 1.16,
[INFO] [stderr] 33 |             (86.2/ 220.0 + 500.0/ 220.0 * (X - Y)), /* 86 is a fudge to make the value positive */
[INFO] [stderr] 34 |             (107.9/ 220.0 + 200.0/ 220.0 * (Y - Z)), /* 107 is a fudge to make the value positive */
[INFO] [stderr] 35 |         )
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 | /         return multizip((blurred[0].iter().cloned(), blurred[1].iter().cloned(), blurred[2].iter().cloned())).map(|(l,a,b)| {
[INFO] [stderr] 130 | |             LAB {l,a,b}
[INFO] [stderr] 131 | |         }).collect();
[INFO] [stderr]     | |_____________________^
[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] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 129 |         multizip((blurred[0].iter().cloned(), blurred[1].iter().cloned(), blurred[2].iter().cloned())).map(|(l,a,b)| {
[INFO] [stderr] 130 |             LAB {l,a,b}
[INFO] [stderr] 131 |         }).collect()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:157:9
[INFO] [stderr]     |
[INFO] [stderr] 157 |         return out;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: remove `return` as shown: `out`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         return downsampled;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `downsampled`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:226:9
[INFO] [stderr]     |
[INFO] [stderr] 226 | /         return Some(DssimImage {
[INFO] [stderr] 227 | |             scale: all_sizes.into_par_iter().map(|s| {
[INFO] [stderr] 228 | |                 DssimChanScale {
[INFO] [stderr] 229 | |                     chan: s.into_par_iter().enumerate().map(|(n,l)| {
[INFO] [stderr] ...   |
[INFO] [stderr] 245 | |             }).collect(),
[INFO] [stderr] 246 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 226 |         Some(DssimImage {
[INFO] [stderr] 227 |             scale: all_sizes.into_par_iter().map(|s| {
[INFO] [stderr] 228 |                 DssimChanScale {
[INFO] [stderr] 229 |                     chan: s.into_par_iter().enumerate().map(|(n,l)| {
[INFO] [stderr] 230 |                         let w = l.width();
[INFO] [stderr] 231 |                         let h = l.height();
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:310:9
[INFO] [stderr]     |
[INFO] [stderr] 310 |         return (to_dssim(ssim_sum / weight_sum).into(), ssim_maps);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `(to_dssim(ssim_sum / weight_sum).into(), ssim_maps)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:384:9
[INFO] [stderr]     |
[INFO] [stderr] 384 |         return ImgVec::new(map_out, width, height);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `ImgVec::new(map_out, width, height)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/dssim.rs:390:5
[INFO] [stderr]     |
[INFO] [stderr] 390 |     return 1.0 / ssim.min(1.0) - 1.0;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `1.0 / ssim.min(1.0) - 1.0`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/dssim.rs:410:14
[INFO] [stderr]     |
[INFO] [stderr] 410 |     assert!((0.003297 - res).abs() < 0.0001, "res is {}", res);
[INFO] [stderr]     |              ^^^^^^^^ help: consider: `0.003_297`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/dssim.rs:417:13
[INFO] [stderr]     |
[INFO] [stderr] 417 |     assert!(0.000000000000001 > res);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^ help: consider: `0.000_000_000_000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/dssim.rs:418:19
[INFO] [stderr]     |
[INFO] [stderr] 418 |     assert!(res < 0.000000000000001);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^ help: consider: `0.000_000_000_000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/dssim.rs:451:19
[INFO] [stderr]     |
[INFO] [stderr] 451 |     assert!(res < 0.000001);
[INFO] [stderr]     |                   ^^^^^^^^ help: consider: `0.000_001`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:220:9
[INFO] [stderr]     |
[INFO] [stderr] 220 |         return Some(Img::new(scaled, half_width, half_height));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Some(Img::new(scaled, half_width, half_height))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:216:13
[INFO] [stderr]     |
[INFO] [stderr] 216 |             return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| Average4::average4(a[0], a[1], b[0], b[1]))
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| Average4::average4(a[0], a[1], b[0], b[1]))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:240:9
[INFO] [stderr]     |
[INFO] [stderr] 240 | /         return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 241 | |             a[0].min(a[1]).min(b[0].min(b[1]))
[INFO] [stderr] 242 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 240 |         top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 241 |             a[0].min(a[1]).min(b[0].min(b[1]))
[INFO] [stderr] 242 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:265:9
[INFO] [stderr]     |
[INFO] [stderr] 265 | /         return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 266 | |             (a[0].min(a[1]).min(b[0].min(b[1])) + ((a[0] + a[1] + b[0] + b[1]) * 0.25))*0.5
[INFO] [stderr] 267 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 265 |         top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 266 |             (a[0].min(a[1]).min(b[0].min(b[1])) + ((a[0] + a[1] + b[0] + b[1]) * 0.25))*0.5
[INFO] [stderr] 267 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/image.rs:290:9
[INFO] [stderr]     |
[INFO] [stderr] 290 | /         return top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 291 | |             (a[0] + a[1] + b[0] + b[1]) * 0.25
[INFO] [stderr] 292 | |         });
[INFO] [stderr]     | |___________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 290 |         top.chunks(2).zip(bot.chunks(2)).map(|(a,b)| {
[INFO] [stderr] 291 |             (a[0] + a[1] + b[0] + b[1]) * 0.25
[INFO] [stderr] 292 |         })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/tolab.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 | /         return (
[INFO] [stderr] 32 | |             Y * 1.16,
[INFO] [stderr] 33 | |             (86.2/ 220.0 + 500.0/ 220.0 * (X - Y)), /* 86 is a fudge to make the value positive */
[INFO] [stderr] 34 | |             (107.9/ 220.0 + 200.0/ 220.0 * (Y - Z)), /* 107 is a fudge to make the value positive */
[INFO] [stderr] 35 | |         );
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 31 |         (
[INFO] [stderr] 32 |             Y * 1.16,
[INFO] [stderr] 33 |             (86.2/ 220.0 + 500.0/ 220.0 * (X - Y)), /* 86 is a fudge to make the value positive */
[INFO] [stderr] 34 |             (107.9/ 220.0 + 200.0/ 220.0 * (Y - Z)), /* 107 is a fudge to make the value positive */
[INFO] [stderr] 35 |         )
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/dssim.rs:37:23
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn img1_img2_blur<'a>(&self, modified: &mut Self, tmp: &mut [I]) -> Vec<T>;
[INFO] [stderr]    |                       ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `dssim::Dssim`
[INFO] [stderr]    --> src/dssim.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 | /     pub fn new() -> Dssim {
[INFO] [stderr] 164 | |         Dssim {
[INFO] [stderr] 165 | |             scale_weights: DEFAULT_WEIGHTS[0..4].to_owned(),
[INFO] [stderr] 166 | |             save_maps_scales: 0,
[INFO] [stderr] 167 | |         }
[INFO] [stderr] 168 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 50  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/dssim.rs:285:63
[INFO] [stderr]     |
[INFO] [stderr] 285 |             let sum = half.buf.iter().fold(0., |sum, i| sum + *i as f64);
[INFO] [stderr]     |                                                               ^^^^^^^^^ help: try: `f64::from(*i)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/image.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         other.avg() as f64
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(other.avg())`
[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 `dstrow`
[INFO] [stderr]    --> src/blur.rs:146:22
[INFO] [stderr]     |
[INFO] [stderr] 146 |             for i in 1..width-1 {
[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] 146 |             for (i, <item>) in dstrow.iter_mut().enumerate().take(width-1).skip(1) {
[INFO] [stderr]     |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: re-implementing `PartialEq::ne` is unnecessary
[INFO] [stderr]   --> src/val.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | /     fn ne(&self, other: &Dssim) -> bool {
[INFO] [stderr] 37 | |         *self != other.0
[INFO] [stderr] 38 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::partialeq_ne_impl)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_ne_impl
[INFO] [stderr] 
[INFO] [stderr] warning: re-implementing `PartialEq::ne` is unnecessary
[INFO] [stderr]   --> src/val.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     fn ne(&self, other: &f64) -> bool {
[INFO] [stderr] 47 | |         self.0 != *other
[INFO] [stderr] 48 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_ne_impl
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/linear.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         (0..Self::Component::max_value() + 1)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `(0..=Self::Component::max_value())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/linear.rs:130:22
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let a_unit = self.1.clone().into() / M::max_value() as f32;
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let fx = ((self.r as f64 * 0.4124 + self.g as f64 * 0.3576 + self.b as f64 * 0.1805) / D65x) as f32;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^ help: try: `f64::from(self.r)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:21:45
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let fx = ((self.r as f64 * 0.4124 + self.g as f64 * 0.3576 + self.b as f64 * 0.1805) / D65x) as f32;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try: `f64::from(self.g)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:21:70
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let fx = ((self.r as f64 * 0.4124 + self.g as f64 * 0.3576 + self.b as f64 * 0.1805) / D65x) as f32;
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ help: try: `f64::from(self.b)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:22:20
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let fy = ((self.r as f64 * 0.2126 + self.g as f64 * 0.7152 + self.b as f64 * 0.0722) / D65y) as f32;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^ help: try: `f64::from(self.r)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:22:45
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let fy = ((self.r as f64 * 0.2126 + self.g as f64 * 0.7152 + self.b as f64 * 0.0722) / D65y) as f32;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try: `f64::from(self.g)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:22:70
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let fy = ((self.r as f64 * 0.2126 + self.g as f64 * 0.7152 + self.b as f64 * 0.0722) / D65y) as f32;
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ help: try: `f64::from(self.b)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let fz = ((self.r as f64 * 0.0193 + self.g as f64 * 0.1192 + self.b as f64 * 0.9505) / D65z) as f32;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^ help: try: `f64::from(self.r)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:23:45
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let fz = ((self.r as f64 * 0.0193 + self.g as f64 * 0.1192 + self.b as f64 * 0.9505) / D65z) as f32;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try: `f64::from(self.g)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:23:70
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let fz = ((self.r as f64 * 0.0193 + self.g as f64 * 0.1192 + self.b as f64 * 0.9505) / D65z) as f32;
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ help: try: `f64::from(self.b)`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/tolab.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / fn rgb_to_lab<'a, T: Copy + Sync + Send + 'static, F>(img: ImgRef<'a, T>, cb: F) -> Vec<GBitmap>
[INFO] [stderr] 88  | |     where F: Fn(T, usize) -> (f32, f32, f32) + Sync + Send + 'static
[INFO] [stderr] 89  | | {
[INFO] [stderr] 90  | |     let width = img.width();
[INFO] [stderr] ...   |
[INFO] [stderr] 125 | |     ];
[INFO] [stderr] 126 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: this lifetime isn't used in the function definition
[INFO] [stderr]   --> src/dssim.rs:37:23
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn img1_img2_blur<'a>(&self, modified: &mut Self, tmp: &mut [I]) -> Vec<T>;
[INFO] [stderr]    |                       ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::extra_unused_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#extra_unused_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `dssim::Dssim`
[INFO] [stderr]    --> src/dssim.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 | /     pub fn new() -> Dssim {
[INFO] [stderr] 164 | |         Dssim {
[INFO] [stderr] 165 | |             scale_weights: DEFAULT_WEIGHTS[0..4].to_owned(),
[INFO] [stderr] 166 | |             save_maps_scales: 0,
[INFO] [stderr] 167 | |         }
[INFO] [stderr] 168 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 50  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/dssim.rs:285:63
[INFO] [stderr]     |
[INFO] [stderr] 285 |             let sum = half.buf.iter().fold(0., |sum, i| sum + *i as f64);
[INFO] [stderr]     |                                                               ^^^^^^^^^ help: try: `f64::from(*i)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/image.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         other.avg() as f64
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(other.avg())`
[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 `dstrow`
[INFO] [stderr]    --> src/blur.rs:146:22
[INFO] [stderr]     |
[INFO] [stderr] 146 |             for i in 1..width-1 {
[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] 146 |             for (i, <item>) in dstrow.iter_mut().enumerate().take(width-1).skip(1) {
[INFO] [stderr]     |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     assert_eq!(0.25, dst[0]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::float_cmp)] on by default
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 |     assert_eq!(0.25, dst[0]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:226:5
[INFO] [stderr]     |
[INFO] [stderr] 226 |     assert_eq!(1./256., dst[0]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:226:5
[INFO] [stderr]     |
[INFO] [stderr] 226 |     assert_eq!(1./256., dst[0]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:227:5
[INFO] [stderr]     |
[INFO] [stderr] 227 |     assert_eq!(1./256., dst[5*5-1]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:227:5
[INFO] [stderr]     |
[INFO] [stderr] 227 |     assert_eq!(1./256., dst[5*5-1]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:231:5
[INFO] [stderr]     |
[INFO] [stderr] 231 |     assert_eq!(center, dst[2*5+2]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:231:5
[INFO] [stderr]     |
[INFO] [stderr] 231 |     assert_eq!(center, dst[2*5+2]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:269:5
[INFO] [stderr]     |
[INFO] [stderr] 269 |     assert_eq!(1., dst[3]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:269:5
[INFO] [stderr]     |
[INFO] [stderr] 269 |     assert_eq!(1., dst[3]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     assert_eq!(1., dst[3 * 4]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     assert_eq!(1., dst[3 * 4]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:271:5
[INFO] [stderr]     |
[INFO] [stderr] 271 |     assert_eq!(1., dst[4 * 4 - 1]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:271:5
[INFO] [stderr]     |
[INFO] [stderr] 271 |     assert_eq!(1., dst[4 * 4 - 1]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/blur.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     assert_eq!(exp, dst[0]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/blur.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     assert_eq!(exp, dst[0]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: re-implementing `PartialEq::ne` is unnecessary
[INFO] [stderr]   --> src/val.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | /     fn ne(&self, other: &Dssim) -> bool {
[INFO] [stderr] 37 | |         *self != other.0
[INFO] [stderr] 38 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::partialeq_ne_impl)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_ne_impl
[INFO] [stderr] 
[INFO] [stderr] warning: re-implementing `PartialEq::ne` is unnecessary
[INFO] [stderr]   --> src/val.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     fn ne(&self, other: &f64) -> bool {
[INFO] [stderr] 47 | |         self.0 != *other
[INFO] [stderr] 48 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_ne_impl
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/linear.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         (0..Self::Component::max_value() + 1)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `(0..=Self::Component::max_value())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/linear.rs:130:22
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let a_unit = self.1.clone().into() / M::max_value() as f32;
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let fx = ((self.r as f64 * 0.4124 + self.g as f64 * 0.3576 + self.b as f64 * 0.1805) / D65x) as f32;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^ help: try: `f64::from(self.r)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:21:45
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let fx = ((self.r as f64 * 0.4124 + self.g as f64 * 0.3576 + self.b as f64 * 0.1805) / D65x) as f32;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try: `f64::from(self.g)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:21:70
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let fx = ((self.r as f64 * 0.4124 + self.g as f64 * 0.3576 + self.b as f64 * 0.1805) / D65x) as f32;
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ help: try: `f64::from(self.b)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:22:20
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let fy = ((self.r as f64 * 0.2126 + self.g as f64 * 0.7152 + self.b as f64 * 0.0722) / D65y) as f32;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^ help: try: `f64::from(self.r)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:22:45
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let fy = ((self.r as f64 * 0.2126 + self.g as f64 * 0.7152 + self.b as f64 * 0.0722) / D65y) as f32;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try: `f64::from(self.g)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:22:70
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let fy = ((self.r as f64 * 0.2126 + self.g as f64 * 0.7152 + self.b as f64 * 0.0722) / D65y) as f32;
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ help: try: `f64::from(self.b)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let fz = ((self.r as f64 * 0.0193 + self.g as f64 * 0.1192 + self.b as f64 * 0.9505) / D65z) as f32;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^ help: try: `f64::from(self.r)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:23:45
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let fz = ((self.r as f64 * 0.0193 + self.g as f64 * 0.1192 + self.b as f64 * 0.9505) / D65z) as f32;
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^ help: try: `f64::from(self.g)`
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/tolab.rs:23:70
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let fz = ((self.r as f64 * 0.0193 + self.g as f64 * 0.1192 + self.b as f64 * 0.9505) / D65z) as f32;
[INFO] [stderr]    |                                                                      ^^^^^^^^^^^^^ help: try: `f64::from(self.b)`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/tolab.rs:87:1
[INFO] [stderr]     |
[INFO] [stderr] 87  | / fn rgb_to_lab<'a, T: Copy + Sync + Send + 'static, F>(img: ImgRef<'a, T>, cb: F) -> Vec<GBitmap>
[INFO] [stderr] 88  | |     where F: Fn(T, usize) -> (f32, f32, f32) + Sync + Send + 'static
[INFO] [stderr] 89  | | {
[INFO] [stderr] 90  | |     let width = img.width();
[INFO] [stderr] ...   |
[INFO] [stderr] 125 | |     ];
[INFO] [stderr] 126 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `dssim`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a51887b653f7d209e53522e278fb12e3c2ccc423e65609b628188f68969826b5"`
[INFO] running `"docker" "rm" "-f" "a51887b653f7d209e53522e278fb12e3c2ccc423e65609b628188f68969826b5"`
[INFO] [stdout] a51887b653f7d209e53522e278fb12e3c2ccc423e65609b628188f68969826b5