[INFO] updating cached repository maxbeutel/rust-hough-transform
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maxbeutel/rust-hough-transform
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maxbeutel/rust-hough-transform" "work/ex/clippy-test-run/sources/stable/gh/maxbeutel/rust-hough-transform"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/maxbeutel/rust-hough-transform'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maxbeutel/rust-hough-transform" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/maxbeutel/rust-hough-transform"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/maxbeutel/rust-hough-transform'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e28c0f7dbd810d40d0dbc1085b1b65ce70e2a084
[INFO] sha for GitHub repo maxbeutel/rust-hough-transform: e28c0f7dbd810d40d0dbc1085b1b65ce70e2a084
[INFO] validating manifest of maxbeutel/rust-hough-transform 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 maxbeutel/rust-hough-transform 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 maxbeutel/rust-hough-transform
[INFO] finished frobbing maxbeutel/rust-hough-transform
[INFO] frobbed toml for maxbeutel/rust-hough-transform written to work/ex/clippy-test-run/sources/stable/gh/maxbeutel/rust-hough-transform/Cargo.toml
[INFO] started frobbing maxbeutel/rust-hough-transform
[INFO] finished frobbing maxbeutel/rust-hough-transform
[INFO] frobbed toml for maxbeutel/rust-hough-transform written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/maxbeutel/rust-hough-transform/Cargo.toml
[INFO] crate maxbeutel/rust-hough-transform 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 maxbeutel/rust-hough-transform 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/maxbeutel/rust-hough-transform:/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] af0e3430605b14bf569d6e6f99332090f6d3353f48cd48be9c38e15ff3f39be2
[INFO] running `"docker" "start" "-a" "af0e3430605b14bf569d6e6f99332090f6d3353f48cd48be9c38e15ff3f39be2"`
[INFO] [stderr]     Checking rustc-serialize v0.3.20
[INFO] [stderr]    Compiling typenum v1.6.0
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stderr]     Checking jpeg-decoder v0.1.8
[INFO] [stderr]     Checking generic-array v0.2.1
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking alga v0.5.1
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking nalgebra v0.5.1
[INFO] [stderr]     Checking image v0.12.3
[INFO] [stderr]     Checking nalgebra v0.11.1
[INFO] [stderr]     Checking imageproc v0.7.0
[INFO] [stderr]     Checking hough-transform v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn dump_line_visualization(mut img: &mut image::DynamicImage,
[INFO] [stderr]    |                            ----^^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     deg as f64 * (pi / axis_size as f64)
[INFO] [stderr]    |     ^^^^^^^^^^ help: try: `f64::from(deg)`
[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:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |     deg as f64 * (pi / axis_size as f64)
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: try: `f64::from(axis_size)`
[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:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     ((img_width as f64).hypot(img_height as f64)).ceil()
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:26:31
[INFO] [stderr]    |
[INFO] [stderr] 26 |     ((img_width as f64).hypot(img_height as f64)).ceil()
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: try: `f64::from(img_height)`
[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 f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:31:7
[INFO] [stderr]    |
[INFO] [stderr] 31 |     ((r as f64 + g as f64 + b as f64) / 3.0).round() as u8
[INFO] [stderr]    |       ^^^^^^^^ help: try: `f64::from(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 u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |     ((r as f64 + g as f64 + b as f64) / 3.0).round() as u8
[INFO] [stderr]    |                  ^^^^^^^^ help: try: `f64::from(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 u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:31:29
[INFO] [stderr]    |
[INFO] [stderr] 31 |     ((r as f64 + g as f64 + b as f64) / 3.0).round() as u8
[INFO] [stderr]    |                             ^^^^^^^^ help: try: `f64::from(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: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | /     matrix.data
[INFO] [stderr] 38 | |         .iter()
[INFO] [stderr] 39 | |         .max()
[INFO] [stderr] 40 | |         .map(|m| *m)
[INFO] [stderr]    | |____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 37 |     matrix.data
[INFO] [stderr] 38 |         .iter()
[INFO] [stderr] 39 |         .max().cloned()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:55:30
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let n = na::min(((accumulator[(x as usize, y as usize)] as f64) * 255.0 /
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(accumulator[(x as usize, y as usize)])`
[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:56:30
[INFO] [stderr]    |
[INFO] [stderr] 56 |                              (max_accumulator_value as f64))
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(max_accumulator_value)`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let ref mut fout = File::create(houghspace_img_path).unwrap();
[INFO] [stderr]    |     ----^^^^^^^^^^^^---------------------------------------------- help: try: `let fout = &mut File::create(houghspace_img_path).unwrap();`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:140:18
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let theta = (theta as f64 / theta_axis_scale_factor as f64).round();
[INFO] [stderr]     |                  ^^^^^^^^^^^^ help: try: `f64::from(theta)`
[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:140:33
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let theta = (theta as f64 / theta_axis_scale_factor as f64).round();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(theta_axis_scale_factor)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:147:24
[INFO] [stderr]     |
[INFO] [stderr] 147 |     if theta == 0.0 || theta == 180.0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^ help: consider comparing them within some error: `(theta - 180.0).abs() < error`
[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/main.rs:147:24
[INFO] [stderr]     |
[INFO] [stderr] 147 |     if theta == 0.0 || theta == 180.0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:149:16
[INFO] [stderr]     |
[INFO] [stderr] 149 |         p1_y = img_height as f64;
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^ help: try: `f64::from(img_height)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:153:15
[INFO] [stderr]     |
[INFO] [stderr] 153 |     } else if theta == 90.0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^ help: consider comparing them within some error: `(theta - 90.0).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:153:15
[INFO] [stderr]     |
[INFO] [stderr] 153 |     } else if theta == 90.0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:157:16
[INFO] [stderr]     |
[INFO] [stderr] 157 |         p2_x = img_width as f64;
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:179:16
[INFO] [stderr]     |
[INFO] [stderr] 179 |         p2_x = img_width as f64;
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:182:21
[INFO] [stderr]     |
[INFO] [stderr] 182 |             p2_y = (img_width as f64 - p1_x.abs()) * deg2rad(alpha as u32, theta_axis_size).sin() /
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:185:21
[INFO] [stderr]     |
[INFO] [stderr] 185 |             p2_y = (img_width as f64 + p1_x.abs()) * deg2rad(alpha as u32, theta_axis_size).sin() /
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:195:26
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let rho_axis_half = (rho_axis_size as f64 / 2.0).round();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(rho_axis_size)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:200:19
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn is_edge(pixel: &image::Rgba<u8>) -> bool {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^ help: consider passing by value instead: `image::Rgba<u8>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:209:38
[INFO] [stderr]     |
[INFO] [stderr] 209 | fn invert_y(img_height: u32, coords: &(u32, u32)) -> (u32, u32) {
[INFO] [stderr]     |                                      ^^^^^^^^^^^ help: consider passing by value instead: `(u32, u32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:217:60
[INFO] [stderr]     |
[INFO] [stderr] 217 | fn calculate_rho(theta: u32, theta_axis_size: u32, coords: &(u32, u32)) -> f64 {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^ help: consider passing by value instead: `(u32, u32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     (x as f64) * cos + (y as f64) * sin
[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:222:24
[INFO] [stderr]     |
[INFO] [stderr] 222 |     (x as f64) * cos + (y as f64) * sin
[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: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 | /         writeln!(io::stderr(),
[INFO] [stderr] 261 | |                  "Usage: hough-image input_path houghspace_img_path line_visualization_img_path \
[INFO] [stderr] 262 | |                   theta_axis_scale_factor rho_axis_scale_factor houghspace_filter_threshold")
[INFO] [stderr] 263 | |             .unwrap();
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:304:18
[INFO] [stderr]     |
[INFO] [stderr] 304 |     let xdelta = (x1src as f64) - (x0src as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(x1src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:304:35
[INFO] [stderr]     |
[INFO] [stderr] 304 |     let xdelta = (x1src as f64) - (x0src as f64);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:305:18
[INFO] [stderr]     |
[INFO] [stderr] 305 |     let ydelta = (y1src as f64) - (y0src as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(y1src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:305:35
[INFO] [stderr]     |
[INFO] [stderr] 305 |     let ydelta = (y1src as f64) - (y0src as f64);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:315:19
[INFO] [stderr]     |
[INFO] [stderr] 315 |             q = -((edge_left as f64) - (x0src as f64));
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_left)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:315:40
[INFO] [stderr]     |
[INFO] [stderr] 315 |             q = -((edge_left as f64) - (x0src as f64));
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:319:17
[INFO] [stderr]     |
[INFO] [stderr] 319 |             q = (edge_right as f64) - (x0src as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_right)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:319:39
[INFO] [stderr]     |
[INFO] [stderr] 319 |             q = (edge_right as f64) - (x0src as f64);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:323:19
[INFO] [stderr]     |
[INFO] [stderr] 323 |             q = -((edge_bottom as f64) - (y0src as f64));
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_bottom)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:323:42
[INFO] [stderr]     |
[INFO] [stderr] 323 |             q = -((edge_bottom as f64) - (y0src as f64));
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |             q = (edge_top as f64) - (y0src as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_top)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:327:37
[INFO] [stderr]     |
[INFO] [stderr] 327 |             q = (edge_top as f64) - (y0src as f64);
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:355:18
[INFO] [stderr]     |
[INFO] [stderr] 355 |     let x0clip = (x0src as f64) + (t0 as f64) * (xdelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:356:18
[INFO] [stderr]     |
[INFO] [stderr] 356 |     let y0clip = (y0src as f64) + (t0 as f64) * (ydelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:357:18
[INFO] [stderr]     |
[INFO] [stderr] 357 |     let x1clip = (x0src as f64) + (t1 as f64) * (xdelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:358:18
[INFO] [stderr]     |
[INFO] [stderr] 358 |     let y1clip = (y0src as f64) + (t1 as f64) * (ydelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[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] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `hough-transform`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:28
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn dump_line_visualization(mut img: &mut image::DynamicImage,
[INFO] [stderr]    |                            ----^^^
[INFO] [stderr]    |                            |
[INFO] [stderr]    |                            help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     deg as f64 * (pi / axis_size as f64)
[INFO] [stderr]    |     ^^^^^^^^^^ help: try: `f64::from(deg)`
[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:21:24
[INFO] [stderr]    |
[INFO] [stderr] 21 |     deg as f64 * (pi / axis_size as f64)
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^ help: try: `f64::from(axis_size)`
[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:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 |     ((img_width as f64).hypot(img_height as f64)).ceil()
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:26:31
[INFO] [stderr]    |
[INFO] [stderr] 26 |     ((img_width as f64).hypot(img_height as f64)).ceil()
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: try: `f64::from(img_height)`
[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 f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:31:7
[INFO] [stderr]    |
[INFO] [stderr] 31 |     ((r as f64 + g as f64 + b as f64) / 3.0).round() as u8
[INFO] [stderr]    |       ^^^^^^^^ help: try: `f64::from(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 u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |     ((r as f64 + g as f64 + b as f64) / 3.0).round() as u8
[INFO] [stderr]    |                  ^^^^^^^^ help: try: `f64::from(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 u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:31:29
[INFO] [stderr]    |
[INFO] [stderr] 31 |     ((r as f64 + g as f64 + b as f64) / 3.0).round() as u8
[INFO] [stderr]    |                             ^^^^^^^^ help: try: `f64::from(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: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | /     matrix.data
[INFO] [stderr] 38 | |         .iter()
[INFO] [stderr] 39 | |         .max()
[INFO] [stderr] 40 | |         .map(|m| *m)
[INFO] [stderr]    | |____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 37 |     matrix.data
[INFO] [stderr] 38 |         .iter()
[INFO] [stderr] 39 |         .max().cloned()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:55:30
[INFO] [stderr]    |
[INFO] [stderr] 55 |             let n = na::min(((accumulator[(x as usize, y as usize)] as f64) * 255.0 /
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(accumulator[(x as usize, y as usize)])`
[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:56:30
[INFO] [stderr]    |
[INFO] [stderr] 56 |                              (max_accumulator_value as f64))
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(max_accumulator_value)`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let ref mut fout = File::create(houghspace_img_path).unwrap();
[INFO] [stderr]    |     ----^^^^^^^^^^^^---------------------------------------------- help: try: `let fout = &mut File::create(houghspace_img_path).unwrap();`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:140:18
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let theta = (theta as f64 / theta_axis_scale_factor as f64).round();
[INFO] [stderr]     |                  ^^^^^^^^^^^^ help: try: `f64::from(theta)`
[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:140:33
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let theta = (theta as f64 / theta_axis_scale_factor as f64).round();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(theta_axis_scale_factor)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:147:24
[INFO] [stderr]     |
[INFO] [stderr] 147 |     if theta == 0.0 || theta == 180.0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^ help: consider comparing them within some error: `(theta - 180.0).abs() < error`
[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/main.rs:147:24
[INFO] [stderr]     |
[INFO] [stderr] 147 |     if theta == 0.0 || theta == 180.0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:149:16
[INFO] [stderr]     |
[INFO] [stderr] 149 |         p1_y = img_height as f64;
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^ help: try: `f64::from(img_height)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:153:15
[INFO] [stderr]     |
[INFO] [stderr] 153 |     } else if theta == 90.0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^ help: consider comparing them within some error: `(theta - 90.0).abs() < error`
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:153:15
[INFO] [stderr]     |
[INFO] [stderr] 153 |     } else if theta == 90.0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#float_cmp
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:157:16
[INFO] [stderr]     |
[INFO] [stderr] 157 |         p2_x = img_width as f64;
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:179:16
[INFO] [stderr]     |
[INFO] [stderr] 179 |         p2_x = img_width as f64;
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:182:21
[INFO] [stderr]     |
[INFO] [stderr] 182 |             p2_y = (img_width as f64 - p1_x.abs()) * deg2rad(alpha as u32, theta_axis_size).sin() /
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:185:21
[INFO] [stderr]     |
[INFO] [stderr] 185 |             p2_y = (img_width as f64 + p1_x.abs()) * deg2rad(alpha as u32, theta_axis_size).sin() /
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_width)`
[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:195:26
[INFO] [stderr]     |
[INFO] [stderr] 195 |     let rho_axis_half = (rho_axis_size as f64 / 2.0).round();
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(rho_axis_size)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:200:19
[INFO] [stderr]     |
[INFO] [stderr] 200 | fn is_edge(pixel: &image::Rgba<u8>) -> bool {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^ help: consider passing by value instead: `image::Rgba<u8>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:209:38
[INFO] [stderr]     |
[INFO] [stderr] 209 | fn invert_y(img_height: u32, coords: &(u32, u32)) -> (u32, u32) {
[INFO] [stderr]     |                                      ^^^^^^^^^^^ help: consider passing by value instead: `(u32, u32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:217:60
[INFO] [stderr]     |
[INFO] [stderr] 217 | fn calculate_rho(theta: u32, theta_axis_size: u32, coords: &(u32, u32)) -> f64 {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^ help: consider passing by value instead: `(u32, u32)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     (x as f64) * cos + (y as f64) * sin
[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:222:24
[INFO] [stderr]     |
[INFO] [stderr] 222 |     (x as f64) * cos + (y as f64) * sin
[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: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]    --> src/main.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 | /         writeln!(io::stderr(),
[INFO] [stderr] 261 | |                  "Usage: hough-image input_path houghspace_img_path line_visualization_img_path \
[INFO] [stderr] 262 | |                   theta_axis_scale_factor rho_axis_scale_factor houghspace_filter_threshold")
[INFO] [stderr] 263 | |             .unwrap();
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:304:18
[INFO] [stderr]     |
[INFO] [stderr] 304 |     let xdelta = (x1src as f64) - (x0src as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(x1src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:304:35
[INFO] [stderr]     |
[INFO] [stderr] 304 |     let xdelta = (x1src as f64) - (x0src as f64);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:305:18
[INFO] [stderr]     |
[INFO] [stderr] 305 |     let ydelta = (y1src as f64) - (y0src as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(y1src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:305:35
[INFO] [stderr]     |
[INFO] [stderr] 305 |     let ydelta = (y1src as f64) - (y0src as f64);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:315:19
[INFO] [stderr]     |
[INFO] [stderr] 315 |             q = -((edge_left as f64) - (x0src as f64));
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_left)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:315:40
[INFO] [stderr]     |
[INFO] [stderr] 315 |             q = -((edge_left as f64) - (x0src as f64));
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:319:17
[INFO] [stderr]     |
[INFO] [stderr] 319 |             q = (edge_right as f64) - (x0src as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_right)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:319:39
[INFO] [stderr]     |
[INFO] [stderr] 319 |             q = (edge_right as f64) - (x0src as f64);
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:323:19
[INFO] [stderr]     |
[INFO] [stderr] 323 |             q = -((edge_bottom as f64) - (y0src as f64));
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_bottom)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:323:42
[INFO] [stderr]     |
[INFO] [stderr] 323 |             q = -((edge_bottom as f64) - (y0src as f64));
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:327:17
[INFO] [stderr]     |
[INFO] [stderr] 327 |             q = (edge_top as f64) - (y0src as f64);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^ help: try: `f64::from(edge_top)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:327:37
[INFO] [stderr]     |
[INFO] [stderr] 327 |             q = (edge_top as f64) - (y0src as f64);
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:355:18
[INFO] [stderr]     |
[INFO] [stderr] 355 |     let x0clip = (x0src as f64) + (t0 as f64) * (xdelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:356:18
[INFO] [stderr]     |
[INFO] [stderr] 356 |     let y0clip = (y0src as f64) + (t0 as f64) * (ydelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:357:18
[INFO] [stderr]     |
[INFO] [stderr] 357 |     let x1clip = (x0src as f64) + (t1 as f64) * (xdelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(x0src)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:358:18
[INFO] [stderr]     |
[INFO] [stderr] 358 |     let y1clip = (y0src as f64) + (t1 as f64) * (ydelta as f64);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^ help: try: `f64::from(y0src)`
[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] error: strict comparison of f32 or f64
[INFO] [stderr]    --> src/main.rs:438:9
[INFO] [stderr]     |
[INFO] [stderr] 438 |         assert_eq!(50.0, calculate_rho(0, theta_axis_size, &coords).round());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:438:9
[INFO] [stderr]     |
[INFO] [stderr] 438 |         assert_eq!(50.0, calculate_rho(0, theta_axis_size, &coords).round());
[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/main.rs:439:9
[INFO] [stderr]     |
[INFO] [stderr] 439 |         assert_eq!(64.0, calculate_rho(45, theta_axis_size, &coords).round());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:439:9
[INFO] [stderr]     |
[INFO] [stderr] 439 |         assert_eq!(64.0, calculate_rho(45, theta_axis_size, &coords).round());
[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/main.rs:440:9
[INFO] [stderr]     |
[INFO] [stderr] 440 |         assert_eq!(40.0, calculate_rho(90, theta_axis_size, &coords).round());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:440:9
[INFO] [stderr]     |
[INFO] [stderr] 440 |         assert_eq!(40.0, calculate_rho(90, theta_axis_size, &coords).round());
[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/main.rs:441:9
[INFO] [stderr]     |
[INFO] [stderr] 441 |         assert_eq!(-50.0, calculate_rho(180, theta_axis_size, &coords).round());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:441:9
[INFO] [stderr]     |
[INFO] [stderr] 441 |         assert_eq!(-50.0, calculate_rho(180, theta_axis_size, &coords).round());
[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/main.rs:442:9
[INFO] [stderr]     |
[INFO] [stderr] 442 |         assert_eq!(-40.0, calculate_rho(270, theta_axis_size, &coords).round());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:442:9
[INFO] [stderr]     |
[INFO] [stderr] 442 |         assert_eq!(-40.0, calculate_rho(270, theta_axis_size, &coords).round());
[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/main.rs:443:9
[INFO] [stderr]     |
[INFO] [stderr] 443 |         assert_eq!(-7.0, calculate_rho(135, theta_axis_size, &coords).round());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: std::f32::EPSILON and std::f64::EPSILON are available.
[INFO] [stderr]    --> src/main.rs:443:9
[INFO] [stderr]     |
[INFO] [stderr] 443 |         assert_eq!(-7.0, calculate_rho(135, theta_axis_size, &coords).round());
[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: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `hough-transform`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "af0e3430605b14bf569d6e6f99332090f6d3353f48cd48be9c38e15ff3f39be2"`
[INFO] running `"docker" "rm" "-f" "af0e3430605b14bf569d6e6f99332090f6d3353f48cd48be9c38e15ff3f39be2"`
[INFO] [stdout] af0e3430605b14bf569d6e6f99332090f6d3353f48cd48be9c38e15ff3f39be2