[INFO] updating cached repository xanxys/octree-art
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xanxys/octree-art
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xanxys/octree-art" "work/ex/clippy-test-run/sources/stable/gh/xanxys/octree-art"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/xanxys/octree-art'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xanxys/octree-art" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/xanxys/octree-art"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/xanxys/octree-art'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 156c094015ffa06f7d08cff1ae74abde7c4c549c
[INFO] sha for GitHub repo xanxys/octree-art: 156c094015ffa06f7d08cff1ae74abde7c4c549c
[INFO] validating manifest of xanxys/octree-art 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 xanxys/octree-art 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 xanxys/octree-art
[INFO] finished frobbing xanxys/octree-art
[INFO] frobbed toml for xanxys/octree-art written to work/ex/clippy-test-run/sources/stable/gh/xanxys/octree-art/Cargo.toml
[INFO] started frobbing xanxys/octree-art
[INFO] finished frobbing xanxys/octree-art
[INFO] frobbed toml for xanxys/octree-art written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/xanxys/octree-art/Cargo.toml
[INFO] crate xanxys/octree-art 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 xanxys/octree-art 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/xanxys/octree-art:/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] 07bfc643f6ba859dc5202f3d2aa91f7781f0dc9ed1dab3e0f654834cde214afd
[INFO] running `"docker" "start" "-a" "07bfc643f6ba859dc5202f3d2aa91f7781f0dc9ed1dab3e0f654834cde214afd"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling serde v1.0.21
[INFO] [stderr]    Compiling pulldown-cmark v0.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.0
[INFO] [stderr]    Compiling peg v0.5.4
[INFO] [stderr]     Checking stl_io v0.3.4
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]     Checking cgmath v0.15.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling backtrace v0.3.4
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.6
[INFO] [stderr]    Compiling cargo_metadata v0.3.2
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling ply-rs v0.1.1
[INFO] [stderr]     Checking octree-art v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> generate.rs:69:32
[INFO] [stderr]    |
[INFO] [stderr] 69 |           &Octree::Leaf(fill) => if fill {
[INFO] [stderr]    |  ________________________________^
[INFO] [stderr] 70 | |             if fill {
[INFO] [stderr] 71 | |                 column_r *= 1.5;
[INFO] [stderr] 72 | |             }
[INFO] [stderr] 73 | |         },
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 69 |         &Octree::Leaf(fill) => if fill && fill {
[INFO] [stderr] 70 |     column_r *= 1.5;
[INFO] [stderr] 71 | },
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> generate.rs:159:12
[INFO] [stderr]     |
[INFO] [stderr] 159 |       } else {
[INFO] [stderr]     |  ____________^
[INFO] [stderr] 160 | |         if relevant_tris.len() == 0 {
[INFO] [stderr] 161 | |             Octree::Leaf(false)
[INFO] [stderr] 162 | |         } else {
[INFO] [stderr] ...   |
[INFO] [stderr] 170 | |         }
[INFO] [stderr] 171 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 159 |     } else if relevant_tris.len() == 0 {
[INFO] [stderr] 160 |     Octree::Leaf(false)
[INFO] [stderr] 161 | } else {
[INFO] [stderr] 162 |     let children_cubes = divide_cube(cube);
[INFO] [stderr] 163 |     let mut children_cells: [Octree<bool>; 8] = Default::default();
[INFO] [stderr] 164 |     for ix in 0..8 {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> generate.rs:69:32
[INFO] [stderr]    |
[INFO] [stderr] 69 |           &Octree::Leaf(fill) => if fill {
[INFO] [stderr]    |  ________________________________^
[INFO] [stderr] 70 | |             if fill {
[INFO] [stderr] 71 | |                 column_r *= 1.5;
[INFO] [stderr] 72 | |             }
[INFO] [stderr] 73 | |         },
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 69 |         &Octree::Leaf(fill) => if fill && fill {
[INFO] [stderr] 70 |     column_r *= 1.5;
[INFO] [stderr] 71 | },
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> generate.rs:159:12
[INFO] [stderr]     |
[INFO] [stderr] 159 |       } else {
[INFO] [stderr]     |  ____________^
[INFO] [stderr] 160 | |         if relevant_tris.len() == 0 {
[INFO] [stderr] 161 | |             Octree::Leaf(false)
[INFO] [stderr] 162 | |         } else {
[INFO] [stderr] ...   |
[INFO] [stderr] 170 | |         }
[INFO] [stderr] 171 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 159 |     } else if relevant_tris.len() == 0 {
[INFO] [stderr] 160 |     Octree::Leaf(false)
[INFO] [stderr] 161 | } else {
[INFO] [stderr] 162 |     let children_cubes = divide_cube(cube);
[INFO] [stderr] 163 |     let mut children_cells: [Octree<bool>; 8] = Default::default();
[INFO] [stderr] 164 |     for ix in 0..8 {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `min`
[INFO] [stderr]    --> generate.rs:224:1
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn min(a: f64, b: f64, c: f64) -> f64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> input.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     match f.read_to_string(&mut contents) {
[INFO] [stderr] 15 | |         Err(e) => return Err(e),
[INFO] [stderr] 16 | |         _ => {},
[INFO] [stderr] 17 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(e) = f.read_to_string(&mut contents) { return Err(e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let ref vertices = &ply.payload["vertex"];
[INFO] [stderr]    |     ----^^^^^^^^^^^^-------------------------- help: try: `let vertices = &(&ply.payload["vertex"]);`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     for ref face in &ply.payload["face"] {
[INFO] [stderr]    |         ^^^^^^^^    -------------------- help: try: `let face = &&ply.payload["face"];`
[INFO] [stderr]    |
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let ref ixs = match &face["vertex_indices"] {   
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let ixs = &(match &face["vertex_indices"] {   
[INFO] [stderr] 30 |             &Property::ListInt(ref ixs) => ixs,
[INFO] [stderr] 31 |             _ => continue,
[INFO] [stderr] 32 |         });
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> input.rs:29:23
[INFO] [stderr]    |
[INFO] [stderr] 29 |           let ref ixs = match &face["vertex_indices"] {   
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 30 | |             &Property::ListInt(ref ixs) => ixs,
[INFO] [stderr] 31 | |             _ => continue,
[INFO] [stderr] 32 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let ref ixs = match face["vertex_indices"] {   
[INFO] [stderr] 30 |             Property::ListInt(ref ixs) => ixs,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |             let ref vertex = &vertices[ixs[i] as usize];
[INFO] [stderr]    |             ----^^^^^^^^^^------------------------------ help: try: `let vertex = &(&vertices[ixs[i] as usize]);`
[INFO] [stderr]    |
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> input.rs:39:42
[INFO] [stderr]    |
[INFO] [stderr] 39 |                     vs[i] = Vector3::new(*x as f64, *y as f64, *z as f64);
[INFO] [stderr]    |                                          ^^^^^^^^^ help: try: `f64::from(*x)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> input.rs:39:53
[INFO] [stderr]    |
[INFO] [stderr] 39 |                     vs[i] = Vector3::new(*x as f64, *y as f64, *z as f64);
[INFO] [stderr]    |                                                     ^^^^^^^^^ help: try: `f64::from(*y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> input.rs:39:64
[INFO] [stderr]    |
[INFO] [stderr] 39 |                     vs[i] = Vector3::new(*x as f64, *y as f64, *z as f64);
[INFO] [stderr]    |                                                                ^^^^^^^^^ help: try: `f64::from(*z)`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> input.rs:61:36
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Ok(v) if word.contains("e") => format!("{:.}", v),
[INFO] [stderr]    |                                    ^^^ help: try using a char instead: `'e'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> output.rs:9:36
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn write_stl(path: &str, mesh: &Vec<[V3; 3]>) -> io::Result<()> {
[INFO] [stderr]   |                                    ^^^^^^^^^^^^^ help: change this to: `&[[V3; 3]]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]   --> generate.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for p in tri.into_iter() {
[INFO] [stderr]    |                      ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> generate.rs:60:25
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let Cube(org, sz) = cube.clone();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: try removing the `clone` call: `cube`
[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: you don't need to add `&` to all patterns
[INFO] [stderr]   --> generate.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 | /     match octree {
[INFO] [stderr] 63 | |         &Octree::Br(ref children) => {
[INFO] [stderr] 64 | |             let cc = divide_cube(cube);
[INFO] [stderr] 65 | |             for i in 0..8 {
[INFO] [stderr] ...  |
[INFO] [stderr] 73 | |         },
[INFO] [stderr] 74 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 62 |     match *octree {
[INFO] [stderr] 63 |         Octree::Br(ref children) => {
[INFO] [stderr] 64 |             let cc = divide_cube(cube);
[INFO] [stderr] 65 |             for i in 0..8 {
[INFO] [stderr] 66 |                 gen_printable_aux(cc[i], &(*children)[i], level + 1, accum)
[INFO] [stderr] 67 |             }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `cc`
[INFO] [stderr]   --> generate.rs:65:22
[INFO] [stderr]    |
[INFO] [stderr] 65 |             for i in 0..8 {
[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] 65 |             for (i, <item>) in cc.iter().enumerate() {
[INFO] [stderr]    |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]   --> generate.rs:78:54
[INFO] [stderr]    |
[INFO] [stderr] 78 |     for r in [SquareMatrix::identity(), dr, dr * dr].into_iter() {
[INFO] [stderr]    |                                                      ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]   --> generate.rs:94:26
[INFO] [stderr]    |
[INFO] [stderr] 94 |     for z in [0.0, sz.z].into_iter() {
[INFO] [stderr]    |                          ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> generate.rs:108:26
[INFO] [stderr]     |
[INFO] [stderr] 108 |     for x in [0.0, sz.x].into_iter() {
[INFO] [stderr]     |                          ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> generate.rs:122:26
[INFO] [stderr]     |
[INFO] [stderr] 122 |     for y in [0.0, sz.y].into_iter() {
[INFO] [stderr]     |                          ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> generate.rs:152:29
[INFO] [stderr]     |
[INFO] [stderr] 152 | fn divide(cube: Cube, tris: &Vec<TriN>, remaining_level: u32) -> Octree<bool> {
[INFO] [stderr]     |                             ^^^^^^^^^^ help: change this to: `&[TriN]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> generate.rs:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |         .map(|&tri| tri.clone())
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: try removing the `clone` call: `tri`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> generate.rs:158:22
[INFO] [stderr]     |
[INFO] [stderr] 158 |         Octree::Leaf(relevant_tris.len() > 0)
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!relevant_tris.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> generate.rs:160:12
[INFO] [stderr]     |
[INFO] [stderr] 160 |         if relevant_tris.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `relevant_tris.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `cubes`
[INFO] [stderr]    --> generate.rs:177:14
[INFO] [stderr]     |
[INFO] [stderr] 177 |     for i in 0..8 {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     |
[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] 177 |     for (i, <item>) in cubes.iter_mut().enumerate() {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 | /     match output::write_stl(matches.value_of("OUTPUT").unwrap(), &gen_mesh) {
[INFO] [stderr] 40 | |         Err(e) => panic!("Couldn't write STL:\n{}", e),
[INFO] [stderr] 41 | |         _ => {}
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(e) = output::write_stl(matches.value_of("OUTPUT").unwrap(), &gen_mesh) { panic!("Couldn't write STL:\n{}", e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> main.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn print_mesh_stat(mesh: &Vec<[Vector3<f64>; 3]>) {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[[Vector3<f64>; 3]]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `octree-art`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: function is never used: `min`
[INFO] [stderr]    --> generate.rs:224:1
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn min(a: f64, b: f64, c: f64) -> f64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> input.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | /     match f.read_to_string(&mut contents) {
[INFO] [stderr] 15 | |         Err(e) => return Err(e),
[INFO] [stderr] 16 | |         _ => {},
[INFO] [stderr] 17 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(e) = f.read_to_string(&mut contents) { return Err(e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let ref vertices = &ply.payload["vertex"];
[INFO] [stderr]    |     ----^^^^^^^^^^^^-------------------------- help: try: `let vertices = &(&ply.payload["vertex"]);`
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     for ref face in &ply.payload["face"] {
[INFO] [stderr]    |         ^^^^^^^^    -------------------- help: try: `let face = &&ply.payload["face"];`
[INFO] [stderr]    |
[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: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:29:13
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let ref ixs = match &face["vertex_indices"] {   
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let ixs = &(match &face["vertex_indices"] {   
[INFO] [stderr] 30 |             &Property::ListInt(ref ixs) => ixs,
[INFO] [stderr] 31 |             _ => continue,
[INFO] [stderr] 32 |         });
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]   --> input.rs:29:23
[INFO] [stderr]    |
[INFO] [stderr] 29 |           let ref ixs = match &face["vertex_indices"] {   
[INFO] [stderr]    |  _______________________^
[INFO] [stderr] 30 | |             &Property::ListInt(ref ixs) => ixs,
[INFO] [stderr] 31 | |             _ => continue,
[INFO] [stderr] 32 | |         };
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let ref ixs = match face["vertex_indices"] {   
[INFO] [stderr] 30 |             Property::ListInt(ref ixs) => ixs,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]   --> input.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |             let ref vertex = &vertices[ixs[i] as usize];
[INFO] [stderr]    |             ----^^^^^^^^^^------------------------------ help: try: `let vertex = &(&vertices[ixs[i] as usize]);`
[INFO] [stderr]    |
[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 f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> input.rs:39:42
[INFO] [stderr]    |
[INFO] [stderr] 39 |                     vs[i] = Vector3::new(*x as f64, *y as f64, *z as f64);
[INFO] [stderr]    |                                          ^^^^^^^^^ help: try: `f64::from(*x)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> input.rs:39:53
[INFO] [stderr]    |
[INFO] [stderr] 39 |                     vs[i] = Vector3::new(*x as f64, *y as f64, *z as f64);
[INFO] [stderr]    |                                                     ^^^^^^^^^ help: try: `f64::from(*y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting f32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> input.rs:39:64
[INFO] [stderr]    |
[INFO] [stderr] 39 |                     vs[i] = Vector3::new(*x as f64, *y as f64, *z as f64);
[INFO] [stderr]    |                                                                ^^^^^^^^^ help: try: `f64::from(*z)`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> input.rs:61:36
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Ok(v) if word.contains("e") => format!("{:.}", v),
[INFO] [stderr]    |                                    ^^^ help: try using a char instead: `'e'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]  --> output.rs:9:36
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub fn write_stl(path: &str, mesh: &Vec<[V3; 3]>) -> io::Result<()> {
[INFO] [stderr]   |                                    ^^^^^^^^^^^^^ help: change this to: `&[[V3; 3]]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]   --> generate.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 |         for p in tri.into_iter() {
[INFO] [stderr]    |                      ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> generate.rs:60:25
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let Cube(org, sz) = cube.clone();
[INFO] [stderr]    |                         ^^^^^^^^^^^^ help: try removing the `clone` call: `cube`
[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: you don't need to add `&` to all patterns
[INFO] [stderr]   --> generate.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 | /     match octree {
[INFO] [stderr] 63 | |         &Octree::Br(ref children) => {
[INFO] [stderr] 64 | |             let cc = divide_cube(cube);
[INFO] [stderr] 65 | |             for i in 0..8 {
[INFO] [stderr] ...  |
[INFO] [stderr] 73 | |         },
[INFO] [stderr] 74 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 62 |     match *octree {
[INFO] [stderr] 63 |         Octree::Br(ref children) => {
[INFO] [stderr] 64 |             let cc = divide_cube(cube);
[INFO] [stderr] 65 |             for i in 0..8 {
[INFO] [stderr] 66 |                 gen_printable_aux(cc[i], &(*children)[i], level + 1, accum)
[INFO] [stderr] 67 |             }
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `cc`
[INFO] [stderr]   --> generate.rs:65:22
[INFO] [stderr]    |
[INFO] [stderr] 65 |             for i in 0..8 {
[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] 65 |             for (i, <item>) in cc.iter().enumerate() {
[INFO] [stderr]    |                 ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]   --> generate.rs:78:54
[INFO] [stderr]    |
[INFO] [stderr] 78 |     for r in [SquareMatrix::identity(), dr, dr * dr].into_iter() {
[INFO] [stderr]    |                                                      ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]   --> generate.rs:94:26
[INFO] [stderr]    |
[INFO] [stderr] 94 |     for z in [0.0, sz.z].into_iter() {
[INFO] [stderr]    |                          ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> generate.rs:108:26
[INFO] [stderr]     |
[INFO] [stderr] 108 |     for x in [0.0, sz.x].into_iter() {
[INFO] [stderr]     |                          ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> generate.rs:122:26
[INFO] [stderr]     |
[INFO] [stderr] 122 |     for y in [0.0, sz.y].into_iter() {
[INFO] [stderr]     |                          ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> generate.rs:152:29
[INFO] [stderr]     |
[INFO] [stderr] 152 | fn divide(cube: Cube, tris: &Vec<TriN>, remaining_level: u32) -> Octree<bool> {
[INFO] [stderr]     |                             ^^^^^^^^^^ help: change this to: `&[TriN]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> generate.rs:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |         .map(|&tri| tri.clone())
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: try removing the `clone` call: `tri`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> generate.rs:158:22
[INFO] [stderr]     |
[INFO] [stderr] 158 |         Octree::Leaf(relevant_tris.len() > 0)
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!relevant_tris.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> generate.rs:160:12
[INFO] [stderr]     |
[INFO] [stderr] 160 |         if relevant_tris.len() == 0 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `relevant_tris.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `cubes`
[INFO] [stderr]    --> generate.rs:177:14
[INFO] [stderr]     |
[INFO] [stderr] 177 |     for i in 0..8 {
[INFO] [stderr]     |              ^^^^
[INFO] [stderr]     |
[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] 177 |     for (i, <item>) in cubes.iter_mut().enumerate() {
[INFO] [stderr]     |         ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> main.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 | /     match output::write_stl(matches.value_of("OUTPUT").unwrap(), &gen_mesh) {
[INFO] [stderr] 40 | |         Err(e) => panic!("Couldn't write STL:\n{}", e),
[INFO] [stderr] 41 | |         _ => {}
[INFO] [stderr] 42 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(e) = output::write_stl(matches.value_of("OUTPUT").unwrap(), &gen_mesh) { panic!("Couldn't write STL:\n{}", e) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> main.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn print_mesh_stat(mesh: &Vec<[Vector3<f64>; 3]>) {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^ help: change this to: `&[[Vector3<f64>; 3]]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `octree-art`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "07bfc643f6ba859dc5202f3d2aa91f7781f0dc9ed1dab3e0f654834cde214afd"`
[INFO] running `"docker" "rm" "-f" "07bfc643f6ba859dc5202f3d2aa91f7781f0dc9ed1dab3e0f654834cde214afd"`
[INFO] [stdout] 07bfc643f6ba859dc5202f3d2aa91f7781f0dc9ed1dab3e0f654834cde214afd