[INFO] updating cached repository maxastyler/Spirograph
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/maxastyler/Spirograph
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/maxastyler/Spirograph" "work/ex/clippy-test-run/sources/stable/gh/maxastyler/Spirograph"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/maxastyler/Spirograph'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/maxastyler/Spirograph" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/maxastyler/Spirograph"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/maxastyler/Spirograph'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d639d179214179e4843bca5cbd646dc9a1959e5d
[INFO] sha for GitHub repo maxastyler/Spirograph: d639d179214179e4843bca5cbd646dc9a1959e5d
[INFO] validating manifest of maxastyler/Spirograph 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 maxastyler/Spirograph 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 maxastyler/Spirograph
[INFO] finished frobbing maxastyler/Spirograph
[INFO] frobbed toml for maxastyler/Spirograph written to work/ex/clippy-test-run/sources/stable/gh/maxastyler/Spirograph/Cargo.toml
[INFO] started frobbing maxastyler/Spirograph
[INFO] finished frobbing maxastyler/Spirograph
[INFO] frobbed toml for maxastyler/Spirograph written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/maxastyler/Spirograph/Cargo.toml
[INFO] crate maxastyler/Spirograph 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 maxastyler/Spirograph against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/maxastyler/Spirograph:/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] 6353575ee3ea032261f632e017d7b712c73b657482be1c3e78f199743665033b
[INFO] running `"docker" "start" "-a" "6353575ee3ea032261f632e017d7b712c73b657482be1c3e78f199743665033b"`
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking spirograph v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:88:76
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let img = spiro_image((2000, 2000), linspace(-1., 1., 20), path_points(100000), &spiral_path, &gen_envelope);
[INFO] [stderr]    |                                                                            ^^^^^^ help: consider: `100_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `path`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn path(t: f64) -> (f64, f64) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `envelope`
[INFO] [stderr]   --> src/main.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn envelope(t: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `double_envelope`
[INFO] [stderr]   --> src/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn double_envelope(h: f64) -> Box<Fn(f64) -> f64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:58:18
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let xf = (x as f64)/(n as f64 -1.) ;
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:58:30
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let xf = (x as f64)/(n as f64 -1.) ;
[INFO] [stderr]    |                              ^^^^^^^^ help: try: `f64::from(n)`
[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:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             xf+=img_res.0 as f64 / 2.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_res.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |             yf+=img_res.1 as f64 / 2.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_res.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:83:20
[INFO] [stderr]    |
[INFO] [stderr] 83 |     (0..r).map(|i| (i as f64) / (r as f64 - 1.0)).collect()
[INFO] [stderr]    |                    ^^^^^^^^^^ help: try: `f64::from(i)`
[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:83:34
[INFO] [stderr]    |
[INFO] [stderr] 83 |     (0..r).map(|i| (i as f64) / (r as f64 - 1.0)).collect()
[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: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:88:76
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let img = spiro_image((2000, 2000), linspace(-1., 1., 20), path_points(100000), &spiral_path, &gen_envelope);
[INFO] [stderr]    |                                                                            ^^^^^^ help: consider: `100_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `path`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn path(t: f64) -> (f64, f64) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `envelope`
[INFO] [stderr]   --> src/main.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn envelope(t: f64) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `double_envelope`
[INFO] [stderr]   --> src/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn double_envelope(h: f64) -> Box<Fn(f64) -> f64> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:58:18
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let xf = (x as f64)/(n as f64 -1.) ;
[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 u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:58:30
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let xf = (x as f64)/(n as f64 -1.) ;
[INFO] [stderr]    |                              ^^^^^^^^ help: try: `f64::from(n)`
[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:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             xf+=img_res.0 as f64 / 2.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_res.0)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |             yf+=img_res.1 as f64 / 2.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^ help: try: `f64::from(img_res.1)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/main.rs:83:20
[INFO] [stderr]    |
[INFO] [stderr] 83 |     (0..r).map(|i| (i as f64) / (r as f64 - 1.0)).collect()
[INFO] [stderr]    |                    ^^^^^^^^^^ help: try: `f64::from(i)`
[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:83:34
[INFO] [stderr]    |
[INFO] [stderr] 83 |     (0..r).map(|i| (i as f64) / (r as f64 - 1.0)).collect()
[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]     Finished dev [unoptimized + debuginfo] target(s) in 9.07s
[INFO] running `"docker" "inspect" "6353575ee3ea032261f632e017d7b712c73b657482be1c3e78f199743665033b"`
[INFO] running `"docker" "rm" "-f" "6353575ee3ea032261f632e017d7b712c73b657482be1c3e78f199743665033b"`
[INFO] [stdout] 6353575ee3ea032261f632e017d7b712c73b657482be1c3e78f199743665033b