[INFO] crate brainwords 0.1.0 is already in cache
[INFO] extracting crate brainwords 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/brainwords/0.1.0
[INFO] extracting crate brainwords 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/brainwords/0.1.0
[INFO] validating manifest of brainwords-0.1.0 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 brainwords-0.1.0 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 brainwords-0.1.0
[INFO] finished frobbing brainwords-0.1.0
[INFO] frobbed toml for brainwords-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/brainwords/0.1.0/Cargo.toml
[INFO] started frobbing brainwords-0.1.0
[INFO] finished frobbing brainwords-0.1.0
[INFO] frobbed toml for brainwords-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/brainwords/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting brainwords-0.1.0 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/brainwords/0.1.0:/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 -Dclippy::into_iter_on_array" "-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] 641d2f135afbeb1ea958a697d33e26173fad0150e126c29f43478dd742104303
[INFO] running `"docker" "start" "-a" "641d2f135afbeb1ea958a697d33e26173fad0150e126c29f43478dd742104303"`
[INFO] [stderr]     Checking brainwords v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/lib.rs:9:45
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let factor:u8 = if c > last_char {  ((c - last_char) as f64).sqrt().floor() as u8 } else {  ((last_char - c) as f64).sqrt().floor() as u8 };
[INFO] [stderr]   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(c - last_char)`
[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 u8 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/lib.rs:9:101
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let factor:u8 = if c > last_char {  ((c - last_char) as f64).sqrt().floor() as u8 } else {  ((last_char - c) as f64).sqrt().floor() as u8 };
[INFO] [stderr]   |                                                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(last_char - c)`
[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: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 |     if result.len() == 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `result.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/lib.rs:9:45
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let factor:u8 = if c > last_char {  ((c - last_char) as f64).sqrt().floor() as u8 } else {  ((last_char - c) as f64).sqrt().floor() as u8 };
[INFO] [stderr]   |                                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(c - last_char)`
[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 u8 to f64 may become silently lossy if types change
[INFO] [stderr]  --> src/lib.rs:9:101
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let factor:u8 = if c > last_char {  ((c - last_char) as f64).sqrt().floor() as u8 } else {  ((last_char - c) as f64).sqrt().floor() as u8 };
[INFO] [stderr]   |                                                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(last_char - c)`
[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: length comparison to zero
[INFO] [stderr]   --> src/lib.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 |     if result.len() == 0 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `result.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]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "641d2f135afbeb1ea958a697d33e26173fad0150e126c29f43478dd742104303"`
[INFO] running `"docker" "rm" "-f" "641d2f135afbeb1ea958a697d33e26173fad0150e126c29f43478dd742104303"`
[INFO] [stdout] 641d2f135afbeb1ea958a697d33e26173fad0150e126c29f43478dd742104303