[INFO] updating cached repository k-h-m/sigen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/k-h-m/sigen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/k-h-m/sigen" "work/ex/clippy-test-run/sources/stable/gh/k-h-m/sigen"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/k-h-m/sigen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/k-h-m/sigen" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/k-h-m/sigen"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/k-h-m/sigen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ad37bc05e77ebf7ab51a0942c08394ae2663233
[INFO] sha for GitHub repo k-h-m/sigen: 5ad37bc05e77ebf7ab51a0942c08394ae2663233
[INFO] validating manifest of k-h-m/sigen 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 k-h-m/sigen 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 k-h-m/sigen
[INFO] finished frobbing k-h-m/sigen
[INFO] frobbed toml for k-h-m/sigen written to work/ex/clippy-test-run/sources/stable/gh/k-h-m/sigen/Cargo.toml
[INFO] started frobbing k-h-m/sigen
[INFO] finished frobbing k-h-m/sigen
[INFO] frobbed toml for k-h-m/sigen written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/k-h-m/sigen/Cargo.toml
[INFO] crate k-h-m/sigen 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 k-h-m/sigen 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-2/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/gh/k-h-m/sigen:/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] 42d0d624e91e0cb39e48eb233b0df3155d8238562afc285f05d1a81a5f09597b
[INFO] running `"docker" "start" "-a" "42d0d624e91e0cb39e48eb233b0df3155d8238562afc285f05d1a81a5f09597b"`
[INFO] [stderr]     Checking sigen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: casting i16 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:128:20
[INFO] [stderr]     |
[INFO] [stderr] 128 |     let max_ampl = std::i16::MAX as f32;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(std::i16::MAX)`
[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: the function has a cyclomatic complexity of 33
[INFO] [stderr]    --> src/main.rs:222:1
[INFO] [stderr]     |
[INFO] [stderr] 222 | / fn main() {
[INFO] [stderr] 223 | |     let matches = App::new("Signal generator")
[INFO] [stderr] 224 | |         .version(crate_version!())
[INFO] [stderr] 225 | |         .arg(
[INFO] [stderr] ...   |
[INFO] [stderr] 351 | |     }
[INFO] [stderr] 352 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: casting i16 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:128:20
[INFO] [stderr]     |
[INFO] [stderr] 128 |     let max_ampl = std::i16::MAX as f32;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(std::i16::MAX)`
[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: the function has a cyclomatic complexity of 33
[INFO] [stderr]    --> src/main.rs:222:1
[INFO] [stderr]     |
[INFO] [stderr] 222 | / fn main() {
[INFO] [stderr] 223 | |     let matches = App::new("Signal generator")
[INFO] [stderr] 224 | |         .version(crate_version!())
[INFO] [stderr] 225 | |         .arg(
[INFO] [stderr] ...   |
[INFO] [stderr] 351 | |     }
[INFO] [stderr] 352 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "42d0d624e91e0cb39e48eb233b0df3155d8238562afc285f05d1a81a5f09597b"`
[INFO] running `"docker" "rm" "-f" "42d0d624e91e0cb39e48eb233b0df3155d8238562afc285f05d1a81a5f09597b"`
[INFO] [stdout] 42d0d624e91e0cb39e48eb233b0df3155d8238562afc285f05d1a81a5f09597b