[INFO] crate iter_utils 0.1.0 is already in cache
[INFO] extracting crate iter_utils 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/iter_utils/0.1.0
[INFO] extracting crate iter_utils 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/iter_utils/0.1.0
[INFO] validating manifest of iter_utils-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 iter_utils-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 iter_utils-0.1.0
[INFO] finished frobbing iter_utils-0.1.0
[INFO] frobbed toml for iter_utils-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/iter_utils/0.1.0/Cargo.toml
[INFO] started frobbing iter_utils-0.1.0
[INFO] finished frobbing iter_utils-0.1.0
[INFO] frobbed toml for iter_utils-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/iter_utils/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 iter_utils-0.1.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/iter_utils/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" "-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] 9e3ddc044531fb6743d803271446dc27fbe38eb4f7baa030f8f2c498de4b6720
[INFO] running `"docker" "start" "-a" "9e3ddc044531fb6743d803271446dc27fbe38eb4f7baa030f8f2c498de4b6720"`
[INFO] [stderr]     Checking iter_utils v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/lib.rs:22:19
[INFO] [stderr]    |
[INFO] [stderr] 22 |   let i2 = argmax(xs.iter().map(|&x| x));
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `xs.iter().cloned()`
[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] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "9e3ddc044531fb6743d803271446dc27fbe38eb4f7baa030f8f2c498de4b6720"`
[INFO] running `"docker" "rm" "-f" "9e3ddc044531fb6743d803271446dc27fbe38eb4f7baa030f8f2c498de4b6720"`
[INFO] [stdout] 9e3ddc044531fb6743d803271446dc27fbe38eb4f7baa030f8f2c498de4b6720