[INFO] updating cached repository TurkeyMcMac/Game-of-Life
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/TurkeyMcMac/Game-of-Life
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/TurkeyMcMac/Game-of-Life" "work/ex/clippy-test-run/sources/stable/gh/TurkeyMcMac/Game-of-Life"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/TurkeyMcMac/Game-of-Life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/TurkeyMcMac/Game-of-Life" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/TurkeyMcMac/Game-of-Life"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/TurkeyMcMac/Game-of-Life'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49a44cf16f355fc0b854d5405a160ae17d6b5dc2
[INFO] sha for GitHub repo TurkeyMcMac/Game-of-Life: 49a44cf16f355fc0b854d5405a160ae17d6b5dc2
[INFO] validating manifest of TurkeyMcMac/Game-of-Life 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 TurkeyMcMac/Game-of-Life 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 TurkeyMcMac/Game-of-Life
[INFO] finished frobbing TurkeyMcMac/Game-of-Life
[INFO] frobbed toml for TurkeyMcMac/Game-of-Life written to work/ex/clippy-test-run/sources/stable/gh/TurkeyMcMac/Game-of-Life/Cargo.toml
[INFO] started frobbing TurkeyMcMac/Game-of-Life
[INFO] finished frobbing TurkeyMcMac/Game-of-Life
[INFO] frobbed toml for TurkeyMcMac/Game-of-Life written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/TurkeyMcMac/Game-of-Life/Cargo.toml
[INFO] crate TurkeyMcMac/Game-of-Life 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 TurkeyMcMac/Game-of-Life 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-6/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/TurkeyMcMac/Game-of-Life:/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] 06e4bbfa6c21bdee44dbaa3eff0c34bd0f3f2d8efe2e61ae6f40e9a9ab32d6fe
[INFO] running `"docker" "start" "-a" "06e4bbfa6c21bdee44dbaa3eff0c34bd0f3f2d8efe2e61ae6f40e9a9ab32d6fe"`
[INFO] [stderr]     Checking game_of_life v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/lib.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn realize(&self) -> Result<LifeCell, StateChangeError> {
[INFO] [stderr]    |                ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/lib.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn realize(&self) -> Result<LifeCell, StateChangeError> {
[INFO] [stderr]    |                ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> src/main.rs:13:32
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut file = File::open(&env::args().skip(1).next()
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/main.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 |             if let Err(_) = tx.send(NextStep) { return; }
[INFO] [stderr]    |             -------^^^^^^-------------------------------- help: try this: `if tx.send(NextStep).is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> src/main.rs:13:32
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut file = File::open(&env::args().skip(1).next()
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]   --> src/main.rs:23:20
[INFO] [stderr]    |
[INFO] [stderr] 23 |             if let Err(_) = tx.send(NextStep) { return; }
[INFO] [stderr]    |             -------^^^^^^-------------------------------- help: try this: `if tx.send(NextStep).is_err()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "06e4bbfa6c21bdee44dbaa3eff0c34bd0f3f2d8efe2e61ae6f40e9a9ab32d6fe"`
[INFO] running `"docker" "rm" "-f" "06e4bbfa6c21bdee44dbaa3eff0c34bd0f3f2d8efe2e61ae6f40e9a9ab32d6fe"`
[INFO] [stdout] 06e4bbfa6c21bdee44dbaa3eff0c34bd0f3f2d8efe2e61ae6f40e9a9ab32d6fe