[INFO] updating cached repository it6/tic-tac-toe
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/it6/tic-tac-toe
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/it6/tic-tac-toe" "work/ex/clippy-test-run/sources/stable/gh/it6/tic-tac-toe"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/it6/tic-tac-toe'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/it6/tic-tac-toe" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/it6/tic-tac-toe"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/it6/tic-tac-toe'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e834d85c47d420ad9e3059cea2356edc04898c1a
[INFO] sha for GitHub repo it6/tic-tac-toe: e834d85c47d420ad9e3059cea2356edc04898c1a
[INFO] validating manifest of it6/tic-tac-toe 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 it6/tic-tac-toe 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 it6/tic-tac-toe
[INFO] finished frobbing it6/tic-tac-toe
[INFO] frobbed toml for it6/tic-tac-toe written to work/ex/clippy-test-run/sources/stable/gh/it6/tic-tac-toe/Cargo.toml
[INFO] started frobbing it6/tic-tac-toe
[INFO] finished frobbing it6/tic-tac-toe
[INFO] frobbed toml for it6/tic-tac-toe written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/it6/tic-tac-toe/Cargo.toml
[INFO] crate it6/tic-tac-toe 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 it6/tic-tac-toe 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-1/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/it6/tic-tac-toe:/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] 1d1b16e47e52ad7e0830c766fb1a9efaa497d418a8605481f9514d452f4aad9f
[INFO] running `"docker" "start" "-a" "1d1b16e47e52ad7e0830c766fb1a9efaa497d418a8605481f9514d452f4aad9f"`
[INFO] [stderr]     Checking tic-tac-toe v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     return ans;
[INFO] [stderr]    |     ^^^^^^^^^^^ help: remove `return` as shown: `ans`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | /         io::stdin()
[INFO] [stderr] 14 | |             .read_line(&mut num)
[INFO] [stderr] 15 | |             .ok()
[INFO] [stderr] 16 | |             .expect("Couldn't read line");
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     return ans;
[INFO] [stderr]    |     ^^^^^^^^^^^ help: remove `return` as shown: `ans`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]   --> src/main.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | /         io::stdin()
[INFO] [stderr] 14 | |             .read_line(&mut num)
[INFO] [stderr] 15 | |             .ok()
[INFO] [stderr] 16 | |             .expect("Couldn't read line");
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "1d1b16e47e52ad7e0830c766fb1a9efaa497d418a8605481f9514d452f4aad9f"`
[INFO] running `"docker" "rm" "-f" "1d1b16e47e52ad7e0830c766fb1a9efaa497d418a8605481f9514d452f4aad9f"`
[INFO] [stdout] 1d1b16e47e52ad7e0830c766fb1a9efaa497d418a8605481f9514d452f4aad9f