[INFO] updating cached repository moghir2004/programming_quiz-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/moghir2004/programming_quiz-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/moghir2004/programming_quiz-rust" "work/ex/clippy-test-run/sources/stable/gh/moghir2004/programming_quiz-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/moghir2004/programming_quiz-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/moghir2004/programming_quiz-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/moghir2004/programming_quiz-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/moghir2004/programming_quiz-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d4ed90a3aafbef1f17a0e54b476693ef31614dfb
[INFO] sha for GitHub repo moghir2004/programming_quiz-rust: d4ed90a3aafbef1f17a0e54b476693ef31614dfb
[INFO] validating manifest of moghir2004/programming_quiz-rust 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 moghir2004/programming_quiz-rust 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 moghir2004/programming_quiz-rust
[INFO] finished frobbing moghir2004/programming_quiz-rust
[INFO] frobbed toml for moghir2004/programming_quiz-rust written to work/ex/clippy-test-run/sources/stable/gh/moghir2004/programming_quiz-rust/Cargo.toml
[INFO] started frobbing moghir2004/programming_quiz-rust
[INFO] finished frobbing moghir2004/programming_quiz-rust
[INFO] frobbed toml for moghir2004/programming_quiz-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/moghir2004/programming_quiz-rust/Cargo.toml
[INFO] crate moghir2004/programming_quiz-rust 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 moghir2004/programming_quiz-rust 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/gh/moghir2004/programming_quiz-rust:/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] bb5432c5217a484a10139268522162f8f4e588cef5b1fb6905240a7efc556cb1
[INFO] running `"docker" "start" "-a" "bb5432c5217a484a10139268522162f8f4e588cef5b1fb6905240a7efc556cb1"`
[INFO] [stderr]     Checking programming_quizz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return ();
[INFO] [stderr]    |     ^^^^^^^^^^ help: remove `return` as shown: `()`
[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: unneeded `()`
[INFO] [stderr]   --> src/main.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return ();
[INFO] [stderr]    |            ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return ();
[INFO] [stderr]    |     ^^^^^^^^^^ help: remove `return` as shown: `()`
[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: unneeded `()`
[INFO] [stderr]   --> src/main.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return ();
[INFO] [stderr]    |            ^^ help: remove the `()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "bb5432c5217a484a10139268522162f8f4e588cef5b1fb6905240a7efc556cb1"`
[INFO] running `"docker" "rm" "-f" "bb5432c5217a484a10139268522162f8f4e588cef5b1fb6905240a7efc556cb1"`
[INFO] [stdout] bb5432c5217a484a10139268522162f8f4e588cef5b1fb6905240a7efc556cb1