[INFO] updating cached repository DdZ-Fred/rust_nth_fibonacci_number
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DdZ-Fred/rust_nth_fibonacci_number
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DdZ-Fred/rust_nth_fibonacci_number" "work/ex/clippy-test-run/sources/stable/gh/DdZ-Fred/rust_nth_fibonacci_number"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/DdZ-Fred/rust_nth_fibonacci_number'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DdZ-Fred/rust_nth_fibonacci_number" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/DdZ-Fred/rust_nth_fibonacci_number"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/DdZ-Fred/rust_nth_fibonacci_number'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1c32896563af82afb8aa4f5fd685c5af31f7f364
[INFO] sha for GitHub repo DdZ-Fred/rust_nth_fibonacci_number: 1c32896563af82afb8aa4f5fd685c5af31f7f364
[INFO] validating manifest of DdZ-Fred/rust_nth_fibonacci_number 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 DdZ-Fred/rust_nth_fibonacci_number 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 DdZ-Fred/rust_nth_fibonacci_number
[INFO] finished frobbing DdZ-Fred/rust_nth_fibonacci_number
[INFO] frobbed toml for DdZ-Fred/rust_nth_fibonacci_number written to work/ex/clippy-test-run/sources/stable/gh/DdZ-Fred/rust_nth_fibonacci_number/Cargo.toml
[INFO] started frobbing DdZ-Fred/rust_nth_fibonacci_number
[INFO] finished frobbing DdZ-Fred/rust_nth_fibonacci_number
[INFO] frobbed toml for DdZ-Fred/rust_nth_fibonacci_number written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/DdZ-Fred/rust_nth_fibonacci_number/Cargo.toml
[INFO] crate DdZ-Fred/rust_nth_fibonacci_number 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 DdZ-Fred/rust_nth_fibonacci_number against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/DdZ-Fred/rust_nth_fibonacci_number:/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] 269ea3af0eb04f6413eda4016bebe80b21972810be11f540e6cf3380b9551dec
[INFO] running `"docker" "start" "-a" "269ea3af0eb04f6413eda4016bebe80b21972810be11f540e6cf3380b9551dec"`
[INFO] [stderr]     Checking rust_nth_fibonacci_number v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/main.rs:32:14
[INFO] [stderr]    |
[INFO] [stderr] 32 |         _ => println!(""),
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/main.rs:32:14
[INFO] [stderr]    |
[INFO] [stderr] 32 |         _ => println!(""),
[INFO] [stderr]    |              ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "269ea3af0eb04f6413eda4016bebe80b21972810be11f540e6cf3380b9551dec"`
[INFO] running `"docker" "rm" "-f" "269ea3af0eb04f6413eda4016bebe80b21972810be11f540e6cf3380b9551dec"`
[INFO] [stdout] 269ea3af0eb04f6413eda4016bebe80b21972810be11f540e6cf3380b9551dec