[INFO] updating cached repository delaemon/rust-fizzbuzz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/delaemon/rust-fizzbuzz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/delaemon/rust-fizzbuzz" "work/ex/clippy-test-run/sources/stable/gh/delaemon/rust-fizzbuzz"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/delaemon/rust-fizzbuzz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/delaemon/rust-fizzbuzz" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/delaemon/rust-fizzbuzz"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/delaemon/rust-fizzbuzz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f1b7b7c8dc291690b8e70ec8ab973d0f1cf2d30
[INFO] sha for GitHub repo delaemon/rust-fizzbuzz: 9f1b7b7c8dc291690b8e70ec8ab973d0f1cf2d30
[INFO] validating manifest of delaemon/rust-fizzbuzz 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 delaemon/rust-fizzbuzz 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 delaemon/rust-fizzbuzz
[INFO] finished frobbing delaemon/rust-fizzbuzz
[INFO] frobbed toml for delaemon/rust-fizzbuzz written to work/ex/clippy-test-run/sources/stable/gh/delaemon/rust-fizzbuzz/Cargo.toml
[INFO] started frobbing delaemon/rust-fizzbuzz
[INFO] finished frobbing delaemon/rust-fizzbuzz
[INFO] frobbed toml for delaemon/rust-fizzbuzz written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/delaemon/rust-fizzbuzz/Cargo.toml
[INFO] crate delaemon/rust-fizzbuzz 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 delaemon/rust-fizzbuzz 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-2/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/delaemon/rust-fizzbuzz:/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] 2e23cf88c8d72cc5a3d984a15f4d60aaa6118053ddc95d66c6763ecd913ce882
[INFO] running `"docker" "start" "-a" "2e23cf88c8d72cc5a3d984a15f4d60aaa6118053ddc95d66c6763ecd913ce882"`
[INFO] [stderr]     Checking fizzbuzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:11:2
[INFO] [stderr]    |
[INFO] [stderr] 11 |     return n.to_string() + fizz + buzz;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `n.to_string() + fizz + buzz`
[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 return statement
[INFO] [stderr]   --> src/main.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 23 |     return n.to_string() + fizz + buzz;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `n.to_string() + fizz + buzz`
[INFO] [stderr]    |
[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 return statement
[INFO] [stderr]   --> src/main.rs:11:2
[INFO] [stderr]    |
[INFO] [stderr] 11 |     return n.to_string() + fizz + buzz;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `n.to_string() + fizz + buzz`
[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 return statement
[INFO] [stderr]   --> src/main.rs:23:2
[INFO] [stderr]    |
[INFO] [stderr] 23 |     return n.to_string() + fizz + buzz;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `n.to_string() + fizz + buzz`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizzbuzz1`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn fizzbuzz1(n:i32) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fizzbuzz1`
[INFO] [stderr]  --> src/main.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn fizzbuzz1(n:i32) -> String {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "2e23cf88c8d72cc5a3d984a15f4d60aaa6118053ddc95d66c6763ecd913ce882"`
[INFO] running `"docker" "rm" "-f" "2e23cf88c8d72cc5a3d984a15f4d60aaa6118053ddc95d66c6763ecd913ce882"`
[INFO] [stdout] 2e23cf88c8d72cc5a3d984a15f4d60aaa6118053ddc95d66c6763ecd913ce882