[INFO] updating cached repository dcode-youtube/hangman-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dcode-youtube/hangman-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dcode-youtube/hangman-rust" "work/ex/clippy-test-run/sources/stable/gh/dcode-youtube/hangman-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/dcode-youtube/hangman-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dcode-youtube/hangman-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dcode-youtube/hangman-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dcode-youtube/hangman-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 513d3efa41ec716d94c9e91fb796ac4bb2c7dc95
[INFO] sha for GitHub repo dcode-youtube/hangman-rust: 513d3efa41ec716d94c9e91fb796ac4bb2c7dc95
[INFO] validating manifest of dcode-youtube/hangman-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 dcode-youtube/hangman-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 dcode-youtube/hangman-rust
[INFO] finished frobbing dcode-youtube/hangman-rust
[INFO] frobbed toml for dcode-youtube/hangman-rust written to work/ex/clippy-test-run/sources/stable/gh/dcode-youtube/hangman-rust/Cargo.toml
[INFO] started frobbing dcode-youtube/hangman-rust
[INFO] finished frobbing dcode-youtube/hangman-rust
[INFO] frobbed toml for dcode-youtube/hangman-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dcode-youtube/hangman-rust/Cargo.toml
[INFO] crate dcode-youtube/hangman-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 dcode-youtube/hangman-rust against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/dcode-youtube/hangman-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] 543f8d1652e7bb8f992317123317673f3e9013154f5170f0341869392ec56fb8
[INFO] running `"docker" "start" "-a" "543f8d1652e7bb8f992317123317673f3e9013154f5170f0341869392ec56fb8"`
[INFO] [stderr]     Checking hangman-demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     return String::from(available_words[random_index]);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `String::from(available_words[random_index])`
[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:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     return letters;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `letters`
[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:139:30
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 Some(c) => { return c; }
[INFO] [stderr]     |                              ^^^^^^^^^ help: remove `return` as shown: `c`
[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:140:27
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 None => { return '*'; }
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: remove `return` as shown: `'*'`
[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:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |         Err(_) => { return '*'; }
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: remove `return` as shown: `'*'`
[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:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     return GameProgress::Lost;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `GameProgress::Lost`
[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: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:97:25
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn create_letters(word: &String) -> Vec<Letter> {
[INFO] [stderr]    |                         ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     return String::from(available_words[random_index]);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `String::from(available_words[random_index])`
[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:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     return letters;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `letters`
[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:139:30
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 Some(c) => { return c; }
[INFO] [stderr]     |                              ^^^^^^^^^ help: remove `return` as shown: `c`
[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:140:27
[INFO] [stderr]     |
[INFO] [stderr] 140 |                 None => { return '*'; }
[INFO] [stderr]     |                           ^^^^^^^^^^^ help: remove `return` as shown: `'*'`
[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:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |         Err(_) => { return '*'; }
[INFO] [stderr]     |                     ^^^^^^^^^^^ help: remove `return` as shown: `'*'`
[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:166:5
[INFO] [stderr]     |
[INFO] [stderr] 166 |     return GameProgress::Lost;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `GameProgress::Lost`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:112:30
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn display_progress(letters: &Vec<Letter>) {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: change this to: `&[Letter]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:149:44
[INFO] [stderr]     |
[INFO] [stderr] 149 | fn check_progress(turns_left: u8, letters: &Vec<Letter>) -> GameProgress {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^ help: change this to: `&[Letter]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/main.rs:97:25
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn create_letters(word: &String) -> Vec<Letter> {
[INFO] [stderr]    |                         ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:112:30
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn display_progress(letters: &Vec<Letter>) {
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: change this to: `&[Letter]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/main.rs:149:44
[INFO] [stderr]     |
[INFO] [stderr] 149 | fn check_progress(turns_left: u8, letters: &Vec<Letter>) -> GameProgress {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^ help: change this to: `&[Letter]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "543f8d1652e7bb8f992317123317673f3e9013154f5170f0341869392ec56fb8"`
[INFO] running `"docker" "rm" "-f" "543f8d1652e7bb8f992317123317673f3e9013154f5170f0341869392ec56fb8"`
[INFO] [stdout] 543f8d1652e7bb8f992317123317673f3e9013154f5170f0341869392ec56fb8