[INFO] updating cached repository prakashpandey/guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/prakashpandey/guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/prakashpandey/guessing-game" "work/ex/clippy-test-run/sources/stable/gh/prakashpandey/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/prakashpandey/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/prakashpandey/guessing-game" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/prakashpandey/guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/prakashpandey/guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e56aa1ef36f241a497a558bbc3def36288d0d92
[INFO] sha for GitHub repo prakashpandey/guessing-game: 5e56aa1ef36f241a497a558bbc3def36288d0d92
[INFO] validating manifest of prakashpandey/guessing-game 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 prakashpandey/guessing-game 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 prakashpandey/guessing-game
[INFO] finished frobbing prakashpandey/guessing-game
[INFO] frobbed toml for prakashpandey/guessing-game written to work/ex/clippy-test-run/sources/stable/gh/prakashpandey/guessing-game/Cargo.toml
[INFO] started frobbing prakashpandey/guessing-game
[INFO] finished frobbing prakashpandey/guessing-game
[INFO] frobbed toml for prakashpandey/guessing-game written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/prakashpandey/guessing-game/Cargo.toml
[INFO] crate prakashpandey/guessing-game 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 prakashpandey/guessing-game 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-6/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/prakashpandey/guessing-game:/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] 67049fc54daa51596f02f3721089e389b23374863a4e33532dcf9a6bb7b91cf7
[INFO] running `"docker" "start" "-a" "67049fc54daa51596f02f3721089e389b23374863a4e33532dcf9a6bb7b91cf7"`
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:11:39
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn game(score: &mut i32, lower_limit: &i32, upper_limit: &i32) {
[INFO] [stderr]    |                                       ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:11:58
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn game(score: &mut i32, lower_limit: &i32, upper_limit: &i32) {
[INFO] [stderr]    |                                                          ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[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:15:2
[INFO] [stderr]    |
[INFO] [stderr] 15 |     io::stdout().flush().ok().expect("Could not flush stdio");
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn message(lower_limit: &i32, upper_limit: &i32, max_attempt: &i32) {
[INFO] [stderr]    |                         ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:41:44
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn message(lower_limit: &i32, upper_limit: &i32, max_attempt: &i32) {
[INFO] [stderr]    |                                            ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:41:63
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn message(lower_limit: &i32, upper_limit: &i32, max_attempt: &i32) {
[INFO] [stderr]    |                                                               ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:11:39
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn game(score: &mut i32, lower_limit: &i32, upper_limit: &i32) {
[INFO] [stderr]    |                                       ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:11:58
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn game(score: &mut i32, lower_limit: &i32, upper_limit: &i32) {
[INFO] [stderr]    |                                                          ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[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:15:2
[INFO] [stderr]    |
[INFO] [stderr] 15 |     io::stdout().flush().ok().expect("Could not flush stdio");
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:41:25
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn message(lower_limit: &i32, upper_limit: &i32, max_attempt: &i32) {
[INFO] [stderr]    |                         ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:41:44
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn message(lower_limit: &i32, upper_limit: &i32, max_attempt: &i32) {
[INFO] [stderr]    |                                            ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/main.rs:41:63
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn message(lower_limit: &i32, upper_limit: &i32, max_attempt: &i32) {
[INFO] [stderr]    |                                                               ^^^^ help: consider passing by value instead: `i32`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/main.rs:81:2
[INFO] [stderr]    |
[INFO] [stderr] 81 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(while_true)] on by default
[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:84:3
[INFO] [stderr]    |
[INFO] [stderr] 84 |         io::stdout().flush().ok().expect("Could not flush stdio");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] warning: denote infinite loops with `loop { ... }`
[INFO] [stderr]   --> src/main.rs:81:2
[INFO] [stderr]    |
[INFO] [stderr] 81 |     while true {
[INFO] [stderr]    |     ^^^^^^^^^^ help: use `loop`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(while_true)] on by default
[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:84:3
[INFO] [stderr]    |
[INFO] [stderr] 84 |         io::stdout().flush().ok().expect("Could not flush stdio");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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 0.53s
[INFO] running `"docker" "inspect" "67049fc54daa51596f02f3721089e389b23374863a4e33532dcf9a6bb7b91cf7"`
[INFO] running `"docker" "rm" "-f" "67049fc54daa51596f02f3721089e389b23374863a4e33532dcf9a6bb7b91cf7"`
[INFO] [stdout] 67049fc54daa51596f02f3721089e389b23374863a4e33532dcf9a6bb7b91cf7