[INFO] updating cached repository dfockler/cryptopals
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dfockler/cryptopals
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dfockler/cryptopals" "work/ex/clippy-test-run/sources/stable/gh/dfockler/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/dfockler/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dfockler/cryptopals" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dfockler/cryptopals"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dfockler/cryptopals'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b6d248ac44b83b6503ceee90587bb3b5f8b41fbc
[INFO] sha for GitHub repo dfockler/cryptopals: b6d248ac44b83b6503ceee90587bb3b5f8b41fbc
[INFO] validating manifest of dfockler/cryptopals 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 dfockler/cryptopals 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 dfockler/cryptopals
[INFO] finished frobbing dfockler/cryptopals
[INFO] frobbed toml for dfockler/cryptopals written to work/ex/clippy-test-run/sources/stable/gh/dfockler/cryptopals/Cargo.toml
[INFO] started frobbing dfockler/cryptopals
[INFO] finished frobbing dfockler/cryptopals
[INFO] frobbed toml for dfockler/cryptopals written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dfockler/cryptopals/Cargo.toml
[INFO] crate dfockler/cryptopals 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 dfockler/cryptopals 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/dfockler/cryptopals:/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] eb27dcbd3abd6d69a5d1a42ef76c668d823cce2c8c0517603213265372d54f94
[INFO] running `"docker" "start" "-a" "eb27dcbd3abd6d69a5d1a42ef76c668d823cce2c8c0517603213265372d54f94"`
[INFO] [stderr]     Checking cryptopals v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `challenge1`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn challenge1() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge2`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn challenge2() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge3`
[INFO] [stderr]   --> src/main.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn challenge3() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge4`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn challenge4() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge5`
[INFO] [stderr]   --> src/main.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn challenge5() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge6`
[INFO] [stderr]   --> src/main.rs:69:1
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn challenge6() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `top_scored_value`
[INFO] [stderr]    --> src/main.rs:214:1
[INFO] [stderr]     |
[INFO] [stderr] 214 | fn top_scored_value(input: &[u8]) -> (i32, String, u8) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `score_string`
[INFO] [stderr]    --> src/main.rs:237:1
[INFO] [stderr]     |
[INFO] [stderr] 237 | fn score_string(input: &String) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_bytes`
[INFO] [stderr]    --> src/main.rs:275:1
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn hex_to_bytes(input: &str) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_base64`
[INFO] [stderr]    --> src/main.rs:279:1
[INFO] [stderr]     |
[INFO] [stderr] 279 | fn hex_to_base64(input: &str) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `xor`
[INFO] [stderr]    --> src/main.rs:283:1
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn xor(a: &Vec<u8>, b: &Vec<u8>) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `single_xor`
[INFO] [stderr]    --> src/main.rs:293:1
[INFO] [stderr]     |
[INFO] [stderr] 293 | fn single_xor(input: &[u8], value: u8) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_xor`
[INFO] [stderr]    --> src/main.rs:303:1
[INFO] [stderr]     |
[INFO] [stderr] 303 | fn repeating_xor(input: &str, key: &str) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_xor_decode`
[INFO] [stderr]    --> src/main.rs:315:1
[INFO] [stderr]     |
[INFO] [stderr] 315 | fn repeating_xor_decode(input: &[u8], key: &str) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hamming_distance`
[INFO] [stderr]    --> src/main.rs:327:1
[INFO] [stderr]     |
[INFO] [stderr] 327 | fn hamming_distance(a: &[u8], b: &[u8]) -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:237:24
[INFO] [stderr]     |
[INFO] [stderr] 237 | fn score_string(input: &String) -> i32 {
[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:283:11
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn xor(a: &Vec<u8>, b: &Vec<u8>) -> String {
[INFO] [stderr]     |           ^^^^^^^^ help: change this to: `&[u8]`
[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:283:24
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn xor(a: &Vec<u8>, b: &Vec<u8>) -> String {
[INFO] [stderr]     |                        ^^^^^^^^ help: change this to: `&[u8]`
[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: the variable `key_offset` is used as a loop counter. Consider using `for (key_offset, item) in input.as_bytes().enumerate()` or similar iterators
[INFO] [stderr]    --> src/main.rs:307:17
[INFO] [stderr]     |
[INFO] [stderr] 307 |     for byte in input.as_bytes() {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr] warning: the variable `key_offset` is used as a loop counter. Consider using `for (key_offset, item) in input.iter().enumerate()` or similar iterators
[INFO] [stderr]    --> src/main.rs:319:17
[INFO] [stderr]     |
[INFO] [stderr] 319 |     for byte in input.iter() {
[INFO] [stderr]     |                 ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge1`
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn challenge1() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge2`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn challenge2() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge3`
[INFO] [stderr]   --> src/main.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn challenge3() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge4`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn challenge4() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge5`
[INFO] [stderr]   --> src/main.rs:61:1
[INFO] [stderr]    |
[INFO] [stderr] 61 | fn challenge5() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `challenge6`
[INFO] [stderr]   --> src/main.rs:69:1
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn challenge6() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `top_scored_value`
[INFO] [stderr]    --> src/main.rs:214:1
[INFO] [stderr]     |
[INFO] [stderr] 214 | fn top_scored_value(input: &[u8]) -> (i32, String, u8) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `score_string`
[INFO] [stderr]    --> src/main.rs:237:1
[INFO] [stderr]     |
[INFO] [stderr] 237 | fn score_string(input: &String) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_bytes`
[INFO] [stderr]    --> src/main.rs:275:1
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn hex_to_bytes(input: &str) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hex_to_base64`
[INFO] [stderr]    --> src/main.rs:279:1
[INFO] [stderr]     |
[INFO] [stderr] 279 | fn hex_to_base64(input: &str) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `xor`
[INFO] [stderr]    --> src/main.rs:283:1
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn xor(a: &Vec<u8>, b: &Vec<u8>) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `single_xor`
[INFO] [stderr]    --> src/main.rs:293:1
[INFO] [stderr]     |
[INFO] [stderr] 293 | fn single_xor(input: &[u8], value: u8) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_xor`
[INFO] [stderr]    --> src/main.rs:303:1
[INFO] [stderr]     |
[INFO] [stderr] 303 | fn repeating_xor(input: &str, key: &str) -> Vec<u8> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repeating_xor_decode`
[INFO] [stderr]    --> src/main.rs:315:1
[INFO] [stderr]     |
[INFO] [stderr] 315 | fn repeating_xor_decode(input: &[u8], key: &str) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `hamming_distance`
[INFO] [stderr]    --> src/main.rs:327:1
[INFO] [stderr]     |
[INFO] [stderr] 327 | fn hamming_distance(a: &[u8], b: &[u8]) -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]    --> src/main.rs:237:24
[INFO] [stderr]     |
[INFO] [stderr] 237 | fn score_string(input: &String) -> i32 {
[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:283:11
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn xor(a: &Vec<u8>, b: &Vec<u8>) -> String {
[INFO] [stderr]     |           ^^^^^^^^ help: change this to: `&[u8]`
[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:283:24
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn xor(a: &Vec<u8>, b: &Vec<u8>) -> String {
[INFO] [stderr]     |                        ^^^^^^^^ help: change this to: `&[u8]`
[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: the variable `key_offset` is used as a loop counter. Consider using `for (key_offset, item) in input.as_bytes().enumerate()` or similar iterators
[INFO] [stderr]    --> src/main.rs:307:17
[INFO] [stderr]     |
[INFO] [stderr] 307 |     for byte in input.as_bytes() {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr] warning: the variable `key_offset` is used as a loop counter. Consider using `for (key_offset, item) in input.iter().enumerate()` or similar iterators
[INFO] [stderr]    --> src/main.rs:319:17
[INFO] [stderr]     |
[INFO] [stderr] 319 |     for byte in input.iter() {
[INFO] [stderr]     |                 ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "eb27dcbd3abd6d69a5d1a42ef76c668d823cce2c8c0517603213265372d54f94"`
[INFO] running `"docker" "rm" "-f" "eb27dcbd3abd6d69a5d1a42ef76c668d823cce2c8c0517603213265372d54f94"`
[INFO] [stdout] eb27dcbd3abd6d69a5d1a42ef76c668d823cce2c8c0517603213265372d54f94