[INFO] updating cached repository nrstepanek/advent-of-code-2018-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nrstepanek/advent-of-code-2018-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nrstepanek/advent-of-code-2018-rust" "work/ex/clippy-test-run/sources/stable/gh/nrstepanek/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/nrstepanek/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nrstepanek/advent-of-code-2018-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nrstepanek/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nrstepanek/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4fde8f4cbfbbe1113ef597dafa8387ff82eb9b8b
[INFO] sha for GitHub repo nrstepanek/advent-of-code-2018-rust: 4fde8f4cbfbbe1113ef597dafa8387ff82eb9b8b
[INFO] validating manifest of nrstepanek/advent-of-code-2018-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 nrstepanek/advent-of-code-2018-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 nrstepanek/advent-of-code-2018-rust
[INFO] finished frobbing nrstepanek/advent-of-code-2018-rust
[INFO] frobbed toml for nrstepanek/advent-of-code-2018-rust written to work/ex/clippy-test-run/sources/stable/gh/nrstepanek/advent-of-code-2018-rust/Cargo.toml
[INFO] started frobbing nrstepanek/advent-of-code-2018-rust
[INFO] finished frobbing nrstepanek/advent-of-code-2018-rust
[INFO] frobbed toml for nrstepanek/advent-of-code-2018-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/nrstepanek/advent-of-code-2018-rust/Cargo.toml
[INFO] crate nrstepanek/advent-of-code-2018-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 nrstepanek/advent-of-code-2018-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/nrstepanek/advent-of-code-2018-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] 9db23f15d8710912112603879f75ec9b167a8769e8cc03da65cab003523d8690
[INFO] running `"docker" "start" "-a" "9db23f15d8710912112603879f75ec9b167a8769e8cc03da65cab003523d8690"`
[INFO] [stderr]     Checking advent-of-code-2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/boxids.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     return duplicates * triplets;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `duplicates * triplets`
[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/boxids.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     return duplicates * triplets;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `duplicates * triplets`
[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: function is never used: `calculate_frequency`
[INFO] [stderr]  --> src/frequency.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn calculate_frequency(input: &String) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_duplicate_frequency`
[INFO] [stderr]   --> src/frequency.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn find_duplicate_frequency(input: &String) -> Option<i32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/frequency.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_boxids_checksum`
[INFO] [stderr]  --> src/boxids.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn get_boxids_checksum(input: &String) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `find_common_chars`
[INFO] [stderr]   --> src/boxids.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn find_common_chars(input: &String) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/boxids.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/frequency.rs:4:31
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn calculate_frequency(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: single-character string constant used as pattern
[INFO] [stderr]  --> src/frequency.rs:5:35
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let input_lines = input.split("\n");
[INFO] [stderr]   |                                   ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/frequency.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn find_duplicate_frequency(input: &String) -> Option<i32> {
[INFO] [stderr]    |                                    ^^^^^^^ help: change this to: `&str`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/frequency.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |         for line in input.split("\n") {
[INFO] [stderr]    |                                 ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/boxids.rs:5:31
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn get_boxids_checksum(input: &String) -> i32 {
[INFO] [stderr]   |                               ^^^^^^^ help: change this to: `&str`
[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: single-character string constant used as pattern
[INFO] [stderr]  --> src/boxids.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let input_lines = input.split("\n");
[INFO] [stderr]   |                                   ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to want to iterate on a map's values
[INFO] [stderr]   --> src/boxids.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |         for (_, count) in &char_count{
[INFO] [stderr]    |                           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::for_kv_map)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_kv_map
[INFO] [stderr] help: use the corresponding method
[INFO] [stderr]    |
[INFO] [stderr] 18 |         for count in char_count.values(){
[INFO] [stderr]    |             ^^^^^    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/boxids.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn find_common_chars(input: &String) -> String {
[INFO] [stderr]    |                             ^^^^^^^ help: change this to: `&str`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/boxids.rs:37:46
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let input_lines: Vec<&str> = input.split("\n").collect();
[INFO] [stderr]    |                                              ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is only used to index `input_lines`.
[INFO] [stderr]   --> src/boxids.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for j in (i + 1)..num_ids {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for <item> in input_lines.iter().take(num_ids).skip((i + 1)) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `differentChars` should have a snake case name such as `different_chars`
[INFO] [stderr]   --> src/boxids.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             let mut differentChars: i32 = 0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:14:39
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let parts: Vec<&str> = line.split(" ").collect();
[INFO] [stderr]    |                                       ^^^ help: try using a char instead: `' '`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:17:45
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let offsets: Vec<&str> = parts[2].split(",").collect();
[INFO] [stderr]    |                                             ^^^ help: try using a char instead: `','`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:18:43
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let sizes: Vec<&str> = parts[3].split("x").collect();
[INFO] [stderr]    |                                           ^^^ help: try using a char instead: `'x'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:29:35
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let input_lines = input.split("\n");
[INFO] [stderr]    |                                   ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[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/fabric.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn get_fabric_size(claims: &Vec<Claim>) -> (i32, i32) {
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: change this to: `&[Claim]`
[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/fabric.rs:56:38
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn count_overlapping_squares(claims: &Vec<Claim>) -> i32 {
[INFO] [stderr]    |                                      ^^^^^^^^^^^ help: change this to: `&[Claim]`
[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/fabric.rs:77:32
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn find_isolated_claim(claims: &Vec<Claim>) -> Option<i32> {
[INFO] [stderr]    |                                ^^^^^^^^^^^ help: change this to: `&[Claim]`
[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: function is never used: `main`
[INFO] [stderr]   --> src/frequency.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main`
[INFO] [stderr]   --> src/boxids.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn main() {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/frequency.rs:4:31
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn calculate_frequency(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: single-character string constant used as pattern
[INFO] [stderr]  --> src/frequency.rs:5:35
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let input_lines = input.split("\n");
[INFO] [stderr]   |                                   ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/frequency.rs:24:36
[INFO] [stderr]    |
[INFO] [stderr] 24 | fn find_duplicate_frequency(input: &String) -> Option<i32> {
[INFO] [stderr]    |                                    ^^^^^^^ help: change this to: `&str`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/frequency.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |         for line in input.split("\n") {
[INFO] [stderr]    |                                 ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]  --> src/boxids.rs:5:31
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn get_boxids_checksum(input: &String) -> i32 {
[INFO] [stderr]   |                               ^^^^^^^ help: change this to: `&str`
[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: single-character string constant used as pattern
[INFO] [stderr]  --> src/boxids.rs:6:35
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let input_lines = input.split("\n");
[INFO] [stderr]   |                                   ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to want to iterate on a map's values
[INFO] [stderr]   --> src/boxids.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |         for (_, count) in &char_count{
[INFO] [stderr]    |                           ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::for_kv_map)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#for_kv_map
[INFO] [stderr] help: use the corresponding method
[INFO] [stderr]    |
[INFO] [stderr] 18 |         for count in char_count.values(){
[INFO] [stderr]    |             ^^^^^    ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/boxids.rs:36:29
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn find_common_chars(input: &String) -> String {
[INFO] [stderr]    |                             ^^^^^^^ help: change this to: `&str`
[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: single-character string constant used as pattern
[INFO] [stderr]   --> src/boxids.rs:37:46
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let input_lines: Vec<&str> = input.split("\n").collect();
[INFO] [stderr]    |                                              ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `j` is only used to index `input_lines`.
[INFO] [stderr]   --> src/boxids.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for j in (i + 1)..num_ids {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for <item> in input_lines.iter().take(num_ids).skip((i + 1)) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `differentChars` should have a snake case name such as `different_chars`
[INFO] [stderr]   --> src/boxids.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             let mut differentChars: i32 = 0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:14:39
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let parts: Vec<&str> = line.split(" ").collect();
[INFO] [stderr]    |                                       ^^^ help: try using a char instead: `' '`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:17:45
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let offsets: Vec<&str> = parts[2].split(",").collect();
[INFO] [stderr]    |                                             ^^^ help: try using a char instead: `','`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:18:43
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let sizes: Vec<&str> = parts[3].split("x").collect();
[INFO] [stderr]    |                                           ^^^ help: try using a char instead: `'x'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/fabric.rs:29:35
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let input_lines = input.split("\n");
[INFO] [stderr]    |                                   ^^^^ help: try using a char instead: `'\n'`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[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/fabric.rs:42:28
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn get_fabric_size(claims: &Vec<Claim>) -> (i32, i32) {
[INFO] [stderr]    |                            ^^^^^^^^^^^ help: change this to: `&[Claim]`
[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/fabric.rs:56:38
[INFO] [stderr]    |
[INFO] [stderr] 56 | fn count_overlapping_squares(claims: &Vec<Claim>) -> i32 {
[INFO] [stderr]    |                                      ^^^^^^^^^^^ help: change this to: `&[Claim]`
[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/fabric.rs:77:32
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn find_isolated_claim(claims: &Vec<Claim>) -> Option<i32> {
[INFO] [stderr]    |                                ^^^^^^^^^^^ help: change this to: `&[Claim]`
[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 1.04s
[INFO] running `"docker" "inspect" "9db23f15d8710912112603879f75ec9b167a8769e8cc03da65cab003523d8690"`
[INFO] running `"docker" "rm" "-f" "9db23f15d8710912112603879f75ec9b167a8769e8cc03da65cab003523d8690"`
[INFO] [stdout] 9db23f15d8710912112603879f75ec9b167a8769e8cc03da65cab003523d8690