[INFO] updating cached repository cesare/rust-euler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cesare/rust-euler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-euler" "work/ex/clippy-test-run/sources/stable/gh/cesare/rust-euler"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/cesare/rust-euler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-euler" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/cesare/rust-euler"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/cesare/rust-euler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0d02961d4e944a54351220a3452b9fa6291dfb43
[INFO] sha for GitHub repo cesare/rust-euler: 0d02961d4e944a54351220a3452b9fa6291dfb43
[INFO] validating manifest of cesare/rust-euler 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 cesare/rust-euler 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 cesare/rust-euler
[INFO] finished frobbing cesare/rust-euler
[INFO] frobbed toml for cesare/rust-euler written to work/ex/clippy-test-run/sources/stable/gh/cesare/rust-euler/Cargo.toml
[INFO] started frobbing cesare/rust-euler
[INFO] finished frobbing cesare/rust-euler
[INFO] frobbed toml for cesare/rust-euler written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/cesare/rust-euler/Cargo.toml
[INFO] crate cesare/rust-euler 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 cesare/rust-euler 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/cesare/rust-euler:/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] 08da51523bf19408fc8839727e23c84797c6ec6bfc8b48904c774b155a3982d7
[INFO] running `"docker" "start" "-a" "08da51523bf19408fc8839727e23c84797c6ec6bfc8b48904c774b155a3982d7"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Checking euler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             diff: diff,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             n: n,
[INFO] [stderr]    |             ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             diff: diff,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             n: n,
[INFO] [stderr]    |             ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             diff: diff,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             n: n,
[INFO] [stderr]    |             ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             diff: diff,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             n: n,
[INFO] [stderr]    |             ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/problem_003_largest_prime_factor.rs:10:26
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut the_number = 600851475143;
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: consider: `600_851_475_143`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_008_largest_product.rs:27:54
[INFO] [stderr]    |
[INFO] [stderr] 27 |     s.chars().map(|c| c.to_digit(10).unwrap() as u64).fold(1, |a, n| a * n)
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/problem_008_largest_product.rs:27:23
[INFO] [stderr]    |
[INFO] [stderr] 27 |     s.chars().map(|c| c.to_digit(10).unwrap() as u64).fold(1, |a, n| a * n)
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(c.to_digit(10).unwrap())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem_008_largest_product.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 |     for i in 0..s.len() - len + 1 {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^ help: use: `0..=s.len() - len`
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/problem_003_largest_prime_factor.rs:10:26
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut the_number = 600851475143;
[INFO] [stderr]    |                          ^^^^^^^^^^^^ help: consider: `600_851_475_143`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Fib`
[INFO] [stderr]   --> src/problem_002.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     pub fn new() -> Fib {
[INFO] [stderr] 9  | |         Fib {
[INFO] [stderr] 10 | |             i: 0,
[INFO] [stderr] 11 | |             previous: 0,
[INFO] [stderr] 12 | |             current: 1,
[INFO] [stderr] 13 | |         }
[INFO] [stderr] 14 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 1  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `EvenFib`
[INFO] [stderr]   --> src/problem_002.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | /     pub fn new() -> EvenFib {
[INFO] [stderr] 38 | |         EvenFib {
[INFO] [stderr] 39 | |             i: 0,
[INFO] [stderr] 40 | |             previous: 2,
[INFO] [stderr] 41 | |             current: 0,
[INFO] [stderr] 42 | |         }
[INFO] [stderr] 43 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 30 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]    --> src/prime.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn reset(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]    --> src/prime.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn reset(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/prime.rs:79:24
[INFO] [stderr]    |
[INFO] [stderr] 79 |         (from..to).map(|n| Candidate::new(n)).collect()
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Candidate::new`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/prime.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let &p = self.prime.known_primes.get(self.current_idx).unwrap();
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.prime.known_primes[self.current_idx]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]  --> src/problem_010_summation_of_primes.rs:6:54
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let result = ps.take_while(|&p| p < 2_000_000u64).fold(0, |a, n| a + n);
[INFO] [stderr]   |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/prime.rs:79:24
[INFO] [stderr]    |
[INFO] [stderr] 79 |         (from..to).map(|n| Candidate::new(n)).collect()
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Candidate::new`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/prime.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let &p = self.prime.known_primes.get(self.current_idx).unwrap();
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.prime.known_primes[self.current_idx]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]  --> src/problem_010_summation_of_primes.rs:6:54
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let result = ps.take_while(|&p| p < 2_000_000u64).fold(0, |a, n| a + n);
[INFO] [stderr]   |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/prime.rs:79:24
[INFO] [stderr]    |
[INFO] [stderr] 79 |         (from..to).map(|n| Candidate::new(n)).collect()
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Candidate::new`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/prime.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let &p = self.prime.known_primes.get(self.current_idx).unwrap();
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.prime.known_primes[self.current_idx]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem_004_largest_palindrome_product.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let bs = (100..a + 1).rev();
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: use: `(100..=a)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/problem_003_largest_prime_factor.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         the_number = the_number / f;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `the_number /= f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/prime.rs:79:24
[INFO] [stderr]    |
[INFO] [stderr] 79 |         (from..to).map(|n| Candidate::new(n)).collect()
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Candidate::new`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/prime.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let &p = self.prime.known_primes.get(self.current_idx).unwrap();
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.prime.known_primes[self.current_idx]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/problem_003_largest_prime_factor.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |         the_number = the_number / f;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `the_number /= f`
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             diff: diff,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             n: n,
[INFO] [stderr]    |             ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             diff: diff,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `diff`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/prime.rs:43:13
[INFO] [stderr]    |
[INFO] [stderr] 43 |             n: n,
[INFO] [stderr]    |             ^^^^ help: replace it with: `n`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/problem_005_smallest_multiple.rs:42:42
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let product = results.iter().fold(1, (|a, b| a * b));
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/problem_005_smallest_multiple.rs:42:42
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let product = results.iter().fold(1, (|a, b| a * b));
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]  --> src/problem_006_sum_square_difference.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     1u32..max + 1
[INFO] [stderr]   |     ^^^^^^^^^^^^^ help: use: `1u32..=max`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_006_sum_square_difference.rs:10:58
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let sum_of_square = sequence_upto(max).map(|n| n * n).fold(0, |a, n| a + n);
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_006_sum_square_difference.rs:11:43
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let square_of_sum = sequence_upto(max).fold(0, |a, n| a + n).pow(2);
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem_005_smallest_multiple.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let range = 2..to + 1;
[INFO] [stderr]    |                 ^^^^^^^^^ help: use: `2..=to`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_005_smallest_multiple.rs:42:33
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let product = results.iter().fold(1, (|a, b| a * b));
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]    --> src/prime.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn reset(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem_005_smallest_multiple.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let range = 2..to + 1;
[INFO] [stderr]    |                 ^^^^^^^^^ help: use: `2..=to`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/prime.rs:79:24
[INFO] [stderr]    |
[INFO] [stderr] 79 |         (from..to).map(|n| Candidate::new(n)).collect()
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Candidate::new`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_005_smallest_multiple.rs:42:33
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let product = results.iter().fold(1, (|a, b| a * b));
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]  --> src/problem_006_sum_square_difference.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     1u32..max + 1
[INFO] [stderr]   |     ^^^^^^^^^^^^^ help: use: `1u32..=max`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/prime.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let &p = self.prime.known_primes.get(self.current_idx).unwrap();
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.prime.known_primes[self.current_idx]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_006_sum_square_difference.rs:10:58
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let sum_of_square = sequence_upto(max).map(|n| n * n).fold(0, |a, n| a + n);
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_006_sum_square_difference.rs:11:43
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let square_of_sum = sequence_upto(max).fold(0, |a, n| a + n).pow(2);
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Fib`
[INFO] [stderr]   --> src/problem_002.rs:8:5
[INFO] [stderr]    |
[INFO] [stderr] 8  | /     pub fn new() -> Fib {
[INFO] [stderr] 9  | |         Fib {
[INFO] [stderr] 10 | |             i: 0,
[INFO] [stderr] 11 | |             previous: 0,
[INFO] [stderr] 12 | |             current: 1,
[INFO] [stderr] 13 | |         }
[INFO] [stderr] 14 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 1  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `EvenFib`
[INFO] [stderr]   --> src/problem_002.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 | /     pub fn new() -> EvenFib {
[INFO] [stderr] 38 | |         EvenFib {
[INFO] [stderr] 39 | |             i: 0,
[INFO] [stderr] 40 | |             previous: 2,
[INFO] [stderr] 41 | |             current: 0,
[INFO] [stderr] 42 | |         }
[INFO] [stderr] 43 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 30 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]    --> src/prime.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn reset(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/prime.rs:79:24
[INFO] [stderr]    |
[INFO] [stderr] 79 |         (from..to).map(|n| Candidate::new(n)).collect()
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Candidate::new`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/prime.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let &p = self.prime.known_primes.get(self.current_idx).unwrap();
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.prime.known_primes[self.current_idx]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/problem_008_largest_product.rs:27:54
[INFO] [stderr]    |
[INFO] [stderr] 27 |     s.chars().map(|c| c.to_digit(10).unwrap() as u64).fold(1, |a, n| a * n)
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]   --> src/problem_008_largest_product.rs:27:23
[INFO] [stderr]    |
[INFO] [stderr] 27 |     s.chars().map(|c| c.to_digit(10).unwrap() as u64).fold(1, |a, n| a * n)
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(c.to_digit(10).unwrap())`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem_008_largest_product.rs:34:14
[INFO] [stderr]    |
[INFO] [stderr] 34 |     for i in 0..s.len() - len + 1 {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^^^ help: use: `0..=s.len() - len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem_004_largest_palindrome_product.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |         let bs = (100..a + 1).rev();
[INFO] [stderr]    |                  ^^^^^^^^^^^^ help: use: `(100..=a)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.38s
[INFO] running `"docker" "inspect" "08da51523bf19408fc8839727e23c84797c6ec6bfc8b48904c774b155a3982d7"`
[INFO] running `"docker" "rm" "-f" "08da51523bf19408fc8839727e23c84797c6ec6bfc8b48904c774b155a3982d7"`
[INFO] [stdout] 08da51523bf19408fc8839727e23c84797c6ec6bfc8b48904c774b155a3982d7