[INFO] updating cached repository zsiciarz/euler.rs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/zsiciarz/euler.rs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/zsiciarz/euler.rs" "work/ex/clippy-test-run/sources/stable/gh/zsiciarz/euler.rs"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/zsiciarz/euler.rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/zsiciarz/euler.rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zsiciarz/euler.rs"` [INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zsiciarz/euler.rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 01ce7e77c6709672e1bd2cb5317033ee603db0fc [INFO] sha for GitHub repo zsiciarz/euler.rs: 01ce7e77c6709672e1bd2cb5317033ee603db0fc [INFO] validating manifest of zsiciarz/euler.rs 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 zsiciarz/euler.rs 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 zsiciarz/euler.rs [INFO] finished frobbing zsiciarz/euler.rs [INFO] frobbed toml for zsiciarz/euler.rs written to work/ex/clippy-test-run/sources/stable/gh/zsiciarz/euler.rs/Cargo.toml [INFO] started frobbing zsiciarz/euler.rs [INFO] finished frobbing zsiciarz/euler.rs [INFO] frobbed toml for zsiciarz/euler.rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/zsiciarz/euler.rs/Cargo.toml [INFO] crate zsiciarz/euler.rs 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 zsiciarz/euler.rs against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/zsiciarz/euler.rs:/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] 8151d2613ce8373e4a2b2054957f471e7cd9a8d8915510de2289becc333ebef3 [INFO] running `"docker" "start" "-a" "8151d2613ce8373e4a2b2054957f471e7cd9a8d8915510de2289becc333ebef3"` [INFO] [stderr] Checking num-traits v0.1.39 [INFO] [stderr] Checking libc v0.2.24 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Checking hamming v0.1.3 [INFO] [stderr] Checking primal-estimate v0.2.1 [INFO] [stderr] Checking permutohedron v0.2.2 [INFO] [stderr] Checking getopts v0.2.14 [INFO] [stderr] Checking primal-bit v0.2.3 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking primal-sieve v0.2.6 [INFO] [stderr] Checking num-integer v0.1.34 [INFO] [stderr] Checking num-iter v0.1.33 [INFO] [stderr] Checking num-bigint v0.1.39 [INFO] [stderr] Checking num-complex v0.1.38 [INFO] [stderr] Checking num-rational v0.1.38 [INFO] [stderr] Checking num v0.1.39 [INFO] [stderr] Checking primal-check v0.2.2 [INFO] [stderr] Checking primal v0.2.3 [INFO] [stderr] Checking euler v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem2.rs:6:33 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(fib.take_while(|&i| i <= 4000000).filter(|&i| i % 2 == 0).fold(0, |acc, x| acc + x)) [INFO] [stderr] | ^^^^^^^ help: consider: `4_000_000` [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: long literal lacking separators [INFO] [stderr] --> src/solutions/problem3.rs:5:36 [INFO] [stderr] | [INFO] [stderr] 5 | match Sieve::new(10000).factor(600851475143).unwrap().into_iter().last() { [INFO] [stderr] | ^^^^^^^^^^^^ help: consider: `600_851_475_143` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem10.rs:5:29 [INFO] [stderr] | [INFO] [stderr] 5 | let primes = Sieve::new(2000000); [INFO] [stderr] | ^^^^^^^ help: consider: `2_000_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem10.rs:6:50 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(primes.primes_from(0).take_while(|&p| p < 2000000).fold(0, |acc, x| acc + x) as i64) [INFO] [stderr] | ^^^^^^^ help: consider: `2_000_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem12.rs:7:29 [INFO] [stderr] | [INFO] [stderr] 7 | let primes = Sieve::new(100000); [INFO] [stderr] | ^^^^^^ help: consider: `100_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem14.rs:19:20 [INFO] [stderr] | [INFO] [stderr] 19 | for i in 1i64..1000000 { [INFO] [stderr] | ^^^^^^^ help: consider: `1_000_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem30.rs:9:15 [INFO] [stderr] | [INFO] [stderr] 9 | Ok((2i64..1234567).filter(|&x| x == sum_powers(5, x)).fold(0, |acc, x| acc + x)) [INFO] [stderr] | ^^^^^^^ help: consider: `1_234_567` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem34.rs:9:15 [INFO] [stderr] | [INFO] [stderr] 9 | Ok((3i64..2540160) [INFO] [stderr] | ^^^^^^^ help: consider: `2_540_160` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem40.rs:12:31 [INFO] [stderr] | [INFO] [stderr] 12 | if all_digits.len() > 999999 { [INFO] [stderr] | ^^^^^^ help: consider: `999_999` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem40.rs:17:39 [INFO] [stderr] | [INFO] [stderr] 17 | all_digits[99999] * all_digits[999999]) [INFO] [stderr] | ^^^^^^ help: consider: `999_999` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem41.rs:18:28 [INFO] [stderr] | [INFO] [stderr] 18 | let sieve = Sieve::new(9999999); [INFO] [stderr] | ^^^^^^^ help: consider: `9_999_999` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem45.rs:17:19 [INFO] [stderr] | [INFO] [stderr] 17 | let x = (144..100000).map(hexagonal).filter(|&x| is_pentagonal(x)).take(1).next(); [INFO] [stderr] | ^^^^^^ help: consider: `100_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem2.rs:6:33 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(fib.take_while(|&i| i <= 4000000).filter(|&i| i % 2 == 0).fold(0, |acc, x| acc + x)) [INFO] [stderr] | ^^^^^^^ help: consider: `4_000_000` [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: long literal lacking separators [INFO] [stderr] --> src/solutions/problem3.rs:5:36 [INFO] [stderr] | [INFO] [stderr] 5 | match Sieve::new(10000).factor(600851475143).unwrap().into_iter().last() { [INFO] [stderr] | ^^^^^^^^^^^^ help: consider: `600_851_475_143` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem10.rs:5:29 [INFO] [stderr] | [INFO] [stderr] 5 | let primes = Sieve::new(2000000); [INFO] [stderr] | ^^^^^^^ help: consider: `2_000_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem10.rs:6:50 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(primes.primes_from(0).take_while(|&p| p < 2000000).fold(0, |acc, x| acc + x) as i64) [INFO] [stderr] | ^^^^^^^ help: consider: `2_000_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem12.rs:7:29 [INFO] [stderr] | [INFO] [stderr] 7 | let primes = Sieve::new(100000); [INFO] [stderr] | ^^^^^^ help: consider: `100_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem14.rs:19:20 [INFO] [stderr] | [INFO] [stderr] 19 | for i in 1i64..1000000 { [INFO] [stderr] | ^^^^^^^ help: consider: `1_000_000` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem30.rs:9:15 [INFO] [stderr] | [INFO] [stderr] 9 | Ok((2i64..1234567).filter(|&x| x == sum_powers(5, x)).fold(0, |acc, x| acc + x)) [INFO] [stderr] | ^^^^^^^ help: consider: `1_234_567` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem34.rs:9:15 [INFO] [stderr] | [INFO] [stderr] 9 | Ok((3i64..2540160) [INFO] [stderr] | ^^^^^^^ help: consider: `2_540_160` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem40.rs:12:31 [INFO] [stderr] | [INFO] [stderr] 12 | if all_digits.len() > 999999 { [INFO] [stderr] | ^^^^^^ help: consider: `999_999` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem40.rs:17:39 [INFO] [stderr] | [INFO] [stderr] 17 | all_digits[99999] * all_digits[999999]) [INFO] [stderr] | ^^^^^^ help: consider: `999_999` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem41.rs:18:28 [INFO] [stderr] | [INFO] [stderr] 18 | let sieve = Sieve::new(9999999); [INFO] [stderr] | ^^^^^^^ help: consider: `9_999_999` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/solutions/problem45.rs:17:19 [INFO] [stderr] | [INFO] [stderr] 17 | let x = (144..100000).map(hexagonal).filter(|&x| is_pentagonal(x)).take(1).next(); [INFO] [stderr] | ^^^^^^ help: consider: `100_000` [INFO] [stderr] | [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/solutions/problem1.rs:4:58 [INFO] [stderr] | [INFO] [stderr] 4 | Ok((1i64..1000).filter(|&i| i % 3 == 0 || i % 5 == 0).fold(0, |acc, x| acc + x)) [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/solutions/problem2.rs:6:65 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(fib.take_while(|&i| i <= 4000000).filter(|&i| i % 2 == 0).fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem6.rs:4:19 [INFO] [stderr] | [INFO] [stderr] 4 | Ok((1i64..101).fold(0, |acc, x| acc + x).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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem6.rs:5:37 [INFO] [stderr] | [INFO] [stderr] 5 | (1i64..101).map(|x| x.pow(2)).fold(0, |acc, x| acc + x)) [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: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem8.rs:19:42 [INFO] [stderr] | [INFO] [stderr] 19 | w.chars().fold(1, |acc, c| acc * c.to_digit(10).unwrap() as u64) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem10.rs:6:58 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(primes.primes_from(0).take_while(|&p| p < 2000000).fold(0, |acc, x| acc + x) as i64) [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/solutions/problem18.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for j in 0..i + 1 { [INFO] [stderr] | ^^^^^^^^ help: use: `0..=i` [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/solutions/problem1.rs:4:58 [INFO] [stderr] | [INFO] [stderr] 4 | Ok((1i64..1000).filter(|&i| i % 3 == 0 || i % 5 == 0).fold(0, |acc, x| acc + x)) [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/solutions/problem21.rs:7:28 [INFO] [stderr] | [INFO] [stderr] 7 | divisors(n).into_iter().fold(0, |acc, x| acc + x) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem2.rs:6:65 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(fib.take_while(|&i| i <= 4000000).filter(|&i| i % 2 == 0).fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem22.rs:14:11 [INFO] [stderr] | [INFO] [stderr] 14 | }) [INFO] [stderr] | ___________^ [INFO] [stderr] 15 | | .fold(0, |acc, x| acc + x) [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: casting u8 to u32 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem22.rs:12:22 [INFO] [stderr] | [INFO] [stderr] 12 | Some((c as u8 - 64u8) as u32) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(c as u8 - 64u8)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem22.rs:24:8 [INFO] [stderr] | [INFO] [stderr] 24 | Ok(names.into_iter() [INFO] [stderr] | ________^ [INFO] [stderr] 25 | | .enumerate() [INFO] [stderr] 26 | | .map(|(i, name)| (i as u32 + 1) * name_value(name)) [INFO] [stderr] 27 | | .fold(0, |acc, x| acc + x) as i64) [INFO] [stderr] | |_____________________________________________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] help: try [INFO] [stderr] | [INFO] [stderr] 24 | Ok(i64::from(names.into_iter() [INFO] [stderr] 25 | .enumerate() [INFO] [stderr] 26 | .map(|(i, name)| (i as u32 + 1) * name_value(name)) [INFO] [stderr] 27 | .fold(0, |acc, x| acc + x))) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem22.rs:26:64 [INFO] [stderr] | [INFO] [stderr] 26 | .map(|(i, name)| (i as u32 + 1) * name_value(name)) [INFO] [stderr] | ________________________________________________________________^ [INFO] [stderr] 27 | | .fold(0, |acc, x| acc + x) as i64) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem6.rs:4:19 [INFO] [stderr] | [INFO] [stderr] 4 | Ok((1i64..101).fold(0, |acc, x| acc + x).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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem6.rs:5:37 [INFO] [stderr] | [INFO] [stderr] 5 | (1i64..101).map(|x| x.pow(2)).fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem30.rs:5:46 [INFO] [stderr] | [INFO] [stderr] 5 | digits(x).into_iter().map(|i| i.pow(pow)).fold(0, |acc, x| acc + x) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem30.rs:9:58 [INFO] [stderr] | [INFO] [stderr] 9 | Ok((2i64..1234567).filter(|&x| x == sum_powers(5, x)).fold(0, |acc, x| acc + x)) [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: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem8.rs:19:42 [INFO] [stderr] | [INFO] [stderr] 19 | w.chars().fold(1, |acc, c| acc * c.to_digit(10).unwrap() as u64) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] warning: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem10.rs:6:58 [INFO] [stderr] | [INFO] [stderr] 6 | Ok(primes.primes_from(0).take_while(|&p| p < 2000000).fold(0, |acc, x| acc + x) as i64) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()` [INFO] [stderr] --> src/solutions/problem32.rs:28:41 [INFO] [stderr] | [INFO] [stderr] 28 | Ok(pandigital_products().into_iter().fold(0, |acc, x| acc + x)) [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] | [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/solutions/problem34.rs:5:15 [INFO] [stderr] | [INFO] [stderr] 5 | (2..n + 1).fold(1, |acc, x| acc * x) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()` [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/solutions/problem34.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | (2..n + 1).fold(1, |acc, x| acc * x) [INFO] [stderr] | ^^^^^^^^^^ help: use: `(2..=n)` [INFO] [stderr] | [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/solutions/problem34.rs:10:93 [INFO] [stderr] | [INFO] [stderr] 10 | .filter(|&x| x == digits(x).into_iter().map(factorial).fold(0, |acc, x| acc + x)) [INFO] [stderr] | _____________________________________________________________________________________________^ [INFO] [stderr] 11 | | .fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem34.rs:10:66 [INFO] [stderr] | [INFO] [stderr] 10 | .filter(|&x| x == digits(x).into_iter().map(factorial).fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem42.rs:19:11 [INFO] [stderr] | [INFO] [stderr] 19 | }) [INFO] [stderr] | ___________^ [INFO] [stderr] 20 | | .fold(0, |acc, x| acc + x) [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: casting u8 to u32 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem42.rs:17:22 [INFO] [stderr] | [INFO] [stderr] 17 | Some((c as u8 - 64u8) as u32) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(c as u8 - 64u8)` [INFO] [stderr] | [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/solutions/problem67.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for j in 0..i + 1 { [INFO] [stderr] | ^^^^^^^^ help: use: `0..=i` [INFO] [stderr] | [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/solutions/problem18.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for j in 0..i + 1 { [INFO] [stderr] | ^^^^^^^^ help: use: `0..=i` [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/solutions/problem21.rs:7:28 [INFO] [stderr] | [INFO] [stderr] 7 | divisors(n).into_iter().fold(0, |acc, x| acc + x) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem22.rs:14:11 [INFO] [stderr] | [INFO] [stderr] 14 | }) [INFO] [stderr] | ___________^ [INFO] [stderr] 15 | | .fold(0, |acc, x| acc + x) [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: casting u8 to u32 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem22.rs:12:22 [INFO] [stderr] | [INFO] [stderr] 12 | Some((c as u8 - 64u8) as u32) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(c as u8 - 64u8)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to i64 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem22.rs:24:8 [INFO] [stderr] | [INFO] [stderr] 24 | Ok(names.into_iter() [INFO] [stderr] | ________^ [INFO] [stderr] 25 | | .enumerate() [INFO] [stderr] 26 | | .map(|(i, name)| (i as u32 + 1) * name_value(name)) [INFO] [stderr] 27 | | .fold(0, |acc, x| acc + x) as i64) [INFO] [stderr] | |_____________________________________________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] help: try [INFO] [stderr] | [INFO] [stderr] 24 | Ok(i64::from(names.into_iter() [INFO] [stderr] 25 | .enumerate() [INFO] [stderr] 26 | .map(|(i, name)| (i as u32 + 1) * name_value(name)) [INFO] [stderr] 27 | .fold(0, |acc, x| acc + x))) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem22.rs:26:64 [INFO] [stderr] | [INFO] [stderr] 26 | .map(|(i, name)| (i as u32 + 1) * name_value(name)) [INFO] [stderr] | ________________________________________________________________^ [INFO] [stderr] 27 | | .fold(0, |acc, x| acc + x) as i64) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem30.rs:5:46 [INFO] [stderr] | [INFO] [stderr] 5 | digits(x).into_iter().map(|i| i.pow(pow)).fold(0, |acc, x| acc + x) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem30.rs:9:58 [INFO] [stderr] | [INFO] [stderr] 9 | Ok((2i64..1234567).filter(|&x| x == sum_powers(5, x)).fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem32.rs:28:41 [INFO] [stderr] | [INFO] [stderr] 28 | Ok(pandigital_products().into_iter().fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem34.rs:5:15 [INFO] [stderr] | [INFO] [stderr] 5 | (2..n + 1).fold(1, |acc, x| acc * x) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.product()` [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/solutions/problem34.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | (2..n + 1).fold(1, |acc, x| acc * x) [INFO] [stderr] | ^^^^^^^^^^ help: use: `(2..=n)` [INFO] [stderr] | [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/solutions/problem34.rs:10:93 [INFO] [stderr] | [INFO] [stderr] 10 | .filter(|&x| x == digits(x).into_iter().map(factorial).fold(0, |acc, x| acc + x)) [INFO] [stderr] | _____________________________________________________________________________________________^ [INFO] [stderr] 11 | | .fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem34.rs:10:66 [INFO] [stderr] | [INFO] [stderr] 10 | .filter(|&x| x == digits(x).into_iter().map(factorial).fold(0, |acc, x| acc + x)) [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: this `.fold` can be written more succinctly using another method [INFO] [stderr] --> src/solutions/problem42.rs:19:11 [INFO] [stderr] | [INFO] [stderr] 19 | }) [INFO] [stderr] | ___________^ [INFO] [stderr] 20 | | .fold(0, |acc, x| acc + x) [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: casting u8 to u32 may become silently lossy if types change [INFO] [stderr] --> src/solutions/problem42.rs:17:22 [INFO] [stderr] | [INFO] [stderr] 17 | Some((c as u8 - 64u8) as u32) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(c as u8 - 64u8)` [INFO] [stderr] | [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/solutions/problem67.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for j in 0..i + 1 { [INFO] [stderr] | ^^^^^^^^ help: use: `0..=i` [INFO] [stderr] | [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 15.21s [INFO] running `"docker" "inspect" "8151d2613ce8373e4a2b2054957f471e7cd9a8d8915510de2289becc333ebef3"` [INFO] running `"docker" "rm" "-f" "8151d2613ce8373e4a2b2054957f471e7cd9a8d8915510de2289becc333ebef3"` [INFO] [stdout] 8151d2613ce8373e4a2b2054957f471e7cd9a8d8915510de2289becc333ebef3