[INFO] updating cached repository jeffs/rust-euler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jeffs/rust-euler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jeffs/rust-euler" "work/ex/clippy-test-run/sources/stable/gh/jeffs/rust-euler"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/jeffs/rust-euler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jeffs/rust-euler" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jeffs/rust-euler"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jeffs/rust-euler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ee12b0d784974fd5b7c586463acbbd0e042291bf
[INFO] sha for GitHub repo jeffs/rust-euler: ee12b0d784974fd5b7c586463acbbd0e042291bf
[INFO] validating manifest of jeffs/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 jeffs/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 jeffs/rust-euler
[INFO] finished frobbing jeffs/rust-euler
[INFO] frobbed toml for jeffs/rust-euler written to work/ex/clippy-test-run/sources/stable/gh/jeffs/rust-euler/Cargo.toml
[INFO] started frobbing jeffs/rust-euler
[INFO] finished frobbing jeffs/rust-euler
[INFO] frobbed toml for jeffs/rust-euler written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jeffs/rust-euler/Cargo.toml
[INFO] crate jeffs/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 jeffs/rust-euler 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/jeffs/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" "-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] 98ccc6db462caff2c38a6da3736a9de2bc86b863946384590911c3140310e333
[INFO] running `"docker" "start" "-a" "98ccc6db462caff2c38a6da3736a9de2bc86b863946384590911c3140310e333"`
[INFO] [stderr]     Checking rust-euler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/problem1.rs:27:32
[INFO] [stderr]    |
[INFO] [stderr] 27 |         assert_eq!(solution(), 233168);
[INFO] [stderr]    |                                ^^^^^^ help: consider: `233_168`
[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/problem4.rs:52:38
[INFO] [stderr]    |
[INFO] [stderr] 52 |         assert_eq!(to_digits_reverse(8675309, 10), vec![9, 0, 3, 5, 7, 6, 8]);
[INFO] [stderr]    |                                      ^^^^^^^ help: consider: `8_675_309`
[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/problem4.rs:57:32
[INFO] [stderr]    |
[INFO] [stderr] 57 |         assert_eq!(solution(), 906609);
[INFO] [stderr]    |                                ^^^^^^ help: consider: `906_609`
[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/problem7.rs:22:32
[INFO] [stderr]    |
[INFO] [stderr] 22 |         assert_eq!(solution(), 104743);
[INFO] [stderr]    |                                ^^^^^^ help: consider: `104_743`
[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: redundant closure found
[INFO] [stderr]   --> src/problem5.rs:19:29
[INFO] [stderr]    |
[INFO] [stderr] 19 |     for m in (1..21u64).map(|i| factor(i)) {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ help: remove closure as shown: `factor`
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem6.rs:20:31
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let sum_of_squares: u64 = (1..(n + 1)).map(|x| x * x).sum();
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use: `(1..=n)`
[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 .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]   --> src/prime.rs:17:11
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pairs.into_iter().cloned().collect()
[INFO] [stderr]    |           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[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/prime.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn none_divides(ds: &Vec<u64>, n: u64) -> bool {
[INFO] [stderr]    |                     ^^^^^^^^^ help: change this to: `&[u64]`
[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: redundant closure found
[INFO] [stderr]   --> src/problem5.rs:19:29
[INFO] [stderr]    |
[INFO] [stderr] 19 |     for m in (1..21u64).map(|i| factor(i)) {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^ help: remove closure as shown: `factor`
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/problem6.rs:20:31
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let sum_of_squares: u64 = (1..(n + 1)).map(|x| x * x).sum();
[INFO] [stderr]    |                               ^^^^^^^^^^^^ help: use: `(1..=n)`
[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 .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]   --> src/prime.rs:17:11
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pairs.into_iter().cloned().collect()
[INFO] [stderr]    |           ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[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/prime.rs:63:21
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn none_divides(ds: &Vec<u64>, n: u64) -> bool {
[INFO] [stderr]    |                     ^^^^^^^^^ help: change this to: `&[u64]`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "98ccc6db462caff2c38a6da3736a9de2bc86b863946384590911c3140310e333"`
[INFO] running `"docker" "rm" "-f" "98ccc6db462caff2c38a6da3736a9de2bc86b863946384590911c3140310e333"`
[INFO] [stdout] 98ccc6db462caff2c38a6da3736a9de2bc86b863946384590911c3140310e333