[INFO] crate concurrent_prime_sieve 0.3.3 is already in cache [INFO] extracting crate concurrent_prime_sieve 0.3.3 into work/ex/clippy-test-run/sources/stable/reg/concurrent_prime_sieve/0.3.3 [INFO] extracting crate concurrent_prime_sieve 0.3.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/concurrent_prime_sieve/0.3.3 [INFO] validating manifest of concurrent_prime_sieve-0.3.3 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 concurrent_prime_sieve-0.3.3 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 concurrent_prime_sieve-0.3.3 [INFO] finished frobbing concurrent_prime_sieve-0.3.3 [INFO] frobbed toml for concurrent_prime_sieve-0.3.3 written to work/ex/clippy-test-run/sources/stable/reg/concurrent_prime_sieve/0.3.3/Cargo.toml [INFO] started frobbing concurrent_prime_sieve-0.3.3 [INFO] finished frobbing concurrent_prime_sieve-0.3.3 [INFO] frobbed toml for concurrent_prime_sieve-0.3.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/concurrent_prime_sieve/0.3.3/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [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 concurrent_prime_sieve-0.3.3 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/reg/concurrent_prime_sieve/0.3.3:/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] ddb03fa431c2dc03426ba46079e196198102fde9834b0f2e88ed6b519176ce94 [INFO] running `"docker" "start" "-a" "ddb03fa431c2dc03426ba46079e196198102fde9834b0f2e88ed6b519176ce94"` [INFO] [stderr] Checking primal-sieve v0.2.9 [INFO] [stderr] Checking concurrent_prime_sieve v0.3.3 (/opt/crater/workdir) [INFO] [stderr] warning: you seem to be trying to match on a boolean expression [INFO] [stderr] --> src/filter.rs:103:46 [INFO] [stderr] | [INFO] [stderr] 103 | let (mut n_1, mut to_next_n_1) = match y_sq < min_num { [INFO] [stderr] | ______________________________________________^ [INFO] [stderr] 104 | | false => (y_sq+4, 12), [INFO] [stderr] 105 | | _ => { [INFO] [stderr] 106 | | let min_num_x = (ceil_sqrt(min_num - y_sq) +1)/2; [INFO] [stderr] 107 | | (4*min_num_x*min_num_x + y_sq, 8*min_num_x + 4) [INFO] [stderr] 108 | | }, [INFO] [stderr] 109 | | }; [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_bool)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool [INFO] [stderr] help: consider using an if/else expression [INFO] [stderr] | [INFO] [stderr] 103 | let (mut n_1, mut to_next_n_1) = if y_sq < min_num { [INFO] [stderr] 104 | let min_num_x = (ceil_sqrt(min_num - y_sq) +1)/2; [INFO] [stderr] 105 | (4*min_num_x*min_num_x + y_sq, 8*min_num_x + 4) [INFO] [stderr] 106 | } else { (y_sq+4, 12) }; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to match on a boolean expression [INFO] [stderr] --> src/filter.rs:123:46 [INFO] [stderr] | [INFO] [stderr] 123 | let (mut n_2, mut to_next_n_2) = match y_sq < min_num { [INFO] [stderr] | ______________________________________________^ [INFO] [stderr] 124 | | false => (y_sq+3, 9), [INFO] [stderr] 125 | | _ => { [INFO] [stderr] 126 | | let min_num_x = (ceil_sqrt((min_num - y_sq)*3)+2)/3; [INFO] [stderr] 127 | | (3*min_num_x*min_num_x + y_sq, 6*min_num_x + 3) [INFO] [stderr] 128 | | }, [INFO] [stderr] 129 | | }; [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool [INFO] [stderr] help: consider using an if/else expression [INFO] [stderr] | [INFO] [stderr] 123 | let (mut n_2, mut to_next_n_2) = if y_sq < min_num { [INFO] [stderr] 124 | let min_num_x = (ceil_sqrt((min_num - y_sq)*3)+2)/3; [INFO] [stderr] 125 | (3*min_num_x*min_num_x + y_sq, 6*min_num_x + 3) [INFO] [stderr] 126 | } else { (y_sq+3, 9) }; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to match on a boolean expression [INFO] [stderr] --> src/filter.rs:143:46 [INFO] [stderr] | [INFO] [stderr] 143 | let (mut n_3, mut to_next_n_3) = match (y_sq << 1) < min_num { [INFO] [stderr] | ______________________________________________^ [INFO] [stderr] 144 | | false => (2*y_sq+3*to_next_y_sq, 6*to_next_y_sq+18), [INFO] [stderr] 145 | | _ => { [INFO] [stderr] 146 | | let min_num_x = match (ceil_sqrt((min_num + y_sq)*3) +2)/3{ [INFO] [stderr] ... | [INFO] [stderr] 151 | | }, [INFO] [stderr] 152 | | }; [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool [INFO] [stderr] help: consider using an if/else expression [INFO] [stderr] | [INFO] [stderr] 143 | let (mut n_3, mut to_next_n_3) = if (y_sq << 1) < min_num { [INFO] [stderr] 144 | let min_num_x = match (ceil_sqrt((min_num + y_sq)*3) +2)/3{ [INFO] [stderr] 145 | mx if (mx+y_sq)%2 == 0 => mx + 1, [INFO] [stderr] 146 | mx => mx, [INFO] [stderr] 147 | }; [INFO] [stderr] 148 | (3*min_num_x*min_num_x - y_sq, 12*min_num_x + 12) [INFO] [stderr] ... [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/collection.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | / match is_prime { [INFO] [stderr] 26 | | &true => Some(i + min_num), [INFO] [stderr] 27 | | _ => None [INFO] [stderr] 28 | | }).collect() [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 25 | match *is_prime { [INFO] [stderr] 26 | true => Some(i + min_num), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: digits grouped inconsistently by underscores [INFO] [stderr] --> src/filter.rs:37:40 [INFO] [stderr] | [INFO] [stderr] 37 | assert_eq!(1_000_000_000, int_sqrt(10_00_000_000_000_000_000)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider: `1_000_000_000_000_000_000` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::inconsistent_digit_grouping)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inconsistent_digit_grouping [INFO] [stderr] [INFO] [stderr] warning: long literal lacking separators [INFO] [stderr] --> src/filter.rs:39:16 [INFO] [stderr] | [INFO] [stderr] 39 | assert_eq!(94906265, int_sqrt((1<<53) + 1)); [INFO] [stderr] | ^^^^^^^^ help: consider: `94_906_265` [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/filter.rs:42:16 [INFO] [stderr] | [INFO] [stderr] 42 | assert_eq!(100000000, ceil_sqrt(9999999999989999)); [INFO] [stderr] | ^^^^^^^^^ help: consider: `100_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/filter.rs:42:37 [INFO] [stderr] | [INFO] [stderr] 42 | assert_eq!(100000000, ceil_sqrt(9999999999989999)); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider: `9_999_999_999_989_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/filter.rs:43:15 [INFO] [stderr] | [INFO] [stderr] 43 | for i in (10000000000000000-100000000)..10000000000000000{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider: `10_000_000_000_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/filter.rs:43:33 [INFO] [stderr] | [INFO] [stderr] 43 | for i in (10000000000000000-100000000)..10000000000000000{ [INFO] [stderr] | ^^^^^^^^^ help: consider: `100_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/filter.rs:43:45 [INFO] [stderr] | [INFO] [stderr] 43 | for i in (10000000000000000-100000000)..10000000000000000{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider: `10_000_000_000_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/filter.rs:44:20 [INFO] [stderr] | [INFO] [stderr] 44 | assert_eq!(100000000, ceil_sqrt(i)); [INFO] [stderr] | ^^^^^^^^^ help: consider: `100_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/filter.rs:46:14 [INFO] [stderr] | [INFO] [stderr] 46 | for i in 10000000000000000..(10000000000000000+100000000){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider: `10_000_000_000_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/filter.rs:46:34 [INFO] [stderr] | [INFO] [stderr] 46 | for i in 10000000000000000..(10000000000000000+100000000){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider: `10_000_000_000_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/filter.rs:46:52 [INFO] [stderr] | [INFO] [stderr] 46 | for i in 10000000000000000..(10000000000000000+100000000){ [INFO] [stderr] | ^^^^^^^^^ help: consider: `100_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/filter.rs:47:20 [INFO] [stderr] | [INFO] [stderr] 47 | assert_eq!(100000000, int_sqrt(i)); [INFO] [stderr] | ^^^^^^^^^ help: consider: `100_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/lib.rs:98:34 [INFO] [stderr] | [INFO] [stderr] 98 | assert_eq!(total_primes, 5761455); [INFO] [stderr] | ^^^^^^^ help: consider: `5_761_455` [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/lib.rs:118:34 [INFO] [stderr] | [INFO] [stderr] 118 | assert_eq!(total_primes, 586081); [INFO] [stderr] | ^^^^^^ help: consider: `586_081` [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/lib.rs:129:34 [INFO] [stderr] | [INFO] [stderr] 129 | assert_eq!(total_primes, 5761455); [INFO] [stderr] | ^^^^^^^ help: consider: `5_761_455` [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/lib.rs:133:19 [INFO] [stderr] | [INFO] [stderr] 133 | let min = 10000000000000000; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider: `10_000_000_000_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/lib.rs:134:19 [INFO] [stderr] | [INFO] [stderr] 134 | let max = 10000000100000000; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider: `10_000_000_100_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/lib.rs:141:34 [INFO] [stderr] | [INFO] [stderr] 141 | assert_eq!(total_primes, 2714904); [INFO] [stderr] | ^^^^^^^ help: consider: `2_714_904` [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: you seem to be trying to match on a boolean expression [INFO] [stderr] --> src/filter.rs:103:46 [INFO] [stderr] | [INFO] [stderr] 103 | let (mut n_1, mut to_next_n_1) = match y_sq < min_num { [INFO] [stderr] | ______________________________________________^ [INFO] [stderr] 104 | | false => (y_sq+4, 12), [INFO] [stderr] 105 | | _ => { [INFO] [stderr] 106 | | let min_num_x = (ceil_sqrt(min_num - y_sq) +1)/2; [INFO] [stderr] 107 | | (4*min_num_x*min_num_x + y_sq, 8*min_num_x + 4) [INFO] [stderr] 108 | | }, [INFO] [stderr] 109 | | }; [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_bool)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool [INFO] [stderr] help: consider using an if/else expression [INFO] [stderr] | [INFO] [stderr] 103 | let (mut n_1, mut to_next_n_1) = if y_sq < min_num { [INFO] [stderr] 104 | let min_num_x = (ceil_sqrt(min_num - y_sq) +1)/2; [INFO] [stderr] 105 | (4*min_num_x*min_num_x + y_sq, 8*min_num_x + 4) [INFO] [stderr] 106 | } else { (y_sq+4, 12) }; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to match on a boolean expression [INFO] [stderr] --> src/filter.rs:123:46 [INFO] [stderr] | [INFO] [stderr] 123 | let (mut n_2, mut to_next_n_2) = match y_sq < min_num { [INFO] [stderr] | ______________________________________________^ [INFO] [stderr] 124 | | false => (y_sq+3, 9), [INFO] [stderr] 125 | | _ => { [INFO] [stderr] 126 | | let min_num_x = (ceil_sqrt((min_num - y_sq)*3)+2)/3; [INFO] [stderr] 127 | | (3*min_num_x*min_num_x + y_sq, 6*min_num_x + 3) [INFO] [stderr] 128 | | }, [INFO] [stderr] 129 | | }; [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool [INFO] [stderr] help: consider using an if/else expression [INFO] [stderr] | [INFO] [stderr] 123 | let (mut n_2, mut to_next_n_2) = if y_sq < min_num { [INFO] [stderr] 124 | let min_num_x = (ceil_sqrt((min_num - y_sq)*3)+2)/3; [INFO] [stderr] 125 | (3*min_num_x*min_num_x + y_sq, 6*min_num_x + 3) [INFO] [stderr] 126 | } else { (y_sq+3, 9) }; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: you seem to be trying to match on a boolean expression [INFO] [stderr] --> src/filter.rs:143:46 [INFO] [stderr] | [INFO] [stderr] 143 | let (mut n_3, mut to_next_n_3) = match (y_sq << 1) < min_num { [INFO] [stderr] | ______________________________________________^ [INFO] [stderr] 144 | | false => (2*y_sq+3*to_next_y_sq, 6*to_next_y_sq+18), [INFO] [stderr] 145 | | _ => { [INFO] [stderr] 146 | | let min_num_x = match (ceil_sqrt((min_num + y_sq)*3) +2)/3{ [INFO] [stderr] ... | [INFO] [stderr] 151 | | }, [INFO] [stderr] 152 | | }; [INFO] [stderr] | |_____________^ [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool [INFO] [stderr] help: consider using an if/else expression [INFO] [stderr] | [INFO] [stderr] 143 | let (mut n_3, mut to_next_n_3) = if (y_sq << 1) < min_num { [INFO] [stderr] 144 | let min_num_x = match (ceil_sqrt((min_num + y_sq)*3) +2)/3{ [INFO] [stderr] 145 | mx if (mx+y_sq)%2 == 0 => mx + 1, [INFO] [stderr] 146 | mx => mx, [INFO] [stderr] 147 | }; [INFO] [stderr] 148 | (3*min_num_x*min_num_x - y_sq, 12*min_num_x + 12) [INFO] [stderr] ... [INFO] [stderr] [INFO] [stderr] warning: the loop variable `i` is used to index `prime_filter` [INFO] [stderr] --> src/filter.rs:221:18 [INFO] [stderr] | [INFO] [stderr] 221 | for i in (cur_num+1)..max_num{ [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] 221 | for (i, ) in prime_filter.iter_mut().enumerate().take(max_num).skip((cur_num+1)){ [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: you don't need to add `&` to all patterns [INFO] [stderr] --> src/collection.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | / match is_prime { [INFO] [stderr] 26 | | &true => Some(i + min_num), [INFO] [stderr] 27 | | _ => None [INFO] [stderr] 28 | | }).collect() [INFO] [stderr] | |_________^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::match_ref_pats)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats [INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression [INFO] [stderr] | [INFO] [stderr] 25 | match *is_prime { [INFO] [stderr] 26 | true => Some(i + min_num), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.61s [INFO] running `"docker" "inspect" "ddb03fa431c2dc03426ba46079e196198102fde9834b0f2e88ed6b519176ce94"` [INFO] running `"docker" "rm" "-f" "ddb03fa431c2dc03426ba46079e196198102fde9834b0f2e88ed6b519176ce94"` [INFO] [stdout] ddb03fa431c2dc03426ba46079e196198102fde9834b0f2e88ed6b519176ce94