[INFO] updating cached repository ashelleyPurdue/rust_prng
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ashelleyPurdue/rust_prng
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ashelleyPurdue/rust_prng" "work/ex/clippy-test-run/sources/stable/gh/ashelleyPurdue/rust_prng"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ashelleyPurdue/rust_prng'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ashelleyPurdue/rust_prng" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ashelleyPurdue/rust_prng"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ashelleyPurdue/rust_prng'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 948fa6b1a85743cb932169b13ec47ea1c21fc390
[INFO] sha for GitHub repo ashelleyPurdue/rust_prng: 948fa6b1a85743cb932169b13ec47ea1c21fc390
[INFO] validating manifest of ashelleyPurdue/rust_prng 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 ashelleyPurdue/rust_prng 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 ashelleyPurdue/rust_prng
[INFO] finished frobbing ashelleyPurdue/rust_prng
[INFO] frobbed toml for ashelleyPurdue/rust_prng written to work/ex/clippy-test-run/sources/stable/gh/ashelleyPurdue/rust_prng/Cargo.toml
[INFO] started frobbing ashelleyPurdue/rust_prng
[INFO] finished frobbing ashelleyPurdue/rust_prng
[INFO] frobbed toml for ashelleyPurdue/rust_prng written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ashelleyPurdue/rust_prng/Cargo.toml
[INFO] crate ashelleyPurdue/rust_prng 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 ashelleyPurdue/rust_prng against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/ashelleyPurdue/rust_prng:/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] b14b7f0ee46844a4c17467c66a0cdb4de5ea152722d98a3d6a5d1210e58f4a62
[INFO] running `"docker" "start" "-a" "b14b7f0ee46844a4c17467c66a0cdb4de5ea152722d98a3d6a5d1210e58f4a62"`
[INFO] [stderr]     Checking rng_struct v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/random.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             seed: seed,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `seed`
[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: using `println!("")`
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         println!("");
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/random.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |             seed: seed,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `seed`
[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: using `println!("")`
[INFO] [stderr]   --> src/main.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         println!("");
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/random.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         return output % max;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `output % max`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/hashing.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^^^^^^ help: consider: `2_305_843_009_213_693_951`
[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: unneeded return statement
[INFO] [stderr]   --> src/hashing.rs:15:2
[INFO] [stderr]    |
[INFO] [stderr] 15 |     return h;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `h`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/hashing.rs:11:35
[INFO] [stderr]    |
[INFO] [stderr] 11 |     h = (h ^ (h >> 30)).wrapping_mul(0xbf58476d1ce4e5b9);
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^ help: consider: `0xbf58_476d_1ce4_e5b9`
[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/hashing.rs:12:35
[INFO] [stderr]    |
[INFO] [stderr] 12 |     h = (h ^ (h >> 27)).wrapping_mul(0x94d049bb133111eb);
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^ help: consider: `0x94d0_49bb_1331_11eb`
[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: unneeded return statement
[INFO] [stderr]   --> src/hashing.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return mod_exp(BASE, num, LARGEST_U64_PRIME);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `mod_exp(BASE, num, LARGEST_U64_PRIME)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/hashing.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     const BASE: u64 = 5009424631521124603;    // A huge randomly-chose prime.
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: consider: `5_009_424_631_521_124_603`
[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: unneeded return statement
[INFO] [stderr]   --> src/hashing.rs:52:2
[INFO] [stderr]    |
[INFO] [stderr] 52 |     return result;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `seed`
[INFO] [stderr]  --> src/random.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     seed: u64,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
[INFO] [stderr]  --> src/hashing.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp_hash`
[INFO] [stderr]   --> src/hashing.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp`
[INFO] [stderr]   --> src/hashing.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/hashing.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |         exp = exp >> 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: replace it with: `exp >>= 1`
[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: unneeded return statement
[INFO] [stderr]   --> src/random.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         return output % max;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `output % max`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]  --> src/hashing.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
[INFO] [stderr]   |                                ^^^^^^^^^^^^^^^^^^^ help: consider: `2_305_843_009_213_693_951`
[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: unneeded return statement
[INFO] [stderr]   --> src/hashing.rs:15:2
[INFO] [stderr]    |
[INFO] [stderr] 15 |     return h;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `h`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/hashing.rs:11:35
[INFO] [stderr]    |
[INFO] [stderr] 11 |     h = (h ^ (h >> 30)).wrapping_mul(0xbf58476d1ce4e5b9);
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^ help: consider: `0xbf58_476d_1ce4_e5b9`
[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/hashing.rs:12:35
[INFO] [stderr]    |
[INFO] [stderr] 12 |     h = (h ^ (h >> 27)).wrapping_mul(0x94d049bb133111eb);
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^ help: consider: `0x94d0_49bb_1331_11eb`
[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: unneeded return statement
[INFO] [stderr]   --> src/hashing.rs:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |     return mod_exp(BASE, num, LARGEST_U64_PRIME);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `mod_exp(BASE, num, LARGEST_U64_PRIME)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/hashing.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     const BASE: u64 = 5009424631521124603;    // A huge randomly-chose prime.
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^ help: consider: `5_009_424_631_521_124_603`
[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: unneeded return statement
[INFO] [stderr]   --> src/hashing.rs:52:2
[INFO] [stderr]    |
[INFO] [stderr] 52 |     return result;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `seed`
[INFO] [stderr]  --> src/random.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     seed: u64,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LARGEST_U64_PRIME`
[INFO] [stderr]  --> src/hashing.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | const LARGEST_U64_PRIME: u64 = 2305843009213693951;        // Equivalent to 61 straight 1's in binary
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp_hash`
[INFO] [stderr]   --> src/hashing.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn mod_exp_hash(num: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mod_exp`
[INFO] [stderr]   --> src/hashing.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn mod_exp(base: u64, exp: u64, modulo: u64) -> u64
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/hashing.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |         exp = exp >> 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: replace it with: `exp >>= 1`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "b14b7f0ee46844a4c17467c66a0cdb4de5ea152722d98a3d6a5d1210e58f4a62"`
[INFO] running `"docker" "rm" "-f" "b14b7f0ee46844a4c17467c66a0cdb4de5ea152722d98a3d6a5d1210e58f4a62"`
[INFO] [stdout] b14b7f0ee46844a4c17467c66a0cdb4de5ea152722d98a3d6a5d1210e58f4a62