[INFO] updating cached repository stephenpearson/project-euler-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stephenpearson/project-euler-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stephenpearson/project-euler-rust" "work/ex/clippy-test-run/sources/stable/gh/stephenpearson/project-euler-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/stephenpearson/project-euler-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stephenpearson/project-euler-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/stephenpearson/project-euler-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/stephenpearson/project-euler-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 191cf23a83a35d2d125e8511785cfd96e4eda9ff
[INFO] sha for GitHub repo stephenpearson/project-euler-rust: 191cf23a83a35d2d125e8511785cfd96e4eda9ff
[INFO] validating manifest of stephenpearson/project-euler-rust 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 stephenpearson/project-euler-rust 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 stephenpearson/project-euler-rust
[INFO] finished frobbing stephenpearson/project-euler-rust
[INFO] frobbed toml for stephenpearson/project-euler-rust written to work/ex/clippy-test-run/sources/stable/gh/stephenpearson/project-euler-rust/Cargo.toml
[INFO] started frobbing stephenpearson/project-euler-rust
[INFO] finished frobbing stephenpearson/project-euler-rust
[INFO] frobbed toml for stephenpearson/project-euler-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/stephenpearson/project-euler-rust/Cargo.toml
[INFO] crate stephenpearson/project-euler-rust 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 stephenpearson/project-euler-rust 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-3/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/stephenpearson/project-euler-rust:/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] 678e51d0b3f85ecd85ac602b3aad5e31245a7489facaba4009236105f4460102
[INFO] running `"docker" "start" "-a" "678e51d0b3f85ecd85ac602b3aad5e31245a7489facaba4009236105f4460102"`
[INFO] [stderr]     Checking euler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:37:28
[INFO] [stderr]    |
[INFO] [stderr] 37 |         Ordering::Equal => return x,
[INFO] [stderr]    |                            ^^^^^^^^ help: remove `return` as shown: `x`
[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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |         Ordering::Less => return gcd(x, y - x),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `gcd(x, y - x)`
[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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:39:30
[INFO] [stderr]    |
[INFO] [stderr] 39 |         Ordering::Greater => return gcd(x - y, y)
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `gcd(x - y, y)`
[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/p2/init.rs:7:16
[INFO] [stderr]   |
[INFO] [stderr] 7 |     while t2 < 4000000 {
[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/p3/init.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let value = 600851475143;
[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: unneeded return statement
[INFO] [stderr]   --> src/p4/init.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     return reversed == value;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `reversed == value`
[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: unneeded return statement
[INFO] [stderr]  --> src/p5/init.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     return true;
[INFO] [stderr]   |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: unneeded return statement
[INFO] [stderr]  --> src/p126/init.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     return 2 * x + 2 * y + 4 * (l - 1);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `2 * x + 2 * y + 4 * (l - 1)`
[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: unneeded return statement
[INFO] [stderr]   --> src/p126/init.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     return total;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `total`
[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: unneeded return statement
[INFO] [stderr]   --> src/p126/init.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     return 2 * cap(x, y, l) + z * ring(x, y, l);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `2 * cap(x, y, l) + z * ring(x, y, l)`
[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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     return true;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:37:28
[INFO] [stderr]    |
[INFO] [stderr] 37 |         Ordering::Equal => return x,
[INFO] [stderr]    |                            ^^^^^^^^ help: remove `return` as shown: `x`
[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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |         Ordering::Less => return gcd(x, y - x),
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `gcd(x, y - x)`
[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: unneeded return statement
[INFO] [stderr]   --> src/common/prime.rs:39:30
[INFO] [stderr]    |
[INFO] [stderr] 39 |         Ordering::Greater => return gcd(x - y, y)
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `gcd(x - y, y)`
[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/p2/init.rs:7:16
[INFO] [stderr]   |
[INFO] [stderr] 7 |     while t2 < 4000000 {
[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/p3/init.rs:6:17
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let value = 600851475143;
[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: unneeded return statement
[INFO] [stderr]   --> src/p4/init.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     return reversed == value;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `reversed == value`
[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: unneeded return statement
[INFO] [stderr]  --> src/p5/init.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     return true;
[INFO] [stderr]   |     ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[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: unneeded return statement
[INFO] [stderr]  --> src/p126/init.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     return 2 * x + 2 * y + 4 * (l - 1);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `2 * x + 2 * y + 4 * (l - 1)`
[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: unneeded return statement
[INFO] [stderr]   --> src/p126/init.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     return total;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `total`
[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: unneeded return statement
[INFO] [stderr]   --> src/p126/init.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     return 2 * cap(x, y, l) + z * ring(x, y, l);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `2 * cap(x, y, l) + z * ring(x, y, l)`
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/p2/init.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         t2 = t1 + t2;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `t2 += t1`
[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: using `clone` on a `Copy` type
[INFO] [stderr]  --> src/p4/init.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut acc = value.clone();
[INFO] [stderr]   |                   ^^^^^^^^^^^^^ help: try removing the `clone` call: `value`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]  --> src/p4/init.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         acc = acc / 10;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^ help: replace it with: `acc /= 10`
[INFO] [stderr]   |
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/p126/init.rs:19:16
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn show(count: &Vec<i32>) {
[INFO] [stderr]    |                ^^^^^^^^^ help: change this to: `&[i32]`
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/p2/init.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |         t2 = t1 + t2;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `t2 += t1`
[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: using `clone` on a `Copy` type
[INFO] [stderr]  --> src/p4/init.rs:5:19
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut acc = value.clone();
[INFO] [stderr]   |                   ^^^^^^^^^^^^^ help: try removing the `clone` call: `value`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]  --> src/p4/init.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         acc = acc / 10;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^ help: replace it with: `acc /= 10`
[INFO] [stderr]   |
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/p126/init.rs:19:16
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn show(count: &Vec<i32>) {
[INFO] [stderr]    |                ^^^^^^^^^ help: change this to: `&[i32]`
[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 0.99s
[INFO] running `"docker" "inspect" "678e51d0b3f85ecd85ac602b3aad5e31245a7489facaba4009236105f4460102"`
[INFO] running `"docker" "rm" "-f" "678e51d0b3f85ecd85ac602b3aad5e31245a7489facaba4009236105f4460102"`
[INFO] [stdout] 678e51d0b3f85ecd85ac602b3aad5e31245a7489facaba4009236105f4460102