[INFO] crate enum_like 0.2.1 is already in cache
[INFO] extracting crate enum_like 0.2.1 into work/ex/clippy-test-run/sources/stable/reg/enum_like/0.2.1
[INFO] extracting crate enum_like 0.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/enum_like/0.2.1
[INFO] validating manifest of enum_like-0.2.1 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 enum_like-0.2.1 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 enum_like-0.2.1
[INFO] finished frobbing enum_like-0.2.1
[INFO] frobbed toml for enum_like-0.2.1 written to work/ex/clippy-test-run/sources/stable/reg/enum_like/0.2.1/Cargo.toml
[INFO] started frobbing enum_like-0.2.1
[INFO] finished frobbing enum_like-0.2.1
[INFO] frobbed toml for enum_like-0.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/enum_like/0.2.1/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 enum_like-0.2.1 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-0/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/reg/enum_like/0.2.1:/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] 89792e1aa3cc9857d2532f3c798f17ac77f01cef12a4414f1d2a265d6606251d
[INFO] running `"docker" "start" "-a" "89792e1aa3cc9857d2532f3c798f17ac77f01cef12a4414f1d2a265d6606251d"`
[INFO] [stderr]     Checking enum_like v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]    --> src/lib.rs:161:9
[INFO] [stderr]     |
[INFO] [stderr] 161 |         ()
[INFO] [stderr]     |         ^^ help: remove the final `()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/lib.rs:619:9
[INFO] [stderr]     |
[INFO] [stderr] 619 |         remaining_elements
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/lib.rs:617:34
[INFO] [stderr]     |
[INFO] [stderr] 617 |         let remaining_elements = (self.max - self.current) as usize;
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]    --> src/lib.rs:161:9
[INFO] [stderr]     |
[INFO] [stderr] 161 |         ()
[INFO] [stderr]     |         ^^ help: remove the final `()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]    --> src/lib.rs:619:9
[INFO] [stderr]     |
[INFO] [stderr] 619 |         remaining_elements
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]    --> src/lib.rs:617:34
[INFO] [stderr]     |
[INFO] [stderr] 617 |         let remaining_elements = (self.max - self.current) as usize;
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/lib.rs:656:23
[INFO] [stderr]     |
[INFO] [stderr] 656 |             seen.push(i.clone());
[INFO] [stderr]     |                       ^^^^^^^^^ help: try removing the `clone` call: `i`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/lib.rs:657:23
[INFO] [stderr]     |
[INFO] [stderr] 657 |             let idx = i.clone().to_discr();
[INFO] [stderr]     |                       ^^^^^^^^^ help: try removing the `clone` call: `i`
[INFO] [stderr]     |
[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: the function has a cyclomatic complexity of 140
[INFO] [stderr]    --> src/lib.rs:807:5
[INFO] [stderr]     |
[INFO] [stderr] 807 | /     fn check_array_impls() {
[INFO] [stderr] 808 | |         // Helper function to convert from u32 to [bool; N]
[INFO] [stderr] 809 | |         // used to test everything
[INFO] [stderr] 810 | |         fn as_bool_vec(mut x: u32, n: usize) -> Vec<bool> {
[INFO] [stderr] ...   |
[INFO] [stderr] 863 | |         test_array_impl_n_short!(23, 24, 25, 26, 27, 28, 29, 30, 31, 32);
[INFO] [stderr] 864 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]    --> src/lib.rs:814:17
[INFO] [stderr]     |
[INFO] [stderr] 814 |                 x = x >> 1;
[INFO] [stderr]     |                 ^^^^^^^^^^ help: replace it with: `x >>= 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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/lib.rs:920:34
[INFO] [stderr]     |
[INFO] [stderr] 920 |         let a_p8 = PackedU8::new(a.clone());
[INFO] [stderr]     |                                  ^^^^^^^^^ help: try removing the `clone` call: `a`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/lib.rs:924:36
[INFO] [stderr]     |
[INFO] [stderr] 924 |         let b_p16 = PackedU16::new(b.clone());
[INFO] [stderr]     |                                    ^^^^^^^^^ help: try removing the `clone` call: `b`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `"docker" "inspect" "89792e1aa3cc9857d2532f3c798f17ac77f01cef12a4414f1d2a265d6606251d"`
[INFO] running `"docker" "rm" "-f" "89792e1aa3cc9857d2532f3c798f17ac77f01cef12a4414f1d2a265d6606251d"`
[INFO] [stdout] 89792e1aa3cc9857d2532f3c798f17ac77f01cef12a4414f1d2a265d6606251d