[INFO] crate trove 1.0.1 is already in cache
[INFO] extracting crate trove 1.0.1 into work/ex/clippy-test-run/sources/stable/reg/trove/1.0.1
[INFO] extracting crate trove 1.0.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/trove/1.0.1
[INFO] validating manifest of trove-1.0.1 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 trove-1.0.1 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 trove-1.0.1
[INFO] finished frobbing trove-1.0.1
[INFO] frobbed toml for trove-1.0.1 written to work/ex/clippy-test-run/sources/stable/reg/trove/1.0.1/Cargo.toml
[INFO] started frobbing trove-1.0.1
[INFO] finished frobbing trove-1.0.1
[INFO] frobbed toml for trove-1.0.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/trove/1.0.1/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 trove-1.0.1 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-6/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/trove/1.0.1:/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] b1fdf7a7e203d78c43bf5287bed608ddf0d73bb66ec159262f5ac071b70c14d9
[INFO] running `"docker" "start" "-a" "b1fdf7a7e203d78c43bf5287bed608ddf0d73bb66ec159262f5ac071b70c14d9"`
[INFO] [stderr]     Checking trove v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: lint name `mut_from_ref` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]  --> src/lib.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![allow(mut_from_ref)]
[INFO] [stderr]   |          ^^^^^^^^^^^^ help: change it to: `clippy::mut_from_ref`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `mut_from_ref` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]  --> src/lib.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![allow(mut_from_ref)]
[INFO] [stderr]   |          ^^^^^^^^^^^^ help: change it to: `clippy::mut_from_ref`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `mut_from_ref` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]  --> src/lib.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![allow(mut_from_ref)]
[INFO] [stderr]   |          ^^^^^^^^^^^^ help: change it to: `clippy::mut_from_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: lint name `mut_from_ref` is deprecated and may not have an effect in the future. Also `cfg_attr(cargo-clippy)` won't be necessary anymore
[INFO] [stderr]  --> src/lib.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![allow(mut_from_ref)]
[INFO] [stderr]   |          ^^^^^^^^^^^^ help: change it to: `clippy::mut_from_ref`
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/lib.rs:142:56
[INFO] [stderr]     |
[INFO] [stderr] 142 |             let from_a = arenas_a.iter().map(|(k, v)| (k.clone(), v.clone()));
[INFO] [stderr]     |                                                        ^^^^^^^^^ help: try removing the `clone` call: `k`
[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:143:56
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let from_b = arenas_b.iter().map(|(k, v)| (k.clone(), v.clone()));
[INFO] [stderr]     |                                                        ^^^^^^^^^ help: try removing the `clone` call: `k`
[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: redundant closure found
[INFO] [stderr]    --> src/lib.rs:196:26
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 .map_err(|e| Either::Left(e))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Either::Left`
[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: redundant closure found
[INFO] [stderr]    --> src/lib.rs:199:51
[INFO] [stderr]     |
[INFO] [stderr] 199 |                 (*self.try_get(arena_idx).map_err(|e| Either::Right(e))?)
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Either::Right`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `try_get` doesn't need a mutable reference
[INFO] [stderr]    --> src/lib.rs:346:35
[INFO] [stderr]     |
[INFO] [stderr] 346 |         let ref_c = arena.try_get(&mut a);
[INFO] [stderr]     |                                   ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/lib.rs:395:17
[INFO] [stderr]     |
[INFO] [stderr] 395 |         let c = 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] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/lib.rs:142:56
[INFO] [stderr]     |
[INFO] [stderr] 142 |             let from_a = arenas_a.iter().map(|(k, v)| (k.clone(), v.clone()));
[INFO] [stderr]     |                                                        ^^^^^^^^^ help: try removing the `clone` call: `k`
[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:143:56
[INFO] [stderr]     |
[INFO] [stderr] 143 |             let from_b = arenas_b.iter().map(|(k, v)| (k.clone(), v.clone()));
[INFO] [stderr]     |                                                        ^^^^^^^^^ help: try removing the `clone` call: `k`
[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: redundant closure found
[INFO] [stderr]    --> src/lib.rs:196:26
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 .map_err(|e| Either::Left(e))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Either::Left`
[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: redundant closure found
[INFO] [stderr]    --> src/lib.rs:199:51
[INFO] [stderr]     |
[INFO] [stderr] 199 |                 (*self.try_get(arena_idx).map_err(|e| Either::Right(e))?)
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Either::Right`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "b1fdf7a7e203d78c43bf5287bed608ddf0d73bb66ec159262f5ac071b70c14d9"`
[INFO] running `"docker" "rm" "-f" "b1fdf7a7e203d78c43bf5287bed608ddf0d73bb66ec159262f5ac071b70c14d9"`
[INFO] [stdout] b1fdf7a7e203d78c43bf5287bed608ddf0d73bb66ec159262f5ac071b70c14d9