[INFO] crate generational-arena 0.2.0 is already in cache
[INFO] extracting crate generational-arena 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/generational-arena/0.2.0
[INFO] extracting crate generational-arena 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/generational-arena/0.2.0
[INFO] validating manifest of generational-arena-0.2.0 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 generational-arena-0.2.0 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 generational-arena-0.2.0
[INFO] finished frobbing generational-arena-0.2.0
[INFO] frobbed toml for generational-arena-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/generational-arena/0.2.0/Cargo.toml
[INFO] started frobbing generational-arena-0.2.0
[INFO] finished frobbing generational-arena-0.2.0
[INFO] frobbed toml for generational-arena-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/generational-arena/0.2.0/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 generational-arena-0.2.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/generational-arena/0.2.0:/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] e2ebf9d1cc02c2dbffddb8405703104e794baaa1b21d5d54775c36b33ac97a2e
[INFO] running `"docker" "start" "-a" "e2ebf9d1cc02c2dbffddb8405703104e794baaa1b21d5d54775c36b33ac97a2e"`
[INFO] [stderr]     Checking generational-arena v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking serde_test v1.0.85
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Arena<T>`
[INFO] [stderr]    --> src/lib.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 223 | /     pub fn new() -> Arena<T> {
[INFO] [stderr] 224 | |         Arena::with_capacity(DEFAULT_CAPACITY)
[INFO] [stderr] 225 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 177 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Checking criterion v0.2.9
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Arena<T>`
[INFO] [stderr]    --> src/lib.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 223 | /     pub fn new() -> Arena<T> {
[INFO] [stderr] 224 | |         Arena::with_capacity(DEFAULT_CAPACITY)
[INFO] [stderr] 225 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 177 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: statement with no effect
[INFO] [stderr]    --> tests/tests.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     arena[idx];
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::no_effect)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#no_effect
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.94s
[INFO] running `"docker" "inspect" "e2ebf9d1cc02c2dbffddb8405703104e794baaa1b21d5d54775c36b33ac97a2e"`
[INFO] running `"docker" "rm" "-f" "e2ebf9d1cc02c2dbffddb8405703104e794baaa1b21d5d54775c36b33ac97a2e"`
[INFO] [stdout] e2ebf9d1cc02c2dbffddb8405703104e794baaa1b21d5d54775c36b33ac97a2e