[INFO] crate index-pool 1.0.11 is already in cache
[INFO] extracting crate index-pool 1.0.11 into work/ex/clippy-test-run/sources/stable/reg/index-pool/1.0.11
[INFO] extracting crate index-pool 1.0.11 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/index-pool/1.0.11
[INFO] validating manifest of index-pool-1.0.11 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 index-pool-1.0.11 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 index-pool-1.0.11
[INFO] finished frobbing index-pool-1.0.11
[INFO] frobbed toml for index-pool-1.0.11 written to work/ex/clippy-test-run/sources/stable/reg/index-pool/1.0.11/Cargo.toml
[INFO] started frobbing index-pool-1.0.11
[INFO] finished frobbing index-pool-1.0.11
[INFO] frobbed toml for index-pool-1.0.11 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/index-pool/1.0.11/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 index-pool-1.0.11 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/index-pool/1.0.11:/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] 91560e0fa50570e2b5fdcd16bcdf5946a26c96165c0d25d57519e671a63f7801
[INFO] running `"docker" "start" "-a" "91560e0fa50570e2b5fdcd16bcdf5946a26c96165c0d25d57519e671a63f7801"`
[INFO] [stderr]     Checking free-ranges v1.0.7
[INFO] [stderr]     Checking index-pool v1.0.11 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lib.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         return id;
[INFO] [stderr]    |         ^^^^^^^^^^ help: remove `return` as shown: `id`
[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/lib.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         return id;
[INFO] [stderr]    |         ^^^^^^^^^^ help: remove `return` as shown: `id`
[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: the function has a cyclomatic complexity of 38
[INFO] [stderr]   --> tests/basic_test.rs:5:1
[INFO] [stderr]    |
[INFO] [stderr] 5  | / fn basic_test() {
[INFO] [stderr] 6  | |     let mut pool = IndexPool::new();
[INFO] [stderr] 7  | |
[INFO] [stderr] 8  | |     assert!(pool.is_free(0));
[INFO] [stderr] ...  |
[INFO] [stderr] 73 | |     assert!(pool.all_indices().eq([0, 1, 2].iter().cloned()));
[INFO] [stderr] 74 | | }
[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]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `"docker" "inspect" "91560e0fa50570e2b5fdcd16bcdf5946a26c96165c0d25d57519e671a63f7801"`
[INFO] running `"docker" "rm" "-f" "91560e0fa50570e2b5fdcd16bcdf5946a26c96165c0d25d57519e671a63f7801"`
[INFO] [stdout] 91560e0fa50570e2b5fdcd16bcdf5946a26c96165c0d25d57519e671a63f7801