[INFO] crate primitivemap 0.1.0 is already in cache
[INFO] extracting crate primitivemap 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/primitivemap/0.1.0
[INFO] extracting crate primitivemap 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/primitivemap/0.1.0
[INFO] validating manifest of primitivemap-0.1.0 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 primitivemap-0.1.0 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 primitivemap-0.1.0
[INFO] finished frobbing primitivemap-0.1.0
[INFO] frobbed toml for primitivemap-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/primitivemap/0.1.0/Cargo.toml
[INFO] started frobbing primitivemap-0.1.0
[INFO] finished frobbing primitivemap-0.1.0
[INFO] frobbed toml for primitivemap-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/primitivemap/0.1.0/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 primitivemap-0.1.0 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-1/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/primitivemap/0.1.0:/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 -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] 7f5beef89680ab6c264ecbee231f0bb84ad8bc5afdc5ba9e5948d7d4746f9f69
[INFO] running `"docker" "start" "-a" "7f5beef89680ab6c264ecbee231f0bb84ad8bc5afdc5ba9e5948d7d4746f9f69"`
[INFO] [stderr]     Checking primitivemap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait `BucketList` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/bucket.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | / pub trait BucketList<K: Key, V: Value> {
[INFO] [stderr] 74 | |     type Bucket: Bucket<K, V>;
[INFO] [stderr] 75 | |
[INFO] [stderr] 76 | |     fn empty() -> Self;
[INFO] [stderr] ...  |
[INFO] [stderr] 79 | |     fn get_mut(&mut self, idx: usize) -> &mut Self::Bucket;
[INFO] [stderr] 80 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: trait `BucketList` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/bucket.rs:73:1
[INFO] [stderr]    |
[INFO] [stderr] 73 | / pub trait BucketList<K: Key, V: Value> {
[INFO] [stderr] 74 | |     type Bucket: Bucket<K, V>;
[INFO] [stderr] 75 | |
[INFO] [stderr] 76 | |     fn empty() -> Self;
[INFO] [stderr] ...  |
[INFO] [stderr] 79 | |     fn get_mut(&mut self, idx: usize) -> &mut Self::Bucket;
[INFO] [stderr] 80 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/bench.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `primitivemap`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7f5beef89680ab6c264ecbee231f0bb84ad8bc5afdc5ba9e5948d7d4746f9f69"`
[INFO] running `"docker" "rm" "-f" "7f5beef89680ab6c264ecbee231f0bb84ad8bc5afdc5ba9e5948d7d4746f9f69"`
[INFO] [stdout] 7f5beef89680ab6c264ecbee231f0bb84ad8bc5afdc5ba9e5948d7d4746f9f69