[INFO] updating cached repository ygree/rust_examples
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ygree/rust_examples
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ygree/rust_examples" "work/ex/clippy-test-run/sources/stable/gh/ygree/rust_examples"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ygree/rust_examples'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ygree/rust_examples" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ygree/rust_examples"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ygree/rust_examples'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 45f23c23ef3c1b360a02cb893a7cf784b2ec8fa9
[INFO] sha for GitHub repo ygree/rust_examples: 45f23c23ef3c1b360a02cb893a7cf784b2ec8fa9
[INFO] validating manifest of ygree/rust_examples 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 ygree/rust_examples 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 ygree/rust_examples
[INFO] finished frobbing ygree/rust_examples
[INFO] frobbed toml for ygree/rust_examples written to work/ex/clippy-test-run/sources/stable/gh/ygree/rust_examples/Cargo.toml
[INFO] started frobbing ygree/rust_examples
[INFO] finished frobbing ygree/rust_examples
[INFO] frobbed toml for ygree/rust_examples written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ygree/rust_examples/Cargo.toml
[INFO] crate ygree/rust_examples has a lockfile. skipping
[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 ygree/rust_examples 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-3/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/gh/ygree/rust_examples:/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] 0cc64934efc385723152e24cedbc618f4d0900661f0dd917beace5b1f4c28b48
[INFO] running `"docker" "start" "-a" "0cc64934efc385723152e24cedbc618f4d0900661f0dd917beace5b1f4c28b48"`
[INFO] [stderr]     Checking libc v0.2.35
[INFO] [stderr]     Checking rust_examples v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/bin/heap_sort.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 | /         if child_i < xs.len() {
[INFO] [stderr] 25 | |             if xs[child_i] > xs[i] {
[INFO] [stderr] 26 | |                 xs.swap(i, child_i);
[INFO] [stderr] 27 | |                 shift_down(xs, child_i);
[INFO] [stderr] 28 | |             }
[INFO] [stderr] 29 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 24 |         if child_i < xs.len() && xs[child_i] > xs[i] {
[INFO] [stderr] 25 |     xs.swap(i, child_i);
[INFO] [stderr] 26 |     shift_down(xs, child_i);
[INFO] [stderr] 27 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `PriorityQueue<T>`
[INFO] [stderr]   --> src/bin/heap_sort.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 | /     pub fn new() -> PriorityQueue<T> {
[INFO] [stderr] 77 | |         PriorityQueue { queue: Default::default() }
[INFO] [stderr] 78 | |     }
[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] 62 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rand v0.4.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking quickcheck v0.6.0
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]   --> src/bin/heap_sort.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 | /         if child_i < xs.len() {
[INFO] [stderr] 25 | |             if xs[child_i] > xs[i] {
[INFO] [stderr] 26 | |                 xs.swap(i, child_i);
[INFO] [stderr] 27 | |                 shift_down(xs, child_i);
[INFO] [stderr] 28 | |             }
[INFO] [stderr] 29 | |         }
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]    |
[INFO] [stderr] 24 |         if child_i < xs.len() && xs[child_i] > xs[i] {
[INFO] [stderr] 25 |     xs.swap(i, child_i);
[INFO] [stderr] 26 |     shift_down(xs, child_i);
[INFO] [stderr] 27 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `PriorityQueue<T>`
[INFO] [stderr]   --> src/bin/heap_sort.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 | /     pub fn new() -> PriorityQueue<T> {
[INFO] [stderr] 77 | |         PriorityQueue { queue: Default::default() }
[INFO] [stderr] 78 | |     }
[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] 62 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.81s
[INFO] running `"docker" "inspect" "0cc64934efc385723152e24cedbc618f4d0900661f0dd917beace5b1f4c28b48"`
[INFO] running `"docker" "rm" "-f" "0cc64934efc385723152e24cedbc618f4d0900661f0dd917beace5b1f4c28b48"`
[INFO] [stdout] 0cc64934efc385723152e24cedbc618f4d0900661f0dd917beace5b1f4c28b48