[INFO] crate id_tree 1.3.0 is already in cache
[INFO] extracting crate id_tree 1.3.0 into work/ex/clippy-test-run/sources/stable/reg/id_tree/1.3.0
[INFO] extracting crate id_tree 1.3.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/id_tree/1.3.0
[INFO] validating manifest of id_tree-1.3.0 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 id_tree-1.3.0 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 id_tree-1.3.0
[INFO] removed 0 missing examples
[INFO] finished frobbing id_tree-1.3.0
[INFO] frobbed toml for id_tree-1.3.0 written to work/ex/clippy-test-run/sources/stable/reg/id_tree/1.3.0/Cargo.toml
[INFO] started frobbing id_tree-1.3.0
[INFO] removed 0 missing examples
[INFO] finished frobbing id_tree-1.3.0
[INFO] frobbed toml for id_tree-1.3.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/id_tree/1.3.0/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 id_tree-1.3.0 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/id_tree/1.3.0:/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] 72f876956c373bee6284b8e83eed339492ee106ad0b79e4b4b1bd17f9214fa52
[INFO] running `"docker" "start" "-a" "72f876956c373bee6284b8e83eed339492ee106ad0b79e4b4b1bd17f9214fa52"`
[INFO] [stderr]     Checking id_tree v1.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iterators.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             tree: tree,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iterators.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             tree: tree,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iterators.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             tree: tree,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]    |
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iterators.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |             tree: tree,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iterators.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             tree: tree,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]    |
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |             tree: tree,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |             data: data,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/iterators.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |             tree: tree,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |             tree: tree,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |             tree: tree,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |             tree: tree,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:155:13
[INFO] [stderr]     |
[INFO] [stderr] 155 |             data: data,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr] 
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |             data: data,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:197:13
[INFO] [stderr]     |
[INFO] [stderr] 197 |             tree: tree,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |             tree: tree,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `tree`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/iterators.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |             data: data,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/node.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             data: data,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/tree.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 tree_id: tree_id,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: replace it with: `tree_id`
[INFO] [stderr]     |
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/node.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             data: data,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `data`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/tree.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 tree_id: tree_id,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: replace it with: `tree_id`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `tree::TreeBuilder<T>`
[INFO] [stderr]   --> src/tree.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | /     pub fn new() -> TreeBuilder<T> {
[INFO] [stderr] 26 | |         TreeBuilder {
[INFO] [stderr] 27 | |             root: None,
[INFO] [stderr] 28 | |             node_capacity: 0,
[INFO] [stderr] 29 | |             swap_capacity: 0,
[INFO] [stderr] 30 | |         }
[INFO] [stderr] 31 | |     }
[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] 9  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `tree::Tree<T>`
[INFO] [stderr]    --> src/tree.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 | /     pub fn new() -> Tree<T> {
[INFO] [stderr] 174 | |         TreeBuilder::new().build()
[INFO] [stderr] 175 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[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] 156 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `tree::TreeBuilder<T>`
[INFO] [stderr]   --> src/tree.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | /     pub fn new() -> TreeBuilder<T> {
[INFO] [stderr] 26 | |         TreeBuilder {
[INFO] [stderr] 27 | |             root: None,
[INFO] [stderr] 28 | |             node_capacity: 0,
[INFO] [stderr] 29 | |             swap_capacity: 0,
[INFO] [stderr] 30 | |         }
[INFO] [stderr] 31 | |     }
[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] 9  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `tree::Tree<T>`
[INFO] [stderr]    --> src/tree.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 | /     pub fn new() -> Tree<T> {
[INFO] [stderr] 174 | |         TreeBuilder::new().build()
[INFO] [stderr] 175 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[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] 156 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]     --> src/tree.rs:1601:26
[INFO] [stderr]      |
[INFO] [stderr] 1601 |         let child_1_id = root_children.get(0).unwrap();
[INFO] [stderr]      |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&root_children[0]`
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a slice. Using `[]` is more clear and more concise
[INFO] [stderr]     --> src/tree.rs:1602:26
[INFO] [stderr]      |
[INFO] [stderr] 1602 |         let child_2_id = root_children.get(1).unwrap();
[INFO] [stderr]      |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&root_children[1]`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 39
[INFO] [stderr]     --> src/tree.rs:1979:5
[INFO] [stderr]      |
[INFO] [stderr] 1979 | /     fn test_swap_nodes_leave_children() {
[INFO] [stderr] 1980 | |         use InsertBehavior::*;
[INFO] [stderr] 1981 | |         use MoveBehavior::*;
[INFO] [stderr] 1982 | |         use RemoveBehavior::*;
[INFO] [stderr] ...    |
[INFO] [stderr] 2239 | |         }
[INFO] [stderr] 2240 | |     }
[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] warning: the function has a cyclomatic complexity of 36
[INFO] [stderr]     --> src/tree.rs:2243:5
[INFO] [stderr]      |
[INFO] [stderr] 2243 | /     fn test_swap_nodes_children_only() {
[INFO] [stderr] 2244 | |         use InsertBehavior::*;
[INFO] [stderr] 2245 | |         use SwapBehavior::*;
[INFO] [stderr] 2246 | |
[INFO] [stderr] ...    |
[INFO] [stderr] 2468 | |         }
[INFO] [stderr] 2469 | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      |
[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 2.72s
[INFO] running `"docker" "inspect" "72f876956c373bee6284b8e83eed339492ee106ad0b79e4b4b1bd17f9214fa52"`
[INFO] running `"docker" "rm" "-f" "72f876956c373bee6284b8e83eed339492ee106ad0b79e4b4b1bd17f9214fa52"`
[INFO] [stdout] 72f876956c373bee6284b8e83eed339492ee106ad0b79e4b4b1bd17f9214fa52