[INFO] crate forests 0.0.2 is already in cache
[INFO] extracting crate forests 0.0.2 into work/ex/clippy-test-run/sources/stable/reg/forests/0.0.2
[INFO] extracting crate forests 0.0.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/forests/0.0.2
[INFO] validating manifest of forests-0.0.2 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 forests-0.0.2 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 forests-0.0.2
[INFO] finished frobbing forests-0.0.2
[INFO] frobbed toml for forests-0.0.2 written to work/ex/clippy-test-run/sources/stable/reg/forests/0.0.2/Cargo.toml
[INFO] started frobbing forests-0.0.2
[INFO] finished frobbing forests-0.0.2
[INFO] frobbed toml for forests-0.0.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/forests/0.0.2/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 forests-0.0.2 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-6/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/forests/0.0.2:/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] 6009d8861e0c8e343203a5b8bde223d81facd896a8e4f7e463de49ca1cd87f23
[INFO] running `"docker" "start" "-a" "6009d8861e0c8e343203a5b8bde223d81facd896a8e4f7e463de49ca1cd87f23"`
[INFO] [stderr]     Checking forests v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/primitive/mod.rs:125:45
[INFO] [stderr]     |
[INFO] [stderr] 125 |     mem::transmute(ForestRefRepr { data: p, len: len })
[INFO] [stderr]     |                                             ^^^^^^^^ help: replace it with: `len`
[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/primitive/mod.rs:133:45
[INFO] [stderr]     |
[INFO] [stderr] 133 |     mem::transmute(ForestRefRepr { data: p, len: len })
[INFO] [stderr]     |                                             ^^^^^^^^ help: replace it with: `len`
[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/primitive/mod.rs:125:45
[INFO] [stderr]     |
[INFO] [stderr] 125 |     mem::transmute(ForestRefRepr { data: p, len: len })
[INFO] [stderr]     |                                             ^^^^^^^^ help: replace it with: `len`
[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/primitive/mod.rs:133:45
[INFO] [stderr]     |
[INFO] [stderr] 133 |     mem::transmute(ForestRefRepr { data: p, len: len })
[INFO] [stderr]     |                                             ^^^^^^^^ help: replace it with: `len`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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 Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:52:25
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:64:25
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:81:29
[INFO] [stderr]    |
[INFO] [stderr] 81 |             let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:103:30
[INFO] [stderr]     |
[INFO] [stderr] 103 |             let prev_entry = self.data.get_mut(prev_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[prev_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:107:30
[INFO] [stderr]     |
[INFO] [stderr] 107 |             let next_entry = self.data.get_mut(next_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[next_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:132:28
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let parent_entry = self.data.get_mut(parent_idx).unwrap();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[parent_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:144:29
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:151:30
[INFO] [stderr]     |
[INFO] [stderr] 151 |             let prev_entry = self.data.get_mut(cur_prev_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_prev_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:155:30
[INFO] [stderr]     |
[INFO] [stderr] 155 |             let next_entry = self.data.get_mut(cur_next_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_next_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:163:29
[INFO] [stderr]     |
[INFO] [stderr] 163 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:168:32
[INFO] [stderr]     |
[INFO] [stderr] 168 |             let parent_entry = self.data.get_mut(parent_idx).unwrap();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[parent_idx]`
[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: item `primitive::forest<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/primitive/mod.rs:78:1
[INFO] [stderr]     |
[INFO] [stderr] 78  | / impl<T> forest<T> {
[INFO] [stderr] 79  | |     pub fn len(&self) -> usize {
[INFO] [stderr] 80  | |         self.data.len()
[INFO] [stderr] 81  | |     }
[INFO] [stderr] ...   |
[INFO] [stderr] 111 | |     }
[INFO] [stderr] 112 | | }
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:46:25
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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 Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:52:25
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:58:25
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:64:25
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:70:25
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:81:29
[INFO] [stderr]    |
[INFO] [stderr] 81 |             let cur_entry = self.data.get(cur_idx).unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/collections/mod.rs:98:29
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:103:30
[INFO] [stderr]     |
[INFO] [stderr] 103 |             let prev_entry = self.data.get_mut(prev_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[prev_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:107:30
[INFO] [stderr]     |
[INFO] [stderr] 107 |             let next_entry = self.data.get_mut(next_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[next_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:127:29
[INFO] [stderr]     |
[INFO] [stderr] 127 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:132:28
[INFO] [stderr]     |
[INFO] [stderr] 132 |         let parent_entry = self.data.get_mut(parent_idx).unwrap();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[parent_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:144:29
[INFO] [stderr]     |
[INFO] [stderr] 144 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:151:30
[INFO] [stderr]     |
[INFO] [stderr] 151 |             let prev_entry = self.data.get_mut(cur_prev_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_prev_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:155:30
[INFO] [stderr]     |
[INFO] [stderr] 155 |             let next_entry = self.data.get_mut(cur_next_idx).unwrap();
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_next_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:163:29
[INFO] [stderr]     |
[INFO] [stderr] 163 |             let cur_entry = self.data.get_mut(cur_idx).unwrap();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[cur_idx]`
[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: called `.get_mut().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/collections/mod.rs:168:32
[INFO] [stderr]     |
[INFO] [stderr] 168 |             let parent_entry = self.data.get_mut(parent_idx).unwrap();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.data[parent_idx]`
[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: item `primitive::forest<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/primitive/mod.rs:78:1
[INFO] [stderr]     |
[INFO] [stderr] 78  | / impl<T> forest<T> {
[INFO] [stderr] 79  | |     pub fn len(&self) -> usize {
[INFO] [stderr] 80  | |         self.data.len()
[INFO] [stderr] 81  | |     }
[INFO] [stderr] ...   |
[INFO] [stderr] 111 | |     }
[INFO] [stderr] 112 | | }
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "6009d8861e0c8e343203a5b8bde223d81facd896a8e4f7e463de49ca1cd87f23"`
[INFO] running `"docker" "rm" "-f" "6009d8861e0c8e343203a5b8bde223d81facd896a8e4f7e463de49ca1cd87f23"`
[INFO] [stdout] 6009d8861e0c8e343203a5b8bde223d81facd896a8e4f7e463de49ca1cd87f23