[INFO] updating cached repository colelawrence/rust_dijkstra
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/colelawrence/rust_dijkstra
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/colelawrence/rust_dijkstra" "work/ex/clippy-test-run/sources/stable/gh/colelawrence/rust_dijkstra"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/colelawrence/rust_dijkstra'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/colelawrence/rust_dijkstra" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/colelawrence/rust_dijkstra"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/colelawrence/rust_dijkstra'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 736f7d3f19ab489e4a63298da0bba592c81c3fd4
[INFO] sha for GitHub repo colelawrence/rust_dijkstra: 736f7d3f19ab489e4a63298da0bba592c81c3fd4
[INFO] validating manifest of colelawrence/rust_dijkstra 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 colelawrence/rust_dijkstra 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 colelawrence/rust_dijkstra
[INFO] finished frobbing colelawrence/rust_dijkstra
[INFO] frobbed toml for colelawrence/rust_dijkstra written to work/ex/clippy-test-run/sources/stable/gh/colelawrence/rust_dijkstra/Cargo.toml
[INFO] started frobbing colelawrence/rust_dijkstra
[INFO] finished frobbing colelawrence/rust_dijkstra
[INFO] frobbed toml for colelawrence/rust_dijkstra written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/colelawrence/rust_dijkstra/Cargo.toml
[INFO] crate colelawrence/rust_dijkstra 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 colelawrence/rust_dijkstra 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/gh/colelawrence/rust_dijkstra:/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] 246b5b0b41043e9ab1e377a719e948b8021aa29e7182d7c7e1f2c47ce059e743
[INFO] running `"docker" "start" "-a" "246b5b0b41043e9ab1e377a719e948b8021aa29e7182d7c7e1f2c47ce059e743"`
[INFO] [stderr]     Checking rust_dijkstra v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/graph.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 | /                         if !path.seen.contains_key(&next_id) {
[INFO] [stderr] 56 | |                             next.insert(next_id, walk(&choice_walk, next_id, next_id_distance));
[INFO] [stderr] 57 | |                         }
[INFO] [stderr]    | |_________________________^ help: consider using: `path.seen.entry(next_id).or_insert(walk(&choice_walk, next_id, next_id_distance))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `graph::G<T>`
[INFO] [stderr]    --> src/graph.rs:97:5
[INFO] [stderr]     |
[INFO] [stderr] 97  | /     pub fn new() -> G<T> {
[INFO] [stderr] 98  | |         G {
[INFO] [stderr] 99  | |             vertices: Vec::new(),
[INFO] [stderr] 100 | |             edges: HashMap::new(),
[INFO] [stderr] 101 | |         }
[INFO] [stderr] 102 | |     }
[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] 8   | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:85:41
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let es = self.edges.entry(from).or_insert(Vec::new());
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/graph.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 | /                         if !path.seen.contains_key(&next_id) {
[INFO] [stderr] 56 | |                             next.insert(next_id, walk(&choice_walk, next_id, next_id_distance));
[INFO] [stderr] 57 | |                         }
[INFO] [stderr]    | |_________________________^ help: consider using: `path.seen.entry(next_id).or_insert(walk(&choice_walk, next_id, next_id_distance))`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `graph::G<T>`
[INFO] [stderr]    --> src/graph.rs:97:5
[INFO] [stderr]     |
[INFO] [stderr] 97  | /     pub fn new() -> G<T> {
[INFO] [stderr] 98  | |         G {
[INFO] [stderr] 99  | |             vertices: Vec::new(),
[INFO] [stderr] 100 | |             edges: HashMap::new(),
[INFO] [stderr] 101 | |         }
[INFO] [stderr] 102 | |     }
[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] 8   | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:85:41
[INFO] [stderr]    |
[INFO] [stderr] 85 |         let es = self.edges.entry(from).or_insert(Vec::new());
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Vec::new)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "246b5b0b41043e9ab1e377a719e948b8021aa29e7182d7c7e1f2c47ce059e743"`
[INFO] running `"docker" "rm" "-f" "246b5b0b41043e9ab1e377a719e948b8021aa29e7182d7c7e1f2c47ce059e743"`
[INFO] [stdout] 246b5b0b41043e9ab1e377a719e948b8021aa29e7182d7c7e1f2c47ce059e743