[INFO] updating cached repository vpeurala/reaktor-fast-track-2
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vpeurala/reaktor-fast-track-2
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vpeurala/reaktor-fast-track-2" "work/ex/clippy-test-run/sources/stable/gh/vpeurala/reaktor-fast-track-2"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/vpeurala/reaktor-fast-track-2'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vpeurala/reaktor-fast-track-2" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vpeurala/reaktor-fast-track-2"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vpeurala/reaktor-fast-track-2'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cacebe3d7945974f6d1f4829231499a614b84b76
[INFO] sha for GitHub repo vpeurala/reaktor-fast-track-2: cacebe3d7945974f6d1f4829231499a614b84b76
[INFO] validating manifest of vpeurala/reaktor-fast-track-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 vpeurala/reaktor-fast-track-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 vpeurala/reaktor-fast-track-2
[INFO] finished frobbing vpeurala/reaktor-fast-track-2
[INFO] frobbed toml for vpeurala/reaktor-fast-track-2 written to work/ex/clippy-test-run/sources/stable/gh/vpeurala/reaktor-fast-track-2/Cargo.toml
[INFO] started frobbing vpeurala/reaktor-fast-track-2
[INFO] finished frobbing vpeurala/reaktor-fast-track-2
[INFO] frobbed toml for vpeurala/reaktor-fast-track-2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/vpeurala/reaktor-fast-track-2/Cargo.toml
[INFO] crate vpeurala/reaktor-fast-track-2 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 vpeurala/reaktor-fast-track-2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/vpeurala/reaktor-fast-track-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" "-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] a33e6c8f80b30f05fe575c8f22f0f0a4d396278d50da73f719dfebbfb682ebcd
[INFO] running `"docker" "start" "-a" "a33e6c8f80b30f05fe575c8f22f0f0a4d396278d50da73f719dfebbfb682ebcd"`
[INFO] [stderr]     Checking serde v1.0.24
[INFO] [stderr]    Compiling serde_derive_internals v0.18.0
[INFO] [stderr]    Compiling serde_derive v1.0.24
[INFO] [stderr]     Checking serde_json v1.0.8
[INFO] [stderr]     Checking serde_test v1.0.24
[INFO] [stderr]     Checking reaktor_fast_track_2 v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/graph.rs:131:32
[INFO] [stderr]     |
[INFO] [stderr] 131 |     AdjacencyListBackedGraph { vertices: vertices }
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^ help: replace it with: `vertices`
[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/graph.rs:131:32
[INFO] [stderr]     |
[INFO] [stderr] 131 |     AdjacencyListBackedGraph { vertices: vertices }
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^^ help: replace it with: `vertices`
[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: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/graph.rs:49:33
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let output: Vec<Edge> = all_outgoing.iter().filter(|e| !visited.contains(&e.0)).map(|e| e.clone()).collect();
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `all_outgoing.iter().filter(|e| !visited.contains(&e.0)).cloned()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/graph.rs:49:97
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let output: Vec<Edge> = all_outgoing.iter().filter(|e| !visited.contains(&e.0)).map(|e| e.clone()).collect();
[INFO] [stderr]    |                                                                                                 ^^^^^^^^^ help: try dereferencing it: `*e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/graph.rs:64:42
[INFO] [stderr]    |
[INFO] [stderr] 64 |     self.edges.iter().map(|e| e.weight()).fold(0, |sum, weight| sum + weight)
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]    --> src/graph.rs:126:7
[INFO] [stderr]     |
[INFO] [stderr] 126 | /       if !vertices.contains_key(&je.from()) {
[INFO] [stderr] 127 | |         vertices.insert(je.from(), Vec::new());
[INFO] [stderr] 128 | |       }
[INFO] [stderr]     | |_______^ help: consider using: `vertices.entry(je.from()).or_insert(Vec::new())`
[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 are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/graph.rs:49:33
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let output: Vec<Edge> = all_outgoing.iter().filter(|e| !visited.contains(&e.0)).map(|e| e.clone()).collect();
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider calling the dedicated `cloned` method: `all_outgoing.iter().filter(|e| !visited.contains(&e.0)).cloned()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/graph.rs:49:97
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let output: Vec<Edge> = all_outgoing.iter().filter(|e| !visited.contains(&e.0)).map(|e| e.clone()).collect();
[INFO] [stderr]    |                                                                                                 ^^^^^^^^^ help: try dereferencing it: `*e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: this `.fold` can be written more succinctly using another method
[INFO] [stderr]   --> src/graph.rs:64:42
[INFO] [stderr]    |
[INFO] [stderr] 64 |     self.edges.iter().map(|e| e.weight()).fold(0, |sum, weight| sum + weight)
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.sum()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_fold)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]    --> src/graph.rs:126:7
[INFO] [stderr]     |
[INFO] [stderr] 126 | /       if !vertices.contains_key(&je.from()) {
[INFO] [stderr] 127 | |         vertices.insert(je.from(), Vec::new());
[INFO] [stderr] 128 | |       }
[INFO] [stderr]     | |_______^ help: consider using: `vertices.entry(je.from()).or_insert(Vec::new())`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 18.85s
[INFO] running `"docker" "inspect" "a33e6c8f80b30f05fe575c8f22f0f0a4d396278d50da73f719dfebbfb682ebcd"`
[INFO] running `"docker" "rm" "-f" "a33e6c8f80b30f05fe575c8f22f0f0a4d396278d50da73f719dfebbfb682ebcd"`
[INFO] [stdout] a33e6c8f80b30f05fe575c8f22f0f0a4d396278d50da73f719dfebbfb682ebcd