[INFO] crate lgl 0.1.1 is already in cache
[INFO] extracting crate lgl 0.1.1 into work/ex/clippy-test-run/sources/stable/reg/lgl/0.1.1
[INFO] extracting crate lgl 0.1.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lgl/0.1.1
[INFO] validating manifest of lgl-0.1.1 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 lgl-0.1.1 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 lgl-0.1.1
[INFO] finished frobbing lgl-0.1.1
[INFO] frobbed toml for lgl-0.1.1 written to work/ex/clippy-test-run/sources/stable/reg/lgl/0.1.1/Cargo.toml
[INFO] started frobbing lgl-0.1.1
[INFO] finished frobbing lgl-0.1.1
[INFO] frobbed toml for lgl-0.1.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lgl/0.1.1/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 lgl-0.1.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/lgl/0.1.1:/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] 4787cd0804e5f1fd9638831c2aee9f6e4776e07755f4127d62bd7650169fa297
[INFO] running `"docker" "start" "-a" "4787cd0804e5f1fd9638831c2aee9f6e4776e07755f4127d62bd7650169fa297"`
[INFO] [stderr]     Checking lgl v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/graph.rs:34:44
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn add_vertex(&mut self, v: &'a T) -> () {
[INFO] [stderr]    |                                            ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]   --> src/graph.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         ()
[INFO] [stderr]    |         ^^ help: remove the final `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/graph.rs:68:52
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn add_edge(&mut self, v: &'a T, u: &'a T) -> () {
[INFO] [stderr]    |                                                    ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]   --> src/graph.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         ()
[INFO] [stderr]    |         ^^ help: remove the final `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `graph::DirectedGraph<'a, T>`
[INFO] [stderr]   --> src/graph.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     pub fn new() -> DirectedGraph<'a, T> {
[INFO] [stderr] 23 | |         DirectedGraph {
[INFO] [stderr] 24 | |             graph: HashMap::new(),
[INFO] [stderr] 25 | |             v2i: HashMap::new(),
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |         }
[INFO] [stderr] 29 | |     }
[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: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:72:47
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let neighbors = self.graph.entry(vid).or_insert(HashSet::new());
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::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: methods called `is_*` usually take self by reference or no self; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/graph.rs:78:20
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn is_edge(&mut self, v: &'a T, u: &'a T) -> bool {
[INFO] [stderr]    |                    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:82:47
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let neighbors = self.graph.entry(vid).or_insert(HashSet::new());
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[INFO] [stderr]    |
[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: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:92:50
[INFO] [stderr]    |
[INFO] [stderr] 92 |             let neighbors = self.graph.entry(id).or_insert(HashSet::new());
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[INFO] [stderr]    |
[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: unneeded unit return type
[INFO] [stderr]   --> src/graph.rs:34:44
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn add_vertex(&mut self, v: &'a T) -> () {
[INFO] [stderr]    |                                            ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unused_unit)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]   --> src/graph.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         ()
[INFO] [stderr]    |         ^^ help: remove the final `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit return type
[INFO] [stderr]   --> src/graph.rs:68:52
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn add_edge(&mut self, v: &'a T, u: &'a T) -> () {
[INFO] [stderr]    |                                                    ^^^^^ help: remove the `-> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded unit expression
[INFO] [stderr]   --> src/graph.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         ()
[INFO] [stderr]    |         ^^ help: remove the final `()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `graph::DirectedGraph<'a, T>`
[INFO] [stderr]   --> src/graph.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     pub fn new() -> DirectedGraph<'a, T> {
[INFO] [stderr] 23 | |         DirectedGraph {
[INFO] [stderr] 24 | |             graph: HashMap::new(),
[INFO] [stderr] 25 | |             v2i: HashMap::new(),
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |         }
[INFO] [stderr] 29 | |     }
[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: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:72:47
[INFO] [stderr]    |
[INFO] [stderr] 72 |         let neighbors = self.graph.entry(vid).or_insert(HashSet::new());
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::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: methods called `is_*` usually take self by reference or no self; consider choosing a less ambiguous name
[INFO] [stderr]   --> src/graph.rs:78:20
[INFO] [stderr]    |
[INFO] [stderr] 78 |     pub fn is_edge(&mut self, v: &'a T, u: &'a T) -> bool {
[INFO] [stderr]    |                    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:82:47
[INFO] [stderr]    |
[INFO] [stderr] 82 |         let neighbors = self.graph.entry(vid).or_insert(HashSet::new());
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[INFO] [stderr]    |
[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: use of `or_insert` followed by a function call
[INFO] [stderr]   --> src/graph.rs:92:50
[INFO] [stderr]    |
[INFO] [stderr] 92 |             let neighbors = self.graph.entry(id).or_insert(HashSet::new());
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(HashSet::new)`
[INFO] [stderr]    |
[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 0.75s
[INFO] running `"docker" "inspect" "4787cd0804e5f1fd9638831c2aee9f6e4776e07755f4127d62bd7650169fa297"`
[INFO] running `"docker" "rm" "-f" "4787cd0804e5f1fd9638831c2aee9f6e4776e07755f4127d62bd7650169fa297"`
[INFO] [stdout] 4787cd0804e5f1fd9638831c2aee9f6e4776e07755f4127d62bd7650169fa297