[INFO] updating cached repository statianzo/imposters
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/statianzo/imposters
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/statianzo/imposters" "work/ex/clippy-test-run/sources/stable/gh/statianzo/imposters"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/statianzo/imposters'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/statianzo/imposters" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/statianzo/imposters"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/statianzo/imposters'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 344a5027ba57464a424c1906376445b6e208cb57
[INFO] sha for GitHub repo statianzo/imposters: 344a5027ba57464a424c1906376445b6e208cb57
[INFO] validating manifest of statianzo/imposters 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 statianzo/imposters 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 statianzo/imposters
[INFO] finished frobbing statianzo/imposters
[INFO] frobbed toml for statianzo/imposters written to work/ex/clippy-test-run/sources/stable/gh/statianzo/imposters/Cargo.toml
[INFO] started frobbing statianzo/imposters
[INFO] finished frobbing statianzo/imposters
[INFO] frobbed toml for statianzo/imposters written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/statianzo/imposters/Cargo.toml
[INFO] crate statianzo/imposters 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 statianzo/imposters 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-3/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/statianzo/imposters:/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] d12e1f7824a3059b738bc6954a3e82b005d1975e89fd35edce61d1eed1b76279
[INFO] running `"docker" "start" "-a" "d12e1f7824a3059b738bc6954a3e82b005d1975e89fd35edce61d1eed1b76279"`
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking imposters v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking rand v0.5.3
[INFO] [stderr]     Checking aho-corasick v0.6.5
[INFO] [stderr] error[E0602]: unknown lint: `clippy::into_iter_on_array`
[INFO] [stderr]   |
[INFO] [stderr]   = note: requested on the command line with `-D clippy::into_iter_on_array`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0602`.
[INFO] [stderr] error: Could not compile `regex`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/ch04_machinery/turing.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     return tape;
[INFO] [stderr]    |     ^^^^^^^^^^^^ help: remove `return` as shown: `tape`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/ch05_bigo/search.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     return false;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `arr`.
[INFO] [stderr]  --> src/ch05_bigo/search.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 |     for i in 0..arr.len() {
[INFO] [stderr]   |              ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]   |
[INFO] [stderr] 5 |     for <item> in &arr {
[INFO] [stderr]   |         ^^^^^^    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `ch06_datastructures::graph::Graph<'a>`
[INFO] [stderr]   --> src/ch06_datastructures/graph.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | /     pub fn new() -> Self {
[INFO] [stderr] 11 | |         Graph { edges: vec![] }
[INFO] [stderr] 12 | |     }
[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] 5  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: item `ch06_datastructures::heap::Heap<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/ch06_datastructures/heap.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / impl<T: PartialOrd> Heap<T> {
[INFO] [stderr] 13 | |     pub fn new() -> Self {
[INFO] [stderr] 14 | |         Heap {
[INFO] [stderr] 15 | |             elements: Vec::new(),
[INFO] [stderr] ...  |
[INFO] [stderr] 63 | |     }
[INFO] [stderr] 64 | | }
[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: you should consider deriving a `Default` implementation for `ch06_datastructures::heap::Heap<T>`
[INFO] [stderr]   --> src/ch06_datastructures/heap.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     pub fn new() -> Self {
[INFO] [stderr] 14 | |         Heap {
[INFO] [stderr] 15 | |             elements: Vec::new(),
[INFO] [stderr] 16 | |         }
[INFO] [stderr] 17 | |     }
[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] 4  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `ch06_datastructures::linked_im::LinkedList<T>`
[INFO] [stderr]   --> src/ch06_datastructures/linked_im.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /     pub fn new() -> LinkedList<T> {
[INFO] [stderr] 17 | |         LinkedList { head: Option::None }
[INFO] [stderr] 18 | |     }
[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] 11 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: item `ch06_datastructures::queue::Queue<T>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/ch06_datastructures/queue.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / impl<T> Queue<T> {
[INFO] [stderr] 17 | |     pub fn new() -> Self {
[INFO] [stderr] 18 | |         Queue {
[INFO] [stderr] 19 | |             length: 0,
[INFO] [stderr] ...  |
[INFO] [stderr] 61 | |     }
[INFO] [stderr] 62 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[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: you should consider adding a `Default` implementation for `ch06_datastructures::queue::Queue<T>`
[INFO] [stderr]   --> src/ch06_datastructures/queue.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | /     pub fn new() -> Self {
[INFO] [stderr] 18 | |         Queue {
[INFO] [stderr] 19 | |             length: 0,
[INFO] [stderr] 20 | |             front: Option::None,
[INFO] [stderr] 21 | |             rear: ptr::null_mut(),
[INFO] [stderr] 22 | |         }
[INFO] [stderr] 23 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::new_without_default)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 16 | impl Default for ch06_datastructures::queue::Queue<T> {
[INFO] [stderr] 17 |     fn default() -> Self {
[INFO] [stderr] 18 |         Self::new()
[INFO] [stderr] 19 |     }
[INFO] [stderr] 20 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/ch06_datastructures/queue.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         self.length = self.length + 1;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.length += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `ch10_patterns::builder::StringBuilder<'a>`
[INFO] [stderr]   --> src/ch10_patterns/builder.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | /     pub fn new() -> Self {
[INFO] [stderr] 12 | |         StringBuilder { segments: vec![] }
[INFO] [stderr] 13 | |     }
[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] 6  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `ch10_patterns::factory::Customer`
[INFO] [stderr]   --> src/ch10_patterns/factory.rs:9:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | /     pub fn new() -> Self {
[INFO] [stderr] 10 | |         Customer {
[INFO] [stderr] 11 | |             name: String::new(),
[INFO] [stderr] 12 | |         }
[INFO] [stderr] 13 | |     }
[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] 4  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d12e1f7824a3059b738bc6954a3e82b005d1975e89fd35edce61d1eed1b76279"`
[INFO] running `"docker" "rm" "-f" "d12e1f7824a3059b738bc6954a3e82b005d1975e89fd35edce61d1eed1b76279"`
[INFO] [stdout] d12e1f7824a3059b738bc6954a3e82b005d1975e89fd35edce61d1eed1b76279