[INFO] updating cached repository ZhouHansen/async_rust_playground
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ZhouHansen/async_rust_playground
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ZhouHansen/async_rust_playground" "work/ex/clippy-test-run/sources/stable/gh/ZhouHansen/async_rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ZhouHansen/async_rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ZhouHansen/async_rust_playground" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ZhouHansen/async_rust_playground"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ZhouHansen/async_rust_playground'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 35a57a71145390d68ca6d19ee16905543662d726
[INFO] sha for GitHub repo ZhouHansen/async_rust_playground: 35a57a71145390d68ca6d19ee16905543662d726
[INFO] validating manifest of ZhouHansen/async_rust_playground 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 ZhouHansen/async_rust_playground 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 ZhouHansen/async_rust_playground
[INFO] finished frobbing ZhouHansen/async_rust_playground
[INFO] frobbed toml for ZhouHansen/async_rust_playground written to work/ex/clippy-test-run/sources/stable/gh/ZhouHansen/async_rust_playground/Cargo.toml
[INFO] started frobbing ZhouHansen/async_rust_playground
[INFO] finished frobbing ZhouHansen/async_rust_playground
[INFO] frobbed toml for ZhouHansen/async_rust_playground written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ZhouHansen/async_rust_playground/Cargo.toml
[INFO] crate ZhouHansen/async_rust_playground 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 ZhouHansen/async_rust_playground against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/ZhouHansen/async_rust_playground:/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] 1b895209a881de2b55303f4fe4d59fc22fe2494f6032656e937af3fd417a8cc2
[INFO] running `"docker" "start" "-a" "1b895209a881de2b55303f4fe4d59fc22fe2494f6032656e937af3fd417a8cc2"`
[INFO] [stderr]     Checking async_rust_playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/event_loop.rs:35:41
[INFO] [stderr]    |
[INFO] [stderr] 35 |         self.tx.send(Registration { at, wake: wake }).unwrap();
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: replace it with: `wake`
[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/event_loop.rs:35:41
[INFO] [stderr]    |
[INFO] [stderr] 35 |         self.tx.send(Registration { at, wake: wake }).unwrap();
[INFO] [stderr]    |                                         ^^^^^^^^^^ help: replace it with: `wake`
[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: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/task_exc.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |         id: wake.id.clone(),           
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `wake.id`
[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: you should consider adding a `Default` implementation for `task_exc::ToyExec`
[INFO] [stderr]   --> src/task_exc.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 | /     pub fn new() -> Self {
[INFO] [stderr] 79 | |         ToyExec {
[INFO] [stderr] 80 | |             state: Arc::new(Mutex::new(ExecState {
[INFO] [stderr] 81 | |                 next_id: 0,
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |         }
[INFO] [stderr] 87 | |     }
[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] 77 | impl Default for task_exc::ToyExec {
[INFO] [stderr] 78 |     fn default() -> Self {
[INFO] [stderr] 79 |         Self::new()
[INFO] [stderr] 80 |     }
[INFO] [stderr] 81 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/task_exc.rs:143:24
[INFO] [stderr]     |
[INFO] [stderr] 143 |                     if self.state_mut().tasks.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.state_mut().tasks.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `event_loop::ToyTimer`
[INFO] [stderr]   --> src/event_loop.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | /     pub fn new() -> ToyTimer {
[INFO] [stderr] 27 | |         let (tx, rx) = mpsc::channel();
[INFO] [stderr] 28 | |         let worker = Worker { rx, active: BTreeMap::new() };
[INFO] [stderr] 29 | |         thread::spawn(|| worker.work());
[INFO] [stderr] 30 | |         ToyTimer { tx }
[INFO] [stderr] 31 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[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] 25 | impl Default for event_loop::ToyTimer {
[INFO] [stderr] 26 |     fn default() -> Self {
[INFO] [stderr] 27 |         Self::new()
[INFO] [stderr] 28 |     }
[INFO] [stderr] 29 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `BTreeMap`
[INFO] [stderr]   --> src/event_loop.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 | /     if active.contains_key(&property) {
[INFO] [stderr] 78 | |         if let Some(x) = active.get_mut(&property) {
[INFO] [stderr] 79 | |             (*x).push(new_value);
[INFO] [stderr] 80 | |         } 
[INFO] [stderr] 81 | |     } else {
[INFO] [stderr] 82 | |         active.insert(property, vec![new_value]);
[INFO] [stderr] 83 | |     }
[INFO] [stderr]    | |_____^ help: consider using: `active.entry(property)`
[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: using `clone` on a `Copy` type
[INFO] [stderr]   --> src/task_exc.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |         id: wake.id.clone(),           
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ help: try removing the `clone` call: `wake.id`
[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: you should consider adding a `Default` implementation for `task_exc::ToyExec`
[INFO] [stderr]   --> src/task_exc.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 | /     pub fn new() -> Self {
[INFO] [stderr] 79 | |         ToyExec {
[INFO] [stderr] 80 | |             state: Arc::new(Mutex::new(ExecState {
[INFO] [stderr] 81 | |                 next_id: 0,
[INFO] [stderr] ...  |
[INFO] [stderr] 86 | |         }
[INFO] [stderr] 87 | |     }
[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] 77 | impl Default for task_exc::ToyExec {
[INFO] [stderr] 78 |     fn default() -> Self {
[INFO] [stderr] 79 |         Self::new()
[INFO] [stderr] 80 |     }
[INFO] [stderr] 81 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/task_exc.rs:143:24
[INFO] [stderr]     |
[INFO] [stderr] 143 |                     if self.state_mut().tasks.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.state_mut().tasks.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `event_loop::ToyTimer`
[INFO] [stderr]   --> src/event_loop.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 | /     pub fn new() -> ToyTimer {
[INFO] [stderr] 27 | |         let (tx, rx) = mpsc::channel();
[INFO] [stderr] 28 | |         let worker = Worker { rx, active: BTreeMap::new() };
[INFO] [stderr] 29 | |         thread::spawn(|| worker.work());
[INFO] [stderr] 30 | |         ToyTimer { tx }
[INFO] [stderr] 31 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[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] 25 | impl Default for event_loop::ToyTimer {
[INFO] [stderr] 26 |     fn default() -> Self {
[INFO] [stderr] 27 |         Self::new()
[INFO] [stderr] 28 |     }
[INFO] [stderr] 29 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `BTreeMap`
[INFO] [stderr]   --> src/event_loop.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 | /     if active.contains_key(&property) {
[INFO] [stderr] 78 | |         if let Some(x) = active.get_mut(&property) {
[INFO] [stderr] 79 | |             (*x).push(new_value);
[INFO] [stderr] 80 | |         } 
[INFO] [stderr] 81 | |     } else {
[INFO] [stderr] 82 | |         active.insert(property, vec![new_value]);
[INFO] [stderr] 83 | |     }
[INFO] [stderr]    | |_____^ help: consider using: `active.entry(property)`
[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 1.06s
[INFO] running `"docker" "inspect" "1b895209a881de2b55303f4fe4d59fc22fe2494f6032656e937af3fd417a8cc2"`
[INFO] running `"docker" "rm" "-f" "1b895209a881de2b55303f4fe4d59fc22fe2494f6032656e937af3fd417a8cc2"`
[INFO] [stdout] 1b895209a881de2b55303f4fe4d59fc22fe2494f6032656e937af3fd417a8cc2