[INFO] crate calendar_queue 0.0.1 is already in cache
[INFO] extracting crate calendar_queue 0.0.1 into work/ex/clippy-test-run/sources/stable/reg/calendar_queue/0.0.1
[INFO] extracting crate calendar_queue 0.0.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/calendar_queue/0.0.1
[INFO] validating manifest of calendar_queue-0.0.1 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 calendar_queue-0.0.1 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 calendar_queue-0.0.1
[INFO] finished frobbing calendar_queue-0.0.1
[INFO] frobbed toml for calendar_queue-0.0.1 written to work/ex/clippy-test-run/sources/stable/reg/calendar_queue/0.0.1/Cargo.toml
[INFO] started frobbing calendar_queue-0.0.1
[INFO] finished frobbing calendar_queue-0.0.1
[INFO] frobbed toml for calendar_queue-0.0.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/calendar_queue/0.0.1/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 calendar_queue-0.0.1 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/reg/calendar_queue/0.0.1:/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] bbb594fe0d70b48380ddb505879b2b7ca3b3580dd28e71ae098a274988ee138c
[INFO] running `"docker" "start" "-a" "bbb594fe0d70b48380ddb505879b2b7ca3b3580dd28e71ae098a274988ee138c"`
[INFO] [stderr]     Checking calendar_queue v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `calendar_queue::CalendarQueue<I, T>`
[INFO] [stderr]   --> src/calendar_queue.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     pub fn new() -> Self {
[INFO] [stderr] 23 | |         CalendarQueue {
[INFO] [stderr] 24 | |             sorter: VecDeque::new(),
[INFO] [stderr] 25 | |             flows: 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] 8  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/calendar_queue.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 | /         if self.flows.contains_key(&id) {
[INFO] [stderr] 52 | |             Err(Error::DuplicateFlowId)
[INFO] [stderr] 53 | |         } else {
[INFO] [stderr] 54 | |             let (sender, receiver) = channel();
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |             Ok(sender)
[INFO] [stderr] 60 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.flows.entry(id)`
[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: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/calendar_queue.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 | /         if self.flows.contains_key(&id) {
[INFO] [stderr] 52 | |             Err(Error::DuplicateFlowId)
[INFO] [stderr] 53 | |         } else {
[INFO] [stderr] 54 | |             let (sender, receiver) = channel();
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |             Ok(sender)
[INFO] [stderr] 60 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.flows.entry(id)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/calendar_queue.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         if self.flows.contains_key(&id) {
[INFO] [stderr] 84 | |             Err(Error::DuplicateFlowId)
[INFO] [stderr] 85 | |         } else {
[INFO] [stderr] 86 | |             self.flows.insert(id, channel);
[INFO] [stderr] ...  |
[INFO] [stderr] 90 | |             Ok(())
[INFO] [stderr] 91 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.flows.entry(id)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a VecDeque. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calendar_queue.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 self.sorter.get_mut(index).unwrap().1.push_back(id);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.sorter[index]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/calendar_queue.rs:168:24
[INFO] [stderr]     |
[INFO] [stderr] 168 |                     if slots.len() > 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!slots.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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/calendar_queue.rs:174:37
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let next_time = self.conformance_times.get(&id).unwrap().clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.conformance_times.get(&id).unwrap()`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calendar_queue.rs:174:37
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let next_time = self.conformance_times.get(&id).unwrap().clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&self.conformance_times[&id]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `calendar_queue::CalendarQueue<I, T>`
[INFO] [stderr]   --> src/calendar_queue.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     pub fn new() -> Self {
[INFO] [stderr] 23 | |         CalendarQueue {
[INFO] [stderr] 24 | |             sorter: VecDeque::new(),
[INFO] [stderr] 25 | |             flows: 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] 8  | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/calendar_queue.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 | /         if self.flows.contains_key(&id) {
[INFO] [stderr] 52 | |             Err(Error::DuplicateFlowId)
[INFO] [stderr] 53 | |         } else {
[INFO] [stderr] 54 | |             let (sender, receiver) = channel();
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |             Ok(sender)
[INFO] [stderr] 60 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.flows.entry(id)`
[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: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/calendar_queue.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 | /         if self.flows.contains_key(&id) {
[INFO] [stderr] 52 | |             Err(Error::DuplicateFlowId)
[INFO] [stderr] 53 | |         } else {
[INFO] [stderr] 54 | |             let (sender, receiver) = channel();
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |             Ok(sender)
[INFO] [stderr] 60 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.flows.entry(id)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/calendar_queue.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 | /         if self.flows.contains_key(&id) {
[INFO] [stderr] 84 | |             Err(Error::DuplicateFlowId)
[INFO] [stderr] 85 | |         } else {
[INFO] [stderr] 86 | |             self.flows.insert(id, channel);
[INFO] [stderr] ...  |
[INFO] [stderr] 90 | |             Ok(())
[INFO] [stderr] 91 | |         }
[INFO] [stderr]    | |_________^ help: consider using: `self.flows.entry(id)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get_mut().unwrap()` on a VecDeque. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calendar_queue.rs:124:17
[INFO] [stderr]     |
[INFO] [stderr] 124 |                 self.sorter.get_mut(index).unwrap().1.push_back(id);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `self.sorter[index]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/calendar_queue.rs:168:24
[INFO] [stderr]     |
[INFO] [stderr] 168 |                     if slots.len() > 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!slots.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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/calendar_queue.rs:174:37
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let next_time = self.conformance_times.get(&id).unwrap().clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.conformance_times.get(&id).unwrap()`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/calendar_queue.rs:174:37
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let next_time = self.conformance_times.get(&id).unwrap().clone();
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&self.conformance_times[&id]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `calendar_queue`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "bbb594fe0d70b48380ddb505879b2b7ca3b3580dd28e71ae098a274988ee138c"`
[INFO] running `"docker" "rm" "-f" "bbb594fe0d70b48380ddb505879b2b7ca3b3580dd28e71ae098a274988ee138c"`
[INFO] [stdout] bbb594fe0d70b48380ddb505879b2b7ca3b3580dd28e71ae098a274988ee138c