[INFO] crate xdlol 0.0.0 is already in cache
[INFO] extracting crate xdlol 0.0.0 into work/ex/clippy-test-run/sources/stable/reg/xdlol/0.0.0
[INFO] extracting crate xdlol 0.0.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/xdlol/0.0.0
[INFO] validating manifest of xdlol-0.0.0 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 xdlol-0.0.0 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 xdlol-0.0.0
[INFO] finished frobbing xdlol-0.0.0
[INFO] frobbed toml for xdlol-0.0.0 written to work/ex/clippy-test-run/sources/stable/reg/xdlol/0.0.0/Cargo.toml
[INFO] started frobbing xdlol-0.0.0
[INFO] finished frobbing xdlol-0.0.0
[INFO] frobbed toml for xdlol-0.0.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/xdlol/0.0.0/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 xdlol-0.0.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/xdlol/0.0.0:/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] 1f4e46f9f9d897aafce0ca44c80a587f3351820f8c62ca1e1037fe7c11154906
[INFO] running `"docker" "start" "-a" "1f4e46f9f9d897aafce0ca44c80a587f3351820f8c62ca1e1037fe7c11154906"`
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking statrs v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking xdlol v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/statistics/mod.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         println!("");
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/statistics/mod.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         println!("");
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `p_value`
[INFO] [stderr]    --> src/statistics/chi_square.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub fn p_value(dof: u64, critical_value: f64) -> f64 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `statistics::frequency::FrequencyMap<K, V>`
[INFO] [stderr]   --> src/statistics/frequency.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | /     pub fn new() -> Self {
[INFO] [stderr] 42 | |         FrequencyMap {
[INFO] [stderr] 43 | |             default: Zero::zero(),
[INFO] [stderr] 44 | |             freq_map: HashMap::new(),
[INFO] [stderr] 45 | |         }
[INFO] [stderr] 46 | |     }
[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] 24 | impl Default for statistics::frequency::FrequencyMap<K, V> {
[INFO] [stderr] 25 |     fn default() -> Self {
[INFO] [stderr] 26 |         Self::new()
[INFO] [stderr] 27 |     }
[INFO] [stderr] 28 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/statistics/frequency.rs:111:33
[INFO] [stderr]     |
[INFO] [stderr] 111 |         *self.freq_map.entry(k).or_insert(Zero::zero()) += One::one();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Zero::zero)`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/statistics/frequency.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         self.get(&k).clone()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.get(&k)`
[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: variable `K` should have a snake case name such as `k`
[INFO] [stderr]    --> src/statistics/chi_square.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let K: f64 = dof as f64 * 0.5;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name such as `x`
[INFO] [stderr]    --> src/statistics/chi_square.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let X: f64 = critical_value * 0.5;
[INFO] [stderr]     |         ^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/statistics/mod.rs:41:43
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let bar_width: u64 = (item_norm * width as f64) as u64;
[INFO] [stderr]    |                                           ^^^^^^^^^^^^ help: try: `f64::from(width)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/statistics/chi_square.rs:180:24
[INFO] [stderr]     |
[INFO] [stderr] 180 |         let expected = 0.0636423441307552;
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^ help: consider: `0.063_642_344_130_755_2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/statistics/chi_square.rs:181:36
[INFO] [stderr]     |
[INFO] [stderr] 181 |         let p_value = p_value(255, 290.285192);
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: consider: `290.285_192`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/statistics/chi_square.rs:206:31
[INFO] [stderr]     |
[INFO] [stderr] 206 |         let expected_pvalue = 0.57240670447087982;
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^ help: consider: `0.572_406_704_470_879_82`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider adding a `Default` implementation for `statistics::frequency::FrequencyMap<K, V>`
[INFO] [stderr]   --> src/statistics/frequency.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | /     pub fn new() -> Self {
[INFO] [stderr] 42 | |         FrequencyMap {
[INFO] [stderr] 43 | |             default: Zero::zero(),
[INFO] [stderr] 44 | |             freq_map: HashMap::new(),
[INFO] [stderr] 45 | |         }
[INFO] [stderr] 46 | |     }
[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] 24 | impl Default for statistics::frequency::FrequencyMap<K, V> {
[INFO] [stderr] 25 |     fn default() -> Self {
[INFO] [stderr] 26 |         Self::new()
[INFO] [stderr] 27 |     }
[INFO] [stderr] 28 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/statistics/frequency.rs:111:33
[INFO] [stderr]     |
[INFO] [stderr] 111 |         *self.freq_map.entry(k).or_insert(Zero::zero()) += One::one();
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(Zero::zero)`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/statistics/frequency.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         self.get(&k).clone()
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^ help: try dereferencing it: `*self.get(&k)`
[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: variable `K` should have a snake case name such as `k`
[INFO] [stderr]    --> src/statistics/chi_square.rs:116:9
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let K: f64 = dof as f64 * 0.5;
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name such as `x`
[INFO] [stderr]    --> src/statistics/chi_square.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let X: f64 = critical_value * 0.5;
[INFO] [stderr]     |         ^
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]    --> src/statistics/chi_square.rs:206:31
[INFO] [stderr]     |
[INFO] [stderr] 206 |         let expected_pvalue = 0.57240670447087982;
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `0.572_406_704_470_879_8`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::excessive_precision)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#excessive_precision
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to f64 may become silently lossy if types change
[INFO] [stderr]   --> src/statistics/mod.rs:41:43
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let bar_width: u64 = (item_norm * width as f64) as u64;
[INFO] [stderr]    |                                           ^^^^^^^^^^^^ help: try: `f64::from(width)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> benches/frequency_map.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![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 `xdlol`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1f4e46f9f9d897aafce0ca44c80a587f3351820f8c62ca1e1037fe7c11154906"`
[INFO] running `"docker" "rm" "-f" "1f4e46f9f9d897aafce0ca44c80a587f3351820f8c62ca1e1037fe7c11154906"`
[INFO] [stdout] 1f4e46f9f9d897aafce0ca44c80a587f3351820f8c62ca1e1037fe7c11154906