[INFO] updating cached repository mratsim/rustygo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mratsim/rustygo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mratsim/rustygo" "work/ex/clippy-test-run/sources/stable/gh/mratsim/rustygo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/mratsim/rustygo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mratsim/rustygo" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mratsim/rustygo"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mratsim/rustygo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e854f826c2cb2062b78de769f203cc072df38dd9
[INFO] sha for GitHub repo mratsim/rustygo: e854f826c2cb2062b78de769f203cc072df38dd9
[INFO] validating manifest of mratsim/rustygo 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 mratsim/rustygo 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 mratsim/rustygo
[INFO] finished frobbing mratsim/rustygo
[INFO] frobbed toml for mratsim/rustygo written to work/ex/clippy-test-run/sources/stable/gh/mratsim/rustygo/Cargo.toml
[INFO] started frobbing mratsim/rustygo
[INFO] finished frobbing mratsim/rustygo
[INFO] frobbed toml for mratsim/rustygo written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mratsim/rustygo/Cargo.toml
[INFO] crate mratsim/rustygo 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 mratsim/rustygo 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/gh/mratsim/rustygo:/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] 4d7cc257fc0c932c8f8d823f3962e439a21155b10486a533520533d96d375e46
[INFO] running `"docker" "start" "-a" "4d7cc257fc0c932c8f8d823f3962e439a21155b10486a533520533d96d375e46"`
[INFO] [stderr]     Checking winapi v0.2.5
[INFO] [stderr]     Checking libc v0.2.4
[INFO] [stderr]     Checking itertools v0.4.6
[INFO] [stderr]     Checking fnv v1.0.2
[INFO] [stderr]     Checking advapi32-sys v0.1.2
[INFO] [stderr]     Checking rand v0.3.12
[INFO] [stderr]     Checking rusty_go v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 | const UCT_EXPLO_BIAS: f32 = 1.4142135623730951; //sqrt(2)
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: consider: `1.414_213_562_373_095_1`
[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/main.rs:95:33
[INFO] [stderr]    |
[INFO] [stderr] 95 |         XorShiftPlusRng { s: [w(0x193a6754a8a7d469), w(0x97830e05113ba7bb)] }
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider: `0x193a_6754_a8a7_d469`
[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/main.rs:95:56
[INFO] [stderr]    |
[INFO] [stderr] 95 |         XorShiftPlusRng { s: [w(0x193a6754a8a7d469), w(0x97830e05113ba7bb)] }
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^ help: consider: `0x9783_0e05_113b_a7bb`
[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: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/main.rs:370:17
[INFO] [stderr]     |
[INFO] [stderr] 370 |                                             _ if (|| valid.iter().any(|x| *x == *idx))() => None, //https://www.reddit.com/r/rust/comments/2ztiag/cannot_mutably_borrow_in_a_pattern_guard/
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Try doing something like: : `valid.iter().any(|x| *x == *idx)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 | const UCT_EXPLO_BIAS: f32 = 1.4142135623730951; //sqrt(2)
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: consider: `1.414_213_562_373_095_1`
[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/main.rs:95:33
[INFO] [stderr]    |
[INFO] [stderr] 95 |         XorShiftPlusRng { s: [w(0x193a6754a8a7d469), w(0x97830e05113ba7bb)] }
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^ help: consider: `0x193a_6754_a8a7_d469`
[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/main.rs:95:56
[INFO] [stderr]    |
[INFO] [stderr] 95 |         XorShiftPlusRng { s: [w(0x193a6754a8a7d469), w(0x97830e05113ba7bb)] }
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^ help: consider: `0x9783_0e05_113b_a7bb`
[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: Try not to call a closure in the expression where it is declared.
[INFO] [stderr]    --> src/main.rs:370:17
[INFO] [stderr]     |
[INFO] [stderr] 370 |                                             _ if (|| valid.iter().any(|x| *x == *idx))() => None, //https://www.reddit.com/r/rust/comments/2ztiag/cannot_mutably_borrow_in_a_pattern_guard/
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Try doing something like: : `valid.iter().any(|x| *x == *idx)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_call
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]   --> src/main.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::io::{stdin, BufRead};
[INFO] [stderr]    |                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:659:13
[INFO] [stderr]     |
[INFO] [stderr] 659 |         let mut tree = MCTS_tree {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCORE_TO_BEAT`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | const SCORE_TO_BEAT: i16 = 361; //Number of Intersections (used for half-step counting)
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/main.rs:525:5
[INFO] [stderr]     |
[INFO] [stderr] 525 |     fn new() -> MCTS_tree{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/main.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 | const UCT_EXPLO_BIAS: f32 = 1.4142135623730951; //sqrt(2)
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `1.414_213_5`
[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] error: approximate value of `f{32, 64}::consts::SQRT_2` found. Consider using it directly
[INFO] [stderr]   --> src/main.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 | const UCT_EXPLO_BIAS: f32 = 1.4142135623730951; //sqrt(2)
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:235:30
[INFO] [stderr]     |
[INFO] [stderr] 235 |         let mut scoreboard = self.clone();
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: try dereferencing it: `*self`
[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 are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:241:33
[INFO] [stderr]     |
[INFO] [stderr] 241 | /                                 scoreboard.neighbors(x)
[INFO] [stderr] 242 | |                                 .iter()
[INFO] [stderr] 243 | |                                 .map(|&y| y)
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 241 |                                 scoreboard.neighbors(x)
[INFO] [stderr] 242 |                                 .iter().cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:250:33
[INFO] [stderr]     |
[INFO] [stderr] 250 | /                                 scoreboard.neighbors(x)
[INFO] [stderr] 251 | |                                 .iter()
[INFO] [stderr] 252 | |                                 .map(|&y| y)
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 250 |                                 scoreboard.neighbors(x)
[INFO] [stderr] 251 |                                 .iter().cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:285:40
[INFO] [stderr]     |
[INFO] [stderr] 285 |         match PartialOrd::partial_cmp(&(black_score as f32),&(KOMI + (white_score as f32))) {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(black_score)`
[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: casting u16 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:285:70
[INFO] [stderr]     |
[INFO] [stderr] 285 |         match PartialOrd::partial_cmp(&(black_score as f32),&(KOMI + (white_score as f32))) {
[INFO] [stderr]     |                                                                      ^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(white_score)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `b`
[INFO] [stderr]    --> src/main.rs:306:18
[INFO] [stderr]     |
[INFO] [stderr] 306 |         for i in 0..21 * 21 {
[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] 306 |         for (i, <item>) in b.iter_mut().enumerate().take(21 * 21) {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:322:5
[INFO] [stderr]     |
[INFO] [stderr] 322 | /     fn index<'a>(&'a self, idx: usize) -> &'a Intersection {
[INFO] [stderr] 323 | |         &self.board[idx]
[INFO] [stderr] 324 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:329:5
[INFO] [stderr]     |
[INFO] [stderr] 329 | /     fn index_mut<'a>(&'a mut self, idx: usize) -> &'a mut Intersection {
[INFO] [stderr] 330 | |         self.board.index_mut(idx)
[INFO] [stderr] 331 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] error: use of `#[inline]` on trait method `neighbors` which has no body
[INFO] [stderr]    --> src/main.rs:358:5
[INFO] [stderr]     |
[INFO] [stderr] 358 |       #[inline]
[INFO] [stderr]     |  _____-^^^^^^^^
[INFO] [stderr] 359 | |     fn neighbors(&self, pos: u16) -> [u16; 4];
[INFO] [stderr]     | |____- help: remove
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::inline_fn_without_body)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inline_fn_without_body
[INFO] [stderr] 
[INFO] [stderr] warning: this `.filter_map` can be written more simply using `.filter`
[INFO] [stderr]    --> src/main.rs:368:6
[INFO] [stderr]     |
[INFO] [stderr] 368 |                       self.neighbors(candidate).iter()
[INFO] [stderr]     |  _____________________^
[INFO] [stderr] 369 | |                         .filter_map(|idx| match idx {
[INFO] [stderr] 370 | |                                             _ if (|| valid.iter().any(|x| *x == *idx))() => None, //https://www.reddit.com/r/rust/comments/2ztiag/cannot_mutably_borrow_in_a_pattern_guard/
[INFO] [stderr] 371 | |                                             _ if self.index(*idx as usize)==color => Some(idx),
[INFO] [stderr] 372 | |                                             _ => None,
[INFO] [stderr] 373 | |                                             })
[INFO] [stderr]     | |______________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_filter_map)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_filter_map
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 | /                 self.neighbors(x)
[INFO] [stderr] 385 | |                     .iter()
[INFO] [stderr] 386 | |                     .map(|&y| y)
[INFO] [stderr]     | |________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 384 |                 self.neighbors(x)
[INFO] [stderr] 385 |                     .iter().cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:393:5
[INFO] [stderr]     |
[INFO] [stderr] 393 |     fn capture<'a>(&'a mut self, pos: u16) -> &'a mut Self;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 | /     fn capture<'a>(&'a mut self, pos: u16) -> &'a mut Board19 {
[INFO] [stderr] 402 | |         for i in self.group(pos) {
[INFO] [stderr] 403 | |             self[i as usize] = Intersection::Empty;
[INFO] [stderr] 404 | |         }
[INFO] [stderr] 405 | |         self
[INFO] [stderr] 406 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:412:21
[INFO] [stderr]     |
[INFO] [stderr] 412 |     let boardsize = 0..s + 1 + 1;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: use: `0..=s + 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:457:5
[INFO] [stderr]     |
[INFO] [stderr] 457 |     fn moveplayer<'a>(&'a mut self, pos: usize) -> bool;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:458:5
[INFO] [stderr]     |
[INFO] [stderr] 458 |     fn movecore<'a>(&'a mut self, coord: usize);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:482:5
[INFO] [stderr]     |
[INFO] [stderr] 482 | /     fn movecore<'a>(&'a mut self, coord: usize){
[INFO] [stderr] 483 | |         let mut c: Vec<u16> = self.neighbors(coord as u16)
[INFO] [stderr] 484 | |                                   .into_iter()
[INFO] [stderr] 485 | |                                   .filter(|&i| {
[INFO] [stderr] ...   |
[INFO] [stderr] 494 | |         }
[INFO] [stderr] 495 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:483:31
[INFO] [stderr]     |
[INFO] [stderr] 483 |           let mut c: Vec<u16> = self.neighbors(coord as u16)
[INFO] [stderr]     |  _______________________________^
[INFO] [stderr] 484 | |                                   .into_iter()
[INFO] [stderr] 485 | |                                   .filter(|&i| {
[INFO] [stderr] 486 | |                                       self[*i as usize] == self.next_player &&
[INFO] [stderr] 487 | |                                       self.pseudo_lib(*i) == 0
[INFO] [stderr] 488 | |                                   })
[INFO] [stderr] 489 | |                                   .map(|&x| x)
[INFO] [stderr]     | |______________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 483 |         let mut c: Vec<u16> = self.neighbors(coord as u16)
[INFO] [stderr] 484 |                                   .into_iter()
[INFO] [stderr] 485 |                                   .filter(|&i| {
[INFO] [stderr] 486 |                                       self[*i as usize] == self.next_player &&
[INFO] [stderr] 487 |                                       self.pseudo_lib(*i) == 0
[INFO] [stderr] 488 |                                   }).cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> src/main.rs:484:36
[INFO] [stderr]     |
[INFO] [stderr] 484 |                                   .into_iter()
[INFO] [stderr]     |                                    ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:497:5
[INFO] [stderr]     |
[INFO] [stderr] 497 | /     fn moveplayer<'a>(&'a mut self, coord: usize) -> bool {
[INFO] [stderr] 498 | |         if self.is_player_move_valid(coord) {
[INFO] [stderr] 499 | |             self[coord as usize] = self.next_player;
[INFO] [stderr] 500 | |             self.next_player = self.flip_color();
[INFO] [stderr] ...   |
[INFO] [stderr] 506 | |         true
[INFO] [stderr] 507 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: type `MCTS_tree` should have a camel case name such as `MctsTree`
[INFO] [stderr]    --> src/main.rs:511:1
[INFO] [stderr]     |
[INFO] [stderr] 511 | / struct MCTS_tree{
[INFO] [stderr] 512 | |     board_state: Board19,
[INFO] [stderr] 513 | |     nx_player: Intersection,
[INFO] [stderr] 514 | |     board_hash: u16,
[INFO] [stderr] ...   |
[INFO] [stderr] 521 | |     last_move: u16,
[INFO] [stderr] 522 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:542:33
[INFO] [stderr]     |
[INFO] [stderr] 542 |     fn uct(&self, &parent_sims: &u32) -> f32 {
[INFO] [stderr]     |                                 ^^^^ help: consider passing by value instead: `u32`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` directly on a function argument is ignored. Consider using a reference type instead.
[INFO] [stderr]    --> src/main.rs:547:27
[INFO] [stderr]     |
[INFO] [stderr] 547 |     fn mcts_select(&self, ref tt: &HashMap<Zobrist,MCTS_tree>) -> MCTS_tree {
[INFO] [stderr]     |                           ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:559:28
[INFO] [stderr]     |
[INFO] [stderr] 559 |         let mut nx_board = self.board_state.clone();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.board_state`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:596:28
[INFO] [stderr]     |
[INFO] [stderr] 596 |         let mut simboard = self.board_state.clone();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.board_state`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:619:12
[INFO] [stderr]     |
[INFO] [stderr] 619 |         if self.board_state.empty_inter().len() == 0 { //TODO replace by legal move
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.board_state.empty_inter().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/main.rs:623:29
[INFO] [stderr]     |
[INFO] [stderr] 623 |         let mut tree_hash = th.clone();
[INFO] [stderr]     |                             ^^^^^^^^^^ help: try removing the `clone` call: `th`
[INFO] [stderr]     |
[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/main.rs:629:53
[INFO] [stderr]     |
[INFO] [stderr] 629 |         println!("count of potential moves:\t{:?}", tt.get(&tree_hash).unwrap().board_state.empty_inter().len());
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:630:52
[INFO] [stderr]     |
[INFO] [stderr] 630 |         println!("count of children moves:\t{:?}", tt.get(&tree_hash).unwrap().children.len());
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:632:15
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `tt.get(&tree_hash).unwrap().board_state.empty_inter().is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:632:15
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:632:83
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!tt.get(&tree_hash).unwrap().children.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:632:83
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:677:12
[INFO] [stderr]     |
[INFO] [stderr] 677 |         if tt.get(&tree_hash).unwrap().simulate()==tt.get(&tree_hash).unwrap().nx_player {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:677:52
[INFO] [stderr]     |
[INFO] [stderr] 677 |         if tt.get(&tree_hash).unwrap().simulate()==tt.get(&tree_hash).unwrap().nx_player {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:689:23
[INFO] [stderr]     |
[INFO] [stderr] 689 |           let nx_move = tt.get(&tree_hash)
[INFO] [stderr]     |  _______________________^
[INFO] [stderr] 690 | |                         .unwrap()
[INFO] [stderr]     | |_________________________________^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:692:34
[INFO] [stderr]     |
[INFO] [stderr] 692 |                         .map(|x| tt.get(x).unwrap().clone())
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^ help: try this: `&tt[x]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:697:43
[INFO] [stderr]     |
[INFO] [stderr] 697 |           println!("count children:\t{:?}", tt.get(&tree_hash)
[INFO] [stderr]     |  ___________________________________________^
[INFO] [stderr] 698 | |                         .unwrap()
[INFO] [stderr]     | |_________________________________^ help: try this: `&tt[&tree_hash]`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:727:5
[INFO] [stderr]     |
[INFO] [stderr] 727 | /     fn index<'a>(&'a self, idx: usize) -> &'a Zobrist {
[INFO] [stderr] 728 | |         &self.random_hashes[idx]
[INFO] [stderr] 729 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:793:9
[INFO] [stderr]     |
[INFO] [stderr] 793 | /         stdin()
[INFO] [stderr] 794 | |             .read_line(&mut input)
[INFO] [stderr] 795 | |             .ok()
[INFO] [stderr] 796 | |             .expect("Failed to read line.");
[INFO] [stderr]     | |___________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rusty_go`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]   --> src/main.rs:19:22
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::io::{stdin, BufRead};
[INFO] [stderr]    |                      ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:659:13
[INFO] [stderr]     |
[INFO] [stderr] 659 |         let mut tree = MCTS_tree {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SCORE_TO_BEAT`
[INFO] [stderr]   --> src/main.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | const SCORE_TO_BEAT: i16 = 361; //Number of Intersections (used for half-step counting)
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/main.rs:525:5
[INFO] [stderr]     |
[INFO] [stderr] 525 |     fn new() -> MCTS_tree{
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: float has excessive precision
[INFO] [stderr]   --> src/main.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 | const UCT_EXPLO_BIAS: f32 = 1.4142135623730951; //sqrt(2)
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: consider changing the type or truncating it to: `1.414_213_5`
[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] error: approximate value of `f{32, 64}::consts::SQRT_2` found. Consider using it directly
[INFO] [stderr]   --> src/main.rs:24:29
[INFO] [stderr]    |
[INFO] [stderr] 24 | const UCT_EXPLO_BIAS: f32 = 1.4142135623730951; //sqrt(2)
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::approx_constant)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:235:30
[INFO] [stderr]     |
[INFO] [stderr] 235 |         let mut scoreboard = self.clone();
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: try dereferencing it: `*self`
[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 are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:241:33
[INFO] [stderr]     |
[INFO] [stderr] 241 | /                                 scoreboard.neighbors(x)
[INFO] [stderr] 242 | |                                 .iter()
[INFO] [stderr] 243 | |                                 .map(|&y| y)
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 241 |                                 scoreboard.neighbors(x)
[INFO] [stderr] 242 |                                 .iter().cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:250:33
[INFO] [stderr]     |
[INFO] [stderr] 250 | /                                 scoreboard.neighbors(x)
[INFO] [stderr] 251 | |                                 .iter()
[INFO] [stderr] 252 | |                                 .map(|&y| y)
[INFO] [stderr]     | |____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 250 |                                 scoreboard.neighbors(x)
[INFO] [stderr] 251 |                                 .iter().cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting u16 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:285:40
[INFO] [stderr]     |
[INFO] [stderr] 285 |         match PartialOrd::partial_cmp(&(black_score as f32),&(KOMI + (white_score as f32))) {
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(black_score)`
[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: casting u16 to f32 may become silently lossy if types change
[INFO] [stderr]    --> src/main.rs:285:70
[INFO] [stderr]     |
[INFO] [stderr] 285 |         match PartialOrd::partial_cmp(&(black_score as f32),&(KOMI + (white_score as f32))) {
[INFO] [stderr]     |                                                                      ^^^^^^^^^^^^^^^^^^^^ help: try: `f32::from(white_score)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `b`
[INFO] [stderr]    --> src/main.rs:306:18
[INFO] [stderr]     |
[INFO] [stderr] 306 |         for i in 0..21 * 21 {
[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] 306 |         for (i, <item>) in b.iter_mut().enumerate().take(21 * 21) {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:322:5
[INFO] [stderr]     |
[INFO] [stderr] 322 | /     fn index<'a>(&'a self, idx: usize) -> &'a Intersection {
[INFO] [stderr] 323 | |         &self.board[idx]
[INFO] [stderr] 324 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:329:5
[INFO] [stderr]     |
[INFO] [stderr] 329 | /     fn index_mut<'a>(&'a mut self, idx: usize) -> &'a mut Intersection {
[INFO] [stderr] 330 | |         self.board.index_mut(idx)
[INFO] [stderr] 331 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] error: use of `#[inline]` on trait method `neighbors` which has no body
[INFO] [stderr]    --> src/main.rs:358:5
[INFO] [stderr]     |
[INFO] [stderr] 358 |       #[inline]
[INFO] [stderr]     |  _____-^^^^^^^^
[INFO] [stderr] 359 | |     fn neighbors(&self, pos: u16) -> [u16; 4];
[INFO] [stderr]     | |____- help: remove
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::inline_fn_without_body)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#inline_fn_without_body
[INFO] [stderr] 
[INFO] [stderr] warning: this `.filter_map` can be written more simply using `.filter`
[INFO] [stderr]    --> src/main.rs:368:6
[INFO] [stderr]     |
[INFO] [stderr] 368 |                       self.neighbors(candidate).iter()
[INFO] [stderr]     |  _____________________^
[INFO] [stderr] 369 | |                         .filter_map(|idx| match idx {
[INFO] [stderr] 370 | |                                             _ if (|| valid.iter().any(|x| *x == *idx))() => None, //https://www.reddit.com/r/rust/comments/2ztiag/cannot_mutably_borrow_in_a_pattern_guard/
[INFO] [stderr] 371 | |                                             _ if self.index(*idx as usize)==color => Some(idx),
[INFO] [stderr] 372 | |                                             _ => None,
[INFO] [stderr] 373 | |                                             })
[INFO] [stderr]     | |______________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::unnecessary_filter_map)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_filter_map
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 | /                 self.neighbors(x)
[INFO] [stderr] 385 | |                     .iter()
[INFO] [stderr] 386 | |                     .map(|&y| y)
[INFO] [stderr]     | |________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 384 |                 self.neighbors(x)
[INFO] [stderr] 385 |                     .iter().cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:393:5
[INFO] [stderr]     |
[INFO] [stderr] 393 |     fn capture<'a>(&'a mut self, pos: u16) -> &'a mut Self;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:401:5
[INFO] [stderr]     |
[INFO] [stderr] 401 | /     fn capture<'a>(&'a mut self, pos: u16) -> &'a mut Board19 {
[INFO] [stderr] 402 | |         for i in self.group(pos) {
[INFO] [stderr] 403 | |             self[i as usize] = Intersection::Empty;
[INFO] [stderr] 404 | |         }
[INFO] [stderr] 405 | |         self
[INFO] [stderr] 406 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/main.rs:412:21
[INFO] [stderr]     |
[INFO] [stderr] 412 |     let boardsize = 0..s + 1 + 1;
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: use: `0..=s + 1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:457:5
[INFO] [stderr]     |
[INFO] [stderr] 457 |     fn moveplayer<'a>(&'a mut self, pos: usize) -> bool;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:458:5
[INFO] [stderr]     |
[INFO] [stderr] 458 |     fn movecore<'a>(&'a mut self, coord: usize);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:482:5
[INFO] [stderr]     |
[INFO] [stderr] 482 | /     fn movecore<'a>(&'a mut self, coord: usize){
[INFO] [stderr] 483 | |         let mut c: Vec<u16> = self.neighbors(coord as u16)
[INFO] [stderr] 484 | |                                   .into_iter()
[INFO] [stderr] 485 | |                                   .filter(|&i| {
[INFO] [stderr] ...   |
[INFO] [stderr] 494 | |         }
[INFO] [stderr] 495 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]    --> src/main.rs:483:31
[INFO] [stderr]     |
[INFO] [stderr] 483 |           let mut c: Vec<u16> = self.neighbors(coord as u16)
[INFO] [stderr]     |  _______________________________^
[INFO] [stderr] 484 | |                                   .into_iter()
[INFO] [stderr] 485 | |                                   .filter(|&i| {
[INFO] [stderr] 486 | |                                       self[*i as usize] == self.next_player &&
[INFO] [stderr] 487 | |                                       self.pseudo_lib(*i) == 0
[INFO] [stderr] 488 | |                                   })
[INFO] [stderr] 489 | |                                   .map(|&x| x)
[INFO] [stderr]     | |______________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]     |
[INFO] [stderr] 483 |         let mut c: Vec<u16> = self.neighbors(coord as u16)
[INFO] [stderr] 484 |                                   .into_iter()
[INFO] [stderr] 485 |                                   .filter(|&i| {
[INFO] [stderr] 486 |                                       self[*i as usize] == self.next_player &&
[INFO] [stderr] 487 |                                       self.pseudo_lib(*i) == 0
[INFO] [stderr] 488 |                                   }).cloned()
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: this .into_iter() call is equivalent to .iter() and will not move the array
[INFO] [stderr]    --> src/main.rs:484:36
[INFO] [stderr]     |
[INFO] [stderr] 484 |                                   .into_iter()
[INFO] [stderr]     |                                    ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::into_iter_on_array)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
[INFO] [stderr] 
[INFO] [stderr] warning: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:497:5
[INFO] [stderr]     |
[INFO] [stderr] 497 | /     fn moveplayer<'a>(&'a mut self, coord: usize) -> bool {
[INFO] [stderr] 498 | |         if self.is_player_move_valid(coord) {
[INFO] [stderr] 499 | |             self[coord as usize] = self.next_player;
[INFO] [stderr] 500 | |             self.next_player = self.flip_color();
[INFO] [stderr] ...   |
[INFO] [stderr] 506 | |         true
[INFO] [stderr] 507 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: type `MCTS_tree` should have a camel case name such as `MctsTree`
[INFO] [stderr]    --> src/main.rs:511:1
[INFO] [stderr]     |
[INFO] [stderr] 511 | / struct MCTS_tree{
[INFO] [stderr] 512 | |     board_state: Board19,
[INFO] [stderr] 513 | |     nx_player: Intersection,
[INFO] [stderr] 514 | |     board_hash: u16,
[INFO] [stderr] ...   |
[INFO] [stderr] 521 | |     last_move: u16,
[INFO] [stderr] 522 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_camel_case_types)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/main.rs:542:33
[INFO] [stderr]     |
[INFO] [stderr] 542 |     fn uct(&self, &parent_sims: &u32) -> f32 {
[INFO] [stderr]     |                                 ^^^^ help: consider passing by value instead: `u32`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` directly on a function argument is ignored. Consider using a reference type instead.
[INFO] [stderr]    --> src/main.rs:547:27
[INFO] [stderr]     |
[INFO] [stderr] 547 |     fn mcts_select(&self, ref tt: &HashMap<Zobrist,MCTS_tree>) -> MCTS_tree {
[INFO] [stderr]     |                           ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:559:28
[INFO] [stderr]     |
[INFO] [stderr] 559 |         let mut nx_board = self.board_state.clone();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.board_state`
[INFO] [stderr]     |
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/main.rs:596:28
[INFO] [stderr]     |
[INFO] [stderr] 596 |         let mut simboard = self.board_state.clone();
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `self.board_state`
[INFO] [stderr]     |
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:619:12
[INFO] [stderr]     |
[INFO] [stderr] 619 |         if self.board_state.empty_inter().len() == 0 { //TODO replace by legal move
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `self.board_state.empty_inter().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/main.rs:623:29
[INFO] [stderr]     |
[INFO] [stderr] 623 |         let mut tree_hash = th.clone();
[INFO] [stderr]     |                             ^^^^^^^^^^ help: try removing the `clone` call: `th`
[INFO] [stderr]     |
[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/main.rs:629:53
[INFO] [stderr]     |
[INFO] [stderr] 629 |         println!("count of potential moves:\t{:?}", tt.get(&tree_hash).unwrap().board_state.empty_inter().len());
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:630:52
[INFO] [stderr]     |
[INFO] [stderr] 630 |         println!("count of children moves:\t{:?}", tt.get(&tree_hash).unwrap().children.len());
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:632:15
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `tt.get(&tree_hash).unwrap().board_state.empty_inter().is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:632:15
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: length comparison to zero
[INFO] [stderr]    --> src/main.rs:632:83
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!tt.get(&tree_hash).unwrap().children.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:632:83
[INFO] [stderr]     |
[INFO] [stderr] 632 |         while tt.get(&tree_hash).unwrap().board_state.empty_inter().len() == 0 && tt.get(&tree_hash).unwrap().children.len() != 0 {
[INFO] [stderr]     |                                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:677:12
[INFO] [stderr]     |
[INFO] [stderr] 677 |         if tt.get(&tree_hash).unwrap().simulate()==tt.get(&tree_hash).unwrap().nx_player {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:677:52
[INFO] [stderr]     |
[INFO] [stderr] 677 |         if tt.get(&tree_hash).unwrap().simulate()==tt.get(&tree_hash).unwrap().nx_player {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:689:23
[INFO] [stderr]     |
[INFO] [stderr] 689 |           let nx_move = tt.get(&tree_hash)
[INFO] [stderr]     |  _______________________^
[INFO] [stderr] 690 | |                         .unwrap()
[INFO] [stderr]     | |_________________________________^ help: try this: `&tt[&tree_hash]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:692:34
[INFO] [stderr]     |
[INFO] [stderr] 692 |                         .map(|x| tt.get(x).unwrap().clone())
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^ help: try this: `&tt[x]`
[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: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/main.rs:697:43
[INFO] [stderr]     |
[INFO] [stderr] 697 |           println!("count children:\t{:?}", tt.get(&tree_hash)
[INFO] [stderr]     |  ___________________________________________^
[INFO] [stderr] 698 | |                         .unwrap()
[INFO] [stderr]     | |_________________________________^ help: try this: `&tt[&tree_hash]`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]    --> src/main.rs:727:5
[INFO] [stderr]     |
[INFO] [stderr] 727 | /     fn index<'a>(&'a self, idx: usize) -> &'a Zobrist {
[INFO] [stderr] 728 | |         &self.random_hashes[idx]
[INFO] [stderr] 729 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: called `ok().expect()` on a Result value. You can call `expect` directly on the `Result`
[INFO] [stderr]    --> src/main.rs:793:9
[INFO] [stderr]     |
[INFO] [stderr] 793 | /         stdin()
[INFO] [stderr] 794 | |             .read_line(&mut input)
[INFO] [stderr] 795 | |             .ok()
[INFO] [stderr] 796 | |             .expect("Failed to read line.");
[INFO] [stderr]     | |___________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ok_expect)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ok_expect
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rusty_go`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "4d7cc257fc0c932c8f8d823f3962e439a21155b10486a533520533d96d375e46"`
[INFO] running `"docker" "rm" "-f" "4d7cc257fc0c932c8f8d823f3962e439a21155b10486a533520533d96d375e46"`
[INFO] [stdout] 4d7cc257fc0c932c8f8d823f3962e439a21155b10486a533520533d96d375e46