[INFO] cloning repository https://github.com/CTHULHU-Jesus/rust-chess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CTHULHU-Jesus/rust-chess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCTHULHU-Jesus%2Frust-chess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCTHULHU-Jesus%2Frust-chess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 047b9dccaec1c7a11d9ec3734b3de696d42dc34a
[INFO] linting CTHULHU-Jesus/rust-chess against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCTHULHU-Jesus%2Frust-chess" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CTHULHU-Jesus/rust-chess
[INFO] finished tweaking git repo https://github.com/CTHULHU-Jesus/rust-chess
[INFO] tweaked toml for git repo https://github.com/CTHULHU-Jesus/rust-chess written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CTHULHU-Jesus/rust-chess on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CTHULHU-Jesus/rust-chess already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8639a78ee6854ab8ea3a6c197c0188813f5b39df21d96f5304bc034ea5bd7dd9
[INFO] running `Command { std: "docker" "start" "-a" "8639a78ee6854ab8ea3a6c197c0188813f5b39df21d96f5304bc034ea5bd7dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8639a78ee6854ab8ea3a6c197c0188813f5b39df21d96f5304bc034ea5bd7dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8639a78ee6854ab8ea3a6c197c0188813f5b39df21d96f5304bc034ea5bd7dd9", kill_on_drop: false }`
[INFO] [stdout] 8639a78ee6854ab8ea3a6c197c0188813f5b39df21d96f5304bc034ea5bd7dd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f9cc5efa71520030eaadbb76c3f7953ed55e4fd5442935ed10f9f020dc4c0ba
[INFO] running `Command { std: "docker" "start" "-a" "2f9cc5efa71520030eaadbb76c3f7953ed55e4fd5442935ed10f9f020dc4c0ba", kill_on_drop: false }`
[INFO] [stderr]     Checking chess v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this looks like you are trying to use `.. -= ..`, but you really are doing `.. = (- ..)`
[INFO] [stdout]    --> src/main.rs:160:34
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         direction=-1;
[INFO] [stdout]     |                                  ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: to remove this lint, use either `-=` or `= -`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_assignment_formatting
[INFO] [stdout]     = note: `#[warn(clippy::suspicious_assignment_formatting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this looks like you are trying to use `.. -= ..`, but you really are doing `.. = (- ..)`
[INFO] [stdout]    --> src/main.rs:160:34
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         direction=-1;
[INFO] [stdout]     |                                  ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: to remove this lint, use either `-=` or `= -`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_assignment_formatting
[INFO] [stdout]     = note: `#[warn(clippy::suspicious_assignment_formatting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:203:6
[INFO] [stdout]     |
[INFO] [stdout] 203 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:213:6
[INFO] [stdout]     |
[INFO] [stdout] 213 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:203:6
[INFO] [stdout]     |
[INFO] [stdout] 203 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:213:6
[INFO] [stdout]     |
[INFO] [stdout] 213 |     };
[INFO] [stdout]     |      ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/main.rs:222:24
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let act = Ok(Move {from:from,to:to});
[INFO] [stdout]     |                        ^^^^^^^^^ help: replace it with: `from`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/main.rs:222:34
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let act = Ok(Move {from:from,to:to});
[INFO] [stdout]     |                                  ^^^^^ help: replace it with: `to`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this is an `else {..}` but the formatting might hide it
[INFO] [stdout]    --> src/main.rs:226:6
[INFO] [stdout]     |
[INFO] [stdout] 226 |       } else
[INFO] [stdout]     |  ______^
[INFO] [stdout] 227 | |     {
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: to remove this lint, remove the `else` or remove the new line between `else` and `{..}`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stdout]     = note: `#[warn(clippy::suspicious_else_formatting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this is an `else {..}` but the formatting might hide it
[INFO] [stdout]    --> src/main.rs:241:22
[INFO] [stdout]     |
[INFO] [stdout] 241 |                       } else
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 242 | |                     {
[INFO] [stdout]     | |____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: to remove this lint, remove the `else` or remove the new line between `else` and `{..}`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/main.rs:222:24
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let act = Ok(Move {from:from,to:to});
[INFO] [stdout]     |                        ^^^^^^^^^ help: replace it with: `from`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/main.rs:222:34
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let act = Ok(Move {from:from,to:to});
[INFO] [stdout]     |                                  ^^^^^ help: replace it with: `to`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this is an `else {..}` but the formatting might hide it
[INFO] [stdout]    --> src/main.rs:226:6
[INFO] [stdout]     |
[INFO] [stdout] 226 |       } else
[INFO] [stdout]     |  ______^
[INFO] [stdout] 227 | |     {
[INFO] [stdout]     | |____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: to remove this lint, remove the `else` or remove the new line between `else` and `{..}`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stdout]     = note: `#[warn(clippy::suspicious_else_formatting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this is an `else {..}` but the formatting might hide it
[INFO] [stdout]    --> src/main.rs:241:22
[INFO] [stdout]     |
[INFO] [stdout] 241 |                       } else
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 242 | |                     {
[INFO] [stdout]     | |____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: to remove this lint, remove the `else` or remove the new line between `else` and `{..}`
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#suspicious_else_formatting
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Read` is never used
[INFO] [stdout]   --> src/data_types.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub trait Read<T> {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Read` is never used
[INFO] [stdout]   --> src/data_types.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub trait Read<T> {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]    --> src/data_types.rs:122:31
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn switch(p : &mut Player) -> () {
[INFO] [stdout]     |                               ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]     = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:134:26
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let (old_i,old_j) = (usize::from(old_i),usize::from(old_j));
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `old_i`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]     = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:134:45
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let (old_i,old_j) = (usize::from(old_i),usize::from(old_j));
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `old_j`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:136:26
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let (new_i,new_j) = (usize::from(new_i),usize::from(new_j));
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `new_i`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:136:45
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let (new_i,new_j) = (usize::from(new_i),usize::from(new_j));
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `new_j`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]    --> src/data_types.rs:141:30
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub fn print_board(b : Board) -> () {
[INFO] [stdout]     |                              ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]    --> src/data_types.rs:122:31
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub fn switch(p : &mut Player) -> () {
[INFO] [stdout]     |                               ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout]     = note: `#[warn(clippy::unused_unit)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `j` is only used to index `b`
[INFO] [stdout]    --> src/data_types.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         for j in 0..8 {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]     = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 152 -         for j in 0..8 {
[INFO] [stdout] 152 +         for <item> in &b {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:134:26
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let (old_i,old_j) = (usize::from(old_i),usize::from(old_j));
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `old_i`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout]     = note: `#[warn(clippy::useless_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:134:45
[INFO] [stdout]     |
[INFO] [stdout] 134 |     let (old_i,old_j) = (usize::from(old_i),usize::from(old_j));
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `old_j`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this if-then-else expression returns a bool literal
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if x { false } else { true }
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can reduce it to: `!x`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stdout]    = note: `#[warn(clippy::needless_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:136:26
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let (new_i,new_j) = (usize::from(new_i),usize::from(new_j));
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `new_i`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Option::map`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         match board[i as usize][j as usize] {
[INFO] [stdout] 15 | |             None => None,
[INFO] [stdout] 16 | |             Some(P(p_player,_)) => Some(p_player),
[INFO] [stdout] 17 | |         }
[INFO] [stdout]    | |_________^ help: try: `board[i as usize][j as usize].map(|P(p_player,_)| p_player)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_map
[INFO] [stdout]    = note: `#[warn(clippy::manual_map)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless conversion to the same type: `usize`
[INFO] [stdout]    --> src/data_types.rs:136:45
[INFO] [stdout]     |
[INFO] [stdout] 136 |     let (new_i,new_j) = (usize::from(new_i),usize::from(new_j));
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^ help: consider removing `usize::from()`: `new_j`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_conversion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 if (a == 0 || a == 1) && (b == 0 || a == 1) {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `a == 1 || a == 0 && b == 0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unneeded unit return type
[INFO] [stdout]    --> src/data_types.rs:141:30
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub fn print_board(b : Board) -> () {
[INFO] [stdout]     |                              ^^^^^^ help: remove the `-> ()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_unit
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `j` is only used to index `b`
[INFO] [stdout]    --> src/data_types.rs:152:18
[INFO] [stdout]     |
[INFO] [stdout] 152 |         for j in 0..8 {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout]     = note: `#[warn(clippy::needless_range_loop)]` on by default
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 152 -         for j in 0..8 {
[INFO] [stdout] 152 +         for <item> in &b {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/main.rs:55:38
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...                   in_way = board[old_i as usize][j as usize] != None;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[old_i as usize][j as usize].is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout]    = note: `#[warn(clippy::partialeq_to_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this if-then-else expression returns a bool literal
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     if x { false } else { true }
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: you can reduce it to: `!x`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_bool
[INFO] [stdout]    = note: `#[warn(clippy::needless_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/main.rs:67:38
[INFO] [stdout]    |
[INFO] [stdout] 67 | ...                   in_way = board[i as usize][old_j as usize] != None;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[i as usize][old_j as usize].is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Option::map`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         match board[i as usize][j as usize] {
[INFO] [stdout] 15 | |             None => None,
[INFO] [stdout] 16 | |             Some(P(p_player,_)) => Some(p_player),
[INFO] [stdout] 17 | |         }
[INFO] [stdout]    | |_________^ help: try: `board[i as usize][j as usize].map(|P(p_player,_)| p_player)`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_map
[INFO] [stdout]    = note: `#[warn(clippy::manual_map)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]   --> src/main.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 if (a == 0 || a == 1) && (b == 0 || a == 1) {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `a == 1 || a == 0 && b == 0`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]    = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:100:46
[INFO] [stdout]     |
[INFO] [stdout] 100 | ...                   in_way = board[(old_i+x) as usize][(old_j+x) as usize] !=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i+x) as usize][(old_j+x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:112:46
[INFO] [stdout]     |
[INFO] [stdout] 112 | ...                   in_way = board[(old_i-x) as usize][(old_j+x) as usize] !=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i-x) as usize][(old_j+x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/main.rs:55:38
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...                   in_way = board[old_i as usize][j as usize] != None;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[old_i as usize][j as usize].is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout]    = note: `#[warn(clippy::partialeq_to_none)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:124:46
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   in_way = board[(old_i+x) as usize][(old_j-x) as usize]!=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i+x) as usize][(old_j-x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]   --> src/main.rs:67:38
[INFO] [stdout]    |
[INFO] [stdout] 67 | ...                   in_way = board[i as usize][old_j as usize] != None;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[i as usize][old_j as usize].is_some()`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:136:46
[INFO] [stdout]     |
[INFO] [stdout] 136 | ...                   in_way = board[(old_i-x) as usize][(old_j-x) as usize] !=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i-x) as usize][(old_j-x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:100:46
[INFO] [stdout]     |
[INFO] [stdout] 100 | ...                   in_way = board[(old_i+x) as usize][(old_j+x) as usize] !=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i+x) as usize][(old_j+x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/main.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 | /                         match board[new_i as usize][new_j as usize] {
[INFO] [stdout] 174 | |                             Some(P(p_player,_)) if p_player != player => { true }
[INFO] [stdout] 175 | |                             _ => { false }
[INFO] [stdout] 176 | |                         }
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]     = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 173 -                         match board[new_i as usize][new_j as usize] {
[INFO] [stdout] 174 -                             Some(P(p_player,_)) if p_player != player => { true }
[INFO] [stdout] 175 -                             _ => { false }
[INFO] [stdout] 176 -                         }
[INFO] [stdout] 173 +                         matches!(board[new_i as usize][new_j as usize], Some(P(p_player,_)) if p_player != player)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:112:46
[INFO] [stdout]     |
[INFO] [stdout] 112 | ...                   in_way = board[(old_i-x) as usize][(old_j+x) as usize] !=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i-x) as usize][(old_j+x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:124:46
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   in_way = board[(old_i+x) as usize][(old_j-x) as usize]!=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i+x) as usize][(old_j-x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:136:46
[INFO] [stdout]     |
[INFO] [stdout] 136 | ...                   in_way = board[(old_i-x) as usize][(old_j-x) as usize] !=None;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_some()` instead: `board[(old_i-x) as usize][(old_j-x) as usize].is_some()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |         if chars.next() == None {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `chars.next().is_none()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: match expression looks like `matches!` macro
[INFO] [stdout]    --> src/main.rs:173:25
[INFO] [stdout]     |
[INFO] [stdout] 173 | /                         match board[new_i as usize][new_j as usize] {
[INFO] [stdout] 174 | |                             Some(P(p_player,_)) if p_player != player => { true }
[INFO] [stdout] 175 | |                             _ => { false }
[INFO] [stdout] 176 | |                         }
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro
[INFO] [stdout]     = note: `#[warn(clippy::match_like_matches_macro)]` on by default
[INFO] [stdout] help: use `matches!` directly
[INFO] [stdout]     |
[INFO] [stdout] 173 -                         match board[new_i as usize][new_j as usize] {
[INFO] [stdout] 174 -                             Some(P(p_player,_)) if p_player != player => { true }
[INFO] [stdout] 175 -                             _ => { false }
[INFO] [stdout] 176 -                         }
[INFO] [stdout] 173 +                         matches!(board[new_i as usize][new_j as usize], Some(P(p_player,_)) if p_player != player)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |         if chars.next() == None {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `chars.next().is_none()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/main.rs:234:21
[INFO] [stdout]     |
[INFO] [stdout] 234 | /                     if p_player == player {
[INFO] [stdout] 235 | |                         let action = act.expect("");
[INFO] [stdout] 236 | |                        if valid_move(board,player,piece,&action) {
[INFO] [stdout] 237 | |                            act
[INFO] [stdout] ...   |
[INFO] [stdout] 243 | |                         Err(SELECT_ERR)
[INFO] [stdout] 244 | |                     }
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 231 ~             Some(P(p_player,piece))
[INFO] [stdout] 232 |                     // println!("selected {} at ({},{})", P(p_player,piece).show(),old_i,old_j);
[INFO] [stdout] 233 ~                     if p_player == player => {
[INFO] [stdout] 234 |                         let action = act.expect("");
[INFO] [stdout] ...
[INFO] [stdout] 239 |                        }
[INFO] [stdout] 240 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `expect()` on `Ok` value
[INFO] [stdout]    --> src/main.rs:235:38
[INFO] [stdout]     |
[INFO] [stdout] 235 |                         let action = act.expect("");
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the `Ok` and `expect()`
[INFO] [stdout]    --> src/main.rs:222:15
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let act = Ok(Move {from:from,to:to});
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_literal_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_literal_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `board`
[INFO] [stdout]    --> src/main.rs:254:14
[INFO] [stdout]     |
[INFO] [stdout] 254 |     for i in 0..8 {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 254 -     for i in 0..8 {
[INFO] [stdout] 254 +     for <item> in board.iter().take(8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `j` is only used to index `board`
[INFO] [stdout]    --> src/main.rs:255:18
[INFO] [stdout]     |
[INFO] [stdout] 255 |         for j in 0..8 {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 255 -         for j in 0..8 {
[INFO] [stdout] 255 +         for <item> in board.iter().take(8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 | /             match board[i][j] {
[INFO] [stdout] 257 | |                Some(P(player,King)) => {
[INFO] [stdout] 258 | |                    match player {
[INFO] [stdout] 259 | |                        White => {white_king_exists = true;}
[INFO] [stdout] ...   |
[INFO] [stdout] 263 | |                 _ => ()
[INFO] [stdout] 264 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 256 ~             if let Some(P(player,King)) = board[i][j] {
[INFO] [stdout] 257 +                 match player {
[INFO] [stdout] 258 +                     White => {white_king_exists = true;}
[INFO] [stdout] 259 +                     Black => {black_king_exists = true;}
[INFO] [stdout] 260 +                 }
[INFO] [stdout] 261 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:281:11
[INFO] [stdout]     |
[INFO] [stdout] 281 |     while winner == None {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `winner.is_none()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `if` can be collapsed into the outer `match`
[INFO] [stdout]    --> src/main.rs:234:21
[INFO] [stdout]     |
[INFO] [stdout] 234 | /                     if p_player == player {
[INFO] [stdout] 235 | |                         let action = act.expect("");
[INFO] [stdout] 236 | |                        if valid_move(board,player,piece,&action) {
[INFO] [stdout] 237 | |                            act
[INFO] [stdout] ...   |
[INFO] [stdout] 243 | |                         Err(SELECT_ERR)
[INFO] [stdout] 244 | |                     }
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_match
[INFO] [stdout]     = note: `#[warn(clippy::collapsible_match)]` on by default
[INFO] [stdout] help: collapse nested if block
[INFO] [stdout]     |
[INFO] [stdout] 231 ~             Some(P(p_player,piece))
[INFO] [stdout] 232 |                     // println!("selected {} at ({},{})", P(p_player,piece).show(),old_i,old_j);
[INFO] [stdout] 233 ~                     if p_player == player => {
[INFO] [stdout] 234 |                         let action = act.expect("");
[INFO] [stdout] ...
[INFO] [stdout] 239 |                        }
[INFO] [stdout] 240 ~                     }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `expect()` on `Ok` value
[INFO] [stdout]    --> src/main.rs:235:38
[INFO] [stdout]     |
[INFO] [stdout] 235 |                         let action = act.expect("");
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the `Ok` and `expect()`
[INFO] [stdout]    --> src/main.rs:222:15
[INFO] [stdout]     |
[INFO] [stdout] 222 |     let act = Ok(Move {from:from,to:to});
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_literal_unwrap
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_literal_unwrap)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `i` is only used to index `board`
[INFO] [stdout]    --> src/main.rs:254:14
[INFO] [stdout]     |
[INFO] [stdout] 254 |     for i in 0..8 {
[INFO] [stdout]     |              ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 254 -     for i in 0..8 {
[INFO] [stdout] 254 +     for <item> in board.iter().take(8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the loop variable `j` is only used to index `board`
[INFO] [stdout]    --> src/main.rs:255:18
[INFO] [stdout]     |
[INFO] [stdout] 255 |         for j in 0..8 {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stdout] help: consider using an iterator
[INFO] [stdout]     |
[INFO] [stdout] 255 -         for j in 0..8 {
[INFO] [stdout] 255 +         for <item> in board.iter().take(8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: you seem to be trying to use `match` for destructuring a single pattern. Consider using `if let`
[INFO] [stdout]    --> src/main.rs:256:13
[INFO] [stdout]     |
[INFO] [stdout] 256 | /             match board[i][j] {
[INFO] [stdout] 257 | |                Some(P(player,King)) => {
[INFO] [stdout] 258 | |                    match player {
[INFO] [stdout] 259 | |                        White => {white_king_exists = true;}
[INFO] [stdout] ...   |
[INFO] [stdout] 263 | |                 _ => ()
[INFO] [stdout] 264 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stdout]     = note: `#[warn(clippy::single_match)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 256 ~             if let Some(P(player,King)) = board[i][j] {
[INFO] [stdout] 257 +                 match player {
[INFO] [stdout] 258 +                     White => {white_king_exists = true;}
[INFO] [stdout] 259 +                     Black => {black_king_exists = true;}
[INFO] [stdout] 260 +                 }
[INFO] [stdout] 261 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: binary comparison to literal `Option::None`
[INFO] [stdout]    --> src/main.rs:281:11
[INFO] [stdout]     |
[INFO] [stdout] 281 |     while winner == None {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^ help: use `Option::is_none()` instead: `winner.is_none()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_to_none
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "2f9cc5efa71520030eaadbb76c3f7953ed55e4fd5442935ed10f9f020dc4c0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f9cc5efa71520030eaadbb76c3f7953ed55e4fd5442935ed10f9f020dc4c0ba", kill_on_drop: false }`
[INFO] [stdout] 2f9cc5efa71520030eaadbb76c3f7953ed55e4fd5442935ed10f9f020dc4c0ba