[INFO] updating cached repository adam-mcdaniel/parkinglot-generator-optimizer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/adam-mcdaniel/parkinglot-generator-optimizer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/adam-mcdaniel/parkinglot-generator-optimizer" "work/ex/clippy-test-run/sources/stable/gh/adam-mcdaniel/parkinglot-generator-optimizer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/adam-mcdaniel/parkinglot-generator-optimizer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/adam-mcdaniel/parkinglot-generator-optimizer" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/adam-mcdaniel/parkinglot-generator-optimizer"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/adam-mcdaniel/parkinglot-generator-optimizer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ac4391480658f0bba08eb343db1a6cf963298e59
[INFO] sha for GitHub repo adam-mcdaniel/parkinglot-generator-optimizer: ac4391480658f0bba08eb343db1a6cf963298e59
[INFO] validating manifest of adam-mcdaniel/parkinglot-generator-optimizer 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 adam-mcdaniel/parkinglot-generator-optimizer 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 adam-mcdaniel/parkinglot-generator-optimizer
[INFO] finished frobbing adam-mcdaniel/parkinglot-generator-optimizer
[INFO] frobbed toml for adam-mcdaniel/parkinglot-generator-optimizer written to work/ex/clippy-test-run/sources/stable/gh/adam-mcdaniel/parkinglot-generator-optimizer/Cargo.toml
[INFO] started frobbing adam-mcdaniel/parkinglot-generator-optimizer
[INFO] finished frobbing adam-mcdaniel/parkinglot-generator-optimizer
[INFO] frobbed toml for adam-mcdaniel/parkinglot-generator-optimizer written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/adam-mcdaniel/parkinglot-generator-optimizer/Cargo.toml
[INFO] crate adam-mcdaniel/parkinglot-generator-optimizer 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 adam-mcdaniel/parkinglot-generator-optimizer against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/adam-mcdaniel/parkinglot-generator-optimizer:/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] 80886f33c608f3f10e50a9977332e0a3897840a4afde616193829a1c8a19ba35
[INFO] running `"docker" "start" "-a" "80886f33c608f3f10e50a9977332e0a3897840a4afde616193829a1c8a19ba35"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Checking pathfinding v1.0.3
[INFO] [stderr]     Checking parking v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/astar.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/astar.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     return result;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/optimize.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     return score;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `score`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/optimize.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     return best_lot;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `best_lot`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     return new_lot;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `new_lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     return new_lot;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `new_lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 | /     return match new_lot.get_exits() == lot.get_exits() {
[INFO] [stderr] 189 | |         true => new_lot.clone(),
[INFO] [stderr] 190 | |         false => lot.clone()
[INFO] [stderr] 191 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 188 |     match new_lot.get_exits() == lot.get_exits() {
[INFO] [stderr] 189 |         true => new_lot.clone(),
[INFO] [stderr] 190 |         false => lot.clone()
[INFO] [stderr] 191 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:227:5
[INFO] [stderr]     |
[INFO] [stderr] 227 |     return average_distance;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `average_distance`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:253:5
[INFO] [stderr]     |
[INFO] [stderr] 253 |     return lot;
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     return new_lot;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `new_lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             return self.lot[y as usize][x as usize];
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.lot[y as usize][x as usize]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             return OUT_OF_BOUNDS;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `OUT_OF_BOUNDS`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         return exits;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `exits`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         return spaces;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `spaces`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/parkinglot.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         return i;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `i`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/parkinglot.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         return result.to_string();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `result.to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |             return optimize(&lot);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `optimize(&lot)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/astar.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         return result;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/astar.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     return result;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/optimize.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     return score;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ help: remove `return` as shown: `score`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/optimize.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     return best_lot;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: remove `return` as shown: `best_lot`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     return new_lot;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `new_lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:152:5
[INFO] [stderr]     |
[INFO] [stderr] 152 |     return new_lot;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `new_lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:188:5
[INFO] [stderr]     |
[INFO] [stderr] 188 | /     return match new_lot.get_exits() == lot.get_exits() {
[INFO] [stderr] 189 | |         true => new_lot.clone(),
[INFO] [stderr] 190 | |         false => lot.clone()
[INFO] [stderr] 191 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]     |
[INFO] [stderr] 188 |     match new_lot.get_exits() == lot.get_exits() {
[INFO] [stderr] 189 |         true => new_lot.clone(),
[INFO] [stderr] 190 |         false => lot.clone()
[INFO] [stderr] 191 |     }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:227:5
[INFO] [stderr]     |
[INFO] [stderr] 227 |     return average_distance;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `average_distance`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:253:5
[INFO] [stderr]     |
[INFO] [stderr] 253 |     return lot;
[INFO] [stderr]     |     ^^^^^^^^^^^ help: remove `return` as shown: `lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/optimize.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     return new_lot;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^ help: remove `return` as shown: `new_lot`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             return self.lot[y as usize][x as usize];
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.lot[y as usize][x as usize]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             return OUT_OF_BOUNDS;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `OUT_OF_BOUNDS`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         return exits;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: remove `return` as shown: `exits`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/generate/parkinglot.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         return spaces;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `spaces`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/parkinglot.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         return i;
[INFO] [stderr]     |         ^^^^^^^^^ help: remove `return` as shown: `i`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/generate/parkinglot.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         return result.to_string();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `result.to_string()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:111:5
[INFO] [stderr]     |
[INFO] [stderr] 111 |     return Ok(());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |             return optimize(&lot);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `optimize(&lot)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/generate/optimize.rs:188:12
[INFO] [stderr]     |
[INFO] [stderr] 188 |       return match new_lot.get_exits() == lot.get_exits() {
[INFO] [stderr]     |  ____________^
[INFO] [stderr] 189 | |         true => new_lot.clone(),
[INFO] [stderr] 190 | |         false => lot.clone()
[INFO] [stderr] 191 | |     };
[INFO] [stderr]     | |_____^ help: consider using an if/else expression: `if new_lot.get_exits() == lot.get_exits() { new_lot.clone() } else { lot.clone() }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/generate/optimize.rs:277:17
[INFO] [stderr]     |
[INFO] [stderr] 277 | /                 match get_path(Pos(x, y), exit, &new_lot) {
[INFO] [stderr] 278 | |                     Some(_) => {available_exits += 1;}
[INFO] [stderr] 279 | |                     None => {}
[INFO] [stderr] 280 | |                 }
[INFO] [stderr]     | |_________________^ help: try this: `if let Some(_) = get_path(Pos(x, y), exit, &new_lot) {available_exits += 1;}`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/generate/parkinglot.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 | /                 match self.position(x, y) {
[INFO] [stderr] 60 | |                     EXIT  => {
[INFO] [stderr] 61 | |                         exits.push(Pos(x, y));
[INFO] [stderr] 62 | |                     },
[INFO] [stderr] 63 | |                     _      => {}
[INFO] [stderr] 64 | |                 };
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 if let EXIT = self.position(x, y) {
[INFO] [stderr] 60 |     exits.push(Pos(x, y));
[INFO] [stderr] 61 | };
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/generate/parkinglot.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 | /                 match self.position(x, y) {
[INFO] [stderr] 78 | |                     SPACE  => {
[INFO] [stderr] 79 | |                         spaces.push(Pos(x, y));
[INFO] [stderr] 80 | |                     },
[INFO] [stderr] 81 | |                     _      => {}
[INFO] [stderr] 82 | |                 };
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 if let SPACE = self.position(x, y) {
[INFO] [stderr] 78 |     spaces.push(Pos(x, y));
[INFO] [stderr] 79 | };
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/generate/parkinglot.rs:134:27
[INFO] [stderr]     |
[INFO] [stderr] 134 |                     match column.clone() {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^ help: try dereferencing it: `*column`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/generate/parkinglot.rs:157:33
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 result += match column.clone() {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: try dereferencing it: `*column`
[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: the variable `i` is used as a loop counter. Consider using `for (i, item) in threads.enumerate()` or similar iterators
[INFO] [stderr]   --> src/main.rs:73:14
[INFO] [stderr]    |
[INFO] [stderr] 73 |     for t in threads {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/generate/optimize.rs:188:12
[INFO] [stderr]     |
[INFO] [stderr] 188 |       return match new_lot.get_exits() == lot.get_exits() {
[INFO] [stderr]     |  ____________^
[INFO] [stderr] 189 | |         true => new_lot.clone(),
[INFO] [stderr] 190 | |         false => lot.clone()
[INFO] [stderr] 191 | |     };
[INFO] [stderr]     | |_____^ help: consider using an if/else expression: `if new_lot.get_exits() == lot.get_exits() { new_lot.clone() } else { lot.clone() }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/generate/optimize.rs:277:17
[INFO] [stderr]     |
[INFO] [stderr] 277 | /                 match get_path(Pos(x, y), exit, &new_lot) {
[INFO] [stderr] 278 | |                     Some(_) => {available_exits += 1;}
[INFO] [stderr] 279 | |                     None => {}
[INFO] [stderr] 280 | |                 }
[INFO] [stderr]     | |_________________^ help: try this: `if let Some(_) = get_path(Pos(x, y), exit, &new_lot) {available_exits += 1;}`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/generate/parkinglot.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 | /                 match self.position(x, y) {
[INFO] [stderr] 60 | |                     EXIT  => {
[INFO] [stderr] 61 | |                         exits.push(Pos(x, y));
[INFO] [stderr] 62 | |                     },
[INFO] [stderr] 63 | |                     _      => {}
[INFO] [stderr] 64 | |                 };
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 if let EXIT = self.position(x, y) {
[INFO] [stderr] 60 |     exits.push(Pos(x, y));
[INFO] [stderr] 61 | };
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/generate/parkinglot.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 | /                 match self.position(x, y) {
[INFO] [stderr] 78 | |                     SPACE  => {
[INFO] [stderr] 79 | |                         spaces.push(Pos(x, y));
[INFO] [stderr] 80 | |                     },
[INFO] [stderr] 81 | |                     _      => {}
[INFO] [stderr] 82 | |                 };
[INFO] [stderr]    | |_________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] help: try this
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 if let SPACE = self.position(x, y) {
[INFO] [stderr] 78 |     spaces.push(Pos(x, y));
[INFO] [stderr] 79 | };
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/generate/parkinglot.rs:134:27
[INFO] [stderr]     |
[INFO] [stderr] 134 |                     match column.clone() {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^ help: try dereferencing it: `*column`
[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: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/generate/parkinglot.rs:157:33
[INFO] [stderr]     |
[INFO] [stderr] 157 |                 result += match column.clone() {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: try dereferencing it: `*column`
[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: the variable `i` is used as a loop counter. Consider using `for (i, item) in threads.enumerate()` or similar iterators
[INFO] [stderr]   --> src/main.rs:73:14
[INFO] [stderr]    |
[INFO] [stderr] 73 |     for t in threads {
[INFO] [stderr]    |              ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::explicit_counter_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_counter_loop
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `"docker" "inspect" "80886f33c608f3f10e50a9977332e0a3897840a4afde616193829a1c8a19ba35"`
[INFO] running `"docker" "rm" "-f" "80886f33c608f3f10e50a9977332e0a3897840a4afde616193829a1c8a19ba35"`
[INFO] [stdout] 80886f33c608f3f10e50a9977332e0a3897840a4afde616193829a1c8a19ba35