[INFO] updating cached repository jramos14/Binary-Search-Tree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jramos14/Binary-Search-Tree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jramos14/Binary-Search-Tree" "work/ex/clippy-test-run/sources/stable/gh/jramos14/Binary-Search-Tree"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/jramos14/Binary-Search-Tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jramos14/Binary-Search-Tree" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jramos14/Binary-Search-Tree"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jramos14/Binary-Search-Tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c5598a68c35fb07150343623512accd0811a259
[INFO] sha for GitHub repo jramos14/Binary-Search-Tree: 8c5598a68c35fb07150343623512accd0811a259
[INFO] validating manifest of jramos14/Binary-Search-Tree 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 jramos14/Binary-Search-Tree 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 jramos14/Binary-Search-Tree
[INFO] finished frobbing jramos14/Binary-Search-Tree
[INFO] frobbed toml for jramos14/Binary-Search-Tree written to work/ex/clippy-test-run/sources/stable/gh/jramos14/Binary-Search-Tree/Cargo.toml
[INFO] started frobbing jramos14/Binary-Search-Tree
[INFO] finished frobbing jramos14/Binary-Search-Tree
[INFO] frobbed toml for jramos14/Binary-Search-Tree written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/jramos14/Binary-Search-Tree/Cargo.toml
[INFO] crate jramos14/Binary-Search-Tree 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 jramos14/Binary-Search-Tree against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/jramos14/Binary-Search-Tree:/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] ffa87527137156130c3734e173b287d062f92c2a872b820833fcd6aaf3aa2fd9
[INFO] running `"docker" "start" "-a" "ffa87527137156130c3734e173b287d062f92c2a872b820833fcd6aaf3aa2fd9"`
[INFO] [stderr]     Checking your v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/lib.rs:125:29
[INFO] [stderr]     |
[INFO] [stderr] 125 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:146:29
[INFO] [stderr]     |
[INFO] [stderr] 146 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:152:29
[INFO] [stderr]     |
[INFO] [stderr] 152 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:160:21
[INFO] [stderr]     |
[INFO] [stderr] 160 |                     return false
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:176:33
[INFO] [stderr]     |
[INFO] [stderr] 176 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:183:33
[INFO] [stderr]     |
[INFO] [stderr] 183 |                                 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/lib.rs:198:33
[INFO] [stderr]     |
[INFO] [stderr] 198 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:205:33
[INFO] [stderr]     |
[INFO] [stderr] 205 |                                 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/lib.rs:213:25
[INFO] [stderr]     |
[INFO] [stderr] 213 |                         return true
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:389:17
[INFO] [stderr]     |
[INFO] [stderr] 389 |                 return true
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:400:21
[INFO] [stderr]     |
[INFO] [stderr] 400 |                     return false
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |                 return false
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:452:21
[INFO] [stderr]     |
[INFO] [stderr] 452 |                     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/lib.rs:125:29
[INFO] [stderr]     |
[INFO] [stderr] 125 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:131:29
[INFO] [stderr]     |
[INFO] [stderr] 131 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:146:29
[INFO] [stderr]     |
[INFO] [stderr] 146 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:152:29
[INFO] [stderr]     |
[INFO] [stderr] 152 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:160:21
[INFO] [stderr]     |
[INFO] [stderr] 160 |                     return false
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:176:33
[INFO] [stderr]     |
[INFO] [stderr] 176 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:183:33
[INFO] [stderr]     |
[INFO] [stderr] 183 |                                 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/lib.rs:198:33
[INFO] [stderr]     |
[INFO] [stderr] 198 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:205:33
[INFO] [stderr]     |
[INFO] [stderr] 205 |                                 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/lib.rs:213:25
[INFO] [stderr]     |
[INFO] [stderr] 213 |                         return true
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:389:17
[INFO] [stderr]     |
[INFO] [stderr] 389 |                 return true
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/lib.rs:400:21
[INFO] [stderr]     |
[INFO] [stderr] 400 |                     return false
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |                 return false
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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/lib.rs:452:21
[INFO] [stderr]     |
[INFO] [stderr] 452 |                     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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/lib.rs:225:17
[INFO] [stderr]     |
[INFO] [stderr] 225 | /                 match self.left {
[INFO] [stderr] 226 | |                     Some(ref left_node) => {
[INFO] [stderr] 227 | |                         //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 228 | |                         let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 241 | |                     }
[INFO] [stderr] 242 | |                 }
[INFO] [stderr]     | |_________________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 if let Some(ref left_node) = self.left {
[INFO] [stderr] 226 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 227 |     let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] 228 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 229 | 
[INFO] [stderr] 230 |     output.append(result);
[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/lib.rs:244:17
[INFO] [stderr]     |
[INFO] [stderr] 244 | /                 match self.right {
[INFO] [stderr] 245 | |                     Some(ref right_node) => {
[INFO] [stderr] 246 | |                         //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 247 | |                         let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 255 | |                     }
[INFO] [stderr] 256 | |                 }
[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] 244 |                 if let Some(ref right_node) = self.right {
[INFO] [stderr] 245 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 246 |     let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] 247 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 248 |     //while result.len() > 0 {
[INFO] [stderr] 249 |     output.append(result);
[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/lib.rs:273:9
[INFO] [stderr]     |
[INFO] [stderr] 273 | /         match self.left {
[INFO] [stderr] 274 | |             Some(ref left_node) => {
[INFO] [stderr] 275 | |                 //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 276 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 286 | |             }
[INFO] [stderr] 287 | |         }
[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] 273 |         if let Some(ref left_node) = self.left {
[INFO] [stderr] 274 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 275 | 
[INFO] [stderr] 276 |     let mut result : &mut Vec<&'a T> = &mut left_node.inorder();
[INFO] [stderr] 277 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 278 | 
[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/lib.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 | /         match self.right {
[INFO] [stderr] 294 | |             Some(ref right_node) => {
[INFO] [stderr] 295 | |                 //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 296 | |                 let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 304 | |             }
[INFO] [stderr] 305 | |         }
[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] 293 |         if let Some(ref right_node) = self.right {
[INFO] [stderr] 294 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 295 |     let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] 296 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 297 |     //while result.len() > 0 {
[INFO] [stderr] 298 |     output.append(result);
[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/lib.rs:315:13
[INFO] [stderr]     |
[INFO] [stderr] 315 | /             match self.left {
[INFO] [stderr] 316 | |                 Some(ref left_node) => {
[INFO] [stderr] 317 | |                     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 318 | |                     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 331 | |                 }
[INFO] [stderr] 332 | |             }
[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] 315 |             if let Some(ref left_node) = self.left {
[INFO] [stderr] 316 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 317 |     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] 318 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 319 | 
[INFO] [stderr] 320 |     output.append(result);
[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/lib.rs:334:13
[INFO] [stderr]     |
[INFO] [stderr] 334 | /             match self.right {
[INFO] [stderr] 335 | |                 Some(ref right_node) => {
[INFO] [stderr] 336 | |                     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 337 | |                     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 345 | |                 }
[INFO] [stderr] 346 | |             }
[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] 334 |             if let Some(ref right_node) = self.right {
[INFO] [stderr] 335 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 336 |     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] 337 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 338 |     //while result.len() > 0 {
[INFO] [stderr] 339 |     output.append(result);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Tree<T>`
[INFO] [stderr]    --> src/lib.rs:370:5
[INFO] [stderr]     |
[INFO] [stderr] 370 | /     pub fn new() -> Self {
[INFO] [stderr] 371 | |         Tree::<T> {
[INFO] [stderr] 372 | |             root: None,
[INFO] [stderr] 373 | |         }
[INFO] [stderr] 374 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 101 | #[derive(Default)]
[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/lib.rs:225:17
[INFO] [stderr]     |
[INFO] [stderr] 225 | /                 match self.left {
[INFO] [stderr] 226 | |                     Some(ref left_node) => {
[INFO] [stderr] 227 | |                         //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 228 | |                         let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 241 | |                     }
[INFO] [stderr] 242 | |                 }
[INFO] [stderr]     | |_________________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 225 |                 if let Some(ref left_node) = self.left {
[INFO] [stderr] 226 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 227 |     let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] 228 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 229 | 
[INFO] [stderr] 230 |     output.append(result);
[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/lib.rs:244:17
[INFO] [stderr]     |
[INFO] [stderr] 244 | /                 match self.right {
[INFO] [stderr] 245 | |                     Some(ref right_node) => {
[INFO] [stderr] 246 | |                         //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 247 | |                         let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 255 | |                     }
[INFO] [stderr] 256 | |                 }
[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] 244 |                 if let Some(ref right_node) = self.right {
[INFO] [stderr] 245 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 246 |     let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] 247 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 248 |     //while result.len() > 0 {
[INFO] [stderr] 249 |     output.append(result);
[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/lib.rs:273:9
[INFO] [stderr]     |
[INFO] [stderr] 273 | /         match self.left {
[INFO] [stderr] 274 | |             Some(ref left_node) => {
[INFO] [stderr] 275 | |                 //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 276 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 286 | |             }
[INFO] [stderr] 287 | |         }
[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] 273 |         if let Some(ref left_node) = self.left {
[INFO] [stderr] 274 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 275 | 
[INFO] [stderr] 276 |     let mut result : &mut Vec<&'a T> = &mut left_node.inorder();
[INFO] [stderr] 277 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 278 | 
[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/lib.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 | /         match self.right {
[INFO] [stderr] 294 | |             Some(ref right_node) => {
[INFO] [stderr] 295 | |                 //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 296 | |                 let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 304 | |             }
[INFO] [stderr] 305 | |         }
[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] 293 |         if let Some(ref right_node) = self.right {
[INFO] [stderr] 294 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 295 |     let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] 296 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 297 |     //while result.len() > 0 {
[INFO] [stderr] 298 |     output.append(result);
[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/lib.rs:315:13
[INFO] [stderr]     |
[INFO] [stderr] 315 | /             match self.left {
[INFO] [stderr] 316 | |                 Some(ref left_node) => {
[INFO] [stderr] 317 | |                     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 318 | |                     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 331 | |                 }
[INFO] [stderr] 332 | |             }
[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] 315 |             if let Some(ref left_node) = self.left {
[INFO] [stderr] 316 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 317 |     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] 318 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 319 | 
[INFO] [stderr] 320 |     output.append(result);
[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/lib.rs:334:13
[INFO] [stderr]     |
[INFO] [stderr] 334 | /             match self.right {
[INFO] [stderr] 335 | |                 Some(ref right_node) => {
[INFO] [stderr] 336 | |                     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 337 | |                     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 345 | |                 }
[INFO] [stderr] 346 | |             }
[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] 334 |             if let Some(ref right_node) = self.right {
[INFO] [stderr] 335 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 336 |     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] 337 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 338 |     //while result.len() > 0 {
[INFO] [stderr] 339 |     output.append(result);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Tree<T>`
[INFO] [stderr]    --> src/lib.rs:370:5
[INFO] [stderr]     |
[INFO] [stderr] 370 | /     pub fn new() -> Self {
[INFO] [stderr] 371 | |         Tree::<T> {
[INFO] [stderr] 372 | |             root: None,
[INFO] [stderr] 373 | |         }
[INFO] [stderr] 374 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 101 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/main.rs:120:29
[INFO] [stderr]     |
[INFO] [stderr] 120 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/main.rs:126:29
[INFO] [stderr]     |
[INFO] [stderr] 126 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:141:29
[INFO] [stderr]     |
[INFO] [stderr] 141 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:147:29
[INFO] [stderr]     |
[INFO] [stderr] 147 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |                     return false
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:171:33
[INFO] [stderr]     |
[INFO] [stderr] 171 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:178:33
[INFO] [stderr]     |
[INFO] [stderr] 178 |                                 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/main.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:200:33
[INFO] [stderr]     |
[INFO] [stderr] 200 |                                 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/main.rs:208:25
[INFO] [stderr]     |
[INFO] [stderr] 208 |                         return true
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 |                 return true
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:395:21
[INFO] [stderr]     |
[INFO] [stderr] 395 |                     return false;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:436:17
[INFO] [stderr]     |
[INFO] [stderr] 436 |                 return false
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:447:21
[INFO] [stderr]     |
[INFO] [stderr] 447 |                     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/main.rs:120:29
[INFO] [stderr]     |
[INFO] [stderr] 120 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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/main.rs:126:29
[INFO] [stderr]     |
[INFO] [stderr] 126 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:141:29
[INFO] [stderr]     |
[INFO] [stderr] 141 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:147:29
[INFO] [stderr]     |
[INFO] [stderr] 147 |                             return true
[INFO] [stderr]     |                             ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:155:21
[INFO] [stderr]     |
[INFO] [stderr] 155 |                     return false
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:171:33
[INFO] [stderr]     |
[INFO] [stderr] 171 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:178:33
[INFO] [stderr]     |
[INFO] [stderr] 178 |                                 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/main.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |                                 return false
[INFO] [stderr]     |                                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:200:33
[INFO] [stderr]     |
[INFO] [stderr] 200 |                                 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/main.rs:208:25
[INFO] [stderr]     |
[INFO] [stderr] 208 |                         return true
[INFO] [stderr]     |                         ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 |                 return true
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: remove `return` as shown: `true`
[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:395:21
[INFO] [stderr]     |
[INFO] [stderr] 395 |                     return false;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:436:17
[INFO] [stderr]     |
[INFO] [stderr] 436 |                 return false
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: remove `return` as shown: `false`
[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:447:21
[INFO] [stderr]     |
[INFO] [stderr] 447 |                     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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/main.rs:220:17
[INFO] [stderr]     |
[INFO] [stderr] 220 | /                 match self.left {
[INFO] [stderr] 221 | |                     Some(ref left_node) => {
[INFO] [stderr] 222 | |                         //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 223 | |                         let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 236 | |                     }
[INFO] [stderr] 237 | |                 }
[INFO] [stderr]     | |_________________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 220 |                 if let Some(ref left_node) = self.left {
[INFO] [stderr] 221 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 222 |     let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] 223 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 224 | 
[INFO] [stderr] 225 |     output.append(result);
[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/main.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 | /                 match self.right {
[INFO] [stderr] 240 | |                     Some(ref right_node) => {
[INFO] [stderr] 241 | |                         //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 242 | |                         let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 250 | |                     }
[INFO] [stderr] 251 | |                 }
[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] 239 |                 if let Some(ref right_node) = self.right {
[INFO] [stderr] 240 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 241 |     let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] 242 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 243 |     //while result.len() > 0 {
[INFO] [stderr] 244 |     output.append(result);
[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/main.rs:268:9
[INFO] [stderr]     |
[INFO] [stderr] 268 | /         match self.left {
[INFO] [stderr] 269 | |             Some(ref left_node) => {
[INFO] [stderr] 270 | |                 //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 271 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 281 | |             }
[INFO] [stderr] 282 | |         }
[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] 268 |         if let Some(ref left_node) = self.left {
[INFO] [stderr] 269 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 270 | 
[INFO] [stderr] 271 |     let mut result : &mut Vec<&'a T> = &mut left_node.inorder();
[INFO] [stderr] 272 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 273 | 
[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/main.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 | /         match self.right {
[INFO] [stderr] 289 | |             Some(ref right_node) => {
[INFO] [stderr] 290 | |                 //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 291 | |                 let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 299 | |             }
[INFO] [stderr] 300 | |         }
[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] 288 |         if let Some(ref right_node) = self.right {
[INFO] [stderr] 289 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 290 |     let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] 291 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 292 |     //while result.len() > 0 {
[INFO] [stderr] 293 |     output.append(result);
[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/main.rs:310:13
[INFO] [stderr]     |
[INFO] [stderr] 310 | /             match self.left {
[INFO] [stderr] 311 | |                 Some(ref left_node) => {
[INFO] [stderr] 312 | |                     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 313 | |                     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 326 | |                 }
[INFO] [stderr] 327 | |             }
[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] 310 |             if let Some(ref left_node) = self.left {
[INFO] [stderr] 311 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 312 |     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] 313 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 314 | 
[INFO] [stderr] 315 |     output.append(result);
[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/main.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 | /             match self.right {
[INFO] [stderr] 330 | |                 Some(ref right_node) => {
[INFO] [stderr] 331 | |                     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 332 | |                     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 340 | |                 }
[INFO] [stderr] 341 | |             }
[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] 329 |             if let Some(ref right_node) = self.right {
[INFO] [stderr] 330 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 331 |     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] 332 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 333 |     //while result.len() > 0 {
[INFO] [stderr] 334 |     output.append(result);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Tree<T>`
[INFO] [stderr]    --> src/main.rs:365:5
[INFO] [stderr]     |
[INFO] [stderr] 365 | /     pub fn new() -> Self {
[INFO] [stderr] 366 | |         Tree::<T> {
[INFO] [stderr] 367 | |             root: None,
[INFO] [stderr] 368 | |         }
[INFO] [stderr] 369 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 96  | #[derive(Default)]
[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/main.rs:220:17
[INFO] [stderr]     |
[INFO] [stderr] 220 | /                 match self.left {
[INFO] [stderr] 221 | |                     Some(ref left_node) => {
[INFO] [stderr] 222 | |                         //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 223 | |                         let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 236 | |                     }
[INFO] [stderr] 237 | |                 }
[INFO] [stderr]     | |_________________^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 220 |                 if let Some(ref left_node) = self.left {
[INFO] [stderr] 221 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 222 |     let mut result : &mut Vec<&'a T> = &mut left_node.preorder();
[INFO] [stderr] 223 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 224 | 
[INFO] [stderr] 225 |     output.append(result);
[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/main.rs:239:17
[INFO] [stderr]     |
[INFO] [stderr] 239 | /                 match self.right {
[INFO] [stderr] 240 | |                     Some(ref right_node) => {
[INFO] [stderr] 241 | |                         //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 242 | |                         let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 250 | |                     }
[INFO] [stderr] 251 | |                 }
[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] 239 |                 if let Some(ref right_node) = self.right {
[INFO] [stderr] 240 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 241 |     let mut result : &mut Vec<&'a T> = &mut right_node.preorder();
[INFO] [stderr] 242 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 243 |     //while result.len() > 0 {
[INFO] [stderr] 244 |     output.append(result);
[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/main.rs:268:9
[INFO] [stderr]     |
[INFO] [stderr] 268 | /         match self.left {
[INFO] [stderr] 269 | |             Some(ref left_node) => {
[INFO] [stderr] 270 | |                 //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 271 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 281 | |             }
[INFO] [stderr] 282 | |         }
[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] 268 |         if let Some(ref left_node) = self.left {
[INFO] [stderr] 269 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 270 | 
[INFO] [stderr] 271 |     let mut result : &mut Vec<&'a T> = &mut left_node.inorder();
[INFO] [stderr] 272 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 273 | 
[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/main.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 | /         match self.right {
[INFO] [stderr] 289 | |             Some(ref right_node) => {
[INFO] [stderr] 290 | |                 //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 291 | |                 let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 299 | |             }
[INFO] [stderr] 300 | |         }
[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] 288 |         if let Some(ref right_node) = self.right {
[INFO] [stderr] 289 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 290 |     let mut result : &mut Vec<&'a T> = &mut right_node.inorder();
[INFO] [stderr] 291 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 292 |     //while result.len() > 0 {
[INFO] [stderr] 293 |     output.append(result);
[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/main.rs:310:13
[INFO] [stderr]     |
[INFO] [stderr] 310 | /             match self.left {
[INFO] [stderr] 311 | |                 Some(ref left_node) => {
[INFO] [stderr] 312 | |                     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 313 | |                     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 326 | |                 }
[INFO] [stderr] 327 | |             }
[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] 310 |             if let Some(ref left_node) = self.left {
[INFO] [stderr] 311 |     //println!("\nOutput vec before pushing in the left keys is: {:?}\n", output);
[INFO] [stderr] 312 |     let mut result : &mut Vec<&'a T> = &mut left_node.postorder();
[INFO] [stderr] 313 |     //println!("Left Keys is : {:?}",result);
[INFO] [stderr] 314 | 
[INFO] [stderr] 315 |     output.append(result);
[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/main.rs:329:13
[INFO] [stderr]     |
[INFO] [stderr] 329 | /             match self.right {
[INFO] [stderr] 330 | |                 Some(ref right_node) => {
[INFO] [stderr] 331 | |                     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 332 | |                     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] ...   |
[INFO] [stderr] 340 | |                 }
[INFO] [stderr] 341 | |             }
[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] 329 |             if let Some(ref right_node) = self.right {
[INFO] [stderr] 330 |     //println!("\nOutput vec before pushing in the right keys is: {:?}\n", output);
[INFO] [stderr] 331 |     let mut result : &mut Vec<&'a T> = &mut right_node.postorder();
[INFO] [stderr] 332 |     //println!("Right keys is {:?}",result);
[INFO] [stderr] 333 |     //while result.len() > 0 {
[INFO] [stderr] 334 |     output.append(result);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `Tree<T>`
[INFO] [stderr]    --> src/main.rs:365:5
[INFO] [stderr]     |
[INFO] [stderr] 365 | /     pub fn new() -> Self {
[INFO] [stderr] 366 | |         Tree::<T> {
[INFO] [stderr] 367 | |             root: None,
[INFO] [stderr] 368 | |         }
[INFO] [stderr] 369 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 96  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "ffa87527137156130c3734e173b287d062f92c2a872b820833fcd6aaf3aa2fd9"`
[INFO] running `"docker" "rm" "-f" "ffa87527137156130c3734e173b287d062f92c2a872b820833fcd6aaf3aa2fd9"`
[INFO] [stdout] ffa87527137156130c3734e173b287d062f92c2a872b820833fcd6aaf3aa2fd9