[INFO] updating cached repository Wyverald/basic-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Wyverald/basic-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Wyverald/basic-rs" "work/ex/clippy-test-run/sources/stable/gh/Wyverald/basic-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Wyverald/basic-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Wyverald/basic-rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Wyverald/basic-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Wyverald/basic-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d253072f7381a7a528cb645a91ac06f76a13bb95
[INFO] sha for GitHub repo Wyverald/basic-rs: d253072f7381a7a528cb645a91ac06f76a13bb95
[INFO] validating manifest of Wyverald/basic-rs 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 Wyverald/basic-rs 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 Wyverald/basic-rs
[INFO] finished frobbing Wyverald/basic-rs
[INFO] frobbed toml for Wyverald/basic-rs written to work/ex/clippy-test-run/sources/stable/gh/Wyverald/basic-rs/Cargo.toml
[INFO] started frobbing Wyverald/basic-rs
[INFO] finished frobbing Wyverald/basic-rs
[INFO] frobbed toml for Wyverald/basic-rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Wyverald/basic-rs/Cargo.toml
[INFO] crate Wyverald/basic-rs 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 Wyverald/basic-rs against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Wyverald/basic-rs:/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 -Dclippy::into_iter_on_array" "-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] 1c52a631526adf975e8a2051afcd4c30482f9ff19f11e12ff666f006785b22f4
[INFO] running `"docker" "start" "-a" "1c52a631526adf975e8a2051afcd4c30482f9ff19f11e12ff666f006785b22f4"`
[INFO] [stderr]     Checking basic-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/interpreter.rs:41:21
[INFO] [stderr]    |
[INFO] [stderr] 41 |                     println!("");
[INFO] [stderr]    |                     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/interpreter.rs:51:29
[INFO] [stderr]    |
[INFO] [stderr] 51 |                             println!("");
[INFO] [stderr]    |                             ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]    --> src/interpreter.rs:235:37
[INFO] [stderr]     |
[INFO] [stderr] 235 |                                     println!("");
[INFO] [stderr]     |                                     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/interpreter.rs:435:13
[INFO] [stderr]     |
[INFO] [stderr] 435 |             ast: ast,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `ast`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lexer/token.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             content: content,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `content`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lexer/token.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |             position: position,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `position`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:142:25
[INFO] [stderr]     |
[INFO] [stderr] 142 |                         follow_type: follow_type,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `follow_type`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:202:21
[INFO] [stderr]     |
[INFO] [stderr] 202 |                     condition: condition,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `condition`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:211:53
[INFO] [stderr]     |
[INFO] [stderr] 211 |                         let variable = Identifier { name: name, position: token.position };
[INFO] [stderr]     |                                                     ^^^^^^^^^^ help: replace it with: `name`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |                     variable: variable,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^ help: replace it with: `variable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:245:21
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     from: from,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: replace it with: `from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:246:21
[INFO] [stderr]     |
[INFO] [stderr] 246 |                     to: to,
[INFO] [stderr]     |                     ^^^^^^ help: replace it with: `to`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:247:21
[INFO] [stderr]     |
[INFO] [stderr] 247 |                     step: step,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:410:25
[INFO] [stderr]     |
[INFO] [stderr] 410 |                         arguments: arguments,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `arguments`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/interpreter.rs:41:21
[INFO] [stderr]    |
[INFO] [stderr] 41 |                     println!("");
[INFO] [stderr]    |                     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::println_empty_string)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]   --> src/interpreter.rs:51:29
[INFO] [stderr]    |
[INFO] [stderr] 51 |                             println!("");
[INFO] [stderr]    |                             ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: using `println!("")`
[INFO] [stderr]    --> src/interpreter.rs:235:37
[INFO] [stderr]     |
[INFO] [stderr] 235 |                                     println!("");
[INFO] [stderr]     |                                     ^^^^^^^^^^^^ help: replace it with: `println!()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#println_empty_string
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/interpreter.rs:435:13
[INFO] [stderr]     |
[INFO] [stderr] 435 |             ast: ast,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `ast`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lexer/token.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             content: content,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: replace it with: `content`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/lexer/token.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |             position: position,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `position`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:142:25
[INFO] [stderr]     |
[INFO] [stderr] 142 |                         follow_type: follow_type,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `follow_type`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:202:21
[INFO] [stderr]     |
[INFO] [stderr] 202 |                     condition: condition,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `condition`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:211:53
[INFO] [stderr]     |
[INFO] [stderr] 211 |                         let variable = Identifier { name: name, position: token.position };
[INFO] [stderr]     |                                                     ^^^^^^^^^^ help: replace it with: `name`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:244:21
[INFO] [stderr]     |
[INFO] [stderr] 244 |                     variable: variable,
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^ help: replace it with: `variable`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:245:21
[INFO] [stderr]     |
[INFO] [stderr] 245 |                     from: from,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: replace it with: `from`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:246:21
[INFO] [stderr]     |
[INFO] [stderr] 246 |                     to: to,
[INFO] [stderr]     |                     ^^^^^^ help: replace it with: `to`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:247:21
[INFO] [stderr]     |
[INFO] [stderr] 247 |                     step: step,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: replace it with: `step`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/parser/mod.rs:410:25
[INFO] [stderr]     |
[INFO] [stderr] 410 |                         arguments: arguments,
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `arguments`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/interpreter.rs:35:53
[INFO] [stderr]    |
[INFO] [stderr] 35 |             &Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/interpreter.rs:35:68
[INFO] [stderr]    |
[INFO] [stderr] 35 |             &Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr]    |                                                                    ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Try with `Def { name: ref identifier, .. }`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:114:55
[INFO] [stderr]     |
[INFO] [stderr] 114 |             &Statement::For { ref variable, ref from, to: _, step: _ } => {
[INFO] [stderr]     |                                                       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:114:62
[INFO] [stderr]     |
[INFO] [stderr] 114 |             &Statement::For { ref variable, ref from, to: _, step: _ } => {
[INFO] [stderr]     |                                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `For { ref variable, ref from, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:120:55
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 if let Statement::For { ref variable, from: _, ref to, ref step } =
[INFO] [stderr]     |                                                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `For { ref variable, ref to, ref step, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:252:46
[INFO] [stderr]     |
[INFO] [stderr] 252 |                             Statement::Def { name: _, ref parameters, ref body } => {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `Def { ref parameters, ref body, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lexer/mod.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return char;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `char`
[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/lexer/mod.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 return Ok(Token::new(content, cur_position));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(content, cur_position))`
[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/lexer/mod.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 return Ok(Token::new(TokenContent::keyword_or_identifier(s), cur_position));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(TokenContent::keyword_or_identifier(s), cur_position))`
[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/lexer/mod.rs:135:17
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 return Ok(Token::new(content, cur_position));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(content, cur_position))`
[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/lexer/mod.rs:153:17
[INFO] [stderr]     |
[INFO] [stderr] 153 |                 return Ok(Token::new(TokenContent::StringLiteral(s), cur_position));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(TokenContent::StringLiteral(s), cur_position))`
[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/lexer/mod.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 return self.make_error(ErrorKind::UnexpectedCharacter)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.make_error(ErrorKind::UnexpectedCharacter)`
[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 matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/parser/mod.rs:92:17
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 from: _,
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/parser/mod.rs:93:17
[INFO] [stderr]    |
[INFO] [stderr] 93 |                 to: _,
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/parser/mod.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |                 step: _,
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Try with `For { variable: ref identifier, .. }`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser/mod.rs:273:18
[INFO] [stderr]     |
[INFO] [stderr] 273 |             _ => return Err(Error::unexpected_token(token, "expected statement")),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(Error::unexpected_token(token, "expected statement"))`
[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 matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/interpreter.rs:35:53
[INFO] [stderr]    |
[INFO] [stderr] 35 |             &Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unneeded_field_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/interpreter.rs:35:68
[INFO] [stderr]    |
[INFO] [stderr] 35 |             &Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr]    |                                                                    ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Try with `Def { name: ref identifier, .. }`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:114:55
[INFO] [stderr]     |
[INFO] [stderr] 114 |             &Statement::For { ref variable, ref from, to: _, step: _ } => {
[INFO] [stderr]     |                                                       ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:114:62
[INFO] [stderr]     |
[INFO] [stderr] 114 |             &Statement::For { ref variable, ref from, to: _, step: _ } => {
[INFO] [stderr]     |                                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `For { ref variable, ref from, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:120:55
[INFO] [stderr]     |
[INFO] [stderr] 120 |                 if let Statement::For { ref variable, from: _, ref to, ref step } =
[INFO] [stderr]     |                                                       ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `For { ref variable, ref to, ref step, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]    --> src/interpreter.rs:252:46
[INFO] [stderr]     |
[INFO] [stderr] 252 |                             Statement::Def { name: _, ref parameters, ref body } => {
[INFO] [stderr]     |                                              ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: Try with `Def { ref parameters, ref body, .. }`
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/lexer/mod.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         return char;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `char`
[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/lexer/mod.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 return Ok(Token::new(content, cur_position));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(content, cur_position))`
[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/lexer/mod.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 return Ok(Token::new(TokenContent::keyword_or_identifier(s), cur_position));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(TokenContent::keyword_or_identifier(s), cur_position))`
[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/lexer/mod.rs:135:17
[INFO] [stderr]     |
[INFO] [stderr] 135 |                 return Ok(Token::new(content, cur_position));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(content, cur_position))`
[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/lexer/mod.rs:153:17
[INFO] [stderr]     |
[INFO] [stderr] 153 |                 return Ok(Token::new(TokenContent::StringLiteral(s), cur_position));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Ok(Token::new(TokenContent::StringLiteral(s), cur_position))`
[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/lexer/mod.rs:158:17
[INFO] [stderr]     |
[INFO] [stderr] 158 |                 return self.make_error(ErrorKind::UnexpectedCharacter)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.make_error(ErrorKind::UnexpectedCharacter)`
[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 matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/parser/mod.rs:92:17
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 from: _,
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/parser/mod.rs:93:17
[INFO] [stderr]    |
[INFO] [stderr] 93 |                 to: _,
[INFO] [stderr]    |                 ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: You matched a field with a wildcard pattern. Consider using `..` instead
[INFO] [stderr]   --> src/parser/mod.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |                 step: _,
[INFO] [stderr]    |                 ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: Try with `For { variable: ref identifier, .. }`
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unneeded_field_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser/mod.rs:273:18
[INFO] [stderr]     |
[INFO] [stderr] 273 |             _ => return Err(Error::unexpected_token(token, "expected statement")),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(Error::unexpected_token(token, "expected statement"))`
[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: method is never used: `reset`
[INFO] [stderr]    --> src/interpreter.rs:440:5
[INFO] [stderr]     |
[INFO] [stderr] 440 |     pub fn reset(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: large size difference between variants
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | /     For {
[INFO] [stderr] 31 | |         variable: Identifier,
[INFO] [stderr] 32 | |         from: Expression,
[INFO] [stderr] 33 | |         to: Expression,
[INFO] [stderr] 34 | |         step: Option<Expression>,
[INFO] [stderr] 35 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::large_enum_variant)] on by default
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | /     For {
[INFO] [stderr] 31 | |         variable: Identifier,
[INFO] [stderr] 32 | |         from: Expression,
[INFO] [stderr] 33 | |         to: Expression,
[INFO] [stderr] 34 | |         step: Option<Expression>,
[INFO] [stderr] 35 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reset`
[INFO] [stderr]    --> src/interpreter.rs:440:5
[INFO] [stderr]     |
[INFO] [stderr] 440 |     pub fn reset(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:34:9
[INFO] [stderr]     |
[INFO] [stderr] 34  | /         match statement {
[INFO] [stderr] 35  | |             &Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr] 36  | |                 self.fns.insert(identifier.name.clone(), self.pc);
[INFO] [stderr] 37  | |                 Ok(ExecutionResult::NextStatement)
[INFO] [stderr] ...   |
[INFO] [stderr] 144 | |             },
[INFO] [stderr] 145 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 34  |         match *statement {
[INFO] [stderr] 35  |             Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr] 36  |                 self.fns.insert(identifier.name.clone(), self.pc);
[INFO] [stderr] 37  |                 Ok(ExecutionResult::NextStatement)
[INFO] [stderr] 38  |             },
[INFO] [stderr] 39  |             Statement::Print(ref print_exprs) => {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/interpreter.rs:77:21
[INFO] [stderr]    |
[INFO] [stderr] 77 | /                     match else_branch {
[INFO] [stderr] 78 | |                         &Some(ref stmt) => self.execute(ast, stmt.as_ref()),
[INFO] [stderr] 79 | |                         &None => Ok(ExecutionResult::NextStatement),
[INFO] [stderr] 80 | |                     }
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 77 |                     match *else_branch {
[INFO] [stderr] 78 |                         Some(ref stmt) => self.execute(ast, stmt.as_ref()),
[INFO] [stderr] 79 |                         None => Ok(ExecutionResult::NextStatement),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: large size difference between variants
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | /     For {
[INFO] [stderr] 31 | |         variable: Identifier,
[INFO] [stderr] 32 | |         from: Expression,
[INFO] [stderr] 33 | |         to: Expression,
[INFO] [stderr] 34 | |         step: Option<Expression>,
[INFO] [stderr] 35 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::large_enum_variant)] on by default
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]   --> src/ast.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | /     For {
[INFO] [stderr] 31 | |         variable: Identifier,
[INFO] [stderr] 32 | |         from: Expression,
[INFO] [stderr] 33 | |         to: Expression,
[INFO] [stderr] 34 | |         step: Option<Expression>,
[INFO] [stderr] 35 | |     },
[INFO] [stderr]    | |_____^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:124:40
[INFO] [stderr]     |
[INFO] [stderr] 124 |                           let step_val = match step {
[INFO] [stderr]     |  ________________________________________^
[INFO] [stderr] 125 | |                             &Some(ref step_expr) => self.evaluate(ast, step_expr)?,
[INFO] [stderr] 126 | |                             &None => Value::Integer(1),
[INFO] [stderr] 127 | |                         };
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 124 |                         let step_val = match *step {
[INFO] [stderr] 125 |                             Some(ref step_expr) => self.evaluate(ast, step_expr)?,
[INFO] [stderr] 126 |                             None => Value::Integer(1),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 | /         match expr {
[INFO] [stderr] 150 | |             &Expression::Binary(bin_op, ref expr1, ref expr2) => {
[INFO] [stderr] 151 | |                 let val1 = self.evaluate(ast, expr1)?;
[INFO] [stderr] 152 | |                 let val2 = self.evaluate(ast, expr2)?;
[INFO] [stderr] ...   |
[INFO] [stderr] 270 | |             }
[INFO] [stderr] 271 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 149 |         match *expr {
[INFO] [stderr] 150 |             Expression::Binary(bin_op, ref expr1, ref expr2) => {
[INFO] [stderr] 151 |                 let val1 = self.evaluate(ast, expr1)?;
[INFO] [stderr] 152 |                 let val2 = self.evaluate(ast, expr2)?;
[INFO] [stderr] 153 |                 Ok(match bin_op {
[INFO] [stderr] 154 |                     BinaryOperator::Divide => val1 / val2,
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:34:9
[INFO] [stderr]     |
[INFO] [stderr] 34  | /         match statement {
[INFO] [stderr] 35  | |             &Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr] 36  | |                 self.fns.insert(identifier.name.clone(), self.pc);
[INFO] [stderr] 37  | |                 Ok(ExecutionResult::NextStatement)
[INFO] [stderr] ...   |
[INFO] [stderr] 144 | |             },
[INFO] [stderr] 145 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 34  |         match *statement {
[INFO] [stderr] 35  |             Statement::Def { name: ref identifier, parameters: _, body: _ } => {
[INFO] [stderr] 36  |                 self.fns.insert(identifier.name.clone(), self.pc);
[INFO] [stderr] 37  |                 Ok(ExecutionResult::NextStatement)
[INFO] [stderr] 38  |             },
[INFO] [stderr] 39  |             Statement::Print(ref print_exprs) => {
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 | /         match self {
[INFO] [stderr] 289 | |             &Value::Integer(i) => Some(i),
[INFO] [stderr] 290 | |             _ => None,
[INFO] [stderr] 291 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 288 |         match *self {
[INFO] [stderr] 289 |             Value::Integer(i) => Some(i),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/interpreter.rs:77:21
[INFO] [stderr]    |
[INFO] [stderr] 77 | /                     match else_branch {
[INFO] [stderr] 78 | |                         &Some(ref stmt) => self.execute(ast, stmt.as_ref()),
[INFO] [stderr] 79 | |                         &None => Ok(ExecutionResult::NextStatement),
[INFO] [stderr] 80 | |                     }
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]    |
[INFO] [stderr] 77 |                     match *else_branch {
[INFO] [stderr] 78 |                         Some(ref stmt) => self.execute(ast, stmt.as_ref()),
[INFO] [stderr] 79 |                         None => Ok(ExecutionResult::NextStatement),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:295:9
[INFO] [stderr]     |
[INFO] [stderr] 295 | /         match self {
[INFO] [stderr] 296 | |             &Value::Integer(i) => Some(i as f64),
[INFO] [stderr] 297 | |             &Value::Float(f) => Some(f),
[INFO] [stderr] 298 | |             _ => None,
[INFO] [stderr] 299 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 295 |         match *self {
[INFO] [stderr] 296 |             Value::Integer(i) => Some(i as f64),
[INFO] [stderr] 297 |             Value::Float(f) => Some(f),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/interpreter.rs:296:40
[INFO] [stderr]     |
[INFO] [stderr] 296 |             &Value::Integer(i) => Some(i as f64),
[INFO] [stderr]     |                                        ^^^^^^^^ help: try: `f64::from(i)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:124:40
[INFO] [stderr]     |
[INFO] [stderr] 124 |                           let step_val = match step {
[INFO] [stderr]     |  ________________________________________^
[INFO] [stderr] 125 | |                             &Some(ref step_expr) => self.evaluate(ast, step_expr)?,
[INFO] [stderr] 126 | |                             &None => Value::Integer(1),
[INFO] [stderr] 127 | |                         };
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 124 |                         let step_val = match *step {
[INFO] [stderr] 125 |                             Some(ref step_expr) => self.evaluate(ast, step_expr)?,
[INFO] [stderr] 126 |                             None => Value::Integer(1),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:407:9
[INFO] [stderr]     |
[INFO] [stderr] 407 | /         if let &mut Value::String(ref mut s) = self {
[INFO] [stderr] 408 | |             s.push_str(&other.to_string());
[INFO] [stderr] 409 | |         } else {
[INFO] [stderr] 410 | |             *self = self.clone() + other;
[INFO] [stderr] 411 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 407 |         if let Value::String(ref mut s) = *self {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 | /         match expr {
[INFO] [stderr] 150 | |             &Expression::Binary(bin_op, ref expr1, ref expr2) => {
[INFO] [stderr] 151 | |                 let val1 = self.evaluate(ast, expr1)?;
[INFO] [stderr] 152 | |                 let val2 = self.evaluate(ast, expr2)?;
[INFO] [stderr] ...   |
[INFO] [stderr] 270 | |             }
[INFO] [stderr] 271 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 149 |         match *expr {
[INFO] [stderr] 150 |             Expression::Binary(bin_op, ref expr1, ref expr2) => {
[INFO] [stderr] 151 |                 let val1 = self.evaluate(ast, expr1)?;
[INFO] [stderr] 152 |                 let val2 = self.evaluate(ast, expr2)?;
[INFO] [stderr] 153 |                 Ok(match bin_op {
[INFO] [stderr] 154 |                     BinaryOperator::Divide => val1 / val2,
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:417:9
[INFO] [stderr]     |
[INFO] [stderr] 417 | /         match self {
[INFO] [stderr] 418 | |             &Value::Integer(i) => write!(f, " {} ", i),
[INFO] [stderr] 419 | |             &Value::Float(fl) => write!(f, " {} ", fl),
[INFO] [stderr] 420 | |             &Value::String(ref s) => write!(f, "{}", s),
[INFO] [stderr] 421 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 417 |         match *self {
[INFO] [stderr] 418 |             Value::Integer(i) => write!(f, " {} ", i),
[INFO] [stderr] 419 |             Value::Float(fl) => write!(f, " {} ", fl),
[INFO] [stderr] 420 |             Value::String(ref s) => write!(f, "{}", s),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/interpreter.rs:451:13
[INFO] [stderr]     |
[INFO] [stderr] 451 |         let ref statement = self.ast.statements[self.environment.pc.0];
[INFO] [stderr]     |         ----^^^^^^^^^^^^^---------------------------------------------- help: try: `let statement = &self.ast.statements[self.environment.pc.0];`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:288:9
[INFO] [stderr]     |
[INFO] [stderr] 288 | /         match self {
[INFO] [stderr] 289 | |             &Value::Integer(i) => Some(i),
[INFO] [stderr] 290 | |             _ => None,
[INFO] [stderr] 291 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 288 |         match *self {
[INFO] [stderr] 289 |             Value::Integer(i) => Some(i),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:295:9
[INFO] [stderr]     |
[INFO] [stderr] 295 | /         match self {
[INFO] [stderr] 296 | |             &Value::Integer(i) => Some(i as f64),
[INFO] [stderr] 297 | |             &Value::Float(f) => Some(f),
[INFO] [stderr] 298 | |             _ => None,
[INFO] [stderr] 299 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 295 |         match *self {
[INFO] [stderr] 296 |             Value::Integer(i) => Some(i as f64),
[INFO] [stderr] 297 |             Value::Float(f) => Some(f),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change
[INFO] [stderr]    --> src/interpreter.rs:296:40
[INFO] [stderr]     |
[INFO] [stderr] 296 |             &Value::Integer(i) => Some(i as f64),
[INFO] [stderr]     |                                        ^^^^^^^^ help: try: `f64::from(i)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:407:9
[INFO] [stderr]     |
[INFO] [stderr] 407 | /         if let &mut Value::String(ref mut s) = self {
[INFO] [stderr] 408 | |             s.push_str(&other.to_string());
[INFO] [stderr] 409 | |         } else {
[INFO] [stderr] 410 | |             *self = self.clone() + other;
[INFO] [stderr] 411 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 407 |         if let Value::String(ref mut s) = *self {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^   ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/interpreter.rs:417:9
[INFO] [stderr]     |
[INFO] [stderr] 417 | /         match self {
[INFO] [stderr] 418 | |             &Value::Integer(i) => write!(f, " {} ", i),
[INFO] [stderr] 419 | |             &Value::Float(fl) => write!(f, " {} ", fl),
[INFO] [stderr] 420 | |             &Value::String(ref s) => write!(f, "{}", s),
[INFO] [stderr] 421 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 417 |         match *self {
[INFO] [stderr] 418 |             Value::Integer(i) => write!(f, " {} ", i),
[INFO] [stderr] 419 |             Value::Float(fl) => write!(f, " {} ", fl),
[INFO] [stderr] 420 |             Value::String(ref s) => write!(f, "{}", s),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `ref` on an entire `let` pattern is discouraged, take a reference with `&` instead
[INFO] [stderr]    --> src/interpreter.rs:451:13
[INFO] [stderr]     |
[INFO] [stderr] 451 |         let ref statement = self.ast.statements[self.environment.pc.0];
[INFO] [stderr]     |         ----^^^^^^^^^^^^^---------------------------------------------- help: try: `let statement = &self.ast.statements[self.environment.pc.0];`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::toplevel_ref_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#toplevel_ref_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this block may be rewritten with the `?` operator
[INFO] [stderr]   --> src/lexer/mod.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 | /         if self.cur_line.is_none() {
[INFO] [stderr] 43 | |             return None;
[INFO] [stderr] 44 | |         }
[INFO] [stderr]    | |_________^ help: replace_it_with: `self.cur_line?;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::question_mark)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#question_mark
[INFO] [stderr] 
[INFO] [stderr] warning: this block may be rewritten with the `?` operator
[INFO] [stderr]   --> src/lexer/mod.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 | /         if self.cur_line.is_none() {
[INFO] [stderr] 43 | |             return None;
[INFO] [stderr] 44 | |         }
[INFO] [stderr]    | |_________^ help: replace_it_with: `self.cur_line?;`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::question_mark)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#question_mark
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/parser/mod.rs:90:13
[INFO] [stderr]     |
[INFO] [stderr] 90  | /             if let &Statement::For {
[INFO] [stderr] 91  | |                 variable: ref identifier,
[INFO] [stderr] 92  | |                 from: _,
[INFO] [stderr] 93  | |                 to: _,
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |                 })
[INFO] [stderr] 100 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 90  |             if let Statement::For {
[INFO] [stderr] 91  |                 variable: ref identifier,
[INFO] [stderr] 92  |                 from: _,
[INFO] [stderr] 93  |                 to: _,
[INFO] [stderr] 94  |                 step: _,
[INFO] [stderr] 95  |             } = statement {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to both the expression and the patterns
[INFO] [stderr]    --> src/parser/mod.rs:90:13
[INFO] [stderr]     |
[INFO] [stderr] 90  | /             if let &Statement::For {
[INFO] [stderr] 91  | |                 variable: ref identifier,
[INFO] [stderr] 92  | |                 from: _,
[INFO] [stderr] 93  | |                 to: _,
[INFO] [stderr] ...   |
[INFO] [stderr] 99  | |                 })
[INFO] [stderr] 100 | |             }
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 90  |             if let Statement::For {
[INFO] [stderr] 91  |                 variable: ref identifier,
[INFO] [stderr] 92  |                 from: _,
[INFO] [stderr] 93  |                 to: _,
[INFO] [stderr] 94  |                 step: _,
[INFO] [stderr] 95  |             } = statement {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/parser/mod.rs:399:21
[INFO] [stderr]     |
[INFO] [stderr] 399 | /                     loop {
[INFO] [stderr] 400 | |                         match self.peek_token()?.content {
[INFO] [stderr] 401 | |                             TokenContent::Comma => (),
[INFO] [stderr] 402 | |                             _ => break,
[INFO] [stderr] ...   |
[INFO] [stderr] 405 | |                         arguments.push(self.parse_expression()?);
[INFO] [stderr] 406 | |                     }
[INFO] [stderr]     | |_____________________^ help: try: `while let TokenContent::Comma = self.peek_token()?.content { .. }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/parser/mod.rs:399:21
[INFO] [stderr]     |
[INFO] [stderr] 399 | /                     loop {
[INFO] [stderr] 400 | |                         match self.peek_token()?.content {
[INFO] [stderr] 401 | |                             TokenContent::Comma => (),
[INFO] [stderr] 402 | |                             _ => break,
[INFO] [stderr] ...   |
[INFO] [stderr] 405 | |                         arguments.push(self.parse_expression()?);
[INFO] [stderr] 406 | |                     }
[INFO] [stderr]     | |_____________________^ help: try: `while let TokenContent::Comma = self.peek_token()?.content { .. }`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::while_let_loop)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#while_let_loop
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "1c52a631526adf975e8a2051afcd4c30482f9ff19f11e12ff666f006785b22f4"`
[INFO] running `"docker" "rm" "-f" "1c52a631526adf975e8a2051afcd4c30482f9ff19f11e12ff666f006785b22f4"`
[INFO] [stdout] 1c52a631526adf975e8a2051afcd4c30482f9ff19f11e12ff666f006785b22f4