[INFO] updating cached repository dylanmckay/rubic
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dylanmckay/rubic
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dylanmckay/rubic" "work/ex/clippy-test-run/sources/stable/gh/dylanmckay/rubic"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/dylanmckay/rubic'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dylanmckay/rubic" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dylanmckay/rubic"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dylanmckay/rubic'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c93cc2983bbad75ea5b164958ee082541821d817
[INFO] sha for GitHub repo dylanmckay/rubic: c93cc2983bbad75ea5b164958ee082541821d817
[INFO] validating manifest of dylanmckay/rubic 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 dylanmckay/rubic 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 dylanmckay/rubic
[INFO] finished frobbing dylanmckay/rubic
[INFO] frobbed toml for dylanmckay/rubic written to work/ex/clippy-test-run/sources/stable/gh/dylanmckay/rubic/Cargo.toml
[INFO] started frobbing dylanmckay/rubic
[INFO] finished frobbing dylanmckay/rubic
[INFO] frobbed toml for dylanmckay/rubic written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/dylanmckay/rubic/Cargo.toml
[INFO] crate dylanmckay/rubic 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 dylanmckay/rubic against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/dylanmckay/rubic:/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] 11cac8744d29e6ed8f408a58feb0e520d6bf0d1dc7cf8971902671d586e2acdd
[INFO] running `"docker" "start" "-a" "11cac8744d29e6ed8f408a58feb0e520d6bf0d1dc7cf8971902671d586e2acdd"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.0
[INFO] [stderr]     Checking error-chain v0.7.1
[INFO] [stderr]     Checking rubic v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/parse/parser.rs:33:27
[INFO] [stderr]    |
[INFO] [stderr] 33 |         Ok(ast::Program { items: items })
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: replace it with: `items`
[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/parse/parser.rs:73:25
[INFO] [stderr]    |
[INFO] [stderr] 73 |         Ok(ast::Class { name: name, items: items, superclass: superclass })
[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/parse/parser.rs:73:37
[INFO] [stderr]    |
[INFO] [stderr] 73 |         Ok(ast::Class { name: name, items: items, superclass: superclass })
[INFO] [stderr]    |                                     ^^^^^^^^^^^^ help: replace it with: `items`
[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/parse/parser.rs:73:51
[INFO] [stderr]    |
[INFO] [stderr] 73 |         Ok(ast::Class { name: name, items: items, superclass: superclass })
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `superclass`
[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/parse/parser.rs:91:26
[INFO] [stderr]    |
[INFO] [stderr] 91 |         Ok(ast::Module { name: name, items: items })
[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/parse/parser.rs:91:38
[INFO] [stderr]    |
[INFO] [stderr] 91 |         Ok(ast::Module { name: name, items: items })
[INFO] [stderr]    |                                      ^^^^^^^^^^^^ help: replace it with: `items`
[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/parse/parser.rs:111:28
[INFO] [stderr]     |
[INFO] [stderr] 111 |         Ok(ast::Function { name: name, statements: statements })
[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/parse/parser.rs:111:40
[INFO] [stderr]     |
[INFO] [stderr] 111 |         Ok(ast::Function { name: name, statements: statements })
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `statements`
[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/parse/parser.rs:151:33
[INFO] [stderr]     |
[INFO] [stderr] 151 |             Ok(ast::Parameter { name: name, default: None })
[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/parse/parser.rs:186:29
[INFO] [stderr]     |
[INFO] [stderr] 186 |                             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: redundant field names in struct initialization
[INFO] [stderr]    --> src/parse/parser.rs:285:30
[INFO] [stderr]     |
[INFO] [stderr] 285 |         Ok(ast::SymbolExpr { name: name })
[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/parse/parser.rs:33:27
[INFO] [stderr]    |
[INFO] [stderr] 33 |         Ok(ast::Program { items: items })
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: replace it with: `items`
[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/parse/parser.rs:73:25
[INFO] [stderr]    |
[INFO] [stderr] 73 |         Ok(ast::Class { name: name, items: items, superclass: superclass })
[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/parse/parser.rs:73:37
[INFO] [stderr]    |
[INFO] [stderr] 73 |         Ok(ast::Class { name: name, items: items, superclass: superclass })
[INFO] [stderr]    |                                     ^^^^^^^^^^^^ help: replace it with: `items`
[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/parse/parser.rs:73:51
[INFO] [stderr]    |
[INFO] [stderr] 73 |         Ok(ast::Class { name: name, items: items, superclass: superclass })
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `superclass`
[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/parse/parser.rs:91:26
[INFO] [stderr]    |
[INFO] [stderr] 91 |         Ok(ast::Module { name: name, items: items })
[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/parse/parser.rs:91:38
[INFO] [stderr]    |
[INFO] [stderr] 91 |         Ok(ast::Module { name: name, items: items })
[INFO] [stderr]    |                                      ^^^^^^^^^^^^ help: replace it with: `items`
[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/parse/parser.rs:111:28
[INFO] [stderr]     |
[INFO] [stderr] 111 |         Ok(ast::Function { name: name, statements: statements })
[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/parse/parser.rs:111:40
[INFO] [stderr]     |
[INFO] [stderr] 111 |         Ok(ast::Function { name: name, statements: statements })
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `statements`
[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/parse/parser.rs:151:33
[INFO] [stderr]     |
[INFO] [stderr] 151 |             Ok(ast::Parameter { name: name, default: None })
[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/parse/parser.rs:186:29
[INFO] [stderr]     |
[INFO] [stderr] 186 |                             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: redundant field names in struct initialization
[INFO] [stderr]    --> src/parse/parser.rs:285:30
[INFO] [stderr]     |
[INFO] [stderr] 285 |         Ok(ast::SymbolExpr { name: name })
[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: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/parse/tokenize.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | const SYMBOLS: &'static [&'static str] = &[
[INFO] [stderr]   |                -^^^^^^^--------------- help: consider removing `'static`: `&[&'static str]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/parse/tokenize.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | const SYMBOLS: &'static [&'static str] = &[
[INFO] [stderr]   |                          -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/parse/tokenize.rs:154:16
[INFO] [stderr]     |
[INFO] [stderr] 154 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 155 | |             if self.sent_last_new_line {
[INFO] [stderr] 156 | |                 None
[INFO] [stderr] 157 | |             } else {
[INFO] [stderr] ...   |
[INFO] [stderr] 160 | |             }
[INFO] [stderr] 161 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 154 |         } else if self.sent_last_new_line {
[INFO] [stderr] 155 |     None
[INFO] [stderr] 156 | } else {
[INFO] [stderr] 157 |     self.sent_last_new_line = true;
[INFO] [stderr] 158 |     Some(Token::EndOfLine)
[INFO] [stderr] 159 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/parse/tokenize.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 | const SYMBOLS: &'static [&'static str] = &[
[INFO] [stderr]   |                -^^^^^^^--------------- help: consider removing `'static`: `&[&'static str]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]  --> src/parse/tokenize.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | const SYMBOLS: &'static [&'static str] = &[
[INFO] [stderr]   |                          -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/parse/tokenize.rs:154:16
[INFO] [stderr]     |
[INFO] [stderr] 154 |           } else {
[INFO] [stderr]     |  ________________^
[INFO] [stderr] 155 | |             if self.sent_last_new_line {
[INFO] [stderr] 156 | |                 None
[INFO] [stderr] 157 | |             } else {
[INFO] [stderr] ...   |
[INFO] [stderr] 160 | |             }
[INFO] [stderr] 161 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 154 |         } else if self.sent_last_new_line {
[INFO] [stderr] 155 |     None
[INFO] [stderr] 156 | } else {
[INFO] [stderr] 157 |     self.sent_last_new_line = true;
[INFO] [stderr] 158 |     Some(Token::EndOfLine)
[INFO] [stderr] 159 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `ast::Program`
[INFO] [stderr]    --> src/ast/mod.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 | /     pub fn new() -> Self {
[INFO] [stderr] 116 | |         Program { items: Vec::new() }
[INFO] [stderr] 117 | |     }
[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] 11  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `ast::Program`
[INFO] [stderr]    --> src/ast/mod.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 | /     pub fn new() -> Self {
[INFO] [stderr] 116 | |         Program { items: Vec::new() }
[INFO] [stderr] 117 | |     }
[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] 11  | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]   --> src/parse/parser.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 | /         let mut superclass = None;
[INFO] [stderr] 57 | |
[INFO] [stderr] 58 | |         // Check if we have a superclass specified.
[INFO] [stderr] 59 | |         if self.peek().unwrap() == Token::less_than() {
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |             superclass = Some(self.parse_path()?);
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^ help: it is more idiomatic to write: `let <mut> superclass = if self.peek().unwrap() == Token::less_than() { ..; Some(self.parse_path()?) } else { None };`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]    = note: you might not need `mut` at all
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: `if _ { .. } else { .. }` is an expression
[INFO] [stderr]   --> src/parse/parser.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 | /         let mut superclass = None;
[INFO] [stderr] 57 | |
[INFO] [stderr] 58 | |         // Check if we have a superclass specified.
[INFO] [stderr] 59 | |         if self.peek().unwrap() == Token::less_than() {
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |             superclass = Some(self.parse_path()?);
[INFO] [stderr] 63 | |         }
[INFO] [stderr]    | |_________^ help: it is more idiomatic to write: `let <mut> superclass = if self.peek().unwrap() == Token::less_than() { ..; Some(self.parse_path()?) } else { None };`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_let_if_seq)] on by default
[INFO] [stderr]    = note: you might not need `mut` at all
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_let_if_seq
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `is_*` usually take self by reference or no self; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/parse/parser.rs:350:15
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn is_eof(&mut self) -> bool {
[INFO] [stderr]     |               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/parse/parser.rs:359:9
[INFO] [stderr]     |
[INFO] [stderr] 359 | /         loop {
[INFO] [stderr] 360 | |             match self.peek() {
[INFO] [stderr] 361 | |                 Some(Token::EndOfLine) => {
[INFO] [stderr] 362 | |                     self.eat();
[INFO] [stderr] ...   |
[INFO] [stderr] 365 | |             }
[INFO] [stderr] 366 | |         }
[INFO] [stderr]     | |_________^ help: try: `while let Some(Token::EndOfLine) = self.peek() { .. }`
[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: methods called `is_*` usually take self by reference or no self; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/parse/parser.rs:350:15
[INFO] [stderr]     |
[INFO] [stderr] 350 |     fn is_eof(&mut self) -> bool {
[INFO] [stderr]     |               ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]    --> src/parse/parser.rs:359:9
[INFO] [stderr]     |
[INFO] [stderr] 359 | /         loop {
[INFO] [stderr] 360 | |             match self.peek() {
[INFO] [stderr] 361 | |                 Some(Token::EndOfLine) => {
[INFO] [stderr] 362 | |                     self.eat();
[INFO] [stderr] ...   |
[INFO] [stderr] 365 | |             }
[INFO] [stderr] 366 | |         }
[INFO] [stderr]     | |_________^ help: try: `while let Some(Token::EndOfLine) = self.peek() { .. }`
[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: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> tools/parse.rs:24:30
[INFO] [stderr]    |
[INFO] [stderr] 24 |     if let Some(file_path) = env::args().skip(1).next() {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> tools/parse.rs:24:30
[INFO] [stderr]    |
[INFO] [stderr] 24 |     if let Some(file_path) = env::args().skip(1).next() {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> tools/tokenize.rs:25:30
[INFO] [stderr]    |
[INFO] [stderr] 25 |     if let Some(file_path) = env::args().skip(1).next() {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]   --> tools/tokenize.rs:25:30
[INFO] [stderr]    |
[INFO] [stderr] 25 |     if let Some(file_path) = env::args().skip(1).next() {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::iter_skip_next)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.67s
[INFO] running `"docker" "inspect" "11cac8744d29e6ed8f408a58feb0e520d6bf0d1dc7cf8971902671d586e2acdd"`
[INFO] running `"docker" "rm" "-f" "11cac8744d29e6ed8f408a58feb0e520d6bf0d1dc7cf8971902671d586e2acdd"`
[INFO] [stdout] 11cac8744d29e6ed8f408a58feb0e520d6bf0d1dc7cf8971902671d586e2acdd