[INFO] crate lci 0.1.8 is already in cache
[INFO] extracting crate lci 0.1.8 into work/ex/clippy-test-run/sources/stable/reg/lci/0.1.8
[INFO] extracting crate lci 0.1.8 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lci/0.1.8
[INFO] validating manifest of lci-0.1.8 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 lci-0.1.8 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 lci-0.1.8
[INFO] finished frobbing lci-0.1.8
[INFO] frobbed toml for lci-0.1.8 written to work/ex/clippy-test-run/sources/stable/reg/lci/0.1.8/Cargo.toml
[INFO] started frobbing lci-0.1.8
[INFO] finished frobbing lci-0.1.8
[INFO] frobbed toml for lci-0.1.8 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/lci/0.1.8/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 lci-0.1.8 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/lci/0.1.8:/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] aa884e94a1cf872a78bfe5141b4cdc3f1c64a2e42d914e4b05b01cabc9eb5a62
[INFO] running `"docker" "start" "-a" "aa884e94a1cf872a78bfe5141b4cdc3f1c64a2e42d914e4b05b01cabc9eb5a62"`
[INFO] [stderr]     Checking unic-ucd-name v0.7.0
[INFO] [stderr]     Checking lci v0.1.8 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/eval.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |             stdin: stdin,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `stdin`
[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/eval.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             stdout: stdout,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `stdout`
[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/eval.rs:366:21
[INFO] [stderr]     |
[INFO] [stderr] 366 |                     args: args,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: replace it with: `args`
[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/eval.rs:367:21
[INFO] [stderr]     |
[INFO] [stderr] 367 |                     block: block
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: replace it with: `block`
[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/eval.rs:57:13
[INFO] [stderr]    |
[INFO] [stderr] 57 |             stdin: stdin,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `stdin`
[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/eval.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             stdout: stdout,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `stdout`
[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/eval.rs:366:21
[INFO] [stderr]     |
[INFO] [stderr] 366 |                     args: args,
[INFO] [stderr]     |                     ^^^^^^^^^^ help: replace it with: `args`
[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/eval.rs:367:21
[INFO] [stderr]     |
[INFO] [stderr] 367 |                     block: block
[INFO] [stderr]     |                     ^^^^^^^^^^^^ help: replace it with: `block`
[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: unneeded return statement
[INFO] [stderr]    --> src/parser.rs:133:26
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     _ => return Err(Error::ExpectedKind("numbar"))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(Error::ExpectedKind("numbar"))`
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/tokenizer.rs:366:17
[INFO] [stderr]     |
[INFO] [stderr] 366 | /                 if clone.word() == "IZ" {
[INFO] [stderr] 367 | |                     if clone.word() == "I" {
[INFO] [stderr] 368 | |                         *self = clone;
[INFO] [stderr] 369 | |                         return Ok(Some(Token::HowIzI));
[INFO] [stderr] 370 | |                     }
[INFO] [stderr] 371 | |                 }
[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] 366 |                 if clone.word() == "IZ" && clone.word() == "I" {
[INFO] [stderr] 367 |     *self = clone;
[INFO] [stderr] 368 |     return Ok(Some(Token::HowIzI));
[INFO] [stderr] 369 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/tokenizer.rs:375:17
[INFO] [stderr]     |
[INFO] [stderr] 375 | /                 if clone.word() == "U" {
[INFO] [stderr] 376 | |                     if clone.word() == "SAY" {
[INFO] [stderr] 377 | |                         if clone.word() == "SO" {
[INFO] [stderr] 378 | |                             *self = clone;
[INFO] [stderr] ...   |
[INFO] [stderr] 381 | |                     }
[INFO] [stderr] 382 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[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] 375 |                 if clone.word() == "U" && clone.word() == "SAY" {
[INFO] [stderr] 376 |     if clone.word() == "SO" {
[INFO] [stderr] 377 |         *self = clone;
[INFO] [stderr] 378 |         return Ok(Some(Token::IfUSaySo));
[INFO] [stderr] 379 |     }
[INFO] [stderr] 380 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/tokenizer.rs:376:21
[INFO] [stderr]     |
[INFO] [stderr] 376 | /                     if clone.word() == "SAY" {
[INFO] [stderr] 377 | |                         if clone.word() == "SO" {
[INFO] [stderr] 378 | |                             *self = clone;
[INFO] [stderr] 379 | |                             return Ok(Some(Token::IfUSaySo));
[INFO] [stderr] 380 | |                         }
[INFO] [stderr] 381 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[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] 376 |                     if clone.word() == "SAY" && clone.word() == "SO" {
[INFO] [stderr] 377 |     *self = clone;
[INFO] [stderr] 378 |     return Ok(Some(Token::IfUSaySo));
[INFO] [stderr] 379 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/parser.rs:133:26
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     _ => return Err(Error::ExpectedKind("numbar"))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(Error::ExpectedKind("numbar"))`
[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: this if statement can be collapsed
[INFO] [stderr]    --> src/tokenizer.rs:366:17
[INFO] [stderr]     |
[INFO] [stderr] 366 | /                 if clone.word() == "IZ" {
[INFO] [stderr] 367 | |                     if clone.word() == "I" {
[INFO] [stderr] 368 | |                         *self = clone;
[INFO] [stderr] 369 | |                         return Ok(Some(Token::HowIzI));
[INFO] [stderr] 370 | |                     }
[INFO] [stderr] 371 | |                 }
[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] 366 |                 if clone.word() == "IZ" && clone.word() == "I" {
[INFO] [stderr] 367 |     *self = clone;
[INFO] [stderr] 368 |     return Ok(Some(Token::HowIzI));
[INFO] [stderr] 369 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/tokenizer.rs:375:17
[INFO] [stderr]     |
[INFO] [stderr] 375 | /                 if clone.word() == "U" {
[INFO] [stderr] 376 | |                     if clone.word() == "SAY" {
[INFO] [stderr] 377 | |                         if clone.word() == "SO" {
[INFO] [stderr] 378 | |                             *self = clone;
[INFO] [stderr] ...   |
[INFO] [stderr] 381 | |                     }
[INFO] [stderr] 382 | |                 }
[INFO] [stderr]     | |_________________^
[INFO] [stderr]     |
[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] 375 |                 if clone.word() == "U" && clone.word() == "SAY" {
[INFO] [stderr] 376 |     if clone.word() == "SO" {
[INFO] [stderr] 377 |         *self = clone;
[INFO] [stderr] 378 |         return Ok(Some(Token::IfUSaySo));
[INFO] [stderr] 379 |     }
[INFO] [stderr] 380 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: this if statement can be collapsed
[INFO] [stderr]    --> src/tokenizer.rs:376:21
[INFO] [stderr]     |
[INFO] [stderr] 376 | /                     if clone.word() == "SAY" {
[INFO] [stderr] 377 | |                         if clone.word() == "SO" {
[INFO] [stderr] 378 | |                             *self = clone;
[INFO] [stderr] 379 | |                             return Ok(Some(Token::IfUSaySo));
[INFO] [stderr] 380 | |                         }
[INFO] [stderr] 381 | |                     }
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[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] 376 |                     if clone.word() == "SAY" && clone.word() == "SO" {
[INFO] [stderr] 377 |     *self = clone;
[INFO] [stderr] 378 |     return Ok(Some(Token::IfUSaySo));
[INFO] [stderr] 379 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/eval.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     funcs: HashMap<String, (Option<usize>, Box<FnMut(Vec<Value>) -> Value>)>,
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:380:61
[INFO] [stderr]     |
[INFO] [stderr] 380 |                 stdout.write_all(result.as_bytes()).map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:382:53
[INFO] [stderr]     |
[INFO] [stderr] 382 |                     stdout.write_all(b"\n").map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:384:44
[INFO] [stderr]     |
[INFO] [stderr] 384 |                     stdout.flush().map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:391:52
[INFO] [stderr]     |
[INFO] [stderr] 391 |                 stdin.read_line(&mut text).map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[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/parser.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 | /             match self.iter.peek() {
[INFO] [stderr] 90 | |                 Some(token) => if until.contains(&token) { break; },
[INFO] [stderr] 91 | |                 None => ()
[INFO] [stderr] 92 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Some(token) = self.iter.peek() { if until.contains(&token) { break; } }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/parser.rs:296:44
[INFO] [stderr]     |
[INFO] [stderr] 296 |             _ => Ok(self.expression()?.map(|expr| AST::It(expr)))
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `AST::It`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `next` on this type; consider implementing the `std::iter::Iterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/tokenizer.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 | /     pub fn next(&mut self) -> Result<Option<Token>> {
[INFO] [stderr] 139 | |         let c = match self.peek() {
[INFO] [stderr] 140 | |             Some(c) => c,
[INFO] [stderr] 141 | |             None => return Ok(None)
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |         Err(Error::UnknownToken)
[INFO] [stderr] 424 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 56
[INFO] [stderr]    --> src/tokenizer.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 | /     pub fn next(&mut self) -> Result<Option<Token>> {
[INFO] [stderr] 139 | |         let c = match self.peek() {
[INFO] [stderr] 140 | |             Some(c) => c,
[INFO] [stderr] 141 | |             None => return Ok(None)
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |         Err(Error::UnknownToken)
[INFO] [stderr] 424 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: very complex type used. Consider factoring parts into `type` definitions
[INFO] [stderr]   --> src/eval.rs:50:12
[INFO] [stderr]    |
[INFO] [stderr] 50 |     funcs: HashMap<String, (Option<usize>, Box<FnMut(Vec<Value>) -> Value>)>,
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::type_complexity)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:26:60
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let tokens = tokenizer::tokenize(code.chars()).map_err(|err| Error::TokenizeError(err))?;
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::TokenizeError`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:28:48
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let parsed = parser::parse(tokens).map_err(|err| Error::ParseError(err))?;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::ParseError`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:42:43
[INFO] [stderr]    |
[INFO] [stderr] 42 |     eval.scope().eval_all(parsed).map_err(|err| Error::EvalError(err))?;
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::EvalError`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:380:61
[INFO] [stderr]     |
[INFO] [stderr] 380 |                 stdout.write_all(result.as_bytes()).map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_closure)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:382:53
[INFO] [stderr]     |
[INFO] [stderr] 382 |                     stdout.write_all(b"\n").map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:384:44
[INFO] [stderr]     |
[INFO] [stderr] 384 |                     stdout.flush().map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/eval.rs:391:52
[INFO] [stderr]     |
[INFO] [stderr] 391 |                 stdin.read_line(&mut text).map_err(|err| Error::IoError(err))?;
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::IoError`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[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/parser.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 | /             match self.iter.peek() {
[INFO] [stderr] 90 | |                 Some(token) => if until.contains(&token) { break; },
[INFO] [stderr] 91 | |                 None => ()
[INFO] [stderr] 92 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Some(token) = self.iter.peek() { if until.contains(&token) { break; } }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]    --> src/parser.rs:296:44
[INFO] [stderr]     |
[INFO] [stderr] 296 |             _ => Ok(self.expression()?.map(|expr| AST::It(expr)))
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `AST::It`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `next` on this type; consider implementing the `std::iter::Iterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/tokenizer.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 | /     pub fn next(&mut self) -> Result<Option<Token>> {
[INFO] [stderr] 139 | |         let c = match self.peek() {
[INFO] [stderr] 140 | |             Some(c) => c,
[INFO] [stderr] 141 | |             None => return Ok(None)
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |         Err(Error::UnknownToken)
[INFO] [stderr] 424 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: the function has a cyclomatic complexity of 56
[INFO] [stderr]    --> src/tokenizer.rs:138:5
[INFO] [stderr]     |
[INFO] [stderr] 138 | /     pub fn next(&mut self) -> Result<Option<Token>> {
[INFO] [stderr] 139 | |         let c = match self.peek() {
[INFO] [stderr] 140 | |             Some(c) => c,
[INFO] [stderr] 141 | |             None => return Ok(None)
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |         Err(Error::UnknownToken)
[INFO] [stderr] 424 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cyclomatic_complexity)] on by default
[INFO] [stderr]     = help: you could split it up into multiple smaller functions
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cyclomatic_complexity
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:26:60
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let tokens = tokenizer::tokenize(code.chars()).map_err(|err| Error::TokenizeError(err))?;
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::TokenizeError`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:28:48
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let parsed = parser::parse(tokens).map_err(|err| Error::ParseError(err))?;
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::ParseError`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/lib.rs:42:43
[INFO] [stderr]    |
[INFO] [stderr] 42 |     eval.scope().eval_all(parsed).map_err(|err| Error::EvalError(err))?;
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Error::EvalError`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
[INFO] [stderr] 
[INFO] [stderr] warning: called `skip(x).next()` on an iterator. This is more succinctly expressed by calling `nth(x)`
[INFO] [stderr]  --> src/main.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let file = match 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]  --> src/main.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let file = match 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 26.80s
[INFO] running `"docker" "inspect" "aa884e94a1cf872a78bfe5141b4cdc3f1c64a2e42d914e4b05b01cabc9eb5a62"`
[INFO] running `"docker" "rm" "-f" "aa884e94a1cf872a78bfe5141b4cdc3f1c64a2e42d914e4b05b01cabc9eb5a62"`
[INFO] [stdout] aa884e94a1cf872a78bfe5141b4cdc3f1c64a2e42d914e4b05b01cabc9eb5a62