[INFO] updating cached repository viters/pioter-lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/viters/pioter-lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/viters/pioter-lang" "work/ex/clippy-test-run/sources/stable/gh/viters/pioter-lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/viters/pioter-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/viters/pioter-lang" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/viters/pioter-lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/viters/pioter-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bc8791c225f037d127f56fa34ee080a3f6bd1971
[INFO] sha for GitHub repo viters/pioter-lang: bc8791c225f037d127f56fa34ee080a3f6bd1971
[INFO] validating manifest of viters/pioter-lang 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 viters/pioter-lang 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 viters/pioter-lang
[INFO] finished frobbing viters/pioter-lang
[INFO] frobbed toml for viters/pioter-lang written to work/ex/clippy-test-run/sources/stable/gh/viters/pioter-lang/Cargo.toml
[INFO] started frobbing viters/pioter-lang
[INFO] finished frobbing viters/pioter-lang
[INFO] frobbed toml for viters/pioter-lang written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/viters/pioter-lang/Cargo.toml
[INFO] crate viters/pioter-lang 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 viters/pioter-lang against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/viters/pioter-lang:/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] 9ce51aac935b4485f6959d06b875c0949beec8d770fc1cec1b626fc66940c911
[INFO] running `"docker" "start" "-a" "9ce51aac935b4485f6959d06b875c0949beec8d770fc1cec1b626fc66940c911"`
[INFO] [stderr]     Checking pioter-lang v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: this `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/tokenizer/consumers.rs:45:10
[INFO] [stderr]    |
[INFO] [stderr] 45 |     } else {
[INFO] [stderr]    |  __________^
[INFO] [stderr] 46 | |     if it.peek().unwrap().is_alphabetic() {
[INFO] [stderr] 47 | |       errors.push(format!("Unexpected character in number on Line {}", line));
[INFO] [stderr] 48 | |     } else {
[INFO] [stderr] 49 | |       token_vec.push(Token::Integer(num.parse::<i32>().unwrap()));
[INFO] [stderr] 50 | |     }
[INFO] [stderr] 51 | |   }
[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] 45 |   } else if it.peek().unwrap().is_alphabetic() {
[INFO] [stderr] 46 |   errors.push(format!("Unexpected character in number on Line {}", line));
[INFO] [stderr] 47 | } else {
[INFO] [stderr] 48 |   token_vec.push(Token::Integer(num.parse::<i32>().unwrap()));
[INFO] [stderr] 49 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser::debug_pair`
[INFO] [stderr]  --> src/parser/functions.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parser::debug_pair;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/parser/functions.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   return args;
[INFO] [stderr]    |   ^^^^^^^^^^^^ help: remove `return` as shown: `args`
[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 `else { if .. }` block can be collapsed
[INFO] [stderr]   --> src/tokenizer/consumers.rs:45:10
[INFO] [stderr]    |
[INFO] [stderr] 45 |     } else {
[INFO] [stderr]    |  __________^
[INFO] [stderr] 46 | |     if it.peek().unwrap().is_alphabetic() {
[INFO] [stderr] 47 | |       errors.push(format!("Unexpected character in number on Line {}", line));
[INFO] [stderr] 48 | |     } else {
[INFO] [stderr] 49 | |       token_vec.push(Token::Integer(num.parse::<i32>().unwrap()));
[INFO] [stderr] 50 | |     }
[INFO] [stderr] 51 | |   }
[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] 45 |   } else if it.peek().unwrap().is_alphabetic() {
[INFO] [stderr] 46 |   errors.push(format!("Unexpected character in number on Line {}", line));
[INFO] [stderr] 47 | } else {
[INFO] [stderr] 48 |   token_vec.push(Token::Integer(num.parse::<i32>().unwrap()));
[INFO] [stderr] 49 | }
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser::debug_pair`
[INFO] [stderr]  --> src/parser/functions.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use parser::debug_pair;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/parser/functions.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   return args;
[INFO] [stderr]    |   ^^^^^^^^^^^^ help: remove `return` as shown: `args`
[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: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/tokenizer/mod.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn tokenize(contents: &String) -> Result<Vec<Token>, Vec<String>> {
[INFO] [stderr]    |                           ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/tokenizer/mod.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 | /   loop {
[INFO] [stderr] 26 | |     match it.peek() {
[INFO] [stderr] 27 | |       Some(&ch) => match ch {
[INFO] [stderr] 28 | |         '0'...'9' => consume_number(&mut it, &mut tokens, &mut errors, line),
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |     }
[INFO] [stderr] 56 | |   }
[INFO] [stderr]    | |___^ help: try: `while let Some(&ch) = it.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: manual implementation of an assign operation
[INFO] [stderr]   --> src/tokenizer/mod.rs:43:11
[INFO] [stderr]    |
[INFO] [stderr] 43 |           line = line + 1;
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^ help: replace it with: `line += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/tokenizer/mod.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |   if errors.len() > 0 {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!errors.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/parser/functions.rs:77:78
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn parse_p_eip_fn(pair: Pair<Rule>, memory: &HashMap<&str, Constant>, local: &Vec<&str>) -> Constant {
[INFO] [stderr]    |                                                                              ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: local variable doesn't need to be boxed here
[INFO] [stderr]    --> src/parser/functions.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn unbox<T>(value: Box<T>) -> T {
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::boxed_local)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#boxed_local
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/add.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/add.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/subtract.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/subtract.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/multiply.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/multiply.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/divide.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/divide.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/modulo.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/modulo.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/and.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/and.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/or.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/or.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/not.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let arg = args.get(0).unwrap();
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/stdlib/not.rs:6:3
[INFO] [stderr]    |
[INFO] [stderr] 6  | /   match arg {
[INFO] [stderr] 7  | |     &Constant::Boolean(b) => Constant::Boolean(!b),
[INFO] [stderr] 8  | |     _ => {
[INFO] [stderr] 9  | |       eprintln!("Invalid arguments passed to \"not\"!");
[INFO] [stderr] 10 | |       panic!()
[INFO] [stderr] 11 | |     }
[INFO] [stderr] 12 | |   }
[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] 6  |   match *arg {
[INFO] [stderr] 7  |     Constant::Boolean(b) => Constant::Boolean(!b),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/len.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let arg = args.get(0).unwrap();
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/stdlib/len.rs:6:3
[INFO] [stderr]    |
[INFO] [stderr] 6  | /   match arg {
[INFO] [stderr] 7  | |     &Constant::List(ref l) => Constant::Integer(l.len() as i32),
[INFO] [stderr] 8  | |     _ => {
[INFO] [stderr] 9  | |       eprintln!("Invalid arguments passed to \"len\"!");
[INFO] [stderr] 10 | |       panic!()
[INFO] [stderr] 11 | |     }
[INFO] [stderr] 12 | |   }
[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] 6  |   match *arg {
[INFO] [stderr] 7  |     Constant::List(ref l) => Constant::Integer(l.len() as i32),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/lt.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/lt.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/lt.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() < v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/lt.rs:12:97
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() < v2.to_owned()),
[INFO] [stderr]    |                                                                                                 ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/le.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/le.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/le.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() <= v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/le.rs:12:98
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() <= v2.to_owned()),
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/eq.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/eq.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/eq.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() == v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/eq.rs:12:98
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() == v2.to_owned()),
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/ge.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/ge.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/ge.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() >= v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/ge.rs:12:98
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() >= v2.to_owned()),
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/gt.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/gt.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/gt.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() > v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/gt.rs:12:97
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() > v2.to_owned()),
[INFO] [stderr]    |                                                                                                 ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/nth.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/nth.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/map.rs:5:39
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/map.rs:5:61
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the Vec
[INFO] [stderr]  --> src/stdlib/map.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 |       Constant::List(v2.into_iter().map(|a| run_fn(Constant::Function(v1.clone()), vec![a.clone()])).collect()),
[INFO] [stderr]   |                         ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/filter.rs:5:39
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/filter.rs:5:61
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/fold.rs:5:39
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(1).unwrap(), args.get(2).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/fold.rs:5:61
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(1).unwrap(), args.get(2).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[2]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/fold.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 |       let mut folded = args.get(0).unwrap().clone();
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/stdlib/mod.rs:49:28
[INFO] [stderr]    |
[INFO] [stderr] 49 |   let args = (0..argc).map(|i| Constant::Index(i)).collect();
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Constant::Index`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/main.rs:23:28
[INFO] [stderr]    |
[INFO] [stderr] 23 |   let contents = read_file(args.get(1).unwrap());
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&String` instead of `&str` involves a new object where a slice will do.
[INFO] [stderr]   --> src/tokenizer/mod.rs:19:27
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn tokenize(contents: &String) -> Result<Vec<Token>, Vec<String>> {
[INFO] [stderr]    |                           ^^^^^^^ help: change this to: `&str`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: this loop could be written as a `while let` loop
[INFO] [stderr]   --> src/tokenizer/mod.rs:25:3
[INFO] [stderr]    |
[INFO] [stderr] 25 | /   loop {
[INFO] [stderr] 26 | |     match it.peek() {
[INFO] [stderr] 27 | |       Some(&ch) => match ch {
[INFO] [stderr] 28 | |         '0'...'9' => consume_number(&mut it, &mut tokens, &mut errors, line),
[INFO] [stderr] ...  |
[INFO] [stderr] 55 | |     }
[INFO] [stderr] 56 | |   }
[INFO] [stderr]    | |___^ help: try: `while let Some(&ch) = it.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: manual implementation of an assign operation
[INFO] [stderr]   --> src/tokenizer/mod.rs:43:11
[INFO] [stderr]    |
[INFO] [stderr] 43 |           line = line + 1;
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^ help: replace it with: `line += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]   --> src/tokenizer/mod.rs:58:6
[INFO] [stderr]    |
[INFO] [stderr] 58 |   if errors.len() > 0 {
[INFO] [stderr]    |      ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!errors.is_empty()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/parser/functions.rs:77:78
[INFO] [stderr]    |
[INFO] [stderr] 77 | fn parse_p_eip_fn(pair: Pair<Rule>, memory: &HashMap<&str, Constant>, local: &Vec<&str>) -> Constant {
[INFO] [stderr]    |                                                                              ^^^^^^^^^^ help: change this to: `&[&str]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: local variable doesn't need to be boxed here
[INFO] [stderr]    --> src/parser/functions.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 | fn unbox<T>(value: Box<T>) -> T {
[INFO] [stderr]     |             ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::boxed_local)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#boxed_local
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/add.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/add.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/subtract.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/subtract.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/multiply.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/multiply.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/divide.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/divide.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/modulo.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/modulo.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/and.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/and.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/or.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/or.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/not.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let arg = args.get(0).unwrap();
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/stdlib/not.rs:6:3
[INFO] [stderr]    |
[INFO] [stderr] 6  | /   match arg {
[INFO] [stderr] 7  | |     &Constant::Boolean(b) => Constant::Boolean(!b),
[INFO] [stderr] 8  | |     _ => {
[INFO] [stderr] 9  | |       eprintln!("Invalid arguments passed to \"not\"!");
[INFO] [stderr] 10 | |       panic!()
[INFO] [stderr] 11 | |     }
[INFO] [stderr] 12 | |   }
[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] 6  |   match *arg {
[INFO] [stderr] 7  |     Constant::Boolean(b) => Constant::Boolean(!b),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/len.rs:4:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let arg = args.get(0).unwrap();
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]   --> src/stdlib/len.rs:6:3
[INFO] [stderr]    |
[INFO] [stderr] 6  | /   match arg {
[INFO] [stderr] 7  | |     &Constant::List(ref l) => Constant::Integer(l.len() as i32),
[INFO] [stderr] 8  | |     _ => {
[INFO] [stderr] 9  | |       eprintln!("Invalid arguments passed to \"len\"!");
[INFO] [stderr] 10 | |       panic!()
[INFO] [stderr] 11 | |     }
[INFO] [stderr] 12 | |   }
[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] 6  |   match *arg {
[INFO] [stderr] 7  |     Constant::List(ref l) => Constant::Integer(l.len() as i32),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/lt.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/lt.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/lt.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() < v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::cmp_owned)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/lt.rs:12:97
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() < v2.to_owned()),
[INFO] [stderr]    |                                                                                                 ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/le.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/le.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/le.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() <= v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/le.rs:12:98
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() <= v2.to_owned()),
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/eq.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/eq.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/eq.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() == v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/eq.rs:12:98
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() == v2.to_owned()),
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/ge.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/ge.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/ge.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() >= v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/ge.rs:12:98
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() >= v2.to_owned()),
[INFO] [stderr]    |                                                                                                  ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/gt.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/gt.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/gt.rs:12:81
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() > v2.to_owned()),
[INFO] [stderr]    |                                                                                 ^^^^^^^^^^^^^ help: try: `v1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: this creates an owned instance just for comparison
[INFO] [stderr]   --> src/stdlib/gt.rs:12:97
[INFO] [stderr]    |
[INFO] [stderr] 12 |     (&Constant::String(ref v1), &Constant::String(ref v2)) => Constant::Boolean(v1.to_owned() > v2.to_owned()),
[INFO] [stderr]    |                                                                                                 ^^^^^^^^^^^^^ help: try: `v2`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cmp_owned
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/nth.rs:4:39
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/nth.rs:4:61
[INFO] [stderr]   |
[INFO] [stderr] 4 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/map.rs:5:39
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/map.rs:5:61
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the Vec
[INFO] [stderr]  --> src/stdlib/map.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 |       Constant::List(v2.into_iter().map(|a| run_fn(Constant::Function(v1.clone()), vec![a.clone()])).collect()),
[INFO] [stderr]   |                         ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/filter.rs:5:39
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/filter.rs:5:61
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(0).unwrap(), args.get(1).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/fold.rs:5:39
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(1).unwrap(), args.get(2).unwrap());
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/fold.rs:5:61
[INFO] [stderr]   |
[INFO] [stderr] 5 |   let pair: (&Constant, &Constant) = (args.get(1).unwrap(), args.get(2).unwrap());
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[2]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]  --> src/stdlib/fold.rs:9:24
[INFO] [stderr]   |
[INFO] [stderr] 9 |       let mut folded = args.get(0).unwrap().clone();
[INFO] [stderr]   |                        ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[0]`
[INFO] [stderr]   |
[INFO] [stderr]   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: redundant closure found
[INFO] [stderr]   --> src/stdlib/mod.rs:49:28
[INFO] [stderr]    |
[INFO] [stderr] 49 |   let args = (0..argc).map(|i| Constant::Index(i)).collect();
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^ help: remove closure as shown: `Constant::Index`
[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: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/main.rs:23:28
[INFO] [stderr]    |
[INFO] [stderr] 23 |   let contents = read_file(args.get(1).unwrap());
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^ help: try this: `&args[1]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `"docker" "inspect" "9ce51aac935b4485f6959d06b875c0949beec8d770fc1cec1b626fc66940c911"`
[INFO] running `"docker" "rm" "-f" "9ce51aac935b4485f6959d06b875c0949beec8d770fc1cec1b626fc66940c911"`
[INFO] [stdout] 9ce51aac935b4485f6959d06b875c0949beec8d770fc1cec1b626fc66940c911