[INFO] cloning repository https://github.com/therealansh/fxlang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/therealansh/fxlang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealansh%2Ffxlang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealansh%2Ffxlang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 664211f6e551353a517872a10dfe3be089ab511d
[INFO] testing therealansh/fxlang against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealansh%2Ffxlang" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/therealansh/fxlang on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/therealansh/fxlang
[INFO] finished tweaking git repo https://github.com/therealansh/fxlang
[INFO] tweaked toml for git repo https://github.com/therealansh/fxlang written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/therealansh/fxlang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77bdd27c2a3bd9d5e070fa15bb60cd4410bb4a194d7cf594932c323892b302bb
[INFO] running `Command { std: "docker" "start" "-a" "77bdd27c2a3bd9d5e070fa15bb60cd4410bb4a194d7cf594932c323892b302bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77bdd27c2a3bd9d5e070fa15bb60cd4410bb4a194d7cf594932c323892b302bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77bdd27c2a3bd9d5e070fa15bb60cd4410bb4a194d7cf594932c323892b302bb", kill_on_drop: false }`
[INFO] [stdout] 77bdd27c2a3bd9d5e070fa15bb60cd4410bb4a194d7cf594932c323892b302bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e4d987ca3af09ac65cd27e1ea8042b8448045e07b8e75555450d74a78acf3b6
[INFO] running `Command { std: "docker" "start" "-a" "9e4d987ca3af09ac65cd27e1ea8042b8448045e07b8e75555450d74a78acf3b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling fxlang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::frontend::expr::Expr::Literal`
[INFO] [stdout]  --> src/frontend/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::frontend::expr::Expr::Literal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/frontend/parser.rs:55:30
[INFO] [stdout]    |
[INFO] [stdout] 55 |         else if self.t_match((&[TokenType::Return])) {
[INFO] [stdout]    |                              ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         else if self.t_match((&[TokenType::Return])) {
[INFO] [stdout] 55 +         else if self.t_match(&[TokenType::Return]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:230:11
[INFO] [stdout]     |
[INFO] [stdout] 230 |         if(self.is_at_end()) {
[INFO] [stdout]     |           ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 230 -         if(self.is_at_end()) {
[INFO] [stdout] 230 +         if self.is_at_end() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:245:11
[INFO] [stdout]     |
[INFO] [stdout] 245 |         if(!self.is_at_end()){
[INFO] [stdout]     |           ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 245 -         if(!self.is_at_end()){
[INFO] [stdout] 245 +         if !self.is_at_end() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:467:15
[INFO] [stdout]     |
[INFO] [stdout] 467 |             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stdout]     |               ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 467 -             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stdout] 467 +             if self.previous().token_type==TokenType::Semicolon { return; }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]   --> src/frontend/interpreter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/frontend/fxfx.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::frontend::tokens::{Token, TokenType};
[INFO] [stdout]   |                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/frontend/resolver.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::frontend::expr::{Visitor, Expr, LiteralValue};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser_error`
[INFO] [stdout]  --> src/frontend/resolver.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::frontend::error::{Error, parser_error, report};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callee`
[INFO] [stdout]    --> src/frontend/expr.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/frontend/expr.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]    --> src/frontend/expr.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/frontend/expr.rs:155:34
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/expr.rs:155:49
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/frontend/expr.rs:159:34
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/expr.rs:159:49
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/frontend/expr.rs:159:63
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/expr.rs:163:36
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/frontend/expr.rs:163:53
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/expr.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn visit_this_expr(&mut self, keyword: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend/parser.rs:260:13
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let mut expr = self.or_()?;
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/frontend/parser.rs:472:19
[INFO] [stdout]     |
[INFO] [stdout] 471 |                 | TokenType::Var
[INFO] [stdout]     |                   -------------- matches all the relevant values
[INFO] [stdout] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 body:Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/interpreter.rs:389:37
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn visit_return_stmt(&mut self, keyword: &Token, value: &Option<Expr>) -> Result<(), Error> {
[INFO] [stdout]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/fxfx.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/frontend/fxfx.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |             FxFx::Native {body, ..} => unreachable!(),
[INFO] [stdout]    |                           ^^^^-
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/fxfx.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:223:61
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn visit_binary_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/frontend/resolver.rs:229:50
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<(), Error> {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/resolver.rs:237:49
[INFO] [stdout]     |
[INFO] [stdout] 237 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/resolver.rs:242:49
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<(),Error>{
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/frontend/resolver.rs:248:53
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/frontend/resolver.rs:271:38
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn visit_literal_expr(&mut self, val: &LiteralValue) -> Result<(), Error> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:275:62
[INFO] [stdout]     |
[INFO] [stdout] 275 |     fn visit_logical_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                              ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:281:36
[INFO] [stdout]     |
[INFO] [stdout] 281 |     fn visit_unary_expr(&mut self, op: &Token, rhs: &Expr) -> Result<(), Error> {
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sync` is never used
[INFO] [stdout]    --> src/frontend/parser.rs:464:8
[INFO] [stdout]     |
[INFO] [stdout] 12  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 464 |     fn sync(&mut self){
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _ = self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let _ = self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readNum` should have a snake case name
[INFO] [stdout]   --> src/frontend/interpreter.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let readNum:FxUnit = FxUnit::Callable(
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `read_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readString` should have a snake case name
[INFO] [stdout]   --> src/frontend/interpreter.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let readString:FxUnit = FxUnit::Callable(
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `read_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/interpreter.rs:334:9
[INFO] [stdout]     |
[INFO] [stdout] 334 | /         self.exec_block(
[INFO] [stdout] 335 | |             statements,
[INFO] [stdout] 336 | |             Rc::new(RefCell::new(Environment::from(&self.env))),
[INFO] [stdout] 337 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 334 |         let _ = self.exec_block(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/interpreter.rs:440:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |         self.env.borrow_mut().assign(name, class);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 440 |         let _ = self.env.borrow_mut().assign(name, class);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/resolver.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         stmt.accept(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let _ = stmt.accept(self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/resolver.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         expr.accept(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let _ = expr.accept(self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fxlang::frontend::expr::AstPrinter`
[INFO] [stdout]  --> src/bin/fxlang.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use fxlang::frontend::expr::AstPrinter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::stdin`
[INFO] [stdout]   --> src/bin/fxlang.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::stdin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "9e4d987ca3af09ac65cd27e1ea8042b8448045e07b8e75555450d74a78acf3b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e4d987ca3af09ac65cd27e1ea8042b8448045e07b8e75555450d74a78acf3b6", kill_on_drop: false }`
[INFO] [stdout] 9e4d987ca3af09ac65cd27e1ea8042b8448045e07b8e75555450d74a78acf3b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a87bf1d09a7df43960cf8dc66992e61c102b0c997a9318b7d2558f43386ca6f5
[INFO] running `Command { std: "docker" "start" "-a" "a87bf1d09a7df43960cf8dc66992e61c102b0c997a9318b7d2558f43386ca6f5", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::frontend::expr::Expr::Literal`
[INFO] [stdout]  --> src/frontend/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::frontend::expr::Expr::Literal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/frontend/parser.rs:55:30
[INFO] [stdout]    |
[INFO] [stdout] 55 |         else if self.t_match((&[TokenType::Return])) {
[INFO] [stdout]    |                              ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         else if self.t_match((&[TokenType::Return])) {
[INFO] [stdout] 55 +         else if self.t_match(&[TokenType::Return]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:230:11
[INFO] [stdout]     |
[INFO] [stdout] 230 |         if(self.is_at_end()) {
[INFO] [stdout]     |           ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 230 -         if(self.is_at_end()) {
[INFO] [stdout] 230 +         if self.is_at_end() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:245:11
[INFO] [stdout]     |
[INFO] [stdout] 245 |         if(!self.is_at_end()){
[INFO] [stdout]     |           ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 245 -         if(!self.is_at_end()){
[INFO] [stdout] 245 +         if !self.is_at_end() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:467:15
[INFO] [stdout]     |
[INFO] [stdout] 467 |             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stdout]     |               ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 467 -             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stdout] 467 +             if self.previous().token_type==TokenType::Semicolon { return; }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]   --> src/frontend/interpreter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/frontend/fxfx.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::frontend::tokens::{Token, TokenType};
[INFO] [stdout]   |                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/frontend/resolver.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::frontend::expr::{Visitor, Expr, LiteralValue};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser_error`
[INFO] [stdout]  --> src/frontend/resolver.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::frontend::error::{Error, parser_error, report};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callee`
[INFO] [stdout]    --> src/frontend/expr.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/frontend/expr.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]    --> src/frontend/expr.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/frontend/expr.rs:155:34
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/expr.rs:155:49
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/frontend/expr.rs:159:34
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/expr.rs:159:49
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/frontend/expr.rs:159:63
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/expr.rs:163:36
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/frontend/expr.rs:163:53
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/expr.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn visit_this_expr(&mut self, keyword: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend/parser.rs:260:13
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let mut expr = self.or_()?;
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/frontend/parser.rs:472:19
[INFO] [stdout]     |
[INFO] [stdout] 471 |                 | TokenType::Var
[INFO] [stdout]     |                   -------------- matches all the relevant values
[INFO] [stdout] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 body:Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/interpreter.rs:389:37
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn visit_return_stmt(&mut self, keyword: &Token, value: &Option<Expr>) -> Result<(), Error> {
[INFO] [stdout]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/fxfx.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/frontend/fxfx.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |             FxFx::Native {body, ..} => unreachable!(),
[INFO] [stdout]    |                           ^^^^-
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/fxfx.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:223:61
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn visit_binary_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/frontend/resolver.rs:229:50
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<(), Error> {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/resolver.rs:237:49
[INFO] [stdout]     |
[INFO] [stdout] 237 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/resolver.rs:242:49
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<(),Error>{
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/frontend/resolver.rs:248:53
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/frontend/resolver.rs:271:38
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn visit_literal_expr(&mut self, val: &LiteralValue) -> Result<(), Error> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:275:62
[INFO] [stdout]     |
[INFO] [stdout] 275 |     fn visit_logical_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                              ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:281:36
[INFO] [stdout]     |
[INFO] [stdout] 281 |     fn visit_unary_expr(&mut self, op: &Token, rhs: &Expr) -> Result<(), Error> {
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sync` is never used
[INFO] [stdout]    --> src/frontend/parser.rs:464:8
[INFO] [stdout]     |
[INFO] [stdout] 12  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 464 |     fn sync(&mut self){
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _ = self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fxlang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let _ = self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readNum` should have a snake case name
[INFO] [stdout]   --> src/frontend/interpreter.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let readNum:FxUnit = FxUnit::Callable(
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `read_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readString` should have a snake case name
[INFO] [stdout]   --> src/frontend/interpreter.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let readString:FxUnit = FxUnit::Callable(
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `read_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/interpreter.rs:334:9
[INFO] [stdout]     |
[INFO] [stdout] 334 | /         self.exec_block(
[INFO] [stdout] 335 | |             statements,
[INFO] [stdout] 336 | |             Rc::new(RefCell::new(Environment::from(&self.env))),
[INFO] [stdout] 337 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 334 |         let _ = self.exec_block(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/interpreter.rs:440:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |         self.env.borrow_mut().assign(name, class);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 440 |         let _ = self.env.borrow_mut().assign(name, class);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/resolver.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         stmt.accept(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let _ = stmt.accept(self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/resolver.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         expr.accept(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let _ = expr.accept(self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fxlang::frontend::expr::AstPrinter`
[INFO] [stdout]  --> src/bin/fxlang.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use fxlang::frontend::expr::AstPrinter;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::stdin`
[INFO] [stdout]   --> src/bin/fxlang.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::io::stdin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::frontend::expr::Expr::Literal`
[INFO] [stdout]  --> src/frontend/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::frontend::expr::Expr::Literal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/frontend/parser.rs:55:30
[INFO] [stdout]    |
[INFO] [stdout] 55 |         else if self.t_match((&[TokenType::Return])) {
[INFO] [stdout]    |                              ^                    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -         else if self.t_match((&[TokenType::Return])) {
[INFO] [stdout] 55 +         else if self.t_match(&[TokenType::Return]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:230:11
[INFO] [stdout]     |
[INFO] [stdout] 230 |         if(self.is_at_end()) {
[INFO] [stdout]     |           ^                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 230 -         if(self.is_at_end()) {
[INFO] [stdout] 230 +         if self.is_at_end() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:245:11
[INFO] [stdout]     |
[INFO] [stdout] 245 |         if(!self.is_at_end()){
[INFO] [stdout]     |           ^                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 245 -         if(!self.is_at_end()){
[INFO] [stdout] 245 +         if !self.is_at_end() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/frontend/parser.rs:467:15
[INFO] [stdout]     |
[INFO] [stdout] 467 |             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stdout]     |               ^                                                ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 467 -             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stdout] 467 +             if self.previous().token_type==TokenType::Semicolon { return; }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]   --> src/frontend/interpreter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::io;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TokenType`
[INFO] [stdout]  --> src/frontend/fxfx.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::frontend::tokens::{Token, TokenType};
[INFO] [stdout]   |                                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/frontend/resolver.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::frontend::expr::{Visitor, Expr, LiteralValue};
[INFO] [stdout]   |                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser_error`
[INFO] [stdout]  --> src/frontend/resolver.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::frontend::error::{Error, parser_error, report};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `callee`
[INFO] [stdout]    --> src/frontend/expr.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/frontend/expr.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arguments`
[INFO] [stdout]    --> src/frontend/expr.rs:151:65
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stdout]     |                                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/frontend/expr.rs:155:34
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/expr.rs:155:49
[INFO] [stdout]     |
[INFO] [stdout] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]    --> src/frontend/expr.rs:159:34
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/expr.rs:159:49
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/frontend/expr.rs:159:63
[INFO] [stdout]     |
[INFO] [stdout] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stdout]     |                                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/expr.rs:163:36
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/frontend/expr.rs:163:53
[INFO] [stdout]     |
[INFO] [stdout] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/expr.rs:167:35
[INFO] [stdout]     |
[INFO] [stdout] 167 |     fn visit_this_expr(&mut self, keyword: &Token) -> Result<String, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/frontend/parser.rs:260:13
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let mut expr = self.or_()?;
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/frontend/parser.rs:472:19
[INFO] [stdout]     |
[INFO] [stdout] 471 |                 | TokenType::Var
[INFO] [stdout]     |                   -------------- matches all the relevant values
[INFO] [stdout] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:49:33
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/frontend/interpreter.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 body:Box::new(|args:&Vec<FxUnit>|{
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `keyword`
[INFO] [stdout]    --> src/frontend/interpreter.rs:389:37
[INFO] [stdout]     |
[INFO] [stdout] 389 |     fn visit_return_stmt(&mut self, keyword: &Token, value: &Option<Expr>) -> Result<(), Error> {
[INFO] [stdout]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/fxfx.rs:34:21
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]   --> src/frontend/fxfx.rs:67:27
[INFO] [stdout]    |
[INFO] [stdout] 67 |             FxFx::Native {body, ..} => unreachable!(),
[INFO] [stdout]    |                           ^^^^-
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: try removing the field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/frontend/fxfx.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:223:61
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn visit_binary_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `paren`
[INFO] [stdout]    --> src/frontend/resolver.rs:229:50
[INFO] [stdout]     |
[INFO] [stdout] 229 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<(), Error> {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/resolver.rs:237:49
[INFO] [stdout]     |
[INFO] [stdout] 237 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/frontend/resolver.rs:242:49
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<(),Error>{
[INFO] [stdout]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `method`
[INFO] [stdout]    --> src/frontend/resolver.rs:248:53
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]    --> src/frontend/resolver.rs:271:38
[INFO] [stdout]     |
[INFO] [stdout] 271 |     fn visit_literal_expr(&mut self, val: &LiteralValue) -> Result<(), Error> {
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:275:62
[INFO] [stdout]     |
[INFO] [stdout] 275 |     fn visit_logical_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stdout]     |                                                              ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/frontend/resolver.rs:281:36
[INFO] [stdout]     |
[INFO] [stdout] 281 |     fn visit_unary_expr(&mut self, op: &Token, rhs: &Expr) -> Result<(), Error> {
[INFO] [stdout]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sync` is never used
[INFO] [stdout]    --> src/frontend/parser.rs:464:8
[INFO] [stdout]     |
[INFO] [stdout] 12  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 464 |     fn sync(&mut self){
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let _ = self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/parser.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |         self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 156 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/parser.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let _ = self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readNum` should have a snake case name
[INFO] [stdout]   --> src/frontend/interpreter.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let readNum:FxUnit = FxUnit::Callable(
[INFO] [stdout]    |             ^^^^^^^ help: convert the identifier to snake case: `read_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readString` should have a snake case name
[INFO] [stdout]   --> src/frontend/interpreter.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let readString:FxUnit = FxUnit::Callable(
[INFO] [stdout]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `read_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/interpreter.rs:334:9
[INFO] [stdout]     |
[INFO] [stdout] 334 | /         self.exec_block(
[INFO] [stdout] 335 | |             statements,
[INFO] [stdout] 336 | |             Rc::new(RefCell::new(Environment::from(&self.env))),
[INFO] [stdout] 337 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 334 |         let _ = self.exec_block(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/frontend/interpreter.rs:440:9
[INFO] [stdout]     |
[INFO] [stdout] 440 |         self.env.borrow_mut().assign(name, class);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 440 |         let _ = self.env.borrow_mut().assign(name, class);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/resolver.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         stmt.accept(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 45 |         let _ = stmt.accept(self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/frontend/resolver.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         expr.accept(self);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let _ = expr.accept(self);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "a87bf1d09a7df43960cf8dc66992e61c102b0c997a9318b7d2558f43386ca6f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a87bf1d09a7df43960cf8dc66992e61c102b0c997a9318b7d2558f43386ca6f5", kill_on_drop: false }`
[INFO] [stdout] a87bf1d09a7df43960cf8dc66992e61c102b0c997a9318b7d2558f43386ca6f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b6d8efb8016d5a7a04d2de8aba96977acf36b699ad29fde59cd200b09ee0c7e1
[INFO] running `Command { std: "docker" "start" "-a" "b6d8efb8016d5a7a04d2de8aba96977acf36b699ad29fde59cd200b09ee0c7e1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::frontend::expr::Expr::Literal`
[INFO] [stderr]  --> src/frontend/parser.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::frontend::expr::Expr::Literal;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/frontend/parser.rs:55:30
[INFO] [stderr]    |
[INFO] [stderr] 55 |         else if self.t_match((&[TokenType::Return])) {
[INFO] [stderr]    |                              ^                    ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 55 -         else if self.t_match((&[TokenType::Return])) {
[INFO] [stderr] 55 +         else if self.t_match(&[TokenType::Return]) {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/frontend/parser.rs:230:11
[INFO] [stderr]     |
[INFO] [stderr] 230 |         if(self.is_at_end()) {
[INFO] [stderr]     |           ^                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 230 -         if(self.is_at_end()) {
[INFO] [stderr] 230 +         if self.is_at_end() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/frontend/parser.rs:245:11
[INFO] [stderr]     |
[INFO] [stderr] 245 |         if(!self.is_at_end()){
[INFO] [stderr]     |           ^                 ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 245 -         if(!self.is_at_end()){
[INFO] [stderr] 245 +         if !self.is_at_end() {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/frontend/parser.rs:467:15
[INFO] [stderr]     |
[INFO] [stderr] 467 |             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stderr]     |               ^                                                ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 467 -             if(self.previous().token_type==TokenType::Semicolon) { return; }
[INFO] [stderr] 467 +             if self.previous().token_type==TokenType::Semicolon { return; }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/frontend/interpreter.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenType`
[INFO] [stderr]  --> src/frontend/fxfx.rs:2:38
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::frontend::tokens::{Token, TokenType};
[INFO] [stderr]   |                                      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Visitor`
[INFO] [stderr]  --> src/frontend/resolver.rs:2:29
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::frontend::expr::{Visitor, Expr, LiteralValue};
[INFO] [stderr]   |                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser_error`
[INFO] [stderr]  --> src/frontend/resolver.rs:4:37
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::frontend::error::{Error, parser_error, report};
[INFO] [stderr]   |                                     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `callee`
[INFO] [stderr]    --> src/frontend/expr.rs:151:35
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stderr]     |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_callee`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `paren`
[INFO] [stderr]    --> src/frontend/expr.rs:151:50
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stderr]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]    --> src/frontend/expr.rs:151:65
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<String, Error> {
[INFO] [stderr]     |                                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]    --> src/frontend/expr.rs:155:34
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stderr]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/frontend/expr.rs:155:49
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<String, Error> {
[INFO] [stderr]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]    --> src/frontend/expr.rs:159:34
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stderr]     |                                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/frontend/expr.rs:159:49
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stderr]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/frontend/expr.rs:159:63
[INFO] [stderr]     |
[INFO] [stderr] 159 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<String, Error> {
[INFO] [stderr]     |                                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keyword`
[INFO] [stderr]    --> src/frontend/expr.rs:163:36
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stderr]     |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `method`
[INFO] [stderr]    --> src/frontend/expr.rs:163:53
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<String, Error> {
[INFO] [stderr]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keyword`
[INFO] [stderr]    --> src/frontend/expr.rs:167:35
[INFO] [stderr]     |
[INFO] [stderr] 167 |     fn visit_this_expr(&mut self, keyword: &Token) -> Result<String, Error> {
[INFO] [stderr]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend/parser.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let mut expr = self.or_()?;
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/frontend/parser.rs:472:19
[INFO] [stderr]     |
[INFO] [stderr] 471 |                 | TokenType::Var
[INFO] [stderr]     |                   -------------- matches all the relevant values
[INFO] [stderr] 472 |                 | TokenType::Var
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/frontend/interpreter.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stderr]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/frontend/interpreter.rs:49:33
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 body: Box::new(|args:&Vec<FxUnit>|{
[INFO] [stderr]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/frontend/interpreter.rs:61:32
[INFO] [stderr]    |
[INFO] [stderr] 61 |                 body:Box::new(|args:&Vec<FxUnit>|{
[INFO] [stderr]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keyword`
[INFO] [stderr]    --> src/frontend/interpreter.rs:389:37
[INFO] [stderr]     |
[INFO] [stderr] 389 |     fn visit_return_stmt(&mut self, keyword: &Token, value: &Option<Expr>) -> Result<(), Error> {
[INFO] [stderr]     |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyword`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/frontend/fxfx.rs:34:21
[INFO] [stderr]    |
[INFO] [stderr] 34 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `body`
[INFO] [stderr]   --> src/frontend/fxfx.rs:67:27
[INFO] [stderr]    |
[INFO] [stderr] 67 |             FxFx::Native {body, ..} => unreachable!(),
[INFO] [stderr]    |                           ^^^^-
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: try removing the field
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/frontend/fxfx.rs:69:21
[INFO] [stderr]    |
[INFO] [stderr] 69 |                 let mut env = Rc::new(RefCell::new(Environment::from(closure)));
[INFO] [stderr]    |                     ----^^^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/frontend/resolver.rs:223:61
[INFO] [stderr]     |
[INFO] [stderr] 223 |     fn visit_binary_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stderr]     |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `paren`
[INFO] [stderr]    --> src/frontend/resolver.rs:229:50
[INFO] [stderr]     |
[INFO] [stderr] 229 |     fn visit_call_expr(&mut self, callee: &Expr, paren: &Token, arguments: &Vec<Expr>) -> Result<(), Error> {
[INFO] [stderr]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_paren`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/frontend/resolver.rs:237:49
[INFO] [stderr]     |
[INFO] [stderr] 237 |     fn visit_get_expr(&mut self, object: &Expr, name: &Token) -> Result<(), Error> {
[INFO] [stderr]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/frontend/resolver.rs:242:49
[INFO] [stderr]     |
[INFO] [stderr] 242 |     fn visit_set_expr(&mut self, object: &Expr, name: &Token, value: &Expr) -> Result<(),Error>{
[INFO] [stderr]     |                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `method`
[INFO] [stderr]    --> src/frontend/resolver.rs:248:53
[INFO] [stderr]     |
[INFO] [stderr] 248 |     fn visit_super_expr(&mut self, keyword: &Token, method: &Token) -> Result<(), Error> {
[INFO] [stderr]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_method`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `val`
[INFO] [stderr]    --> src/frontend/resolver.rs:271:38
[INFO] [stderr]     |
[INFO] [stderr] 271 |     fn visit_literal_expr(&mut self, val: &LiteralValue) -> Result<(), Error> {
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/frontend/resolver.rs:275:62
[INFO] [stderr]     |
[INFO] [stderr] 275 |     fn visit_logical_expr(&mut self, lhs: &Expr, rhs: &Expr, op: &Token) -> Result<(), Error> {
[INFO] [stderr]     |                                                              ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op`
[INFO] [stderr]    --> src/frontend/resolver.rs:281:36
[INFO] [stderr]     |
[INFO] [stderr] 281 |     fn visit_unary_expr(&mut self, op: &Token, rhs: &Expr) -> Result<(), Error> {
[INFO] [stderr]     |                                    ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stderr] 
[INFO] [stderr] warning: method `sync` is never used
[INFO] [stderr]    --> src/frontend/parser.rs:464:8
[INFO] [stderr]     |
[INFO] [stderr] 12  | impl Parser {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 464 |     fn sync(&mut self){
[INFO] [stderr]     |        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/frontend/parser.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let _ = self.consume(TokenType::Semicolon, "Expect ';' after variable declaration");
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/frontend/parser.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'if'.");
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/frontend/parser.rs:89:9
[INFO] [stderr]    |
[INFO] [stderr] 89 |         self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 89 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after if condition");
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/frontend/parser.rs:154:9
[INFO] [stderr]     |
[INFO] [stderr] 154 |         self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'while'.");
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/frontend/parser.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |         self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 156 |         let _ = self.consume(TokenType::RightParen,"Expect ')' after condition.");
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/frontend/parser.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 162 |         let _ = self.consume(TokenType::LeftParen, "Expect '(' after 'for'");
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/frontend/parser.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 176 |         let _ = self.consume(TokenType::Semicolon,"Expeect ';' after loop condition");
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: variable `readNum` should have a snake case name
[INFO] [stderr]   --> src/frontend/interpreter.rs:46:13
[INFO] [stderr]    |
[INFO] [stderr] 46 |         let readNum:FxUnit = FxUnit::Callable(
[INFO] [stderr]    |             ^^^^^^^ help: convert the identifier to snake case: `read_num`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `readString` should have a snake case name
[INFO] [stderr]   --> src/frontend/interpreter.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let readString:FxUnit = FxUnit::Callable(
[INFO] [stderr]    |             ^^^^^^^^^^ help: convert the identifier to snake case: `read_string`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/frontend/interpreter.rs:334:9
[INFO] [stderr]     |
[INFO] [stderr] 334 | /         self.exec_block(
[INFO] [stderr] 335 | |             statements,
[INFO] [stderr] 336 | |             Rc::new(RefCell::new(Environment::from(&self.env))),
[INFO] [stderr] 337 | |         );
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 334 |         let _ = self.exec_block(
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/frontend/interpreter.rs:440:9
[INFO] [stderr]     |
[INFO] [stderr] 440 |         self.env.borrow_mut().assign(name, class);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 440 |         let _ = self.env.borrow_mut().assign(name, class);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/frontend/resolver.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 |         stmt.accept(self);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 45 |         let _ = stmt.accept(self);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/frontend/resolver.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |         expr.accept(self);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let _ = expr.accept(self);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fxlang` (lib) generated 51 warnings (run `cargo fix --lib -p fxlang` to apply 13 suggestions)
[INFO] [stderr] warning: `fxlang` (lib test) generated 51 warnings (51 duplicates)
[INFO] [stderr] warning: unused import: `fxlang::frontend::expr::AstPrinter`
[INFO] [stderr]  --> src/bin/fxlang.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use fxlang::frontend::expr::AstPrinter;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::stdin`
[INFO] [stderr]   --> src/bin/fxlang.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::io::stdin;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fxlang` (bin "fxlang" test) generated 2 warnings (run `cargo fix --bin "fxlang" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fxlang-39cfe01fddcbdd27)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test frontend::expr::tests::default_test ... ok
[INFO] [stdout] test frontend::lexer::tests::default_test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- frontend::lexer::tests::default_test stdout ----
[INFO] [stdout] thread 'frontend::lexer::tests::default_test' panicked at src/frontend/lexer.rs:217:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 4
[INFO] [stdout]  right: 5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5891ee0a46da - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5891ee0a46da - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5891ee0a46da - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5891ee0a46da - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5891ee0cb1e3 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5891ee0cb1e3 - core::fmt::write::h7550c97b06c86515
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x5891ee0a18a3 - std::io::Write::write_fmt::h509ff860e5956e5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x5891ee0a4522 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5891ee0a5b3a - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5891ee0a5944 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5891ee071229 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x5891ee071229 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x5891ee0a61d8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x5891ee0a61d8 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5891ee0a5f9a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5891ee0a4bb9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5891ee0a5c2c - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5891ee021a60 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x5891ee021e2b - core::panicking::assert_failed_inner::h2ddf1fcc067fa858
[INFO] [stdout]   19:     0x5891ee03734c - core::panicking::assert_failed::h1686e2f58eecebc0
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:367:5
[INFO] [stdout]   20:     0x5891ee034b8f - fxlang::frontend::lexer::tests::default_test::h1c59afb133577516
[INFO] [stdout]                                at /opt/rustwide/workdir/src/frontend/lexer.rs:217:9
[INFO] [stdout]   21:     0x5891ee0345f7 - fxlang::frontend::lexer::tests::default_test::{{closure}}::h526238e8305abc17
[INFO] [stdout]                                at /opt/rustwide/workdir/src/frontend/lexer.rs:206:22
[INFO] [stdout]   22:     0x5891ee02bec6 - core::ops::function::FnOnce::call_once::hac88e56e3df4bf5d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5891ee075beb - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5891ee075beb - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   25:     0x5891ee075427 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   26:     0x5891ee075427 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5891ee075427 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x5891ee075427 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x5891ee075427 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5891ee075427 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   31:     0x5891ee075427 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   32:     0x5891ee03a704 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   33:     0x5891ee03a704 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x5891ee03ddce - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   35:     0x5891ee03ddce - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5891ee03ddce - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x5891ee03ddce - std::panicking::try::h8ddeca9d705f9069
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x5891ee03ddce - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5891ee03ddce - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   40:     0x5891ee03ddce - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5891ee0a9f2b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   42:     0x5891ee0a9f2b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   43:     0x5891ee0a9f2b - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x7358d31a5ac3 - <unknown>
[INFO] [stdout]   45:     0x7358d3236a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     frontend::lexer::tests::default_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "b6d8efb8016d5a7a04d2de8aba96977acf36b699ad29fde59cd200b09ee0c7e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d8efb8016d5a7a04d2de8aba96977acf36b699ad29fde59cd200b09ee0c7e1", kill_on_drop: false }`
[INFO] [stdout] b6d8efb8016d5a7a04d2de8aba96977acf36b699ad29fde59cd200b09ee0c7e1
