[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 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealansh%2Ffxlang" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/therealansh/fxlang on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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-4-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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82d715071046becb9fe7b62dd5ac8aa5835e43d955a1163decf20ac8cdcf2085
[INFO] running `Command { std: "docker" "start" "-a" "82d715071046becb9fe7b62dd5ac8aa5835e43d955a1163decf20ac8cdcf2085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82d715071046becb9fe7b62dd5ac8aa5835e43d955a1163decf20ac8cdcf2085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d715071046becb9fe7b62dd5ac8aa5835e43d955a1163decf20ac8cdcf2085", kill_on_drop: false }`
[INFO] [stdout] 82d715071046becb9fe7b62dd5ac8aa5835e43d955a1163decf20ac8cdcf2085
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08e845552a332ac00010b194fa5f0af451ab235d12bc0fd193ccb89fb450bf89
[INFO] running `Command { std: "docker" "start" "-a" "08e845552a332ac00010b194fa5f0af451ab235d12bc0fd193ccb89fb450bf89", 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] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[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: 51 warnings emitted
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "08e845552a332ac00010b194fa5f0af451ab235d12bc0fd193ccb89fb450bf89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08e845552a332ac00010b194fa5f0af451ab235d12bc0fd193ccb89fb450bf89", kill_on_drop: false }`
[INFO] [stdout] 08e845552a332ac00010b194fa5f0af451ab235d12bc0fd193ccb89fb450bf89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97213e81c6d11bf8baaa604d4ed0e38fb74a02920312675c6b0637ca57801aed
[INFO] running `Command { std: "docker" "start" "-a" "97213e81c6d11bf8baaa604d4ed0e38fb74a02920312675c6b0637ca57801aed", 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] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[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] [stderr]    Compiling fxlang v0.1.0 (/opt/rustwide/workdir)
[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: 51 warnings emitted
[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] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[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: 2 warnings emitted
[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: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "97213e81c6d11bf8baaa604d4ed0e38fb74a02920312675c6b0637ca57801aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97213e81c6d11bf8baaa604d4ed0e38fb74a02920312675c6b0637ca57801aed", kill_on_drop: false }`
[INFO] [stdout] 97213e81c6d11bf8baaa604d4ed0e38fb74a02920312675c6b0637ca57801aed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7abe757298d5744d5f6a82a29816989aba4266fd01bfdf5daaf35990bb98c1fd
[INFO] running `Command { std: "docker" "start" "-a" "7abe757298d5744d5f6a82a29816989aba4266fd01bfdf5daaf35990bb98c1fd", 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] 472 |                 | TokenType::Var
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^
[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 36 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 [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fxlang-b32d54f204b849fb)
[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:     0x561644cbfbec - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x561644cbfbec - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x561644cbfbec - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x561644cbfbec - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x561644cead00 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x561644cead00 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x561644cbd59f - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x561644cbf9d4 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x561644cbf9d4 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x561644cc1697 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x561644cc1383 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x561644c91d97 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x561644c91d97 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x561644cc1ca8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x561644cc1ca8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x561644cc19fe - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x561644cc00b6 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x561644cc1762 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x561644c43cf5 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x561644c4410b - core::panicking::assert_failed_inner::h0bba8b7c26ee4492
[INFO] [stdout]   20:     0x561644c5571e - core::panicking::assert_failed::h0f8f19d5b518d276
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:279:5
[INFO] [stdout]   21:     0x561644c4d7ba - fxlang::frontend::lexer::tests::default_test::haa3bf82f35a79f0c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/frontend/lexer.rs:217:9
[INFO] [stdout]   22:     0x561644c4d1f7 - fxlang::frontend::lexer::tests::default_test::{{closure}}::hac92f2c3999e9674
[INFO] [stdout]                                at /opt/rustwide/workdir/src/frontend/lexer.rs:206:22
[INFO] [stdout]   23:     0x561644c59646 - core::ops::function::FnOnce::call_once::h467a4da86243cabb
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x561644c973ef - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x561644c973ef - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   26:     0x561644c96405 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   27:     0x561644c96405 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x561644c96405 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x561644c96405 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x561644c96405 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x561644c96405 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   32:     0x561644c96405 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   33:     0x561644c5e6c6 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   34:     0x561644c5e6c6 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   35:     0x561644c63777 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x561644c63777 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x561644c63777 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x561644c63777 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x561644c63777 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x561644c63777 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x561644c63777 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x561644cc6735 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   43:     0x561644cc6735 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   44:     0x561644cc6735 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f7c56ed2ac3 - <unknown>
[INFO] [stdout]   46:     0x7f7c56f63bf4 - __clone
[INFO] [stdout]   47:                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 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "7abe757298d5744d5f6a82a29816989aba4266fd01bfdf5daaf35990bb98c1fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7abe757298d5744d5f6a82a29816989aba4266fd01bfdf5daaf35990bb98c1fd", kill_on_drop: false }`
[INFO] [stdout] 7abe757298d5744d5f6a82a29816989aba4266fd01bfdf5daaf35990bb98c1fd
[INFO] testing therealansh/fxlang against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftherealansh%2Ffxlang" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/therealansh/fxlang on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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-4-tc2/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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09ae4a6c5eee71c000a7bec2176d3641f8fdc67e06edef0c7bf029452a51e3c1
[INFO] running `Command { std: "docker" "start" "-a" "09ae4a6c5eee71c000a7bec2176d3641f8fdc67e06edef0c7bf029452a51e3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09ae4a6c5eee71c000a7bec2176d3641f8fdc67e06edef0c7bf029452a51e3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ae4a6c5eee71c000a7bec2176d3641f8fdc67e06edef0c7bf029452a51e3c1", kill_on_drop: false }`
[INFO] [stdout] 09ae4a6c5eee71c000a7bec2176d3641f8fdc67e06edef0c7bf029452a51e3c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e0c3769948d66a44b20f05b6c389ff4379673bbfab3375930c0a4223ab972c2
[INFO] running `Command { std: "docker" "start" "-a" "0e0c3769948d66a44b20f05b6c389ff4379673bbfab3375930c0a4223ab972c2", 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] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[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: 51 warnings emitted
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "0e0c3769948d66a44b20f05b6c389ff4379673bbfab3375930c0a4223ab972c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e0c3769948d66a44b20f05b6c389ff4379673bbfab3375930c0a4223ab972c2", kill_on_drop: false }`
[INFO] [stdout] 0e0c3769948d66a44b20f05b6c389ff4379673bbfab3375930c0a4223ab972c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c5de01d521bd73cb31fc7b4577b4a416f36111d475d79f0c34292edab053f35
[INFO] running `Command { std: "docker" "start" "-a" "4c5de01d521bd73cb31fc7b4577b4a416f36111d475d79f0c34292edab053f35", 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] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling fxlang v0.1.0 (/opt/rustwide/workdir)
[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: 51 warnings emitted
[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] 472 |                 | TokenType::Var
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "4c5de01d521bd73cb31fc7b4577b4a416f36111d475d79f0c34292edab053f35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c5de01d521bd73cb31fc7b4577b4a416f36111d475d79f0c34292edab053f35", kill_on_drop: false }`
[INFO] [stdout] 4c5de01d521bd73cb31fc7b4577b4a416f36111d475d79f0c34292edab053f35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cfc5609feef3f0dfb1bb05221683e3dcec61a6033532265484edb2cb51e26f1
[INFO] running `Command { std: "docker" "start" "-a" "4cfc5609feef3f0dfb1bb05221683e3dcec61a6033532265484edb2cb51e26f1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::frontend::expr::Expr::Literal`
[INFO] [stdout] 
[INFO] [stderr]  --> src/frontend/parser.rs:4:5
[INFO] [stdout] running 2 tests
[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] 472 |                 | TokenType::Var
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^
[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 36 suggestions)
[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] warning: `fxlang` (lib test) generated 51 warnings (51 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fxlang-af7c4fe3ebcc6184)
[INFO] [stdout] test frontend::expr::tests::default_test ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[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:     0x55615db43c66 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55615db43c66 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55615db43c66 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55615db43c66 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55615db6e060 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55615db6e060 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55615db416cf - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x55615db43a44 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55615db43a44 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55615db457b7 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x55615db4549d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55615db15677 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h616ac37fa3cd6c8f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x55615db15677 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x55615db45dd6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcb3fe3b9bb537ba8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x55615db45dd6 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x55615db45b22 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x55615db44166 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x55615db45880 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x55615dac4cd5 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55615dac510b - core::panicking::assert_failed_inner::h9f13e27dd63c3a08
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:342:17
[INFO] [stdout]   20:     0x55615daddc4e - core::panicking::assert_failed::h38aaf2501c46d4f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:297:5
[INFO] [stdout]   21:     0x55615dad563d - fxlang::frontend::lexer::tests::default_test::h55e0335c88a4d575
[INFO] [stdout]                                at /opt/rustwide/workdir/src/frontend/lexer.rs:217:9
[INFO] [stdout]   22:     0x55615dad5077 - fxlang::frontend::lexer::tests::default_test::{{closure}}::h2fbc7513c64f9adf
[INFO] [stdout]                                at /opt/rustwide/workdir/src/frontend/lexer.rs:206:22
[INFO] [stdout]   23:     0x55615dacb046 - core::ops::function::FnOnce::call_once::h2a99fecd702ad090
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x55615db1af4f - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55615db1af4f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   26:     0x55615db19cd1 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   27:     0x55615db19cd1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x55615db19cd1 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   29:     0x55615db19cd1 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   30:     0x55615db19cd1 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x55615db19cd1 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   32:     0x55615db19cd1 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   33:     0x55615dae1006 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   34:     0x55615dae1006 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x55615dae6067 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   36:     0x55615dae6067 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x55615dae6067 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   38:     0x55615dae6067 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   39:     0x55615dae6067 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x55615dae6067 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   41:     0x55615dae6067 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x55615db4a885 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d7c8f150ab9c84c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   43:     0x55615db4a885 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h570d5b005c242c15
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   44:     0x55615db4a885 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7f8357dc9ac3 - <unknown>
[INFO] [stdout]   46:     0x7f8357e5abf4 - __clone
[INFO] [stdout]   47:                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 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4cfc5609feef3f0dfb1bb05221683e3dcec61a6033532265484edb2cb51e26f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cfc5609feef3f0dfb1bb05221683e3dcec61a6033532265484edb2cb51e26f1", kill_on_drop: false }`
[INFO] [stdout] 4cfc5609feef3f0dfb1bb05221683e3dcec61a6033532265484edb2cb51e26f1
