[INFO] cloning repository https://github.com/cociorbaandrei/lux-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cociorbaandrei/lux-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcociorbaandrei%2Flux-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcociorbaandrei%2Flux-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e0f675cf3d7bea8ad548722c9762ad0b6440b9d
[INFO] testing cociorbaandrei/lux-interpreter against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcociorbaandrei%2Flux-interpreter" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cociorbaandrei/lux-interpreter on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cociorbaandrei/lux-interpreter
[INFO] finished tweaking git repo https://github.com/cociorbaandrei/lux-interpreter
[INFO] tweaked toml for git repo https://github.com/cociorbaandrei/lux-interpreter written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cociorbaandrei/lux-interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88073ffc097c82fa85daf27849e9feaa76805d1fb48e6365c8888ad671c09913
[INFO] running `Command { std: "docker" "start" "-a" "88073ffc097c82fa85daf27849e9feaa76805d1fb48e6365c8888ad671c09913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88073ffc097c82fa85daf27849e9feaa76805d1fb48e6365c8888ad671c09913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88073ffc097c82fa85daf27849e9feaa76805d1fb48e6365c8888ad671c09913", kill_on_drop: false }`
[INFO] [stdout] 88073ffc097c82fa85daf27849e9feaa76805d1fb48e6365c8888ad671c09913
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69dd9532a25034ae98d73880efdd9eaad6ff943f8391f8d408994118c764b7ba
[INFO] running `Command { std: "docker" "start" "-a" "69dd9532a25034ae98d73880efdd9eaad6ff943f8391f8d408994118c764b7ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling bytes v1.7.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling codecrafters-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Parser` and `tokenizer::Tokenizer`
[INFO] [stdout]  --> src/interpreter.rs:2:36
[INFO] [stdout]   |
[INFO] [stdout] 2 |     parser::{Expression, Operator, Parser, Statement},
[INFO] [stdout]   |                                    ^^^^^^
[INFO] [stdout] 3 |     tokenizer::Tokenizer,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/interpreter.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{collections::HashMap, hash::Hash, ops::Add};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/interpreter.rs:111:15
[INFO] [stdout]     |
[INFO] [stdout] 111 |         match (self) {
[INFO] [stdout]     |               ^    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         match (self) {
[INFO] [stdout] 111 +         match self {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Number(-x)),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 112 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Number(-x)),
[INFO] [stdout] 112 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Number(-x)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 113 -             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout] 113 +             RuntimeValue::Boolean(x) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout] 114 +             RuntimeValue::String(x) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/interpreter.rs:120:15
[INFO] [stdout]     |
[INFO] [stdout] 120 |         match (self) {
[INFO] [stdout]     |               ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 120 -         match (self) {
[INFO] [stdout] 120 +         match self {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 121 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout] 121 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 122 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout] 122 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 123 -             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout] 123 +             RuntimeValue::Boolean(x) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout] 124 +             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/interpreter.rs:143:42
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 Ok(RuntimeValue::Boolean((x && (y > 0.0))))
[INFO] [stdout]     |                                          ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 143 -                 Ok(RuntimeValue::Boolean((x && (y > 0.0))))
[INFO] [stdout] 143 +                 Ok(RuntimeValue::Boolean(x && (y > 0.0)))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Binary`
[INFO] [stdout]  --> src/parser.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Binary;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tokenizer::Tokenizer`
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::tokenizer::Tokenizer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Error`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/tokenizer.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Ok`
[INFO] [stdout]  --> src/tokenizer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use anyhow::Ok;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Result`
[INFO] [stdout]  --> src/tokenizer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use anyhow::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::Expression`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use parser::Expression;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::arch::x86_64`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::arch::x86_64;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/tokenizer.rs:75:29
[INFO] [stdout]    |
[INFO] [stdout] 67 | / ...                   return Some(Token::Error(format!(
[INFO] [stdout] 68 | | ...                       "[line {}] Error: Unterminated string.",
[INFO] [stdout] 69 | | ...                       self.line
[INFO] [stdout] 70 | | ...                   )));
[INFO] [stdout]    | |_________________________- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 75 |   ...                   continue;
[INFO] [stdout]    |                         ^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/tokenizer.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:41:35
[INFO] [stdout]    |
[INFO] [stdout] 41 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/interpreter.rs:41:60
[INFO] [stdout]    |
[INFO] [stdout] 41 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/interpreter.rs:72:60
[INFO] [stdout]    |
[INFO] [stdout] 72 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:103:35
[INFO] [stdout]     |
[INFO] [stdout] 103 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/interpreter.rs:103:60
[INFO] [stdout]     |
[INFO] [stdout] 103 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]     |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:114:35
[INFO] [stdout]     |
[INFO] [stdout] 114 |             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:122:14
[INFO] [stdout]     |
[INFO] [stdout] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |              ----------------------- matches all the relevant values
[INFO] [stdout] 122 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |              ----------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 125 |             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(x > 0.0)),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout]     |              ------------------------ matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 126 |             RuntimeValue::Boolean(x) => Ok(RuntimeValue::Boolean(x)),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |              ----------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 127 |             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:124:35
[INFO] [stdout]     |
[INFO] [stdout] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:127:34
[INFO] [stdout]     |
[INFO] [stdout] 127 |             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/interpreter.rs:277:32
[INFO] [stdout]     |
[INFO] [stdout] 277 |             Expression::Binary(left, Operator::Power, right) => todo!(),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/interpreter.rs:277:55
[INFO] [stdout]     |
[INFO] [stdout] 277 |             Expression::Binary(left, Operator::Power, right) => todo!(),
[INFO] [stdout]     |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/interpreter.rs:294:32
[INFO] [stdout]     |
[INFO] [stdout] 294 |             Expression::Binary(left, Operator::Or, right) => todo!(),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/interpreter.rs:294:52
[INFO] [stdout]     |
[INFO] [stdout] 294 |             Expression::Binary(left, Operator::Or, right) => todo!(),
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/parser.rs:103:32
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Expression::Assign(s, e) => todo!(),
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:103:35
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Expression::Assign(s, e) => todo!(),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/parser.rs:341:36
[INFO] [stdout]     |
[INFO] [stdout] 341 |             Some(Token::Identifier(s, _, _, _)) => {
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:347:21
[INFO] [stdout]     |
[INFO] [stdout] 347 |                 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: unused variable: `print`
[INFO] [stdout]    --> src/parser.rs:353:13
[INFO] [stdout]     |
[INFO] [stdout] 353 |         let print = self.iter.next().context("Expected print keyword.")?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:361:13
[INFO] [stdout]     |
[INFO] [stdout] 361 |         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `next` is never read
[INFO] [stdout]    --> src/parser.rs:375:17
[INFO] [stdout]     |
[INFO] [stdout] 375 |         let mut next = self.iter.next().context("Expected var declaration.")?;
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:384:29
[INFO] [stdout]     |
[INFO] [stdout] 384 |                         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:388:29
[INFO] [stdout]     |
[INFO] [stdout] 388 |                         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/parser.rs:407:24
[INFO] [stdout]     |
[INFO] [stdout] 407 |         while let Some(token) = self.iter.peek() {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/parser.rs:430:17
[INFO] [stdout]     |
[INFO] [stdout] 430 |     fn try_from(value: Token) -> Result<Self, Self::Error> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:51:38
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Token::LeftParen(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:51:44
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Token::LeftParen(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:54:39
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Token::RightParen(lexeme, line, col) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:54:45
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Token::RightParen(lexeme, line, col) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:57:38
[INFO] [stdout]    |
[INFO] [stdout] 57 |             Token::LeftBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:57:44
[INFO] [stdout]    |
[INFO] [stdout] 57 |             Token::LeftBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:60:39
[INFO] [stdout]    |
[INFO] [stdout] 60 |             Token::RightBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |             Token::RightBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:63:33
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Token::Star(lexeme, line, col) => write!(f, "{} {} {}", "STAR", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:63:39
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Token::Star(lexeme, line, col) => write!(f, "{} {} {}", "STAR", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:64:32
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Token::Dot(lexeme, line, col) => write!(f, "{} {} {}", "DOT", lexeme, "null"),
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:64:38
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Token::Dot(lexeme, line, col) => write!(f, "{} {} {}", "DOT", lexeme, "null"),
[INFO] [stdout]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Token::Comma(lexeme, line, col) => write!(f, "{} {} {}", "COMMA", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:65:40
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Token::Comma(lexeme, line, col) => write!(f, "{} {} {}", "COMMA", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:66:33
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Token::Plus(lexeme, line, col) => write!(f, "{} {} {}", "PLUS", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:66:39
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Token::Plus(lexeme, line, col) => write!(f, "{} {} {}", "PLUS", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:67:34
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Token::Minus(lexeme, line, col) => write!(f, "{} {} {}", "MINUS", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:67:40
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Token::Minus(lexeme, line, col) => write!(f, "{} {} {}", "MINUS", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:68:38
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Token::Semicolon(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:68:44
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Token::Semicolon(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Token::Slash(lexeme, line, col) => write!(f, "{} {} {}", "SLASH", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:71:40
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Token::Slash(lexeme, line, col) => write!(f, "{} {} {}", "SLASH", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Token::Number(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:72:41
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Token::Number(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:83:39
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:83:45
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> src/token.rs:83:50
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:86:34
[INFO] [stdout]    |
[INFO] [stdout] 86 |             Token::Equal(lexeme, line, col) => write!(f, "{} {} {}", "EQUAL", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:86:40
[INFO] [stdout]    |
[INFO] [stdout] 86 |             Token::Equal(lexeme, line, col) => write!(f, "{} {} {}", "EQUAL", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:87:39
[INFO] [stdout]    |
[INFO] [stdout] 87 |             Token::EqualEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 |             Token::EqualEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Token::Colon(lexeme, line, col) => write!(f, "{} {} {}", "COLON", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:90:40
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Token::Colon(lexeme, line, col) => write!(f, "{} {} {}", "COLON", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:91:33
[INFO] [stdout]    |
[INFO] [stdout] 91 |             Token::Bang(lexeme, line, col) => write!(f, "{} {} {}", "BANG", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:91:39
[INFO] [stdout]    |
[INFO] [stdout] 91 |             Token::Bang(lexeme, line, col) => write!(f, "{} {} {}", "BANG", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:92:38
[INFO] [stdout]    |
[INFO] [stdout] 92 |             Token::BangEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:92:44
[INFO] [stdout]    |
[INFO] [stdout] 92 |             Token::BangEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:95:33
[INFO] [stdout]    |
[INFO] [stdout] 95 |             Token::Less(lexeme, line, col) => write!(f, "{} {} {}", "LESS", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:95:39
[INFO] [stdout]    |
[INFO] [stdout] 95 |             Token::Less(lexeme, line, col) => write!(f, "{} {} {}", "LESS", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:96:38
[INFO] [stdout]    |
[INFO] [stdout] 96 |             Token::LessEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:96:44
[INFO] [stdout]    |
[INFO] [stdout] 96 |             Token::LessEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:99:36
[INFO] [stdout]    |
[INFO] [stdout] 99 |             Token::Greater(lexeme, line, col) => write!(f, "{} {} {}", "GREATER", lexeme, "null"),
[INFO] [stdout]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:99:42
[INFO] [stdout]    |
[INFO] [stdout] 99 |             Token::Greater(lexeme, line, col) => write!(f, "{} {} {}", "GREATER", lexeme, "null"),
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:100:41
[INFO] [stdout]     |
[INFO] [stdout] 100 |             Token::GreaterEqual(lexeme, line, col) => {
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:100:47
[INFO] [stdout]     |
[INFO] [stdout] 100 |             Token::GreaterEqual(lexeme, line, col) => {
[INFO] [stdout]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:103:35
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Token::String(lexeme, line, col, ident) => {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:103:41
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Token::String(lexeme, line, col, ident) => {
[INFO] [stdout]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:106:32
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token::And(lexeme, line, col) => write!(f, "{} {} {}", "AND", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:106:38
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token::And(lexeme, line, col) => write!(f, "{} {} {}", "AND", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:107:34
[INFO] [stdout]     |
[INFO] [stdout] 107 |             Token::Class(lexeme, line, col) => write!(f, "{} {} {}", "CLASS", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:107:40
[INFO] [stdout]     |
[INFO] [stdout] 107 |             Token::Class(lexeme, line, col) => write!(f, "{} {} {}", "CLASS", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:108:33
[INFO] [stdout]     |
[INFO] [stdout] 108 |             Token::Else(lexeme, line, col) => write!(f, "{} {} {}", "ELSE", lexeme, "null"),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:108:39
[INFO] [stdout]     |
[INFO] [stdout] 108 |             Token::Else(lexeme, line, col) => write!(f, "{} {} {}", "ELSE", lexeme, "null"),
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |             Token::False(lexeme, line, col) => write!(f, "{} {} {}", "FALSE", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:109:40
[INFO] [stdout]     |
[INFO] [stdout] 109 |             Token::False(lexeme, line, col) => write!(f, "{} {} {}", "FALSE", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:110:32
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token::For(lexeme, line, col) => write!(f, "{} {} {}", "FOR", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:110:38
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token::For(lexeme, line, col) => write!(f, "{} {} {}", "FOR", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |             Token::Fun(lexeme, line, col) => write!(f, "{} {} {}", "FUN", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:111:38
[INFO] [stdout]     |
[INFO] [stdout] 111 |             Token::Fun(lexeme, line, col) => write!(f, "{} {} {}", "FUN", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:112:31
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Token::If(lexeme, line, col) => write!(f, "{} {} {}", "IF", lexeme, "null"),
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:112:37
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Token::If(lexeme, line, col) => write!(f, "{} {} {}", "IF", lexeme, "null"),
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Token::Nil(lexeme, line, col) => write!(f, "{} {} {}", "NIL", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:113:38
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Token::Nil(lexeme, line, col) => write!(f, "{} {} {}", "NIL", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:114:31
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token::Or(lexeme, line, col) => write!(f, "{} {} {}", "OR", lexeme, "null"),
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:114:37
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token::Or(lexeme, line, col) => write!(f, "{} {} {}", "OR", lexeme, "null"),
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:115:34
[INFO] [stdout]     |
[INFO] [stdout] 115 |             Token::Print(lexeme, line, col) => write!(f, "{} {} {}", "PRINT", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:115:40
[INFO] [stdout]     |
[INFO] [stdout] 115 |             Token::Print(lexeme, line, col) => write!(f, "{} {} {}", "PRINT", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |             Token::Return(lexeme, line, col) => write!(f, "{} {} {}", "RETURN", lexeme, "null"),
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:116:41
[INFO] [stdout]     |
[INFO] [stdout] 116 |             Token::Return(lexeme, line, col) => write!(f, "{} {} {}", "RETURN", lexeme, "null"),
[INFO] [stdout]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:117:34
[INFO] [stdout]     |
[INFO] [stdout] 117 |             Token::Super(lexeme, line, col) => write!(f, "{} {} {}", "SUPER", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:117:40
[INFO] [stdout]     |
[INFO] [stdout] 117 |             Token::Super(lexeme, line, col) => write!(f, "{} {} {}", "SUPER", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:118:33
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token::This(lexeme, line, col) => write!(f, "{} {} {}", "THIS", lexeme, "null"),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:118:39
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token::This(lexeme, line, col) => write!(f, "{} {} {}", "THIS", lexeme, "null"),
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:119:33
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Token::True(lexeme, line, col) => write!(f, "{} {} {}", "TRUE", lexeme, "null"),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:119:39
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Token::True(lexeme, line, col) => write!(f, "{} {} {}", "TRUE", lexeme, "null"),
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:120:32
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Token::Var(lexeme, line, col) => write!(f, "{} {} {}", "VAR", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:120:38
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Token::Var(lexeme, line, col) => write!(f, "{} {} {}", "VAR", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:121:34
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Token::While(lexeme, line, col) => write!(f, "{} {} {}", "WHILE", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:121:40
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Token::While(lexeme, line, col) => write!(f, "{} {} {}", "WHILE", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         _ => {
[INFO] [stdout]     |                         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 89  |                         Ok(RuntimeValue::Number(x)) => {
[INFO] [stdout]     |                         --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 92  |                         Ok(RuntimeValue::String(x)) => {
[INFO] [stdout]     |                         --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 95  |                         Ok(RuntimeValue::Boolean(x)) => {
[INFO] [stdout]     |                         ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 98  |                         Ok(RuntimeValue::Nil) => {
[INFO] [stdout]     |                         --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 106 |                         _ => {
[INFO] [stdout]     |                         ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Power` is never constructed
[INFO] [stdout]   --> src/parser.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Operator {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Power,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Assign` is never constructed
[INFO] [stdout]   --> src/parser.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Expression {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Assign(String, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `assert_next`, `operator`, `peek`, and `next` are never used
[INFO] [stdout]    --> src/parser.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn assert_next(&mut self, token: Token) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn operator(&mut self) -> Result<Operator> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 421 |     fn peek(&mut self) -> Option<&Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 424 |     fn next(&mut self) -> Option<Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EndOfFile` is never constructed
[INFO] [stdout]   --> src/token.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum Token {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 45 |     EndOfFile,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:43:25
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         writeln!(io::stderr(), "{}", err);
[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]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   writeln!(io::stderr(), "{}", e);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 | ...                   writeln!(io::stderr(), "{}", e);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             writeln!(io::stderr(), "Unknown command: {}", command);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.59s
[INFO] running `Command { std: "docker" "inspect" "69dd9532a25034ae98d73880efdd9eaad6ff943f8391f8d408994118c764b7ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69dd9532a25034ae98d73880efdd9eaad6ff943f8391f8d408994118c764b7ba", kill_on_drop: false }`
[INFO] [stdout] 69dd9532a25034ae98d73880efdd9eaad6ff943f8391f8d408994118c764b7ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c9c043653328317c62c5030a2283deb128a47957f88f42921c88e761f00a289
[INFO] running `Command { std: "docker" "start" "-a" "0c9c043653328317c62c5030a2283deb128a47957f88f42921c88e761f00a289", kill_on_drop: false }`
[INFO] [stderr]    Compiling codecrafters-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/interpreter.rs:7:33
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{collections::HashMap, hash::Hash, ops::Add};
[INFO] [stdout]   |                                 ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/interpreter.rs:111:15
[INFO] [stdout]     |
[INFO] [stdout] 111 |         match (self) {
[INFO] [stdout]     |               ^    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 111 -         match (self) {
[INFO] [stdout] 111 +         match self {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Number(-x)),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 112 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Number(-x)),
[INFO] [stdout] 112 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Number(-x)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 113 -             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout] 113 +             RuntimeValue::Boolean(x) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:114:13
[INFO] [stdout]     |
[INFO] [stdout] 114 |             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 114 -             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout] 114 +             RuntimeValue::String(x) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/interpreter.rs:120:15
[INFO] [stdout]     |
[INFO] [stdout] 120 |         match (self) {
[INFO] [stdout]     |               ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 120 -         match (self) {
[INFO] [stdout] 120 +         match self {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:121:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 121 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout] 121 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 122 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout] 122 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:123:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 123 -             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout] 123 +             RuntimeValue::Boolean(x) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/interpreter.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |             ^                       ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout] 124 +             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/interpreter.rs:143:42
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 Ok(RuntimeValue::Boolean((x && (y > 0.0))))
[INFO] [stdout]     |                                          ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 143 -                 Ok(RuntimeValue::Boolean((x && (y > 0.0))))
[INFO] [stdout] 143 +                 Ok(RuntimeValue::Boolean(x && (y > 0.0)))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Binary`
[INFO] [stdout]  --> src/parser.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Binary;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parser`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Error`
[INFO] [stdout]  --> src/parser.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use anyhow::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expression::*`
[INFO] [stdout]    --> src/parser.rs:527:9
[INFO] [stdout]     |
[INFO] [stdout] 527 |     use Expression::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Operator::*`
[INFO] [stdout]    --> src/parser.rs:528:9
[INFO] [stdout]     |
[INFO] [stdout] 528 |     use Operator::*;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Expression::*`
[INFO] [stdout]    --> src/parser.rs:558:9
[INFO] [stdout]     |
[INFO] [stdout] 558 |     use Expression::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Operator::*`
[INFO] [stdout]    --> src/parser.rs:559:9
[INFO] [stdout]     |
[INFO] [stdout] 559 |     use Operator::*;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/tokenizer.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Ok`
[INFO] [stdout]  --> src/tokenizer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use anyhow::Ok;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `anyhow::Result`
[INFO] [stdout]  --> src/tokenizer.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use anyhow::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser::Expression`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use parser::Expression;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::arch::x86_64`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::arch::x86_64;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/tokenizer.rs:75:29
[INFO] [stdout]    |
[INFO] [stdout] 67 | / ...                   return Some(Token::Error(format!(
[INFO] [stdout] 68 | | ...                       "[line {}] Error: Unterminated string.",
[INFO] [stdout] 69 | | ...                       self.line
[INFO] [stdout] 70 | | ...                   )));
[INFO] [stdout]    | |_________________________- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 75 |   ...                   continue;
[INFO] [stdout]    |                         ^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/tokenizer.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:41:35
[INFO] [stdout]    |
[INFO] [stdout] 41 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/interpreter.rs:41:60
[INFO] [stdout]    |
[INFO] [stdout] 41 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/interpreter.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/interpreter.rs:72:60
[INFO] [stdout]    |
[INFO] [stdout] 72 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:103:35
[INFO] [stdout]     |
[INFO] [stdout] 103 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/interpreter.rs:103:60
[INFO] [stdout]     |
[INFO] [stdout] 103 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stdout]     |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:114:35
[INFO] [stdout]     |
[INFO] [stdout] 114 |             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:122:14
[INFO] [stdout]     |
[INFO] [stdout] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |              ----------------------- matches all the relevant values
[INFO] [stdout] 122 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stdout]     |              ----------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 125 |             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(x > 0.0)),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:126:13
[INFO] [stdout]     |
[INFO] [stdout] 123 |             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stdout]     |              ------------------------ matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 126 |             RuntimeValue::Boolean(x) => Ok(RuntimeValue::Boolean(x)),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |              ----------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 127 |             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:124:35
[INFO] [stdout]     |
[INFO] [stdout] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/interpreter.rs:127:34
[INFO] [stdout]     |
[INFO] [stdout] 127 |             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stdout]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/interpreter.rs:277:32
[INFO] [stdout]     |
[INFO] [stdout] 277 |             Expression::Binary(left, Operator::Power, right) => todo!(),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/interpreter.rs:277:55
[INFO] [stdout]     |
[INFO] [stdout] 277 |             Expression::Binary(left, Operator::Power, right) => todo!(),
[INFO] [stdout]     |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `left`
[INFO] [stdout]    --> src/interpreter.rs:294:32
[INFO] [stdout]     |
[INFO] [stdout] 294 |             Expression::Binary(left, Operator::Or, right) => todo!(),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `right`
[INFO] [stdout]    --> src/interpreter.rs:294:52
[INFO] [stdout]     |
[INFO] [stdout] 294 |             Expression::Binary(left, Operator::Or, right) => todo!(),
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/parser.rs:103:32
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Expression::Assign(s, e) => todo!(),
[INFO] [stdout]     |                                ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/parser.rs:103:35
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Expression::Assign(s, e) => todo!(),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/parser.rs:341:36
[INFO] [stdout]     |
[INFO] [stdout] 341 |             Some(Token::Identifier(s, _, _, _)) => {
[INFO] [stdout]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:347:21
[INFO] [stdout]     |
[INFO] [stdout] 347 |                 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: unused variable: `print`
[INFO] [stdout]    --> src/parser.rs:353:13
[INFO] [stdout]     |
[INFO] [stdout] 353 |         let print = self.iter.next().context("Expected print keyword.")?;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_print`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:355:13
[INFO] [stdout]     |
[INFO] [stdout] 355 |         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:361:13
[INFO] [stdout]     |
[INFO] [stdout] 361 |         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `next` is never read
[INFO] [stdout]    --> src/parser.rs:375:17
[INFO] [stdout]     |
[INFO] [stdout] 375 |         let mut next = self.iter.next().context("Expected var declaration.")?;
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:384:29
[INFO] [stdout]     |
[INFO] [stdout] 384 |                         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semi`
[INFO] [stdout]    --> src/parser.rs:388:29
[INFO] [stdout]     |
[INFO] [stdout] 388 |                         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `token`
[INFO] [stdout]    --> src/parser.rs:407:24
[INFO] [stdout]     |
[INFO] [stdout] 407 |         while let Some(token) = self.iter.peek() {
[INFO] [stdout]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/parser.rs:430:17
[INFO] [stdout]     |
[INFO] [stdout] 430 |     fn try_from(value: Token) -> Result<Self, Self::Error> {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:51:38
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Token::LeftParen(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:51:44
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Token::LeftParen(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:54:39
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Token::RightParen(lexeme, line, col) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:54:45
[INFO] [stdout]    |
[INFO] [stdout] 54 |             Token::RightParen(lexeme, line, col) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:57:38
[INFO] [stdout]    |
[INFO] [stdout] 57 |             Token::LeftBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:57:44
[INFO] [stdout]    |
[INFO] [stdout] 57 |             Token::LeftBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:60:39
[INFO] [stdout]    |
[INFO] [stdout] 60 |             Token::RightBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:60:45
[INFO] [stdout]    |
[INFO] [stdout] 60 |             Token::RightBrace(lexeme, line, col) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:63:33
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Token::Star(lexeme, line, col) => write!(f, "{} {} {}", "STAR", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:63:39
[INFO] [stdout]    |
[INFO] [stdout] 63 |             Token::Star(lexeme, line, col) => write!(f, "{} {} {}", "STAR", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:64:32
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Token::Dot(lexeme, line, col) => write!(f, "{} {} {}", "DOT", lexeme, "null"),
[INFO] [stdout]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:64:38
[INFO] [stdout]    |
[INFO] [stdout] 64 |             Token::Dot(lexeme, line, col) => write!(f, "{} {} {}", "DOT", lexeme, "null"),
[INFO] [stdout]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Token::Comma(lexeme, line, col) => write!(f, "{} {} {}", "COMMA", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:65:40
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Token::Comma(lexeme, line, col) => write!(f, "{} {} {}", "COMMA", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:66:33
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Token::Plus(lexeme, line, col) => write!(f, "{} {} {}", "PLUS", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:66:39
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Token::Plus(lexeme, line, col) => write!(f, "{} {} {}", "PLUS", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:67:34
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Token::Minus(lexeme, line, col) => write!(f, "{} {} {}", "MINUS", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:67:40
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Token::Minus(lexeme, line, col) => write!(f, "{} {} {}", "MINUS", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:68:38
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Token::Semicolon(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:68:44
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Token::Semicolon(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:71:34
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Token::Slash(lexeme, line, col) => write!(f, "{} {} {}", "SLASH", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:71:40
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Token::Slash(lexeme, line, col) => write!(f, "{} {} {}", "SLASH", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:72:35
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Token::Number(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:72:41
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Token::Number(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:83:39
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:83:45
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]   --> src/token.rs:83:50
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stdout]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:86:34
[INFO] [stdout]    |
[INFO] [stdout] 86 |             Token::Equal(lexeme, line, col) => write!(f, "{} {} {}", "EQUAL", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:86:40
[INFO] [stdout]    |
[INFO] [stdout] 86 |             Token::Equal(lexeme, line, col) => write!(f, "{} {} {}", "EQUAL", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:87:39
[INFO] [stdout]    |
[INFO] [stdout] 87 |             Token::EqualEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:87:45
[INFO] [stdout]    |
[INFO] [stdout] 87 |             Token::EqualEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:90:34
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Token::Colon(lexeme, line, col) => write!(f, "{} {} {}", "COLON", lexeme, "null"),
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:90:40
[INFO] [stdout]    |
[INFO] [stdout] 90 |             Token::Colon(lexeme, line, col) => write!(f, "{} {} {}", "COLON", lexeme, "null"),
[INFO] [stdout]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:91:33
[INFO] [stdout]    |
[INFO] [stdout] 91 |             Token::Bang(lexeme, line, col) => write!(f, "{} {} {}", "BANG", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:91:39
[INFO] [stdout]    |
[INFO] [stdout] 91 |             Token::Bang(lexeme, line, col) => write!(f, "{} {} {}", "BANG", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:92:38
[INFO] [stdout]    |
[INFO] [stdout] 92 |             Token::BangEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:92:44
[INFO] [stdout]    |
[INFO] [stdout] 92 |             Token::BangEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:95:33
[INFO] [stdout]    |
[INFO] [stdout] 95 |             Token::Less(lexeme, line, col) => write!(f, "{} {} {}", "LESS", lexeme, "null"),
[INFO] [stdout]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:95:39
[INFO] [stdout]    |
[INFO] [stdout] 95 |             Token::Less(lexeme, line, col) => write!(f, "{} {} {}", "LESS", lexeme, "null"),
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:96:38
[INFO] [stdout]    |
[INFO] [stdout] 96 |             Token::LessEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:96:44
[INFO] [stdout]    |
[INFO] [stdout] 96 |             Token::LessEqual(lexeme, line, col) => {
[INFO] [stdout]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/token.rs:99:36
[INFO] [stdout]    |
[INFO] [stdout] 99 |             Token::Greater(lexeme, line, col) => write!(f, "{} {} {}", "GREATER", lexeme, "null"),
[INFO] [stdout]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]   --> src/token.rs:99:42
[INFO] [stdout]    |
[INFO] [stdout] 99 |             Token::Greater(lexeme, line, col) => write!(f, "{} {} {}", "GREATER", lexeme, "null"),
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:100:41
[INFO] [stdout]     |
[INFO] [stdout] 100 |             Token::GreaterEqual(lexeme, line, col) => {
[INFO] [stdout]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:100:47
[INFO] [stdout]     |
[INFO] [stdout] 100 |             Token::GreaterEqual(lexeme, line, col) => {
[INFO] [stdout]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:103:35
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Token::String(lexeme, line, col, ident) => {
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:103:41
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Token::String(lexeme, line, col, ident) => {
[INFO] [stdout]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:106:32
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token::And(lexeme, line, col) => write!(f, "{} {} {}", "AND", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:106:38
[INFO] [stdout]     |
[INFO] [stdout] 106 |             Token::And(lexeme, line, col) => write!(f, "{} {} {}", "AND", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:107:34
[INFO] [stdout]     |
[INFO] [stdout] 107 |             Token::Class(lexeme, line, col) => write!(f, "{} {} {}", "CLASS", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:107:40
[INFO] [stdout]     |
[INFO] [stdout] 107 |             Token::Class(lexeme, line, col) => write!(f, "{} {} {}", "CLASS", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:108:33
[INFO] [stdout]     |
[INFO] [stdout] 108 |             Token::Else(lexeme, line, col) => write!(f, "{} {} {}", "ELSE", lexeme, "null"),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:108:39
[INFO] [stdout]     |
[INFO] [stdout] 108 |             Token::Else(lexeme, line, col) => write!(f, "{} {} {}", "ELSE", lexeme, "null"),
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:109:34
[INFO] [stdout]     |
[INFO] [stdout] 109 |             Token::False(lexeme, line, col) => write!(f, "{} {} {}", "FALSE", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:109:40
[INFO] [stdout]     |
[INFO] [stdout] 109 |             Token::False(lexeme, line, col) => write!(f, "{} {} {}", "FALSE", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:110:32
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token::For(lexeme, line, col) => write!(f, "{} {} {}", "FOR", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:110:38
[INFO] [stdout]     |
[INFO] [stdout] 110 |             Token::For(lexeme, line, col) => write!(f, "{} {} {}", "FOR", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:111:32
[INFO] [stdout]     |
[INFO] [stdout] 111 |             Token::Fun(lexeme, line, col) => write!(f, "{} {} {}", "FUN", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:111:38
[INFO] [stdout]     |
[INFO] [stdout] 111 |             Token::Fun(lexeme, line, col) => write!(f, "{} {} {}", "FUN", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:112:31
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Token::If(lexeme, line, col) => write!(f, "{} {} {}", "IF", lexeme, "null"),
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:112:37
[INFO] [stdout]     |
[INFO] [stdout] 112 |             Token::If(lexeme, line, col) => write!(f, "{} {} {}", "IF", lexeme, "null"),
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:113:32
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Token::Nil(lexeme, line, col) => write!(f, "{} {} {}", "NIL", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:113:38
[INFO] [stdout]     |
[INFO] [stdout] 113 |             Token::Nil(lexeme, line, col) => write!(f, "{} {} {}", "NIL", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:114:31
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token::Or(lexeme, line, col) => write!(f, "{} {} {}", "OR", lexeme, "null"),
[INFO] [stdout]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:114:37
[INFO] [stdout]     |
[INFO] [stdout] 114 |             Token::Or(lexeme, line, col) => write!(f, "{} {} {}", "OR", lexeme, "null"),
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:115:34
[INFO] [stdout]     |
[INFO] [stdout] 115 |             Token::Print(lexeme, line, col) => write!(f, "{} {} {}", "PRINT", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:115:40
[INFO] [stdout]     |
[INFO] [stdout] 115 |             Token::Print(lexeme, line, col) => write!(f, "{} {} {}", "PRINT", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:116:35
[INFO] [stdout]     |
[INFO] [stdout] 116 |             Token::Return(lexeme, line, col) => write!(f, "{} {} {}", "RETURN", lexeme, "null"),
[INFO] [stdout]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:116:41
[INFO] [stdout]     |
[INFO] [stdout] 116 |             Token::Return(lexeme, line, col) => write!(f, "{} {} {}", "RETURN", lexeme, "null"),
[INFO] [stdout]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:117:34
[INFO] [stdout]     |
[INFO] [stdout] 117 |             Token::Super(lexeme, line, col) => write!(f, "{} {} {}", "SUPER", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:117:40
[INFO] [stdout]     |
[INFO] [stdout] 117 |             Token::Super(lexeme, line, col) => write!(f, "{} {} {}", "SUPER", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:118:33
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token::This(lexeme, line, col) => write!(f, "{} {} {}", "THIS", lexeme, "null"),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:118:39
[INFO] [stdout]     |
[INFO] [stdout] 118 |             Token::This(lexeme, line, col) => write!(f, "{} {} {}", "THIS", lexeme, "null"),
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:119:33
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Token::True(lexeme, line, col) => write!(f, "{} {} {}", "TRUE", lexeme, "null"),
[INFO] [stdout]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:119:39
[INFO] [stdout]     |
[INFO] [stdout] 119 |             Token::True(lexeme, line, col) => write!(f, "{} {} {}", "TRUE", lexeme, "null"),
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:120:32
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Token::Var(lexeme, line, col) => write!(f, "{} {} {}", "VAR", lexeme, "null"),
[INFO] [stdout]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:120:38
[INFO] [stdout]     |
[INFO] [stdout] 120 |             Token::Var(lexeme, line, col) => write!(f, "{} {} {}", "VAR", lexeme, "null"),
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/token.rs:121:34
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Token::While(lexeme, line, col) => write!(f, "{} {} {}", "WHILE", lexeme, "null"),
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col`
[INFO] [stdout]    --> src/token.rs:121:40
[INFO] [stdout]     |
[INFO] [stdout] 121 |             Token::While(lexeme, line, col) => write!(f, "{} {} {}", "WHILE", lexeme, "null"),
[INFO] [stdout]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         _ => {
[INFO] [stdout]     |                         ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/main.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 89  |                         Ok(RuntimeValue::Number(x)) => {
[INFO] [stdout]     |                         --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 92  |                         Ok(RuntimeValue::String(x)) => {
[INFO] [stdout]     |                         --------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 95  |                         Ok(RuntimeValue::Boolean(x)) => {
[INFO] [stdout]     |                         ---------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 98  |                         Ok(RuntimeValue::Nil) => {
[INFO] [stdout]     |                         --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 106 |                         _ => {
[INFO] [stdout]     |                         ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:112:21
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/main.rs:143:21
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 Err(e) => {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Power` is never constructed
[INFO] [stdout]   --> src/parser.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum Operator {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Power,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Assign` is never constructed
[INFO] [stdout]   --> src/parser.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Expression {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Assign(String, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `assert_next`, `operator`, `peek`, and `next` are never used
[INFO] [stdout]    --> src/parser.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn assert_next(&mut self, token: Token) -> Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn operator(&mut self) -> Result<Operator> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 421 |     fn peek(&mut self) -> Option<&Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 424 |     fn next(&mut self) -> Option<Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EndOfFile` is never constructed
[INFO] [stdout]   --> src/token.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum Token {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 45 |     EndOfFile,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:43:25
[INFO] [stdout]    |
[INFO] [stdout] 43 |                         writeln!(io::stderr(), "{}", err);
[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]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   writeln!(io::stderr(), "{}", e);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:138:29
[INFO] [stdout]     |
[INFO] [stdout] 138 | ...                   writeln!(io::stderr(), "{}", e);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |             writeln!(io::stderr(), "Unknown command: {}", command);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "0c9c043653328317c62c5030a2283deb128a47957f88f42921c88e761f00a289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9c043653328317c62c5030a2283deb128a47957f88f42921c88e761f00a289", kill_on_drop: false }`
[INFO] [stdout] 0c9c043653328317c62c5030a2283deb128a47957f88f42921c88e761f00a289
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82f945969825e92809f85a16ce39f97720d808e720612770bd9af974806333f1
[INFO] running `Command { std: "docker" "start" "-a" "82f945969825e92809f85a16ce39f97720d808e720612770bd9af974806333f1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `hash::Hash`
[INFO] [stderr]  --> src/interpreter.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::{collections::HashMap, hash::Hash, ops::Add};
[INFO] [stderr]   |                                 ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stderr]    --> src/interpreter.rs:111:15
[INFO] [stderr]     |
[INFO] [stderr] 111 |         match (self) {
[INFO] [stderr]     |               ^    ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 111 -         match (self) {
[INFO] [stderr] 111 +         match self {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/interpreter.rs:112:13
[INFO] [stderr]     |
[INFO] [stderr] 112 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Number(-x)),
[INFO] [stderr]     |             ^                       ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 112 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Number(-x)),
[INFO] [stderr] 112 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Number(-x)),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/interpreter.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stderr]     |             ^                        ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 113 -             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stderr] 113 +             RuntimeValue::Boolean(x) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/interpreter.rs:114:13
[INFO] [stderr]     |
[INFO] [stderr] 114 |             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stderr]     |             ^                       ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 114 -             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stderr] 114 +             RuntimeValue::String(x) => Err(anyhow!("Operand must be a number.")),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stderr]    --> src/interpreter.rs:120:15
[INFO] [stderr]     |
[INFO] [stderr] 120 |         match (self) {
[INFO] [stderr]     |               ^    ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 120 -         match (self) {
[INFO] [stderr] 120 +         match self {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/interpreter.rs:121:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr]     |             ^                       ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 121 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr] 121 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/interpreter.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr]     |             ^                       ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 122 -             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr] 122 +             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/interpreter.rs:123:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stderr]     |             ^                        ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 123 -             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stderr] 123 +             RuntimeValue::Boolean(x) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/interpreter.rs:124:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stderr]     |             ^                       ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 124 -             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stderr] 124 +             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/interpreter.rs:143:42
[INFO] [stderr]     |
[INFO] [stderr] 143 |                 Ok(RuntimeValue::Boolean((x && (y > 0.0))))
[INFO] [stderr]     |                                          ^              ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 143 -                 Ok(RuntimeValue::Boolean((x && (y > 0.0))))
[INFO] [stderr] 143 +                 Ok(RuntimeValue::Boolean(x && (y > 0.0)))
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt::Binary`
[INFO] [stderr]  --> src/parser.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Binary;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::parser`
[INFO] [stderr]  --> src/parser.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::parser;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `anyhow::Error`
[INFO] [stderr]  --> src/parser.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use anyhow::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Expression::*`
[INFO] [stderr]    --> src/parser.rs:527:9
[INFO] [stderr]     |
[INFO] [stderr] 527 |     use Expression::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Operator::*`
[INFO] [stderr]    --> src/parser.rs:528:9
[INFO] [stderr]     |
[INFO] [stderr] 528 |     use Operator::*;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Expression::*`
[INFO] [stderr]    --> src/parser.rs:558:9
[INFO] [stderr]     |
[INFO] [stderr] 558 |     use Expression::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Operator::*`
[INFO] [stderr]    --> src/parser.rs:559:9
[INFO] [stderr]     |
[INFO] [stderr] 559 |     use Operator::*;
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/tokenizer.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Write};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `anyhow::Ok`
[INFO] [stderr]  --> src/tokenizer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use anyhow::Ok;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `anyhow::Result`
[INFO] [stderr]  --> src/tokenizer.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use anyhow::Result;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser::Expression`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use parser::Expression;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::arch::x86_64`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::arch::x86_64;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]   --> src/tokenizer.rs:75:29
[INFO] [stderr]    |
[INFO] [stderr] 67 | / ...                   return Some(Token::Error(format!(
[INFO] [stderr] 68 | | ...                       "[line {}] Error: Unterminated string.",
[INFO] [stderr] 69 | | ...                       self.line
[INFO] [stderr] 70 | | ...                   )));
[INFO] [stderr]    | |_________________________- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 75 |   ...                   continue;
[INFO] [stderr]    |                         ^^^^^^^^^ unreachable statement
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/tokenizer.rs:1:21
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{self, Write};
[INFO] [stderr]   |                     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interpreter.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stderr]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/interpreter.rs:41:60
[INFO] [stderr]    |
[INFO] [stderr] 41 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stderr]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/interpreter.rs:72:35
[INFO] [stderr]    |
[INFO] [stderr] 72 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stderr]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/interpreter.rs:72:60
[INFO] [stderr]    |
[INFO] [stderr] 72 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stderr]    |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:103:35
[INFO] [stderr]     |
[INFO] [stderr] 103 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]    --> src/interpreter.rs:103:60
[INFO] [stderr]     |
[INFO] [stderr] 103 |             (RuntimeValue::String(x), RuntimeValue::String(y)) => {
[INFO] [stderr]     |                                                            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:113:36
[INFO] [stderr]     |
[INFO] [stderr] 113 |             (RuntimeValue::Boolean(x)) => Err(anyhow!("Can not take the negative of a boolean.")),
[INFO] [stderr]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:114:35
[INFO] [stderr]     |
[INFO] [stderr] 114 |             (RuntimeValue::String(x)) => Err(anyhow!("Operand must be a number.")),
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/interpreter.rs:122:14
[INFO] [stderr]     |
[INFO] [stderr] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr]     |              ----------------------- matches all the relevant values
[INFO] [stderr] 122 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/interpreter.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 121 |             (RuntimeValue::Number(x)) => Ok(RuntimeValue::Boolean(!(x > 0.0))),
[INFO] [stderr]     |              ----------------------- matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 125 |             RuntimeValue::Number(x) => Ok(RuntimeValue::Boolean(x > 0.0)),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/interpreter.rs:126:13
[INFO] [stderr]     |
[INFO] [stderr] 123 |             (RuntimeValue::Boolean(x)) => Ok(RuntimeValue::Boolean(!(x))),
[INFO] [stderr]     |              ------------------------ matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 126 |             RuntimeValue::Boolean(x) => Ok(RuntimeValue::Boolean(x)),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/interpreter.rs:127:13
[INFO] [stderr]     |
[INFO] [stderr] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stderr]     |              ----------------------- matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 127 |             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:124:35
[INFO] [stderr]     |
[INFO] [stderr] 124 |             (RuntimeValue::String(x)) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/interpreter.rs:127:34
[INFO] [stderr]     |
[INFO] [stderr] 127 |             RuntimeValue::String(x) => Ok(RuntimeValue::Boolean(false)),
[INFO] [stderr]     |                                  ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `left`
[INFO] [stderr]    --> src/interpreter.rs:277:32
[INFO] [stderr]     |
[INFO] [stderr] 277 |             Expression::Binary(left, Operator::Power, right) => todo!(),
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right`
[INFO] [stderr]    --> src/interpreter.rs:277:55
[INFO] [stderr]     |
[INFO] [stderr] 277 |             Expression::Binary(left, Operator::Power, right) => todo!(),
[INFO] [stderr]     |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `left`
[INFO] [stderr]    --> src/interpreter.rs:294:32
[INFO] [stderr]     |
[INFO] [stderr] 294 |             Expression::Binary(left, Operator::Or, right) => todo!(),
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_left`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `right`
[INFO] [stderr]    --> src/interpreter.rs:294:52
[INFO] [stderr]     |
[INFO] [stderr] 294 |             Expression::Binary(left, Operator::Or, right) => todo!(),
[INFO] [stderr]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_right`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/parser.rs:103:32
[INFO] [stderr]     |
[INFO] [stderr] 103 |             Expression::Assign(s, e) => todo!(),
[INFO] [stderr]     |                                ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/parser.rs:103:35
[INFO] [stderr]     |
[INFO] [stderr] 103 |             Expression::Assign(s, e) => todo!(),
[INFO] [stderr]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/parser.rs:341:36
[INFO] [stderr]     |
[INFO] [stderr] 341 |             Some(Token::Identifier(s, _, _, _)) => {
[INFO] [stderr]     |                                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:347:21
[INFO] [stderr]     |
[INFO] [stderr] 347 |                 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: unused variable: `print`
[INFO] [stderr]    --> src/parser.rs:353:13
[INFO] [stderr]     |
[INFO] [stderr] 353 |         let print = self.iter.next().context("Expected print keyword.")?;
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_print`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `semi`
[INFO] [stderr]    --> src/parser.rs:355:13
[INFO] [stderr]     |
[INFO] [stderr] 355 |         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `semi`
[INFO] [stderr]    --> src/parser.rs:361:13
[INFO] [stderr]     |
[INFO] [stderr] 361 |         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next` is never read
[INFO] [stderr]    --> src/parser.rs:375:17
[INFO] [stderr]     |
[INFO] [stderr] 375 |         let mut next = self.iter.next().context("Expected var declaration.")?;
[INFO] [stderr]     |                 ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `semi`
[INFO] [stderr]    --> src/parser.rs:384:29
[INFO] [stderr]     |
[INFO] [stderr] 384 |                         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stderr]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `semi`
[INFO] [stderr]    --> src/parser.rs:388:29
[INFO] [stderr]     |
[INFO] [stderr] 388 |                         let semi = self.iter.next().context("Expected ; after expression.")?;
[INFO] [stderr]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_semi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/parser.rs:407:24
[INFO] [stderr]     |
[INFO] [stderr] 407 |         while let Some(token) = self.iter.peek() {
[INFO] [stderr]     |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_token`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/parser.rs:430:17
[INFO] [stderr]     |
[INFO] [stderr] 430 |     fn try_from(value: Token) -> Result<Self, Self::Error> {
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:51:38
[INFO] [stderr]    |
[INFO] [stderr] 51 |             Token::LeftParen(lexeme, line, col) => {
[INFO] [stderr]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:51:44
[INFO] [stderr]    |
[INFO] [stderr] 51 |             Token::LeftParen(lexeme, line, col) => {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:54:39
[INFO] [stderr]    |
[INFO] [stderr] 54 |             Token::RightParen(lexeme, line, col) => {
[INFO] [stderr]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:54:45
[INFO] [stderr]    |
[INFO] [stderr] 54 |             Token::RightParen(lexeme, line, col) => {
[INFO] [stderr]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:57:38
[INFO] [stderr]    |
[INFO] [stderr] 57 |             Token::LeftBrace(lexeme, line, col) => {
[INFO] [stderr]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:57:44
[INFO] [stderr]    |
[INFO] [stderr] 57 |             Token::LeftBrace(lexeme, line, col) => {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:60:39
[INFO] [stderr]    |
[INFO] [stderr] 60 |             Token::RightBrace(lexeme, line, col) => {
[INFO] [stderr]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:60:45
[INFO] [stderr]    |
[INFO] [stderr] 60 |             Token::RightBrace(lexeme, line, col) => {
[INFO] [stderr]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:63:33
[INFO] [stderr]    |
[INFO] [stderr] 63 |             Token::Star(lexeme, line, col) => write!(f, "{} {} {}", "STAR", lexeme, "null"),
[INFO] [stderr]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:63:39
[INFO] [stderr]    |
[INFO] [stderr] 63 |             Token::Star(lexeme, line, col) => write!(f, "{} {} {}", "STAR", lexeme, "null"),
[INFO] [stderr]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:64:32
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Token::Dot(lexeme, line, col) => write!(f, "{} {} {}", "DOT", lexeme, "null"),
[INFO] [stderr]    |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:64:38
[INFO] [stderr]    |
[INFO] [stderr] 64 |             Token::Dot(lexeme, line, col) => write!(f, "{} {} {}", "DOT", lexeme, "null"),
[INFO] [stderr]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:65:34
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Token::Comma(lexeme, line, col) => write!(f, "{} {} {}", "COMMA", lexeme, "null"),
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:65:40
[INFO] [stderr]    |
[INFO] [stderr] 65 |             Token::Comma(lexeme, line, col) => write!(f, "{} {} {}", "COMMA", lexeme, "null"),
[INFO] [stderr]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:66:33
[INFO] [stderr]    |
[INFO] [stderr] 66 |             Token::Plus(lexeme, line, col) => write!(f, "{} {} {}", "PLUS", lexeme, "null"),
[INFO] [stderr]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:66:39
[INFO] [stderr]    |
[INFO] [stderr] 66 |             Token::Plus(lexeme, line, col) => write!(f, "{} {} {}", "PLUS", lexeme, "null"),
[INFO] [stderr]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:67:34
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Token::Minus(lexeme, line, col) => write!(f, "{} {} {}", "MINUS", lexeme, "null"),
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:67:40
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Token::Minus(lexeme, line, col) => write!(f, "{} {} {}", "MINUS", lexeme, "null"),
[INFO] [stderr]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:68:38
[INFO] [stderr]    |
[INFO] [stderr] 68 |             Token::Semicolon(lexeme, line, col) => {
[INFO] [stderr]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:68:44
[INFO] [stderr]    |
[INFO] [stderr] 68 |             Token::Semicolon(lexeme, line, col) => {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:71:34
[INFO] [stderr]    |
[INFO] [stderr] 71 |             Token::Slash(lexeme, line, col) => write!(f, "{} {} {}", "SLASH", lexeme, "null"),
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:71:40
[INFO] [stderr]    |
[INFO] [stderr] 71 |             Token::Slash(lexeme, line, col) => write!(f, "{} {} {}", "SLASH", lexeme, "null"),
[INFO] [stderr]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:72:35
[INFO] [stderr]    |
[INFO] [stderr] 72 |             Token::Number(lexeme, line, col, ident) => {
[INFO] [stderr]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:72:41
[INFO] [stderr]    |
[INFO] [stderr] 72 |             Token::Number(lexeme, line, col, ident) => {
[INFO] [stderr]    |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:83:39
[INFO] [stderr]    |
[INFO] [stderr] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stderr]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:83:45
[INFO] [stderr]    |
[INFO] [stderr] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stderr]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]   --> src/token.rs:83:50
[INFO] [stderr]    |
[INFO] [stderr] 83 |             Token::Identifier(lexeme, line, col, ident) => {
[INFO] [stderr]    |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:86:34
[INFO] [stderr]    |
[INFO] [stderr] 86 |             Token::Equal(lexeme, line, col) => write!(f, "{} {} {}", "EQUAL", lexeme, "null"),
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:86:40
[INFO] [stderr]    |
[INFO] [stderr] 86 |             Token::Equal(lexeme, line, col) => write!(f, "{} {} {}", "EQUAL", lexeme, "null"),
[INFO] [stderr]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:87:39
[INFO] [stderr]    |
[INFO] [stderr] 87 |             Token::EqualEqual(lexeme, line, col) => {
[INFO] [stderr]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:87:45
[INFO] [stderr]    |
[INFO] [stderr] 87 |             Token::EqualEqual(lexeme, line, col) => {
[INFO] [stderr]    |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:90:34
[INFO] [stderr]    |
[INFO] [stderr] 90 |             Token::Colon(lexeme, line, col) => write!(f, "{} {} {}", "COLON", lexeme, "null"),
[INFO] [stderr]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:90:40
[INFO] [stderr]    |
[INFO] [stderr] 90 |             Token::Colon(lexeme, line, col) => write!(f, "{} {} {}", "COLON", lexeme, "null"),
[INFO] [stderr]    |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:91:33
[INFO] [stderr]    |
[INFO] [stderr] 91 |             Token::Bang(lexeme, line, col) => write!(f, "{} {} {}", "BANG", lexeme, "null"),
[INFO] [stderr]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:91:39
[INFO] [stderr]    |
[INFO] [stderr] 91 |             Token::Bang(lexeme, line, col) => write!(f, "{} {} {}", "BANG", lexeme, "null"),
[INFO] [stderr]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:92:38
[INFO] [stderr]    |
[INFO] [stderr] 92 |             Token::BangEqual(lexeme, line, col) => {
[INFO] [stderr]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:92:44
[INFO] [stderr]    |
[INFO] [stderr] 92 |             Token::BangEqual(lexeme, line, col) => {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:95:33
[INFO] [stderr]    |
[INFO] [stderr] 95 |             Token::Less(lexeme, line, col) => write!(f, "{} {} {}", "LESS", lexeme, "null"),
[INFO] [stderr]    |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:95:39
[INFO] [stderr]    |
[INFO] [stderr] 95 |             Token::Less(lexeme, line, col) => write!(f, "{} {} {}", "LESS", lexeme, "null"),
[INFO] [stderr]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:96:38
[INFO] [stderr]    |
[INFO] [stderr] 96 |             Token::LessEqual(lexeme, line, col) => {
[INFO] [stderr]    |                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:96:44
[INFO] [stderr]    |
[INFO] [stderr] 96 |             Token::LessEqual(lexeme, line, col) => {
[INFO] [stderr]    |                                            ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/token.rs:99:36
[INFO] [stderr]    |
[INFO] [stderr] 99 |             Token::Greater(lexeme, line, col) => write!(f, "{} {} {}", "GREATER", lexeme, "null"),
[INFO] [stderr]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]   --> src/token.rs:99:42
[INFO] [stderr]    |
[INFO] [stderr] 99 |             Token::Greater(lexeme, line, col) => write!(f, "{} {} {}", "GREATER", lexeme, "null"),
[INFO] [stderr]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:100:41
[INFO] [stderr]     |
[INFO] [stderr] 100 |             Token::GreaterEqual(lexeme, line, col) => {
[INFO] [stderr]     |                                         ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:100:47
[INFO] [stderr]     |
[INFO] [stderr] 100 |             Token::GreaterEqual(lexeme, line, col) => {
[INFO] [stderr]     |                                               ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:103:35
[INFO] [stderr]     |
[INFO] [stderr] 103 |             Token::String(lexeme, line, col, ident) => {
[INFO] [stderr]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:103:41
[INFO] [stderr]     |
[INFO] [stderr] 103 |             Token::String(lexeme, line, col, ident) => {
[INFO] [stderr]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:106:32
[INFO] [stderr]     |
[INFO] [stderr] 106 |             Token::And(lexeme, line, col) => write!(f, "{} {} {}", "AND", lexeme, "null"),
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:106:38
[INFO] [stderr]     |
[INFO] [stderr] 106 |             Token::And(lexeme, line, col) => write!(f, "{} {} {}", "AND", lexeme, "null"),
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:107:34
[INFO] [stderr]     |
[INFO] [stderr] 107 |             Token::Class(lexeme, line, col) => write!(f, "{} {} {}", "CLASS", lexeme, "null"),
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:107:40
[INFO] [stderr]     |
[INFO] [stderr] 107 |             Token::Class(lexeme, line, col) => write!(f, "{} {} {}", "CLASS", lexeme, "null"),
[INFO] [stderr]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:108:33
[INFO] [stderr]     |
[INFO] [stderr] 108 |             Token::Else(lexeme, line, col) => write!(f, "{} {} {}", "ELSE", lexeme, "null"),
[INFO] [stderr]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:108:39
[INFO] [stderr]     |
[INFO] [stderr] 108 |             Token::Else(lexeme, line, col) => write!(f, "{} {} {}", "ELSE", lexeme, "null"),
[INFO] [stderr]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:109:34
[INFO] [stderr]     |
[INFO] [stderr] 109 |             Token::False(lexeme, line, col) => write!(f, "{} {} {}", "FALSE", lexeme, "null"),
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:109:40
[INFO] [stderr]     |
[INFO] [stderr] 109 |             Token::False(lexeme, line, col) => write!(f, "{} {} {}", "FALSE", lexeme, "null"),
[INFO] [stderr]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:110:32
[INFO] [stderr]     |
[INFO] [stderr] 110 |             Token::For(lexeme, line, col) => write!(f, "{} {} {}", "FOR", lexeme, "null"),
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:110:38
[INFO] [stderr]     |
[INFO] [stderr] 110 |             Token::For(lexeme, line, col) => write!(f, "{} {} {}", "FOR", lexeme, "null"),
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:111:32
[INFO] [stderr]     |
[INFO] [stderr] 111 |             Token::Fun(lexeme, line, col) => write!(f, "{} {} {}", "FUN", lexeme, "null"),
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:111:38
[INFO] [stderr]     |
[INFO] [stderr] 111 |             Token::Fun(lexeme, line, col) => write!(f, "{} {} {}", "FUN", lexeme, "null"),
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:112:31
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Token::If(lexeme, line, col) => write!(f, "{} {} {}", "IF", lexeme, "null"),
[INFO] [stderr]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:112:37
[INFO] [stderr]     |
[INFO] [stderr] 112 |             Token::If(lexeme, line, col) => write!(f, "{} {} {}", "IF", lexeme, "null"),
[INFO] [stderr]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:113:32
[INFO] [stderr]     |
[INFO] [stderr] 113 |             Token::Nil(lexeme, line, col) => write!(f, "{} {} {}", "NIL", lexeme, "null"),
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:113:38
[INFO] [stderr]     |
[INFO] [stderr] 113 |             Token::Nil(lexeme, line, col) => write!(f, "{} {} {}", "NIL", lexeme, "null"),
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:114:31
[INFO] [stderr]     |
[INFO] [stderr] 114 |             Token::Or(lexeme, line, col) => write!(f, "{} {} {}", "OR", lexeme, "null"),
[INFO] [stderr]     |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:114:37
[INFO] [stderr]     |
[INFO] [stderr] 114 |             Token::Or(lexeme, line, col) => write!(f, "{} {} {}", "OR", lexeme, "null"),
[INFO] [stderr]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:115:34
[INFO] [stderr]     |
[INFO] [stderr] 115 |             Token::Print(lexeme, line, col) => write!(f, "{} {} {}", "PRINT", lexeme, "null"),
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:115:40
[INFO] [stderr]     |
[INFO] [stderr] 115 |             Token::Print(lexeme, line, col) => write!(f, "{} {} {}", "PRINT", lexeme, "null"),
[INFO] [stderr]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:116:35
[INFO] [stderr]     |
[INFO] [stderr] 116 |             Token::Return(lexeme, line, col) => write!(f, "{} {} {}", "RETURN", lexeme, "null"),
[INFO] [stderr]     |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:116:41
[INFO] [stderr]     |
[INFO] [stderr] 116 |             Token::Return(lexeme, line, col) => write!(f, "{} {} {}", "RETURN", lexeme, "null"),
[INFO] [stderr]     |                                         ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:117:34
[INFO] [stderr]     |
[INFO] [stderr] 117 |             Token::Super(lexeme, line, col) => write!(f, "{} {} {}", "SUPER", lexeme, "null"),
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:117:40
[INFO] [stderr]     |
[INFO] [stderr] 117 |             Token::Super(lexeme, line, col) => write!(f, "{} {} {}", "SUPER", lexeme, "null"),
[INFO] [stderr]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:118:33
[INFO] [stderr]     |
[INFO] [stderr] 118 |             Token::This(lexeme, line, col) => write!(f, "{} {} {}", "THIS", lexeme, "null"),
[INFO] [stderr]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:118:39
[INFO] [stderr]     |
[INFO] [stderr] 118 |             Token::This(lexeme, line, col) => write!(f, "{} {} {}", "THIS", lexeme, "null"),
[INFO] [stderr]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:119:33
[INFO] [stderr]     |
[INFO] [stderr] 119 |             Token::True(lexeme, line, col) => write!(f, "{} {} {}", "TRUE", lexeme, "null"),
[INFO] [stderr]     |                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:119:39
[INFO] [stderr]     |
[INFO] [stderr] 119 |             Token::True(lexeme, line, col) => write!(f, "{} {} {}", "TRUE", lexeme, "null"),
[INFO] [stderr]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:120:32
[INFO] [stderr]     |
[INFO] [stderr] 120 |             Token::Var(lexeme, line, col) => write!(f, "{} {} {}", "VAR", lexeme, "null"),
[INFO] [stderr]     |                                ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:120:38
[INFO] [stderr]     |
[INFO] [stderr] 120 |             Token::Var(lexeme, line, col) => write!(f, "{} {} {}", "VAR", lexeme, "null"),
[INFO] [stderr]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/token.rs:121:34
[INFO] [stderr]     |
[INFO] [stderr] 121 |             Token::While(lexeme, line, col) => write!(f, "{} {} {}", "WHILE", lexeme, "null"),
[INFO] [stderr]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col`
[INFO] [stderr]    --> src/token.rs:121:40
[INFO] [stderr]     |
[INFO] [stderr] 121 |             Token::While(lexeme, line, col) => write!(f, "{} {} {}", "WHILE", lexeme, "null"),
[INFO] [stderr]     |                                        ^^^ help: if this is intentional, prefix it with an underscore: `_col`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:106:25
[INFO] [stderr]     |
[INFO] [stderr] 106 |                         _ => {
[INFO] [stderr]     |                         ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]    --> src/main.rs:106:25
[INFO] [stderr]     |
[INFO] [stderr] 89  |                         Ok(RuntimeValue::Number(x)) => {
[INFO] [stderr]     |                         --------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 92  |                         Ok(RuntimeValue::String(x)) => {
[INFO] [stderr]     |                         --------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 95  |                         Ok(RuntimeValue::Boolean(x)) => {
[INFO] [stderr]     |                         ---------------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 98  |                         Ok(RuntimeValue::Nil) => {
[INFO] [stderr]     |                         --------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 106 |                         _ => {
[INFO] [stderr]     |                         ^ ...and 1 other patterns collectively make this unreachable
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |                 Err(e) => {
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:112:21
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 Err(e) => {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |                 Err(e) => {
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Power` is never constructed
[INFO] [stderr]   --> src/parser.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Operator {
[INFO] [stderr]    |          -------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 17 |     Power,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Operator` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Assign` is never constructed
[INFO] [stderr]   --> src/parser.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub enum Expression {
[INFO] [stderr]    |          ---------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 37 |     Assign(String, Box<Expression>),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Expression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: methods `assert_next`, `operator`, `peek`, and `next` are never used
[INFO] [stderr]    --> src/parser.rs:114:8
[INFO] [stderr]     |
[INFO] [stderr] 110 | impl<'a> Parser<'a> {
[INFO] [stderr]     | ------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 114 |     fn assert_next(&mut self, token: Token) -> Result<()> {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 124 |     fn operator(&mut self) -> Result<Operator> {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 421 |     fn peek(&mut self) -> Option<&Token> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 424 |     fn next(&mut self) -> Option<Token> {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `EndOfFile` is never constructed
[INFO] [stderr]   --> src/token.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub enum Token {
[INFO] [stderr]    |          ----- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 45 |     EndOfFile,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |                         writeln!(io::stderr(), "{}", err);
[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]    = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:103:29
[INFO] [stderr]     |
[INFO] [stderr] 103 | ...                   writeln!(io::stderr(), "{}", e);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:138:29
[INFO] [stderr]     |
[INFO] [stderr] 138 | ...                   writeln!(io::stderr(), "{}", e);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |             writeln!(io::stderr(), "Unknown command: {}", command);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `codecrafters-interpreter` (bin "codecrafters-interpreter" test) generated 146 warnings (run `cargo fix --bin "codecrafters-interpreter" --tests` to apply 24 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/codecrafters_interpreter-022bc73e171172e5)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test interpreter::test_add ... ok
[INFO] [stdout] test interpreter::test_overflow ... ok
[INFO] [stdout] test parser::test_boolean_2 ... ok
[INFO] [stdout] test parser::test_term ... ok
[INFO] [stdout] test parser::test_boolean ... ok
[INFO] [stdout] test parser::test_iterator ... ok
[INFO] [stdout] test interpreter::test_bool_logic ... ok
[INFO] [stdout] test interpreter::test_bool_nil_asd ... ok
[INFO] [stdout] test parser::test_unary ... ok
[INFO] [stdout] test interpreter::test_add_strings ... ok
[INFO] [stdout] test interpreter::test_long_math_expr ... ok
[INFO] [stdout] test interpreter::test_bool_nil ... ok
[INFO] [stdout] test tokenizer::test_iterator ... ok
[INFO] [stdout] test interpreter::test_var_decl ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- interpreter::test_var_decl stdout ----
[INFO] [stdout] thread 'interpreter::test_var_decl' panicked at src/interpreter.rs:406:46:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Unexpected
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: anyhow::error::<impl anyhow::Error>::msg
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/anyhow-1.0.86/src/backtrace.rs:27:14
[INFO] [stdout]    1: anyhow::__private::format_err
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/anyhow-1.0.86/src/lib.rs:689:13
[INFO] [stdout]    2: codecrafters_interpreter::parser::Parser::primary
[INFO] [stdout]              at ./src/parser.rs:192:22
[INFO] [stdout]    3: codecrafters_interpreter::parser::Parser::uanary
[INFO] [stdout]              at ./src/parser.rs:210:18
[INFO] [stdout]    4: codecrafters_interpreter::parser::Parser::factor
[INFO] [stdout]              at ./src/parser.rs:214:24
[INFO] [stdout]    5: codecrafters_interpreter::parser::Parser::term
[INFO] [stdout]              at ./src/parser.rs:234:24
[INFO] [stdout]    6: codecrafters_interpreter::parser::Parser::comparison
[INFO] [stdout]              at ./src/parser.rs:254:24
[INFO] [stdout]    7: codecrafters_interpreter::parser::Parser::equality
[INFO] [stdout]              at ./src/parser.rs:286:24
[INFO] [stdout]    8: codecrafters_interpreter::parser::Parser::and
[INFO] [stdout]              at ./src/parser.rs:307:24
[INFO] [stdout]    9: codecrafters_interpreter::parser::Parser::or
[INFO] [stdout]              at ./src/parser.rs:322:24
[INFO] [stdout]   10: codecrafters_interpreter::parser::Parser::expression
[INFO] [stdout]              at ./src/parser.rs:347:32
[INFO] [stdout]   11: codecrafters_interpreter::parser::Parser::expr_stmt
[INFO] [stdout]              at ./src/parser.rs:360:25
[INFO] [stdout]   12: codecrafters_interpreter::parser::Parser::statement
[INFO] [stdout]              at ./src/parser.rs:370:17
[INFO] [stdout]   13: codecrafters_interpreter::parser::Parser::declaration
[INFO] [stdout]              at ./src/parser.rs:401:18
[INFO] [stdout]   14: codecrafters_interpreter::parser::Parser::program
[INFO] [stdout]              at ./src/parser.rs:408:29
[INFO] [stdout]   15: codecrafters_interpreter::parser::Parser::parse_program
[INFO] [stdout]              at ./src/parser.rs:414:19
[INFO] [stdout]   16: codecrafters_interpreter::interpreter::test_var_decl
[INFO] [stdout]              at ./src/interpreter.rs:406:23
[INFO] [stdout]   17: codecrafters_interpreter::interpreter::test_var_decl::{{closure}}
[INFO] [stdout]              at ./src/interpreter.rs:401:19
[INFO] [stdout]   18: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   19: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   20: test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   21: test::run_test_in_process::{{closure}}
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   22: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   23: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   24: std::panicking::try
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   25: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   26: test::run_test_in_process
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   27: test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   28: test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   29: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   30: std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   31: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   32: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   33: std::panicking::try
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   34: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   35: std::thread::Builder::spawn_unchecked_::{{closure}}
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   36: core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   37: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   38: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   39: std::sys::pal::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   40: <unknown>
[INFO] [stdout]   41: clone
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c6463ac745a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5c6463ac745a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5c6463ac745a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c6463ac745a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c6463aedc13 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5c6463aedc13 - core::fmt::write::h7550c97b06c86515
[INFO] [stderr] error: test failed, to rerun pass `--bin codecrafters-interpreter`
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x5c6463ac4453 - std::io::Write::write_fmt::h509ff860e5956e5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x5c6463ac72a2 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5c6463ac88ba - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x5c6463ac86c4 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x5c6463a885b9 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39b51ce4599c23d1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x5c6463a885b9 - test::test_main::{{closure}}::he977ae839a582784
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x5c6463ac8f58 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h9455091b6b06f9fb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x5c6463ac8f58 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x5c6463ac8d1a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x5c6463ac7939 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x5c6463ac89ac - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x5c6463a1fa60 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x5c6463a1fea6 - core::result::unwrap_failed::hd20b4aa073bda1e2
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1700:5
[INFO] [stdout]   19:     0x5c6463a2ee55 - core::result::Result<T,E>::unwrap::h2831faced4d92bb2
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5c6463a2ee55 - codecrafters_interpreter::interpreter::test_var_decl::h3e0a84de47b207db
[INFO] [stdout]                                at /opt/rustwide/workdir/src/interpreter.rs:406:23
[INFO] [stdout]   21:     0x5c6463a2ece7 - codecrafters_interpreter::interpreter::test_var_decl::{{closure}}::h8de780bcc75827bb
[INFO] [stdout]                                at /opt/rustwide/workdir/src/interpreter.rs:401:19
[INFO] [stdout]   22:     0x5c6463a35576 - core::ops::function::FnOnce::call_once::hc2c91b9fc0133f55
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c6463a8cf7b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c6463a8cf7b - test::__rust_begin_short_backtrace::hf4fff89d377446ba
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18
[INFO] [stdout]   25:     0x5c6463a8c7b7 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60
[INFO] [stdout]   26:     0x5c6463a8c7b7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c6463a8c7b7 - std::panicking::try::do_call::h873b7cf639554a5e
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x5c6463a8c7b7 - std::panicking::try::hdb19862fad9c8bd1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x5c6463a8c7b7 - std::panic::catch_unwind::h281fe732d236d260
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5c6463a8c7b7 - test::run_test_in_process::h949b6df8457ed338
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27
[INFO] [stdout]   31:     0x5c6463a8c7b7 - test::run_test::{{closure}}::h52c556a6d4740e10
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43
[INFO] [stdout]   32:     0x5c6463a51a94 - test::run_test::{{closure}}::h4237f6381c45ccb9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41
[INFO] [stdout]   33:     0x5c6463a51a94 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x5c6463a5515e - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   35:     0x5c6463a5515e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c6463a5515e - std::panicking::try::do_call::hb26ecd7cd9a9355d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x5c6463a5515e - std::panicking::try::h8ddeca9d705f9069
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x5c6463a5515e - std::panic::catch_unwind::h49e1c33078844c46
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5c6463a5515e - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   40:     0x5c6463a5515e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c6463acccab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf75717d9f28faebf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   42:     0x5c6463acccab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7bd883a5f3c5f3c1
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   43:     0x5c6463acccab - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x787124d81ac3 - <unknown>
[INFO] [stdout]   45:     0x787124e12a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     interpreter::test_var_decl
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 13 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82f945969825e92809f85a16ce39f97720d808e720612770bd9af974806333f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82f945969825e92809f85a16ce39f97720d808e720612770bd9af974806333f1", kill_on_drop: false }`
[INFO] [stdout] 82f945969825e92809f85a16ce39f97720d808e720612770bd9af974806333f1
