[INFO] cloning repository https://github.com/philmein23/lox-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/philmein23/lox-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilmein23%2Flox-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilmein23%2Flox-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9aab365f652cbcf2861372741e8351d0e072066
[INFO] checking philmein23/lox-interpreter against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilmein23%2Flox-interpreter" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/philmein23/lox-interpreter on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/philmein23/lox-interpreter
[INFO] finished tweaking git repo https://github.com/philmein23/lox-interpreter
[INFO] tweaked toml for git repo https://github.com/philmein23/lox-interpreter written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/philmein23/lox-interpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b45dd9c829c57854d328a69a65c2848b855f6a7f5148ba46cb442c8ecb41fcf8
[INFO] running `Command { std: "docker" "start" "-a" "b45dd9c829c57854d328a69a65c2848b855f6a7f5148ba46cb442c8ecb41fcf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b45dd9c829c57854d328a69a65c2848b855f6a7f5148ba46cb442c8ecb41fcf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45dd9c829c57854d328a69a65c2848b855f6a7f5148ba46cb442c8ecb41fcf8", kill_on_drop: false }`
[INFO] [stdout] b45dd9c829c57854d328a69a65c2848b855f6a7f5148ba46cb442c8ecb41fcf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddb13a91641702268d45ee93926d895e9fe6971a4ce8aa799544a27620cffdc4
[INFO] running `Command { std: "docker" "start" "-a" "ddb13a91641702268d45ee93926d895e9fe6971a4ce8aa799544a27620cffdc4", kill_on_drop: false }`
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     LEFT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftParen`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     RIGHT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightParen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     LEFT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     BANG_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     EQUAL_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     GREATER_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     LESS_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     EQUAL_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     BANG_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     GREATER_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     LESS_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::vec::{self, IntoIter};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `object::Object`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use object::Object;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/environment.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, collections::HashMap};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     LEFT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftParen`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_PAREN` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     RIGHT_PAREN,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightParen`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LEFT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     LEFT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LeftBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RIGHT_BRACE` should have an upper camel case name
[INFO] [stdout]  --> src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     RIGHT_BRACE,
[INFO] [stdout]   |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `RightBrace`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     BANG_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     EQUAL_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     GREATER_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     LESS_EQUAL,
[INFO] [stdout]    |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token::Token`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EQUAL_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     EQUAL_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^^ help: convert the identifier to upper camel case: `EqualEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BANG_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     BANG_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `BangEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GREATER_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     GREATER_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `GreaterEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `LESS_EQUAL` should have an upper camel case name
[INFO] [stdout]    --> src/ast.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     LESS_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^ help: convert the identifier to upper camel case: `LessEqual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/parser.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::vec::{self, IntoIter};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]  --> src/interpreter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::BorrowMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `object::Object`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use object::Object;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `borrow::Borrow`
[INFO] [stdout]  --> src/environment.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{borrow::Borrow, collections::HashMap};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/interpreter.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |             _ => Err(RuntimeError::InvalidSyntax),
[INFO] [stdout]     |             ^
[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:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |             _ => Err(RuntimeError::InvalidSyntax),
[INFO] [stdout]     |             ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ScanningError`
[INFO] [stdout]    --> src/scanner.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     ScanningError(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOF`
[INFO] [stdout]   --> src/token.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:409:8
[INFO] [stdout]     |
[INFO] [stdout] 409 |     fn synchronize(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidArguments`
[INFO] [stdout]   --> src/interpreter.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     InvalidArguments,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidNumberOfArguments`
[INFO] [stdout]   --> src/interpreter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     InvalidNumberOfArguments,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidNumberOfArgumentsForFunction`
[INFO] [stdout]   --> src/interpreter.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidNumberOfArgumentsForFunction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidNumberOfArgumentsForMethod`
[INFO] [stdout]   --> src/interpreter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     InvalidNumberOfArgumentsForMethod,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 self.evaluate(statements);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 self.evaluate(statements);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ScanningError`
[INFO] [stdout]    --> src/scanner.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     ScanningError(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EOF`
[INFO] [stdout]   --> src/token.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Print`
[INFO] [stdout]  --> src/ast.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Print(Box<Expression>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Expression`
[INFO] [stdout]  --> src/ast.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Expression(Box<Expression>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Var`
[INFO] [stdout]  --> src/ast.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Var(String, Option<Box<Expression>>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]  --> src/ast.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Block(Vec<Statement>),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/ast.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     If(Box<Expression>, Box<Statement>, Option<Box<Statement>>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `While`
[INFO] [stdout]   --> src/ast.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     While(Box<Expression>, Box<Statement>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Binary`
[INFO] [stdout]   --> src/ast.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     Binary(Box<Expression>, Infix, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]   --> src/ast.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Unary(Prefix, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Grouping`
[INFO] [stdout]   --> src/ast.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Grouping(Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]   --> src/ast.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Number(i64),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringLiteral`
[INFO] [stdout]   --> src/ast.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     StringLiteral(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]   --> src/ast.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Variable`
[INFO] [stdout]   --> src/ast.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Variable(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Assign`
[INFO] [stdout]   --> src/ast.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     Assign(String, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Logical`
[INFO] [stdout]   --> src/ast.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Logical(Box<Expression>, Infix, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nil`
[INFO] [stdout]   --> src/ast.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     Nil,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG`
[INFO] [stdout]   --> src/ast.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 94 |     BANG,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MINUS`
[INFO] [stdout]   --> src/ast.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     MINUS,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PLUS`
[INFO] [stdout]    --> src/ast.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     PLUS,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MINUS`
[INFO] [stdout]    --> src/ast.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 110 |     MINUS,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `STAR`
[INFO] [stdout]    --> src/ast.rs:111:5
[INFO] [stdout]     |
[INFO] [stdout] 111 |     STAR,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SLASH`
[INFO] [stdout]    --> src/ast.rs:112:5
[INFO] [stdout]     |
[INFO] [stdout] 112 |     SLASH,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EQUAL_EQUAL`
[INFO] [stdout]    --> src/ast.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     EQUAL_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BANG_EQUAL`
[INFO] [stdout]    --> src/ast.rs:114:5
[INFO] [stdout]     |
[INFO] [stdout] 114 |     BANG_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER`
[INFO] [stdout]    --> src/ast.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 |     GREATER,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GREATER_EQUAL`
[INFO] [stdout]    --> src/ast.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     GREATER_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS`
[INFO] [stdout]    --> src/ast.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     LESS,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESS_EQUAL`
[INFO] [stdout]    --> src/ast.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 118 |     LESS_EQUAL,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `AND`
[INFO] [stdout]    --> src/ast.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     AND,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `OR`
[INFO] [stdout]    --> src/ast.rs:120:5
[INFO] [stdout]     |
[INFO] [stdout] 120 |     OR,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]  --> src/parser.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Parser<'a> {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(tokens: &'a mut Peekable<IntoIter<Token>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]   --> src/parser.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn parse(&mut self) -> Result<Vec<Statement>, ParseError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `declaration`
[INFO] [stdout]   --> src/parser.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn declaration(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `var_declaration`
[INFO] [stdout]   --> src/parser.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn var_declaration(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `statement`
[INFO] [stdout]   --> src/parser.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `expression`
[INFO] [stdout]   --> src/parser.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn expression(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `for_statement`
[INFO] [stdout]   --> src/parser.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn for_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `expression_statement`
[INFO] [stdout]    --> src/parser.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn expression_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `while_statement`
[INFO] [stdout]    --> src/parser.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 |     fn while_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `if_statement`
[INFO] [stdout]    --> src/parser.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn if_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `block`
[INFO] [stdout]    --> src/parser.rs:188:8
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn block(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_statement`
[INFO] [stdout]    --> src/parser.rs:203:8
[INFO] [stdout]     |
[INFO] [stdout] 203 |     fn print_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assignment`
[INFO] [stdout]    --> src/parser.rs:210:8
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn assignment(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `or`
[INFO] [stdout]    --> src/parser.rs:228:8
[INFO] [stdout]     |
[INFO] [stdout] 228 |     fn or(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `and`
[INFO] [stdout]    --> src/parser.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout] 245 |     fn and(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `equality`
[INFO] [stdout]    --> src/parser.rs:262:8
[INFO] [stdout]     |
[INFO] [stdout] 262 |     fn equality(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `comparison`
[INFO] [stdout]    --> src/parser.rs:285:8
[INFO] [stdout]     |
[INFO] [stdout] 285 |     fn comparison(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `term`
[INFO] [stdout]    --> src/parser.rs:319:8
[INFO] [stdout]     |
[INFO] [stdout] 319 |     fn term(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `factor`
[INFO] [stdout]    --> src/parser.rs:342:8
[INFO] [stdout]     |
[INFO] [stdout] 342 |     fn factor(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unary`
[INFO] [stdout]    --> src/parser.rs:365:8
[INFO] [stdout]     |
[INFO] [stdout] 365 |     fn unary(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `primary`
[INFO] [stdout]    --> src/parser.rs:383:8
[INFO] [stdout]     |
[INFO] [stdout] 383 |     fn primary(&mut self) -> Result<Expression, ParseError> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `synchronize`
[INFO] [stdout]    --> src/parser.rs:409:8
[INFO] [stdout]     |
[INFO] [stdout] 409 |     fn synchronize(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `None`
[INFO] [stdout]    --> src/parser.rs:432:5
[INFO] [stdout]     |
[INFO] [stdout] 432 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NewParseError`
[INFO] [stdout]    --> src/parser.rs:433:5
[INFO] [stdout]     |
[INFO] [stdout] 433 |     NewParseError(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NewRuntimeError`
[INFO] [stdout]   --> src/interpreter.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     NewRuntimeError(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidSyntax`
[INFO] [stdout]   --> src/interpreter.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     InvalidSyntax,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidArguments`
[INFO] [stdout]   --> src/interpreter.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     InvalidArguments,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidNumberOfArguments`
[INFO] [stdout]   --> src/interpreter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     InvalidNumberOfArguments,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidNumberOfArgumentsForFunction`
[INFO] [stdout]   --> src/interpreter.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidNumberOfArgumentsForFunction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidNumberOfArgumentsForMethod`
[INFO] [stdout]   --> src/interpreter.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     InvalidNumberOfArgumentsForMethod,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Interpreter`
[INFO] [stdout]   --> src/interpreter.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Interpreter {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/interpreter.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new() -> Interpreter {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate`
[INFO] [stdout]   --> src/interpreter.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn evaluate(&mut self, stmts: Vec<Statement>) -> Result<(), RuntimeError> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_truthy`
[INFO] [stdout]   --> src/interpreter.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn is_truthy(val: &Object) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate_while_statement`
[INFO] [stdout]   --> src/interpreter.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn evaluate_while_statement(&mut self, cond: &Expression, body: &Statement) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate_if_statement`
[INFO] [stdout]   --> src/interpreter.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn evaluate_if_statement(&mut self, cond: Expression, then: Statement, alt: Option<Statement>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute_block`
[INFO] [stdout]    --> src/interpreter.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 |     fn execute_block(&mut self, statements: Vec<Statement>, env: Environment) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate_print_statement`
[INFO] [stdout]    --> src/interpreter.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn evaluate_print_statement(&mut self, expr: Expression) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `evaluate_expression`
[INFO] [stdout]    --> src/interpreter.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn evaluate_expression(&mut self, expr: Expression) -> Result<Object, RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval_prefix_expression`
[INFO] [stdout]    --> src/interpreter.rs:151:8
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn eval_prefix_expression(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `eval_infix_expression`
[INFO] [stdout]    --> src/interpreter.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn eval_infix_expression(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Nil`
[INFO] [stdout]  --> src/object.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Boolean`
[INFO] [stdout]  --> src/object.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Boolean(bool),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]  --> src/object.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Number(i64),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]  --> src/object.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     String(String),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/environment.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new() -> Environment {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `extend`
[INFO] [stdout]   --> src/environment.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn extend(enclosing: Environment) -> Environment {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `define`
[INFO] [stdout]   --> src/environment.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn define(&mut self, name: String, value: Object) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/environment.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn get(&self, name: &str) -> Option<Object> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assign`
[INFO] [stdout]   --> src/environment.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn assign(&mut self, name: String, value: Object) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_call_interpreter`
[INFO] [stdout]    --> src/main.rs:203:4
[INFO] [stdout]     |
[INFO] [stdout] 203 | fn test_call_interpreter(input: &str) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 self.evaluate(statements);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/interpreter.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |                 self.evaluate(statements);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 104 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "ddb13a91641702268d45ee93926d895e9fe6971a4ce8aa799544a27620cffdc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddb13a91641702268d45ee93926d895e9fe6971a4ce8aa799544a27620cffdc4", kill_on_drop: false }`
[INFO] [stdout] ddb13a91641702268d45ee93926d895e9fe6971a4ce8aa799544a27620cffdc4