[INFO] cloning repository https://github.com/tu6ge/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tu6ge/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftu6ge%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftu6ge%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11132e7d0d225a162d9420063020d17c74ae4868
[INFO] checking tu6ge/rlox against try#b152f5575a2ac7126ae0019e4e679abe9399213e for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftu6ge%2Frlox" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tu6ge/rlox
[INFO] finished tweaking git repo https://github.com/tu6ge/rlox
[INFO] tweaked toml for git repo https://github.com/tu6ge/rlox written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tu6ge/rlox on toolchain b152f5575a2ac7126ae0019e4e679abe9399213e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tu6ge/rlox 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" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking tu6ge/rlox against try#b152f5575a2ac7126ae0019e4e679abe9399213e for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftu6ge%2Frlox" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tu6ge/rlox
[INFO] finished tweaking git repo https://github.com/tu6ge/rlox
[INFO] tweaked toml for git repo https://github.com/tu6ge/rlox written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tu6ge/rlox on toolchain b152f5575a2ac7126ae0019e4e679abe9399213e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tu6ge/rlox 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" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4
[INFO] running `Command { std: "docker" "start" "f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `error_message`
[INFO] [stdout]   --> src/parser/mod.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 | macro_rules! error_message {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `error_message`
[INFO] [stdout]   --> src/parser/mod.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 | macro_rules! error_message {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/mod.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut initializer;
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser/mod.rs:98:13
[INFO] [stdout]    |
[INFO] [stdout] 98 |         let mut initializer;
[INFO] [stdout]    |             ----^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `RuntimeError` is more private than the item `Interpreter::interpret`
[INFO] [stdout]   --> src/parser/inter.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn interpret(&mut self, stmt: &[Stmt]) -> Result<(), RuntimeError> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `Interpreter::interpret` is reachable at visibility `pub(in crate::parser)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `RuntimeError` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/parser/inter.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum RuntimeError {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]  --> src/lexer/mod.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Lexer {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lexer/mod.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  13 | impl Lexer {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout]  14 |     pub fn new(source: &str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  25 |     pub fn scan_tokens(&mut self) -> Vec<Token> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  42 |     fn scan_token(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn is_at_end(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     fn advance(&mut self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn add_token(&mut self, ttype: TokenType, literal: LiteralTypes) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn is_next_expected(&mut self, expected: u8) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn peek(&self) -> u8 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn peek_next(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn string(&mut self) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 |     fn number(&mut self) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 204 |     fn identifier(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn is_alpha(&self, c: u8) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 229 |     fn get_keyword(&self, word: &str) -> Option<TokenType> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Parser {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser/mod.rs:38:12
[INFO] [stdout]     |
[INFO] [stdout]  37 | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  38 |     pub fn new(source: &str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  43 |     pub fn parse(&mut self) -> Result<Vec<Stmt>, Error> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  52 |     fn declaration(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  58 |     fn var_declaration(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  74 |     fn statement(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     fn for_statement(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 145 |     fn while_statement(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     fn if_statement(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     fn block(&mut self) -> Result<Block, Error> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 187 |     fn print_statement(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn expression_statement(&mut self) -> Result<Stmt, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 200 |     pub fn expression(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 204 |     fn assignment(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 224 |     fn or(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 238 |     fn and(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 255 |     fn equality(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 271 |     fn comparison(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 291 |     fn term(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 306 |     fn factor(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 322 |     fn unary(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 335 |     fn primary(&mut self) -> Result<Expr, Error> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 363 |     fn consume(&mut self, expect: &TokenType, message: &str) -> Result<(), Error> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 371 |     fn error(&self, message: &str) -> Error {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 374 |     fn token_error(&self, token: &Token, message: &str) -> Error {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 382 |     fn is_match(&mut self, tokens: &[TokenType]) -> bool {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 391 |     fn check(&self, ttype: &TokenType) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 398 |     fn advance(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 403 |     fn is_at_end(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 406 |     fn peek(&self) -> &Token {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 409 |     fn previous(&self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]    --> src/parser/mod.rs:415:6
[INFO] [stdout]     |
[INFO] [stdout] 415 | enum Error {
[INFO] [stdout]     |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]  --> src/parser/ast.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Expr {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Unary` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Unary {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Binary` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Binary {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Comparison` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Comparison {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Grouping` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Grouping {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Variable` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct Variable {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Assign` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Assign {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logical` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Logical {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]   --> src/parser/ast.rs:58:11
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub trait Visitor<T> {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `accept` is never used
[INFO] [stdout]   --> src/parser/ast.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl Expr {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 70 |     pub fn accept<T>(&self, visitor: &mut dyn Visitor<T>) -> T {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Environment` is never constructed
[INFO] [stdout]  --> src/parser/env.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Environment {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `new_with_enclosing`, `define`, `get`, and `assign` are never used
[INFO] [stdout]   --> src/parser/env.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Environment {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn new_with_enclosing(enclosing: Rc<RefCell<Environment>>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn define(&mut self, key: String, value: LiteralTypes) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn get(&self, token: &Token) -> Option<LiteralTypes> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn assign(&mut self, name: &Token, value: LiteralTypes) -> Result<(), ()> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]   --> src/parser/inter.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Interpreter {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RuntimeError` is never used
[INFO] [stdout]   --> src/parser/inter.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum RuntimeError {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `interpret`, `execute_block`, `execute`, `evaluate`, and `error` are never used
[INFO] [stdout]   --> src/parser/inter.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Interpreter {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 22 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn interpret(&mut self, stmt: &[Stmt]) -> Result<(), RuntimeError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn execute_block(&mut self, stmt: &[Stmt], env: Environment) -> Result<(), RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn execute(&mut self, stmt: &Stmt) -> Result<(), RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn evaluate(&mut self, ast: &Expr) -> Result<LiteralTypes, RuntimeError> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn error(&self, token: &Token, message: &str) -> RuntimeError {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Stmt` is never used
[INFO] [stdout]  --> src/parser/stmt.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Stmt {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Expression` is never constructed
[INFO] [stdout]   --> src/parser/stmt.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Expression {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Print` is never constructed
[INFO] [stdout]   --> src/parser/stmt.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Print {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Var` is never constructed
[INFO] [stdout]   --> src/parser/stmt.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Var {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/parser/stmt.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `If` is never constructed
[INFO] [stdout]   --> src/parser/stmt.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct If {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `While` is never constructed
[INFO] [stdout]   --> src/parser/stmt.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct While {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]   --> src/parser/stmt.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub trait Visitor<T> {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `accept` is never used
[INFO] [stdout]   --> src/parser/stmt.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl Stmt {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 56 |     pub fn accept<T>(&self, visitor: &mut dyn Visitor<T>) -> T {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `RuntimeError` is more private than the item `inter::Interpreter::interpret`
[INFO] [stdout]   --> src/parser/inter.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn interpret(&mut self, stmt: &[Stmt]) -> Result<(), RuntimeError> {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `inter::Interpreter::interpret` is reachable at visibility `pub(in crate::parser)`
[INFO] [stdout]    |
[INFO] [stdout] note: but type `RuntimeError` is only usable at visibility `pub(self)`
[INFO] [stdout]   --> src/parser/inter.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum RuntimeError {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/parser/mod.rs:416:12
[INFO] [stdout]     |
[INFO] [stdout] 416 |     String(String),
[INFO] [stdout]     |     ------ ^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 416 -     String(String),
[INFO] [stdout] 416 +     String(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser/inter.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     String(std::string::String),
[INFO] [stdout]    |     ------ ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RuntimeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     String(std::string::String),
[INFO] [stdout] 18 +     String(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser/inter.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 |         inter.interpret(&stmt);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 302 |         let _ = inter.interpret(&stmt);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser/inter.rs:314:9
[INFO] [stdout]     |
[INFO] [stdout] 314 |         inter.interpret(&stmt);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 314 |         let _ = inter.interpret(&stmt);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser/inter.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 326 |         inter.interpret(&stmt);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 326 |         let _ = inter.interpret(&stmt);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser/inter.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |         inter.interpret(&stmt);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 355 |         let _ = inter.interpret(&stmt);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser/inter.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         inter.interpret(&stmt);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 365 |         let _ = inter.interpret(&stmt);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser/inter.rs:383:9
[INFO] [stdout]     |
[INFO] [stdout] 383 |         inter.interpret(&stmt);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 383 |         let _ = inter.interpret(&stmt);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4", kill_on_drop: false }`
[INFO] [stdout] f438ff4830ff5a69a35aab584e5380fae0c9487cd4afb6f1eb69ebdf1acbb1b4
