[INFO] fetching crate bellronos 0.0.1...
[INFO] checking bellronos-0.0.1 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate bellronos 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate bellronos 0.0.1
[INFO] finished tweaking crates.io crate bellronos 0.0.1
[INFO] tweaked toml for crates.io crate bellronos 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bellronos 0.0.1 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "9f814aa54a47edeb65fb2a86bfe39926a5586e9917c84e3db6ff40f998e8bf4a", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking bellronos v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/bellronos.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn main() -> Result<(), BellronosError> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Expr`, `Generator`, `Await`, `Attribute`, and `InteropCall` are never constructed
[INFO] [stdout]    --> src/ast/ast.rs:40:5
[INFO] [stdout]     |
[INFO] [stdout] 19  | pub enum ASTNode {
[INFO] [stdout]     |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 40  |     Expr {
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85  |     Generator {
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     Await {
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     Attribute {
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     InteropCall {
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ASTNode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ASTNode` is never used
[INFO] [stdout]   --> src/ast/ast.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum ASTNode {
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BellronosError` is never used
[INFO] [stdout]   --> src/error/error.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum BellronosError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Type` and `Package` are never constructed
[INFO] [stdout]   --> src/error/error.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum BellronosError {
[INFO] [stdout]    |          -------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 24 |     Type(String),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     Package(String),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BellronosError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LanguageInterop` is never constructed
[INFO] [stdout]   --> src/interop/interop.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct LanguageInterop;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/interop/interop.rs:23:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl LanguageInterop {
[INFO] [stdout]     | -------------------- associated items in this implementation
[INFO] [stdout] 23  |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27  |     pub fn execute(&self, language: &str, code: &str) -> Result<Value, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42  |     fn execute_c(&self, code: &str) -> Result<Value, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66  |     fn execute_python(&self, code: &str) -> Result<Value, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74  |     fn execute_javascript(&self, code: &str) -> Result<Value, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82  |     fn execute_java(&self, code: &str) -> Result<Value, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 105 |     fn execute_rust(&self, code: &str) -> Result<Value, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     fn execute_swift(&self, code: &str) -> Result<Value, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Environment` is never used
[INFO] [stdout]   --> src/interpreter/interpreter.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type Environment = Rc<RefCell<HashMap<String, Value>>>;
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]   --> src/interpreter/interpreter.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum Value {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BellronosInterpreter` is never constructed
[INFO] [stdout]    --> src/interpreter/interpreter.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct BellronosInterpreter {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `run`, `interpret`, and `interpret_with_env` are never used
[INFO] [stdout]    --> src/interpreter/interpreter.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | impl BellronosInterpreter {
[INFO] [stdout]     | ------------------------- associated items in this implementation
[INFO] [stdout] 110 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn run(&mut self, code: &str, _filename: &str) -> Result<(), BellronosError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     fn interpret(&mut self, node: &ASTNode) -> Result<Value, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 402 |     fn interpret_with_env(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Token` is never used
[INFO] [stdout]   --> src/lexer/lexer.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum Token {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]   --> src/lexer/lexer.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub struct Lexer {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/lexer/lexer.rs:72:12
[INFO] [stdout]     |
[INFO] [stdout] 71  | impl Lexer {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] 72  |     pub fn new(input: &str) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 81  |     pub fn tokenize(&mut self) -> Result<Vec<Token>, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90  |     fn next_token(&mut self) -> Result<Option<Token>, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     fn tokenize_string(&mut self) -> Result<Option<Token>, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 239 |     fn tokenize_number(&mut self) -> Result<Option<Token>, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 255 |     fn tokenize_identifier(&mut self) -> Result<Option<Token>, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 285 |     fn current_char(&self) -> char {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     fn advance(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 294 |     fn advance_line(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 300 |     fn skip_whitespace(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PACKAGE_REGISTRY_URL` is never used
[INFO] [stdout]   --> src/package_manager/package_manager.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const PACKAGE_REGISTRY_URL: &str =
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GITHUB_REPO_URL` is never used
[INFO] [stdout]   --> src/package_manager/package_manager.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const GITHUB_REPO_URL: &str = "https://github.com/Architecture-Mechanism/bellronos_package_manager";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PackageMetadata` is never constructed
[INFO] [stdout]   --> src/package_manager/package_manager.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct PackageMetadata {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PackageManager` is never constructed
[INFO] [stdout]   --> src/package_manager/package_manager.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct PackageManager {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/package_manager/package_manager.rs:39:12
[INFO] [stdout]     |
[INFO] [stdout] 38  | impl PackageManager {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout] 39  |     pub fn new(package_dir: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45  |     pub fn install_package(&self, package_name: &str) -> Result<(), BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 81  |     pub fn load_package(&self, package_name: &str) -> Result<String, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 98  |     pub fn list_installed_packages(&self) -> Result<Vec<String>, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     fn fetch_package_metadata(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn download_package(&self, metadata: &PackageMetadata) -> Result<String, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub fn update_package(&self, package_name: &str) -> Result<(), BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     fn get_installed_package_version(&self, package_name: &str) -> Result<String, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub fn search_packages(&self, query: &str) -> Result<Vec<String>, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |     pub fn get_package_info(&self, package_name: &str) -> Result<String, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/parser.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Parser {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser/parser.rs:27:12
[INFO] [stdout]     |
[INFO] [stdout] 26  | impl Parser {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout] 27  |     pub fn new(tokens: Vec<Token>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 34  |     pub fn parse(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 42  |     fn parse_statement(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 59  |     fn parse_import(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 75  |     fn parse_function_def(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91  |     fn parse_class_def(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn parse_assignment(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     fn parse_if(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn parse_while(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 138 |     fn parse_for(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn parse_return(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn parse_async(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 |     fn parse_yield(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     fn parse_closure(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     fn parse_expression(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 205 |     fn parse_binary_operation(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |     fn parse_unary(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 249 |     fn parse_primary(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 290 |     fn parse_function_call(&mut self, name: &str) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 310 |     fn parse_list(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 327 |     fn parse_dict(&mut self) -> Result<ASTNode, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 347 |     fn parse_function_args(&mut self) -> Result<Vec<(String, Type)>, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 367 |     fn parse_return_type(&mut self) -> Result<Type, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 376 |     fn parse_type(&mut self) -> Result<Type, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 406 |     fn parse_block(&mut self) -> Result<Vec<ASTNode>, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 414 |     fn expect_identifier(&mut self) -> Result<String, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 426 |     fn expect_token(&mut self, expected: Token) -> Result<(), BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 439 |     fn current_token(&self) -> Token {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 446 |     fn advance(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StandardLibrary` is never constructed
[INFO] [stdout]   --> src/standard_library/standard_library.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct StandardLibrary {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `init_math`, `init_io`, `init_string`, and `get_module` are never used
[INFO] [stdout]   --> src/standard_library/standard_library.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl StandardLibrary {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 24 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn init_math(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn init_io(&mut self) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     fn init_string(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub fn get_module(&self, name: &str) -> Option<&HashMap<String, Value>> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InteropType` is never used
[INFO] [stdout]   --> src/type_system/type_system.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum InteropType {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InteropLanguage` is never used
[INFO] [stdout]   --> src/type_system/type_system.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum InteropLanguage {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `infer_type` is never used
[INFO] [stdout]   --> src/type_system/type_system.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl InteropLanguage {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 63 |     pub fn infer_type(&self, code: &str) -> Result<InteropType, BellronosError> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Type` is never used
[INFO] [stdout]    --> src/type_system/type_system.rs:111:10
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub enum Type {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TypeChecker` is never constructed
[INFO] [stdout]    --> src/type_system/type_system.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct TypeChecker {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/type_system/type_system.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 133 | impl TypeChecker {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout] 134 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn check(&mut self, node: &ASTNode) -> Result<Type, BellronosError> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 399 |     fn check_binary_op(&self, left: &Type, op: &str, right: &Type) -> Result<Type, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 423 |     fn is_compatible(&self, actual: &Type, expected: &Type) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 445 |     pub fn get_type(&self, name: &str) -> Option<&Type> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 449 |     pub fn set_type(&mut self, name: String, typ: Type) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 453 |     pub fn get_class_method(&self, class_name: &str, method_name: &str) -> Option<&Type> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 459 |     pub fn add_class_method(&mut self, class_name: &str, method_name: String, method_type: Type) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interop_type_to_bellronos_type` is never used
[INFO] [stdout]    --> src/type_system/type_system.rs:483:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | pub fn interop_type_to_bellronos_type(interop_type: InteropType) -> Type {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bellronos_type_to_interop_type` is never used
[INFO] [stdout]    --> src/type_system/type_system.rs:487:8
[INFO] [stdout]     |
[INFO] [stdout] 487 | pub fn bellronos_type_to_interop_type(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/interpreter/interpreter.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |     Closure(Vec<String>, Vec<ASTNode>, Environment),
[INFO] [stdout]    |     ------- ^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 48 -     Closure(Vec<String>, Vec<ASTNode>, Environment),
[INFO] [stdout] 48 +     Closure((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> src/interpreter/interpreter.rs:49:15
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Generator(Vec<ASTNode>, Environment, usize),
[INFO] [stdout]    |     --------- ^^^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 49 -     Generator(Vec<ASTNode>, Environment, usize),
[INFO] [stdout] 49 +     Generator((), (), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Int` is never constructed
[INFO] [stdout]   --> src/interpreter/interpreter.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub enum Value {
[INFO] [stdout]    |          ----- variant in this enum
[INFO] [stdout] 34 |     Int(i64),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Value` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `type_checker` is never read
[INFO] [stdout]    --> src/interpreter/interpreter.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct BellronosInterpreter {
[INFO] [stdout]     |            -------------------- field in this struct
[INFO] [stdout] 102 |     global_env: Environment,
[INFO] [stdout] 103 |     type_checker: TypeChecker,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GITHUB_REPO_URL` is never used
[INFO] [stdout]   --> src/package_manager/package_manager.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const GITHUB_REPO_URL: &str = "https://github.com/Architecture-Mechanism/bellronos_package_manager";
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `list_installed_packages`, `update_package`, `get_installed_package_version`, `search_packages`, and `get_package_info` are never used
[INFO] [stdout]    --> src/package_manager/package_manager.rs:98:12
[INFO] [stdout]     |
[INFO] [stdout] 38  | impl PackageManager {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 98  |     pub fn list_installed_packages(&self) -> Result<Vec<String>, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 169 |     pub fn update_package(&self, package_name: &str) -> Result<(), BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 192 |     fn get_installed_package_version(&self, package_name: &str) -> Result<String, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 217 |     pub fn search_packages(&self, query: &str) -> Result<Vec<String>, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 234 |     pub fn get_package_info(&self, package_name: &str) -> Result<String, BellronosError> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/type_system/type_system.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub enum InteropType {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 23 |     CInt,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     CFloat,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 25 |     CString,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 26 |     PyInt,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     PyFloat,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 28 |     PyString,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 29 |     PyList,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 30 |     PyDict,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 31 |     JsNumber,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     JsString,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 33 |     JsBoolean,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 34 |     JsArray,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 35 |     JsObject,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 36 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InteropType` 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: enum `InteropLanguage` is never used
[INFO] [stdout]   --> src/type_system/type_system.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum InteropLanguage {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `infer_type` is never used
[INFO] [stdout]   --> src/type_system/type_system.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl InteropLanguage {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 63 |     pub fn infer_type(&self, code: &str) -> Result<InteropType, BellronosError> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Function`, `Class`, `Instance`, and `Interop` are never constructed
[INFO] [stdout]    --> src/type_system/type_system.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub enum Type {
[INFO] [stdout]     |          ---- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 118 |     Function(Vec<Type>, Box<Type>),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 119 |     Class(String),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 120 |     Instance(String),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 124 |     Interop(InteropType),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` 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: fields `type_env` and `class_env` are never read
[INFO] [stdout]    --> src/type_system/type_system.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 128 | pub struct TypeChecker {
[INFO] [stdout]     |            ----------- fields in this struct
[INFO] [stdout] 129 |     type_env: HashMap<String, Type>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 130 |     class_env: HashMap<String, HashMap<String, Type>>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TypeChecker` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/type_system/type_system.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 133 | impl TypeChecker {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn check(&mut self, node: &ASTNode) -> Result<Type, BellronosError> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 399 |     fn check_binary_op(&self, left: &Type, op: &str, right: &Type) -> Result<Type, BellronosError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 423 |     fn is_compatible(&self, actual: &Type, expected: &Type) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 445 |     pub fn get_type(&self, name: &str) -> Option<&Type> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 449 |     pub fn set_type(&mut self, name: String, typ: Type) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 453 |     pub fn get_class_method(&self, class_name: &str, method_name: &str) -> Option<&Type> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 459 |     pub fn add_class_method(&mut self, class_name: &str, method_name: String, method_type: Type) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interop_type_to_bellronos_type` is never used
[INFO] [stdout]    --> src/type_system/type_system.rs:483:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | pub fn interop_type_to_bellronos_type(interop_type: InteropType) -> Type {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bellronos_type_to_interop_type` is never used
[INFO] [stdout]    --> src/type_system/type_system.rs:487:8
[INFO] [stdout]     |
[INFO] [stdout] 487 | pub fn bellronos_type_to_interop_type(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v1.2.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "ea3e3e6a7f8dccfc80457ac3e6947ad5167469764c480225135907d67cffb62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea3e3e6a7f8dccfc80457ac3e6947ad5167469764c480225135907d67cffb62b", kill_on_drop: false }`
[INFO] [stdout] ea3e3e6a7f8dccfc80457ac3e6947ad5167469764c480225135907d67cffb62b
