[INFO] cloning repository https://github.com/jeppester/rust-interpreter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeppester/rust-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeppester%2Frust-interpreter"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeppester%2Frust-interpreter'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 601a7acf7d217b08994f5820f6c46bd6a4be8358
[INFO] testing jeppester/rust-interpreter against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeppester%2Frust-interpreter" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeppester/rust-interpreter on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jeppester/rust-interpreter
[INFO] finished tweaking git repo https://github.com/jeppester/rust-interpreter
[INFO] tweaked toml for git repo https://github.com/jeppester/rust-interpreter written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jeppester/rust-interpreter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7935e9d3aca52dfe1f512f2cc0e7512c113a0aa0bbf0a54b77e8c99099f0ebde
[INFO] running `"docker" "start" "-a" "7935e9d3aca52dfe1f512f2cc0e7512c113a0aa0bbf0a54b77e8c99099f0ebde"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling monkey-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lexer/mod.rs:68:7
[INFO] [stderr]    |
[INFO] [stderr] 68 |       ('0' <= ch && ch <= '9')
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Precedence`
[INFO] [stderr]   --> src/parser/mod.rs:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub type Precedence = u8;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LOWEST`
[INFO] [stderr]   --> src/parser/mod.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   pub const LOWEST: u8 = 0;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `EQUALS`
[INFO] [stderr]   --> src/parser/mod.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   pub const EQUALS: u8 = 1;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LESS_OR_GREATER`
[INFO] [stderr]   --> src/parser/mod.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   pub const LESS_OR_GREATER: u8 = 2;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SUM`
[INFO] [stderr]   --> src/parser/mod.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   pub const SUM: u8 = 3;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PRODUCT`
[INFO] [stderr]   --> src/parser/mod.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   pub const PRODUCT: u8 = 4;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PREFIX`
[INFO] [stderr]   --> src/parser/mod.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   pub const PREFIX: u8 = 5;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `CALL`
[INFO] [stderr]   --> src/parser/mod.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   pub const CALL: u8 = 6;
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_operator_precedence`
[INFO] [stderr]   --> src/parser/mod.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn get_operator_precedence(token_type: TokenType) -> Precedence {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Parser`
[INFO] [stderr]   --> src/parser/mod.rs:56:12
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub struct Parser {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_boolean`
[INFO] [stderr]   --> src/parser/mod.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn parse_boolean(parser: &mut Parser) -> Result<Expression, ParserError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_identifier`
[INFO] [stderr]   --> src/parser/mod.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub fn parse_identifier(parser: &mut Parser) -> Result<Expression, ParserError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_integer_literal`
[INFO] [stderr]   --> src/parser/mod.rs:84:8
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub fn parse_integer_literal(parser: &mut Parser) -> Result<Expression, ParserError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_prefix_expression`
[INFO] [stderr]   --> src/parser/mod.rs:95:8
[INFO] [stderr]    |
[INFO] [stderr] 95 | pub fn parse_prefix_expression(parser: &mut Parser) -> Result<Expression, ParserError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_infix_expression`
[INFO] [stderr]    --> src/parser/mod.rs:110:8
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub fn parse_infix_expression(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_call_expression`
[INFO] [stderr]    --> src/parser/mod.rs:130:8
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub fn parse_call_expression(
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_grouped_expression`
[INFO] [stderr]    --> src/parser/mod.rs:145:8
[INFO] [stderr]     |
[INFO] [stderr] 145 | pub fn parse_grouped_expression(parser: &mut Parser) -> Result<Expression, ParserError> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_if_expression`
[INFO] [stderr]    --> src/parser/mod.rs:154:8
[INFO] [stderr]     |
[INFO] [stderr] 154 | pub fn parse_if_expression(parser: &mut Parser) -> Result<Expression, ParserError> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_function_literal`
[INFO] [stderr]    --> src/parser/mod.rs:184:8
[INFO] [stderr]     |
[INFO] [stderr] 184 | pub fn parse_function_literal(parser: &mut Parser) -> Result<Expression, ParserError> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/parser/mod.rs:203:3
[INFO] [stderr]     |
[INFO] [stderr] 203 |   pub fn new(mut lexer: Lexer) -> Self {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_token`
[INFO] [stderr]    --> src/parser/mod.rs:241:3
[INFO] [stderr]     |
[INFO] [stderr] 241 |   pub fn next_token(&mut self) {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_program`
[INFO] [stderr]    --> src/parser/mod.rs:247:3
[INFO] [stderr]     |
[INFO] [stderr] 247 |   pub fn parse_program(&mut self) -> Program {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_block_statement`
[INFO] [stderr]    --> src/parser/mod.rs:275:3
[INFO] [stderr]     |
[INFO] [stderr] 275 |   pub fn parse_block_statement(&mut self) -> BlockStatement {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_statement`
[INFO] [stderr]    --> src/parser/mod.rs:298:3
[INFO] [stderr]     |
[INFO] [stderr] 298 |   pub fn parse_statement(&mut self) -> Result<Statement, ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_let_statement`
[INFO] [stderr]    --> src/parser/mod.rs:306:3
[INFO] [stderr]     |
[INFO] [stderr] 306 |   pub fn parse_let_statement(&mut self) -> Result<Statement, ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_return_statement`
[INFO] [stderr]    --> src/parser/mod.rs:334:3
[INFO] [stderr]     |
[INFO] [stderr] 334 |   pub fn parse_return_statement(&mut self) -> Result<Statement, ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_expression_statement`
[INFO] [stderr]    --> src/parser/mod.rs:353:3
[INFO] [stderr]     |
[INFO] [stderr] 353 |   pub fn parse_expression_statement(&mut self) -> Result<Statement, ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_expression`
[INFO] [stderr]    --> src/parser/mod.rs:363:3
[INFO] [stderr]     |
[INFO] [stderr] 363 |   pub fn parse_expression(&mut self, precedence: Precedence) -> Result<Expression, ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_function_arguments`
[INFO] [stderr]    --> src/parser/mod.rs:389:3
[INFO] [stderr]     |
[INFO] [stderr] 389 |   pub fn parse_function_arguments(&mut self) -> Result<Vec<Identifier>, ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_call_arguments`
[INFO] [stderr]    --> src/parser/mod.rs:417:3
[INFO] [stderr]     |
[INFO] [stderr] 417 |   pub fn parse_call_arguments(&mut self) -> Result<Vec<Expression>, ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `current_token_is`
[INFO] [stderr]    --> src/parser/mod.rs:441:3
[INFO] [stderr]     |
[INFO] [stderr] 441 |   pub fn current_token_is(&mut self, token_type: TokenType) -> bool {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek_token_is`
[INFO] [stderr]    --> src/parser/mod.rs:445:3
[INFO] [stderr]     |
[INFO] [stderr] 445 |   pub fn peek_token_is(&mut self, token_type: TokenType) -> bool {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `expect_peek`
[INFO] [stderr]    --> src/parser/mod.rs:449:3
[INFO] [stderr]     |
[INFO] [stderr] 449 |   pub fn expect_peek(&mut self, token_type: TokenType) -> Result<(), ParserError> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `current_precedence`
[INFO] [stderr]    --> src/parser/mod.rs:463:3
[INFO] [stderr]     |
[INFO] [stderr] 463 |   pub fn current_precedence(&mut self) -> Precedence {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek_precedence`
[INFO] [stderr]    --> src/parser/mod.rs:467:3
[INFO] [stderr]     |
[INFO] [stderr] 467 |   pub fn peek_precedence(&mut self) -> Precedence {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `prefix_parser_function_for`
[INFO] [stderr]    --> src/parser/mod.rs:471:3
[INFO] [stderr]     |
[INFO] [stderr] 471 | /   pub fn prefix_parser_function_for(
[INFO] [stderr] 472 | |     &mut self,
[INFO] [stderr] 473 | |     token_type: TokenType,
[INFO] [stderr] 474 | |   ) -> Result<&fn(&mut Parser) -> Result<Expression, ParserError>, ParserError> {
[INFO] [stderr] ...   |
[INFO] [stderr] 480 | |     }
[INFO] [stderr] 481 | |   }
[INFO] [stderr]     | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `register_prefix`
[INFO] [stderr]    --> src/parser/mod.rs:483:3
[INFO] [stderr]     |
[INFO] [stderr] 483 | /   pub fn register_prefix(
[INFO] [stderr] 484 | |     &mut self,
[INFO] [stderr] 485 | |     token_type: TokenType,
[INFO] [stderr] 486 | |     parser_function: fn(&mut Parser) -> Result<Expression, ParserError>,
[INFO] [stderr] ...   |
[INFO] [stderr] 490 | |       .insert(token_type, parser_function);
[INFO] [stderr] 491 | |   }
[INFO] [stderr]     | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `register_infix`
[INFO] [stderr]    --> src/parser/mod.rs:493:3
[INFO] [stderr]     |
[INFO] [stderr] 493 | /   pub fn register_infix(
[INFO] [stderr] 494 | |     &mut self,
[INFO] [stderr] 495 | |     token_type: TokenType,
[INFO] [stderr] 496 | |     parser_function: fn(&mut Parser, Expression) -> Result<Expression, ParserError>,
[INFO] [stderr] ...   |
[INFO] [stderr] 500 | |       .insert(token_type, parser_function);
[INFO] [stderr] 501 | |   }
[INFO] [stderr]     | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/block_statement.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/block_statement.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/boolean_literal.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/boolean_literal.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/call_expression.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/call_expression.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/function_literal.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/function_literal.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/identifier.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/identifier.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/if_expression.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/if_expression.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/infix_expression.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/infix_expression.rs:17:3
[INFO] [stderr]    |
[INFO] [stderr] 17 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/integer_literal.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/integer_literal.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/let_statement.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/let_statement.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/prefix_expression.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/prefix_expression.rs:16:3
[INFO] [stderr]    |
[INFO] [stderr] 16 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/return_statement.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/return_statement.rs:15:3
[INFO] [stderr]    |
[INFO] [stderr] 15 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BooleanLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:31:3
[INFO] [stderr]    |
[INFO] [stderr] 31 |   BooleanLiteral(BooleanLiteral),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/ast/mod.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   Identifier(Identifier),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IntegerLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:33:3
[INFO] [stderr]    |
[INFO] [stderr] 33 |   IntegerLiteral(IntegerLiteral),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PrefixExpression`
[INFO] [stderr]   --> src/ast/mod.rs:34:3
[INFO] [stderr]    |
[INFO] [stderr] 34 |   PrefixExpression(PrefixExpression),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InfixExpression`
[INFO] [stderr]   --> src/ast/mod.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   InfixExpression(InfixExpression),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IfExpression`
[INFO] [stderr]   --> src/ast/mod.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   IfExpression(IfExpression),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FunctionLiteral`
[INFO] [stderr]   --> src/ast/mod.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   FunctionLiteral(FunctionLiteral),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CallExpression`
[INFO] [stderr]   --> src/ast/mod.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   CallExpression(CallExpression),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/mod.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/mod.rs:55:3
[INFO] [stderr]    |
[INFO] [stderr] 55 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LetStatement`
[INFO] [stderr]   --> src/ast/mod.rs:71:3
[INFO] [stderr]    |
[INFO] [stderr] 71 |   LetStatement(LetStatement),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ReturnStatement`
[INFO] [stderr]   --> src/ast/mod.rs:72:3
[INFO] [stderr]    |
[INFO] [stderr] 72 |   ReturnStatement(ReturnStatement),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expression`
[INFO] [stderr]   --> src/ast/mod.rs:73:3
[INFO] [stderr]    |
[INFO] [stderr] 73 |   Expression(Expression),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlockStatement`
[INFO] [stderr]   --> src/ast/mod.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   BlockStatement(BlockStatement),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/mod.rs:78:3
[INFO] [stderr]    |
[INFO] [stderr] 78 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]   --> src/ast/mod.rs:87:3
[INFO] [stderr]    |
[INFO] [stderr] 87 |   pub fn to_string(&self) -> String {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Program`
[INFO] [stderr]   --> src/ast/mod.rs:97:12
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub struct Program {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]    --> src/ast/mod.rs:102:3
[INFO] [stderr]     |
[INFO] [stderr] 102 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_string`
[INFO] [stderr]    --> src/ast/mod.rs:110:3
[INFO] [stderr]     |
[INFO] [stderr] 110 |   pub fn to_string(&self) -> String {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 80 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "7935e9d3aca52dfe1f512f2cc0e7512c113a0aa0bbf0a54b77e8c99099f0ebde"`
[INFO] running `"docker" "rm" "-f" "7935e9d3aca52dfe1f512f2cc0e7512c113a0aa0bbf0a54b77e8c99099f0ebde"`
[INFO] [stdout] 7935e9d3aca52dfe1f512f2cc0e7512c113a0aa0bbf0a54b77e8c99099f0ebde
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] bdff1c6813c098b1cc24548c7c1f534f3e4c299811eb4a5b9b73d38e8aeee3a8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "bdff1c6813c098b1cc24548c7c1f534f3e4c299811eb4a5b9b73d38e8aeee3a8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling monkey-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lexer/mod.rs:68:7
[INFO] [stderr]    |
[INFO] [stderr] 68 |       ('0' <= ch && ch <= '9')
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/block_statement.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/boolean_literal.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/call_expression.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/function_literal.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/identifier.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/if_expression.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/infix_expression.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/integer_literal.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/prefix_expression.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/mod.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlockStatement`
[INFO] [stderr]   --> src/ast/mod.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   BlockStatement(BlockStatement),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/mod.rs:78:3
[INFO] [stderr]    |
[INFO] [stderr] 78 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]    --> src/ast/mod.rs:102:3
[INFO] [stderr]     |
[INFO] [stderr] 102 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `"docker" "inspect" "bdff1c6813c098b1cc24548c7c1f534f3e4c299811eb4a5b9b73d38e8aeee3a8"`
[INFO] running `"docker" "rm" "-f" "bdff1c6813c098b1cc24548c7c1f534f3e4c299811eb4a5b9b73d38e8aeee3a8"`
[INFO] [stdout] bdff1c6813c098b1cc24548c7c1f534f3e4c299811eb4a5b9b73d38e8aeee3a8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 19de25e969ea80efc3bd19a26e6b185fc95689d6d1775982971d71d77f1987a8
[INFO] running `"docker" "start" "-a" "19de25e969ea80efc3bd19a26e6b185fc95689d6d1775982971d71d77f1987a8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lexer/mod.rs:68:7
[INFO] [stderr]    |
[INFO] [stderr] 68 |       ('0' <= ch && ch <= '9')
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/block_statement.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/boolean_literal.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/call_expression.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/function_literal.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/identifier.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/if_expression.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/infix_expression.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/integer_literal.rs:10:3
[INFO] [stderr]    |
[INFO] [stderr] 10 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/prefix_expression.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/mod.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlockStatement`
[INFO] [stderr]   --> src/ast/mod.rs:74:3
[INFO] [stderr]    |
[INFO] [stderr] 74 |   BlockStatement(BlockStatement),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]   --> src/ast/mod.rs:78:3
[INFO] [stderr]    |
[INFO] [stderr] 78 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `token_literal`
[INFO] [stderr]    --> src/ast/mod.rs:102:3
[INFO] [stderr]     |
[INFO] [stderr] 102 |   pub fn token_literal(&self) -> Literal {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/monkey_interpreter-d58ed79ca81cd550
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test parser::tests::test_boolean_expression ... ok
[INFO] [stdout] test parser::tests::test_call_expression ... ok
[INFO] [stdout] test parser::tests::test_if_expression ... ok
[INFO] [stdout] test parser::tests::test_integer_literal_expression ... ok
[INFO] [stdout] test parser::tests::test_if_else_expression ... ok
[INFO] [stdout] test parser::tests::test_let_statements ... ok
[INFO] [stdout] test parser::tests::test_identifier_expression ... ok
[INFO] [stdout] test ast::tests::test_to_string ... ok
[INFO] [stdout] test parser::tests::test_return_statements ... ok
[INFO] [stdout] test parser::tests::test_infix_expressions ... ok
[INFO] [stdout] test parser::tests::test_function_literal ... ok
[INFO] [stdout] test parser::tests::test_prefix_expressions ... ok
[INFO] [stdout] test lexer::tests::test_next_token ... ok
[INFO] [stdout] test parser::tests::test_operator_precedence_parsing ... ok
[INFO] [stdout] test parser::tests::test_function_parameter_parsing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "19de25e969ea80efc3bd19a26e6b185fc95689d6d1775982971d71d77f1987a8"`
[INFO] running `"docker" "rm" "-f" "19de25e969ea80efc3bd19a26e6b185fc95689d6d1775982971d71d77f1987a8"`
[INFO] [stdout] 19de25e969ea80efc3bd19a26e6b185fc95689d6d1775982971d71d77f1987a8