[INFO] cloning repository https://github.com/makanai5610/iron-monkey-interpreter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/makanai5610/iron-monkey-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakanai5610%2Firon-monkey-interpreter"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakanai5610%2Firon-monkey-interpreter'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e305e35d07e20bcc9b63014ec140354031c75aa2
[INFO] checking makanai5610/iron-monkey-interpreter against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmakanai5610%2Firon-monkey-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/makanai5610/iron-monkey-interpreter on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/makanai5610/iron-monkey-interpreter
[INFO] finished tweaking git repo https://github.com/makanai5610/iron-monkey-interpreter
[INFO] tweaked toml for git repo https://github.com/makanai5610/iron-monkey-interpreter written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/makanai5610/iron-monkey-interpreter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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=forbid" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4c3b97a11ca4066ed2313f237dfba46627284abbe3fcca483aa69dfaee509086
[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" "4c3b97a11ca4066ed2313f237dfba46627284abbe3fcca483aa69dfaee509086"`
[INFO] [stderr]     Checking whoami v0.5.3
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]  --> src/ast.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Let(LetStatement),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/ast.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Return(ReturnStatement),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expression`
[INFO] [stderr]   --> src/ast.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Expression(ExpressionStatement),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/ast.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     pub(crate) fn new(token: Box<Token>, name: Identifier, value: Box<Expression>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/ast.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub(crate) fn new(token: Box<Token>, return_value: Box<Expression>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/ast.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub(crate) fn new(expression: Box<Expression>) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]    --> src/ast.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     Identifier(Identifier),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]    --> src/ast.rs:118:5
[INFO] [stderr]     |
[INFO] [stderr] 118 |     Integer(IntegerLiteral),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Prefix`
[INFO] [stderr]    --> src/ast.rs:119:5
[INFO] [stderr]     |
[INFO] [stderr] 119 |     Prefix(PrefixExpression),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Infix`
[INFO] [stderr]    --> src/ast.rs:120:5
[INFO] [stderr]     |
[INFO] [stderr] 120 |     Infix(InfixExpression),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]    --> src/ast.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 121 |     Boolean(Boolean),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/ast.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub(crate) fn new(token: Box<Token>) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/ast.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     pub(crate) fn new(token: Box<Token>) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/ast.rs:209:5
[INFO] [stderr]     |
[INFO] [stderr] 209 |     pub(crate) fn new(token: Box<Token>, right: Box<Expression>) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/ast.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     pub(crate) fn new(token: Box<Token>, left: Box<Expression>, right: Box<Expression>) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/ast.rs:270:5
[INFO] [stderr]     |
[INFO] [stderr] 270 |     pub(crate) fn new(token: Box<Token>, value: bool) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Program`
[INFO] [stderr]    --> src/ast.rs:287:1
[INFO] [stderr]     |
[INFO] [stderr] 287 | pub(crate) type Program = Vec<Statement>;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string`
[INFO] [stderr]    --> src/ast.rs:289:1
[INFO] [stderr]     |
[INFO] [stderr] 289 | pub(crate) fn string(program: &Program) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NoneToken`
[INFO] [stderr]  --> src/error.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     NoneToken,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PeekToken`
[INFO] [stderr]  --> src/error.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     PeekToken(TokenType, Option<Box<Token>>),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Statement`
[INFO] [stderr]  --> src/error.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Statement(ParseStatementError),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expression`
[INFO] [stderr]  --> src/error.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Expression(ParseExpressionError),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Let`
[INFO] [stderr]   --> src/error.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Let,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Return`
[INFO] [stderr]   --> src/error.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Return,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expression`
[INFO] [stderr]   --> src/error.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Expression,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NoPrefix`
[INFO] [stderr]   --> src/error.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     NoPrefix(Option<Box<Token>>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Prefix`
[INFO] [stderr]   --> src/error.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Prefix,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Infix`
[INFO] [stderr]   --> src/error.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Infix,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]   --> src/error.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Boolean,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Parser`
[INFO] [stderr]  --> src/parser.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Parser {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/parser.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn new(lexer: Lexer) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `next_token`
[INFO] [stderr]   --> src/parser.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn next_token(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_program`
[INFO] [stderr]   --> src/parser.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn parse_program(&mut self) -> Program {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_statement`
[INFO] [stderr]   --> src/parser.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn parse_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_let_statement`
[INFO] [stderr]   --> src/parser.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn parse_let_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_return_statement`
[INFO] [stderr]    --> src/parser.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     fn parse_return_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_expression_statement`
[INFO] [stderr]    --> src/parser.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn parse_expression_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_expression`
[INFO] [stderr]    --> src/parser.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 |     fn parse_expression(&mut self, precedence: Precedence) -> Result<Box<Expression>, ParseError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_prefix_expression`
[INFO] [stderr]    --> src/parser.rs:182:5
[INFO] [stderr]     |
[INFO] [stderr] 182 | /     fn parse_prefix_expression(
[INFO] [stderr] 183 | |         &mut self,
[INFO] [stderr] 184 | |         token: Box<Token>,
[INFO] [stderr] 185 | |     ) -> Result<Box<Expression>, ParseError> {
[INFO] [stderr] ...   |
[INFO] [stderr] 212 | |         }
[INFO] [stderr] 213 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_infix_expression`
[INFO] [stderr]    --> src/parser.rs:215:5
[INFO] [stderr]     |
[INFO] [stderr] 215 | /     fn parse_infix_expression(
[INFO] [stderr] 216 | |         &mut self,
[INFO] [stderr] 217 | |         left_expression: Box<Expression>,
[INFO] [stderr] 218 | |         token: Box<Token>,
[INFO] [stderr] ...   |
[INFO] [stderr] 233 | |         ))))
[INFO] [stderr] 234 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_boolean`
[INFO] [stderr]    --> src/parser.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn parse_boolean(&mut self, token: Box<Token>) -> Expression {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `current_token_is`
[INFO] [stderr]    --> src/parser.rs:244:5
[INFO] [stderr]     |
[INFO] [stderr] 244 |     fn current_token_is(&self, token_type: TokenType) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek_token_is`
[INFO] [stderr]    --> src/parser.rs:250:5
[INFO] [stderr]     |
[INFO] [stderr] 250 |     fn peek_token_is(&mut self, token_type: TokenType) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `peek_error`
[INFO] [stderr]    --> src/parser.rs:256:5
[INFO] [stderr]     |
[INFO] [stderr] 256 |     fn peek_error(&mut self, token_type: TokenType) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Lowest`
[INFO] [stderr]  --> src/precedence.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Lowest,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Equals`
[INFO] [stderr]  --> src/precedence.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Equals,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LessGreater`
[INFO] [stderr]  --> src/precedence.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     LessGreater,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sum`
[INFO] [stderr]  --> src/precedence.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Sum,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Product`
[INFO] [stderr]   --> src/precedence.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Product,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Prefix`
[INFO] [stderr]   --> src/precedence.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Prefix,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/precedence.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Call,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `look_up_by`
[INFO] [stderr]   --> src/precedence.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub(crate) fn look_up_by(token_type: TokenType) -> Option<Precedence> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Boolean`
[INFO] [stderr]   --> src/error.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Boolean,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]    --> src/parser.rs:880:9
[INFO] [stderr]     |
[INFO] [stderr] 880 |         String(String),
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Call`
[INFO] [stderr]   --> src/precedence.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Call,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `"docker" "inspect" "4c3b97a11ca4066ed2313f237dfba46627284abbe3fcca483aa69dfaee509086"`
[INFO] running `"docker" "rm" "-f" "4c3b97a11ca4066ed2313f237dfba46627284abbe3fcca483aa69dfaee509086"`
[INFO] [stdout] 4c3b97a11ca4066ed2313f237dfba46627284abbe3fcca483aa69dfaee509086