[INFO] updating cached repository https://github.com/daogilvie/rust-monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] [stderr] From https://github.com/daogilvie/rust-monkey
[INFO] [stderr]    1851e5e..f78ea4a  master     -> master
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f78ea4a48095c29d1725862b5940fb1012ca63d1
[INFO] checking daogilvie/rust-monkey against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaogilvie%2Frust-monkey" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daogilvie/rust-monkey on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daogilvie/rust-monkey
[INFO] finished tweaking git repo https://github.com/daogilvie/rust-monkey
[INFO] tweaked toml for git repo https://github.com/daogilvie/rust-monkey written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/daogilvie/rust-monkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2820d9bff6a88554c770971183e7ac2d505361e7d842208fab9984f282bf79b3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2820d9bff6a88554c770971183e7ac2d505361e7d842208fab9984f282bf79b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2820d9bff6a88554c770971183e7ac2d505361e7d842208fab9984f282bf79b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2820d9bff6a88554c770971183e7ac2d505361e7d842208fab9984f282bf79b3", kill_on_drop: false }`
[INFO] [stdout] 2820d9bff6a88554c770971183e7ac2d505361e7d842208fab9984f282bf79b3
[INFO] running `Command { std: "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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37d13c53867f7bf917fd045b7f67d6e3380f5dd891b0398593a9d1eafc4d63c2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "37d13c53867f7bf917fd045b7f67d6e3380f5dd891b0398593a9d1eafc4d63c2", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust-monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `for_str`
[INFO] [stdout]    --> src/./lex.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn for_str(input: &str) -> Lexer {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BooleanLiteral`
[INFO] [stdout]   --> src/parse.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | /         BooleanLiteral {
[INFO] [stdout] 19 | |             value: bool,
[INFO] [stdout] 20 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/parse.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | /         Identifier {
[INFO] [stdout] 22 | |             name: String,
[INFO] [stdout] 23 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InfixExpression`
[INFO] [stdout]   --> src/parse.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | /         InfixExpression {
[INFO] [stdout] 25 | |             left: Box<ExpressionNode>,
[INFO] [stdout] 26 | |             operator: lex::Token,
[INFO] [stdout] 27 | |             right: Box<ExpressionNode>,
[INFO] [stdout] 28 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IntegerLiteral`
[INFO] [stdout]   --> src/parse.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | /         IntegerLiteral {
[INFO] [stdout] 30 | |             value: i64,
[INFO] [stdout] 31 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PrefixExpression`
[INFO] [stdout]   --> src/parse.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         PrefixExpression {
[INFO] [stdout] 33 | |             operator: lex::Token,
[INFO] [stdout] 34 | |             right: Box<ExpressionNode>,
[INFO] [stdout] 35 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IfConditional`
[INFO] [stdout]   --> src/parse.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | /         IfConditional {
[INFO] [stdout] 37 | |             condition: Box<ExpressionNode>,
[INFO] [stdout] 38 | |             consequence: Box<StatementNode>,
[INFO] [stdout] 39 | |             alternative: Option<Box<StatementNode>>,
[INFO] [stdout] 40 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FunctionLiteral`
[INFO] [stdout]   --> src/parse.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 | /         FunctionLiteral {
[INFO] [stdout] 42 | |             parameters: Vec<ExpressionNode>,
[INFO] [stdout] 43 | |             body: Box<StatementNode>,
[INFO] [stdout] 44 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CallExpression`
[INFO] [stdout]   --> src/parse.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | /         CallExpression {
[INFO] [stdout] 46 | |             function: Box<ExpressionNode>,
[INFO] [stdout] 47 | |             arguments: Vec<ExpressionNode>,
[INFO] [stdout] 48 | |         },
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stub`
[INFO] [stdout]   --> src/parse.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         Stub,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `make_stub`
[INFO] [stdout]   --> src/parse.rs:59:16
[INFO] [stdout]    |
[INFO] [stdout] 59 |         pub fn make_stub() -> ExpressionNode {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Let`
[INFO] [stdout]    --> src/parse.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 | /         Let {
[INFO] [stdout] 132 | |             name: ExpressionNode,
[INFO] [stdout] 133 | |             value: ExpressionNode,
[INFO] [stdout] 134 | |         },
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Return`
[INFO] [stdout]    --> src/parse.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 | /         Return {
[INFO] [stdout] 136 | |             value: ExpressionNode,
[INFO] [stdout] 137 | |         },
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Expression`
[INFO] [stdout]    --> src/parse.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 | /         Expression {
[INFO] [stdout] 139 | |             expression: ExpressionNode,
[INFO] [stdout] 140 | |         },
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BlockStatement`
[INFO] [stdout]    --> src/parse.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 | /         BlockStatement {
[INFO] [stdout] 142 | |             statements: Vec<StatementNode>,
[INFO] [stdout] 143 | |         },
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LOWEST`
[INFO] [stdout]    --> src/parse.rs:231:5
[INFO] [stdout]     |
[INFO] [stdout] 231 |     LOWEST,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EQUALS`
[INFO] [stdout]    --> src/parse.rs:232:5
[INFO] [stdout]     |
[INFO] [stdout] 232 |     EQUALS,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LESSGREATER`
[INFO] [stdout]    --> src/parse.rs:233:5
[INFO] [stdout]     |
[INFO] [stdout] 233 |     LESSGREATER,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SUM`
[INFO] [stdout]    --> src/parse.rs:234:5
[INFO] [stdout]     |
[INFO] [stdout] 234 |     SUM,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRODUCT`
[INFO] [stdout]    --> src/parse.rs:235:5
[INFO] [stdout]     |
[INFO] [stdout] 235 |     PRODUCT,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PREFIX`
[INFO] [stdout]    --> src/parse.rs:236:5
[INFO] [stdout]     |
[INFO] [stdout] 236 |     PREFIX,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CALL`
[INFO] [stdout]    --> src/parse.rs:237:5
[INFO] [stdout]     |
[INFO] [stdout] 237 |     CALL,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_operator_precedence`
[INFO] [stdout]    --> src/parse.rs:240:4
[INFO] [stdout]     |
[INFO] [stdout] 240 | fn get_operator_precedence(&token: &lex::TokenType) -> OperatorPrecedence {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]    --> src/parse.rs:255:8
[INFO] [stdout]     |
[INFO] [stdout] 255 | struct Parser<'a> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `for_lexer`
[INFO] [stdout]    --> src/parse.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 |     fn for_lexer(mut lexer: lex::Lexer) -> Parser {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `advance_tokens`
[INFO] [stdout]    --> src/parse.rs:275:12
[INFO] [stdout]     |
[INFO] [stdout] 275 |     pub fn advance_tokens(&mut self) -> lex::Token {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse`
[INFO] [stdout]    --> src/parse.rs:283:12
[INFO] [stdout]     |
[INFO] [stdout] 283 |     pub fn parse(&mut self) -> Result<Program, String> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_statement`
[INFO] [stdout]    --> src/parse.rs:307:8
[INFO] [stdout]     |
[INFO] [stdout] 307 |     fn parse_statement(&mut self) -> Result<StatementNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_next_token_of_type`
[INFO] [stdout]    --> src/parse.rs:315:8
[INFO] [stdout]     |
[INFO] [stdout] 315 |     fn is_next_token_of_type(&self, expected_type: lex::TokenType) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `advance_tokens_if_next_of_type`
[INFO] [stdout]    --> src/parse.rs:322:8
[INFO] [stdout]     |
[INFO] [stdout] 322 |     fn advance_tokens_if_next_of_type(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_next_token_precedence`
[INFO] [stdout]    --> src/parse.rs:343:8
[INFO] [stdout]     |
[INFO] [stdout] 343 |     fn get_next_token_precedence(&self) -> OperatorPrecedence {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_current_token_precedence`
[INFO] [stdout]    --> src/parse.rs:350:8
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn get_current_token_precedence(&self) -> OperatorPrecedence {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_current_token_of_type`
[INFO] [stdout]    --> src/parse.rs:354:8
[INFO] [stdout]     |
[INFO] [stdout] 354 |     fn is_current_token_of_type(&self, expected_type: lex::TokenType) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_let_statement`
[INFO] [stdout]    --> src/parse.rs:358:8
[INFO] [stdout]     |
[INFO] [stdout] 358 |     fn parse_let_statement(&mut self) -> Result<StatementNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_return_statement`
[INFO] [stdout]    --> src/parse.rs:381:8
[INFO] [stdout]     |
[INFO] [stdout] 381 |     fn parse_return_statement(&mut self) -> Result<StatementNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `attempt_parse_expression_statement`
[INFO] [stdout]    --> src/parse.rs:393:8
[INFO] [stdout]     |
[INFO] [stdout] 393 |     fn attempt_parse_expression_statement(&mut self) -> Result<StatementNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_expression`
[INFO] [stdout]    --> src/parse.rs:412:8
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn parse_expression(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `attempt_prefix_parse`
[INFO] [stdout]    --> src/parse.rs:442:8
[INFO] [stdout]     |
[INFO] [stdout] 442 |     fn attempt_prefix_parse(&mut self) -> Result<Option<ExpressionNode>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `can_parse_infix`
[INFO] [stdout]    --> src/parse.rs:458:8
[INFO] [stdout]     |
[INFO] [stdout] 458 |     fn can_parse_infix(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_identifier`
[INFO] [stdout]    --> src/parse.rs:476:8
[INFO] [stdout]     |
[INFO] [stdout] 476 |     fn parse_identifier(&mut self) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_integer_literal`
[INFO] [stdout]    --> src/parse.rs:485:8
[INFO] [stdout]     |
[INFO] [stdout] 485 |     fn parse_integer_literal(&mut self) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_boolean_literal`
[INFO] [stdout]    --> src/parse.rs:498:8
[INFO] [stdout]     |
[INFO] [stdout] 498 |     fn parse_boolean_literal(&mut self) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_grouped_expression`
[INFO] [stdout]    --> src/parse.rs:517:8
[INFO] [stdout]     |
[INFO] [stdout] 517 |     fn parse_grouped_expression(&mut self) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_if_expression`
[INFO] [stdout]    --> src/parse.rs:533:8
[INFO] [stdout]     |
[INFO] [stdout] 533 |     fn parse_if_expression(&mut self) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_prefix_expression`
[INFO] [stdout]    --> src/parse.rs:579:8
[INFO] [stdout]     |
[INFO] [stdout] 579 |     fn parse_prefix_expression(&mut self) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_infix_expression`
[INFO] [stdout]    --> src/parse.rs:592:8
[INFO] [stdout]     |
[INFO] [stdout] 592 |     fn parse_infix_expression(&mut self, lhs: ExpressionNode) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_block_statement`
[INFO] [stdout]    --> src/parse.rs:612:8
[INFO] [stdout]     |
[INFO] [stdout] 612 |     fn parse_block_statement(&mut self) -> Result<StatementNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_function_literal`
[INFO] [stdout]    --> src/parse.rs:628:8
[INFO] [stdout]     |
[INFO] [stdout] 628 |     fn parse_function_literal(&mut self) -> Result<ExpressionNode, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_function_parameters`
[INFO] [stdout]    --> src/parse.rs:643:8
[INFO] [stdout]     |
[INFO] [stdout] 643 |     fn parse_function_parameters(&mut self) -> Result<Vec<ExpressionNode>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_call_expression`
[INFO] [stdout]    --> src/parse.rs:660:8
[INFO] [stdout]     |
[INFO] [stdout] 660 |     fn parse_call_expression(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_call_arguments`
[INFO] [stdout]    --> src/parse.rs:675:8
[INFO] [stdout]     |
[INFO] [stdout] 675 |     fn parse_call_arguments(&mut self) -> Result<Vec<ExpressionNode>, String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 51 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Stub`
[INFO] [stdout]   --> src/parse.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         Stub,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `make_stub`
[INFO] [stdout]   --> src/parse.rs:59:16
[INFO] [stdout]    |
[INFO] [stdout] 59 |         pub fn make_stub() -> ExpressionNode {
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `Command { std: "docker" "inspect" "37d13c53867f7bf917fd045b7f67d6e3380f5dd891b0398593a9d1eafc4d63c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d13c53867f7bf917fd045b7f67d6e3380f5dd891b0398593a9d1eafc4d63c2", kill_on_drop: false }`
[INFO] [stdout] 37d13c53867f7bf917fd045b7f67d6e3380f5dd891b0398593a9d1eafc4d63c2