[INFO] cloning repository https://github.com/Kumac13/monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kumac13/monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKumac13%2Fmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKumac13%2Fmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04b6b10af8467f12efc8a7c071d953400ce8c7fd
[INFO] testing Kumac13/monkey against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKumac13%2Fmonkey" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kumac13/monkey
[INFO] finished tweaking git repo https://github.com/Kumac13/monkey
[INFO] tweaked toml for git repo https://github.com/Kumac13/monkey written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kumac13/monkey on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kumac13/monkey already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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_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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8367e89a90e72f4a5b72758ec20c53ca61c4c5c1defc5a0c337bb6e764b7158a
[INFO] running `Command { std: "docker" "start" "-a" "8367e89a90e72f4a5b72758ec20c53ca61c4c5c1defc5a0c337bb6e764b7158a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8367e89a90e72f4a5b72758ec20c53ca61c4c5c1defc5a0c337bb6e764b7158a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8367e89a90e72f4a5b72758ec20c53ca61c4c5c1defc5a0c337bb6e764b7158a", kill_on_drop: false }`
[INFO] [stdout] 8367e89a90e72f4a5b72758ec20c53ca61c4c5c1defc5a0c337bb6e764b7158a
[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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db63097e0a2ca308bceed221af38456ce39d86d21f1af9788810e696e51296f3
[INFO] running `Command { std: "docker" "start" "-a" "db63097e0a2ca308bceed221af38456ce39d86d21f1af9788810e696e51296f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/ast.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn token_literal(&self) -> String {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 281 |         self.token_literal().clone()
[INFO] [stdout]     |         -------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Node` is never used
[INFO] [stdout]  --> src/ast.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Node {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Statement` is never used
[INFO] [stdout]  --> src/ast.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait Statement: Node + Debug {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Expression` is never used
[INFO] [stdout]   --> src/ast.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Expression: Node + Debug {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]   --> src/ast.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Program {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LetStatement` is never constructed
[INFO] [stdout]   --> src/ast.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct LetStatement {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReturnStatement` is never constructed
[INFO] [stdout]   --> src/ast.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct ReturnStatement {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExpressionStatement` is never constructed
[INFO] [stdout]   --> src/ast.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct ExpressionStatement {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockStatement` is never constructed
[INFO] [stdout]    --> src/ast.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct BlockStatement {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Identifier` is never constructed
[INFO] [stdout]    --> src/ast.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub struct Identifier {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IntegerLiteral` is never constructed
[INFO] [stdout]    --> src/ast.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct IntegerLiteral {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FunctionLiteral` is never constructed
[INFO] [stdout]    --> src/ast.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub struct FunctionLiteral {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Boolean` is never constructed
[INFO] [stdout]    --> src/ast.rs:192:12
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub struct Boolean {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrefixExpression` is never constructed
[INFO] [stdout]    --> src/ast.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 | pub struct PrefixExpression {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InfixExpression` is never constructed
[INFO] [stdout]    --> src/ast.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 238 | pub struct InfixExpression {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IfExpression` is never constructed
[INFO] [stdout]    --> src/ast.rs:268:12
[INFO] [stdout]     |
[INFO] [stdout] 268 | pub struct IfExpression {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParseError` is never used
[INFO] [stdout]  --> src/parser.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum ParseError {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/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.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 |     fn next(&mut self) -> Option<Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  39 |     fn peek(&mut self) -> Option<&Token> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  43 |     pub fn parse(&mut self) -> Program {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  47 |     fn parse_program(&mut self) -> Program {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  60 |     fn parse_statement(&mut self) -> Option<Box<dyn Statement>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  72 |     fn parse_let_statement(&mut self) -> Option<Box<dyn Statement>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn parse_return_statement(&mut self) -> Option<Box<dyn Statement>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     fn parse_expression_statement(&mut self) -> Option<Box<dyn Statement>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn parse_block_statement(&mut self) -> Option<BlockStatement> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 161 |     fn parse_expression(&mut self, precedence: Precedence) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 196 |     fn parse_prefix_expression(&mut self) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |     fn parse_infix_expression(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 229 |     fn parse_grouped_expression(&mut self) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 241 |     fn parse_if_expression(&mut self) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 281 |     fn parse_identifier(&mut self) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 288 |     fn parse_integer_literal(&mut self) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 295 |     fn parse_function_literal(&mut self) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 317 |     fn parse_function_parameters(&mut self) -> Vec<Identifier> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 353 |     fn parse_boolean(&mut self) -> Option<Box<dyn Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 360 |     fn peek_token_is(&mut self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 364 |     fn current_token_is(&mut self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 368 |     fn expect_peek(&mut self, kind: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 382 |     fn peek_precedence(&mut self) -> Precedence {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 389 |     fn current_precedence(&mut self) -> Precedence {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `EOF` is never constructed
[INFO] [stdout]  --> src/token.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum TokenKind {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 5 |     ILLEGAL,
[INFO] [stdout] 6 |     EOF,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TokenKind` 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: method `precedence` is never used
[INFO] [stdout]   --> src/token.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | impl Token {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn precedence(&self) -> Precedence {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Precedence` is never used
[INFO] [stdout]    --> src/token.rs:102:10
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub enum Precedence {
[INFO] [stdout]     |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "db63097e0a2ca308bceed221af38456ce39d86d21f1af9788810e696e51296f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db63097e0a2ca308bceed221af38456ce39d86d21f1af9788810e696e51296f3", kill_on_drop: false }`
[INFO] [stdout] db63097e0a2ca308bceed221af38456ce39d86d21f1af9788810e696e51296f3
[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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a92ef9e07b1bdcdf4fe01ce01c278c1e24070944abf74056b768f29c961759d
[INFO] running `Command { std: "docker" "start" "-a" "7a92ef9e07b1bdcdf4fe01ce01c278c1e24070944abf74056b768f29c961759d", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stdout]   --> src/token.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     NOT_EQ,
[INFO] [stdout]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/ast.rs:280:5
[INFO] [stdout]     |
[INFO] [stdout] 280 |     fn token_literal(&self) -> String {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 281 |         self.token_literal().clone()
[INFO] [stdout]     |         -------------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `statement_node` is never used
[INFO] [stdout]   --> src/ast.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub trait Statement: Node + Debug {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 10 |     fn statement_node(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `expression_node` is never used
[INFO] [stdout]   --> src/ast.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub trait Expression: Node + Debug {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 14 |     fn expression_node(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/ast.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub struct IntegerLiteral {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 145 |     pub token: Token,
[INFO] [stdout] 146 |     pub value: i64,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IntegerLiteral` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]    --> src/ast.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 192 | pub struct Boolean {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] 193 |     pub token: Token,
[INFO] [stdout] 194 |     pub value: bool,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Boolean` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:269:9
[INFO] [stdout]     |
[INFO] [stdout] 268 | pub struct IfExpression {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 269 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ParseError` is never used
[INFO] [stdout]  --> src/parser.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub enum ParseError {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Call` is never constructed
[INFO] [stdout]    --> src/token.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub enum Precedence {
[INFO] [stdout]     |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 109 |     Call = 7,        // my_function(x){}
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Precedence` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "7a92ef9e07b1bdcdf4fe01ce01c278c1e24070944abf74056b768f29c961759d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a92ef9e07b1bdcdf4fe01ce01c278c1e24070944abf74056b768f29c961759d", kill_on_drop: false }`
[INFO] [stdout] 7a92ef9e07b1bdcdf4fe01ce01c278c1e24070944abf74056b768f29c961759d
[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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 45c5524b71b3021d3e75339f8c216ca40820cedc4630395a9f1e75389195a9e4
[INFO] running `Command { std: "docker" "start" "-a" "45c5524b71b3021d3e75339f8c216ca40820cedc4630395a9f1e75389195a9e4", kill_on_drop: false }`
[INFO] [stderr] warning: variant `NOT_EQ` should have an upper camel case name
[INFO] [stderr]   --> src/token.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     NOT_EQ,
[INFO] [stderr]    |     ^^^^^^ help: convert the identifier to upper camel case: `NotEq`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/ast.rs:280:5
[INFO] [stderr]     |
[INFO] [stderr] 280 |     fn token_literal(&self) -> String {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 281 |         self.token_literal().clone()
[INFO] [stderr]     |         -------------------- recursive call site
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `statement_node` is never used
[INFO] [stderr]   --> src/ast.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub trait Statement: Node + Debug {
[INFO] [stderr]    |           --------- method in this trait
[INFO] [stderr] 10 |     fn statement_node(&self);
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `expression_node` is never used
[INFO] [stderr]   --> src/ast.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub trait Expression: Node + Debug {
[INFO] [stderr]    |           ---------- method in this trait
[INFO] [stderr] 14 |     fn expression_node(&self);
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]    --> src/ast.rs:146:9
[INFO] [stderr]     |
[INFO] [stderr] 144 | pub struct IntegerLiteral {
[INFO] [stderr]     |            -------------- field in this struct
[INFO] [stderr] 145 |     pub token: Token,
[INFO] [stderr] 146 |     pub value: i64,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `IntegerLiteral` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]    --> src/ast.rs:194:9
[INFO] [stderr]     |
[INFO] [stderr] 192 | pub struct Boolean {
[INFO] [stderr]     |            ------- field in this struct
[INFO] [stderr] 193 |     pub token: Token,
[INFO] [stderr] 194 |     pub value: bool,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Boolean` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `token` is never read
[INFO] [stderr]    --> src/ast.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 268 | pub struct IfExpression {
[INFO] [stderr]     |            ------------ field in this struct
[INFO] [stderr] 269 |     pub token: Token,
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `IfExpression` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ParseError` is never used
[INFO] [stderr]  --> src/parser.rs:8:10
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum ParseError {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Call` is never constructed
[INFO] [stderr]    --> src/token.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub enum Precedence {
[INFO] [stderr]     |          ---------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 109 |     Call = 7,        // my_function(x){}
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Precedence` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey` (bin "monkey" test) generated 9 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/monkey-9f6ae58d337b3407)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test lexer::tests::test_tokenize ... ok
[INFO] [stdout] test parser::tests::test_integer_literal_expression ... ok
[INFO] [stdout] test parser::tests::test_expression_statement ... ok
[INFO] [stdout] test parser::tests::test_infix_expression ... ok
[INFO] [stdout] test parser::tests::test_if_else_expression ... ok
[INFO] [stdout] test parser::tests::test_prefix_expression ... ok
[INFO] [stdout] test parser::tests::test_return_statement ... ok
[INFO] [stdout] test parser::tests::test_function_literal ... ok
[INFO] [stdout] test parser::tests::test_parser ... ok
[INFO] [stdout] test parser::tests::test_if_expression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45c5524b71b3021d3e75339f8c216ca40820cedc4630395a9f1e75389195a9e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c5524b71b3021d3e75339f8c216ca40820cedc4630395a9f1e75389195a9e4", kill_on_drop: false }`
[INFO] [stdout] 45c5524b71b3021d3e75339f8c216ca40820cedc4630395a9f1e75389195a9e4