[INFO] cloning repository https://github.com/CluEleSsUK/rust-toy-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CluEleSsUK/rust-toy-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCluEleSsUK%2Frust-toy-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCluEleSsUK%2Frust-toy-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb2300224b2be92e37850ccdb6660e7080920193
[INFO] checking CluEleSsUK/rust-toy-compiler against master#b359ccf1b0b7b2d2c1c4932344b806e68bd053a9 for pr-105483
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCluEleSsUK%2Frust-toy-compiler" "/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/CluEleSsUK/rust-toy-compiler on toolchain b359ccf1b0b7b2d2c1c4932344b806e68bd053a9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CluEleSsUK/rust-toy-compiler
[INFO] finished tweaking git repo https://github.com/CluEleSsUK/rust-toy-compiler
[INFO] tweaked toml for git repo https://github.com/CluEleSsUK/rust-toy-compiler written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/CluEleSsUK/rust-toy-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: unstable
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded speculoos v0.8.0
[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" "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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f13c42a86332163f88f6553a7b6c53569fbe133c92a639b2d6cb2eea7d3659e0
[INFO] running `Command { std: "docker" "start" "-a" "f13c42a86332163f88f6553a7b6c53569fbe133c92a639b2d6cb2eea7d3659e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f13c42a86332163f88f6553a7b6c53569fbe133c92a639b2d6cb2eea7d3659e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13c42a86332163f88f6553a7b6c53569fbe133c92a639b2d6cb2eea7d3659e0", kill_on_drop: false }`
[INFO] [stdout] f13c42a86332163f88f6553a7b6c53569fbe133c92a639b2d6cb2eea7d3659e0
[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" "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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+b359ccf1b0b7b2d2c1c4932344b806e68bd053a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a11e35f5b8bb58d99e065d9839a132097b04eb679c837da535377f8a3d934eac
[INFO] running `Command { std: "docker" "start" "-a" "a11e35f5b8bb58d99e065d9839a132097b04eb679c837da535377f8a3d934eac", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: unstable
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking speculoos v0.8.0
[INFO] [stderr]     Checking toy-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::lexer::Token`
[INFO] [stdout]   --> src/parser.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     use crate::lexer::Token;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expression`, `ValueType`, `parse`
[INFO] [stdout]   --> src/parser.rs:74:25
[INFO] [stdout]    |
[INFO] [stdout] 74 |     use crate::parser::{Expression, parse, ValueType};
[INFO] [stdout]    |                         ^^^^^^^^^^  ^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `speculoos::prelude::*`
[INFO] [stdout]   --> src/parser.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     use speculoos::prelude::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/lexer.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub(crate) enum Token {
[INFO] [stdout]    |                 ----- variants in this enum
[INFO] [stdout] 7  |     Let,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 8  |     Function,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 9  |     Identifier(String),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 10 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     Number(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     Whitespace,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     NewLine,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 14 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 16 |     SemiColon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 17 |     EOF,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `UnexpectedCharacter`, `InvalidChar`, and `UnexpectedEndOfInput` are never constructed
[INFO] [stdout]   --> src/lexer.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | enum LexingError {
[INFO] [stdout]    |      ----------- variants in this enum
[INFO] [stdout] 23 |     UnexpectedCharacter { expected: char, actual: char },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 24 |     InvalidChar(char),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 25 |     UnexpectedEndOfInput,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LexingError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lex` is never used
[INFO] [stdout]   --> src/lexer.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn lex(input: &str) -> Result<Vec<Token>, LexingError> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `LexingResult` is never used
[INFO] [stdout]   --> src/lexer.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 | type LexingResult = Result<Token, LexingError>;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_next_token` is never used
[INFO] [stdout]   --> src/lexer.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn parse_next_token(input: &mut Peekable<Chars>) -> LexingResult {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_string` is never used
[INFO] [stdout]   --> src/lexer.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn parse_string(input: &mut Peekable<Chars>) -> LexingResult {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `consume` is never used
[INFO] [stdout]   --> src/lexer.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn consume(input: &mut Peekable<Chars>, token: Token) -> Result<Token, LexingError> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_number` is never used
[INFO] [stdout]   --> src/lexer.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn parse_number(input: &mut Peekable<Chars>) -> Result<Token, LexingError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_identifier_or_keyword` is never used
[INFO] [stdout]   --> src/lexer.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn parse_identifier_or_keyword(input: &mut Peekable<Chars>) -> Result<Token, LexingError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expect_next` is never used
[INFO] [stdout]    --> src/lexer.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn expect_next(input: &mut Peekable<Chars>, expected_char: char) -> Result<(), LexingError> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_word_or_rewind` is never used
[INFO] [stdout]    --> src/lexer.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn test_word_or_rewind<'a>(input: &mut Peekable<Chars>, word: &'a str) -> Option<&'a str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_while` is never used
[INFO] [stdout]    --> src/lexer.rs:133:4
[INFO] [stdout]     |
[INFO] [stdout] 133 | fn take_while(input: &mut Peekable<Chars>, predicate: impl Fn(char) -> bool) -> Vec<char> {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify` is never used
[INFO] [stdout]    --> src/lexer.rs:143:4
[INFO] [stdout]     |
[INFO] [stdout] 143 | fn stringify(chars: Vec<char>) -> String {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Integer`, `Float`, and `String` are never constructed
[INFO] [stdout]  --> src/parser.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum ValueType {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 5 |     Integer(i32),
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 6 |     Float(f32),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     String(String),
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ValueType` 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: variants `Plus` and `Minus` are never constructed
[INFO] [stdout]   --> src/parser.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Operator {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 12 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operator` 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: variants `Value`, `Infix`, and `Assignment` are never constructed
[INFO] [stdout]   --> src/parser.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Expression {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 18 |     Value { value: ValueType },
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 19 |     Infix { left: Box<Expression>, operator: Operator, right: Box<Expression> },
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Assignment { identifier: String, value: Box<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` 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: variants `NumberValueInvalid` and `UnknownError` are never constructed
[INFO] [stdout]   --> src/parser.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum ParsingError {
[INFO] [stdout]    |      ------------ variants in this enum
[INFO] [stdout] 25 |     NumberValueInvalid,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 26 |     UnknownError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParsingError` 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: type alias `ParsingResult` is never used
[INFO] [stdout]   --> src/parser.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | type ParsingResult = Result<Vec<Expression>, ParsingError>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CurrentToken` is never used
[INFO] [stdout]   --> src/parser.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type CurrentToken = usize;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IntermediateParsingResult` is never used
[INFO] [stdout]   --> src/parser.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | type IntermediateParsingResult<'a> = Result<(CurrentToken, &'a mut Vec<Expression>), ParsingError>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse` is never used
[INFO] [stdout]   --> src/parser.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn parse(tokens: &mut Vec<Token>) -> ParsingResult {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_recursive` is never used
[INFO] [stdout]   --> src/parser.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn parse_recursive(tokens: &Vec<Token>, current: usize, mut output: Vec<Expression>) -> ParsingResult {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_next_expr` is never used
[INFO] [stdout]   --> src/parser.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn parse_next_expr<'a>(input: &Vec<Token>, current: usize, output: &'a mut Vec<Expression>) -> IntermediateParsingResult<'a> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_number_expr` is never used
[INFO] [stdout]   --> src/parser.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn parse_number_expr<'a>(value: &str, current: usize, output: &'a mut Vec<Expression>) -> IntermediateParsingResult<'a> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_word_or_rewind` is never used
[INFO] [stdout]    --> src/lexer.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn test_word_or_rewind<'a>(input: &mut Peekable<Chars>, word: &'a str) -> Option<&'a str> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Float` and `String` are never constructed
[INFO] [stdout]  --> src/parser.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum ValueType {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 5 |     Integer(i32),
[INFO] [stdout] 6 |     Float(f32),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     String(String),
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ValueType` 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: variants `Plus` and `Minus` are never constructed
[INFO] [stdout]   --> src/parser.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Operator {
[INFO] [stdout]    |      -------- variants in this enum
[INFO] [stdout] 12 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Operator` 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: variants `Infix` and `Assignment` are never constructed
[INFO] [stdout]   --> src/parser.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | enum Expression {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 18 |     Value { value: ValueType },
[INFO] [stdout] 19 |     Infix { left: Box<Expression>, operator: Operator, right: Box<Expression> },
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     Assignment { identifier: String, value: Box<Expression> },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expression` 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "a11e35f5b8bb58d99e065d9839a132097b04eb679c837da535377f8a3d934eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11e35f5b8bb58d99e065d9839a132097b04eb679c837da535377f8a3d934eac", kill_on_drop: false }`
[INFO] [stdout] a11e35f5b8bb58d99e065d9839a132097b04eb679c837da535377f8a3d934eac