[INFO] cloning repository https://github.com/sairash/Danfe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sairash/Danfe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsairash%2FDanfe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsairash%2FDanfe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af91d093c07e13d1e821c0da33bf10364f7110f9
[INFO] testing sairash/Danfe against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsairash%2FDanfe" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sairash/Danfe
[INFO] finished tweaking git repo https://github.com/sairash/Danfe
[INFO] tweaked toml for git repo https://github.com/sairash/Danfe written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sairash/Danfe on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sairash/Danfe 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" "+beta-2025-09-21" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f157ceef6e0b2a7b3fd96c6ff5aea69612c3516b4fcd7ff5d1bb55066a4fcc9
[INFO] running `Command { std: "docker" "start" "-a" "6f157ceef6e0b2a7b3fd96c6ff5aea69612c3516b4fcd7ff5d1bb55066a4fcc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f157ceef6e0b2a7b3fd96c6ff5aea69612c3516b4fcd7ff5d1bb55066a4fcc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f157ceef6e0b2a7b3fd96c6ff5aea69612c3516b4fcd7ff5d1bb55066a4fcc9", kill_on_drop: false }`
[INFO] [stdout] 6f157ceef6e0b2a7b3fd96c6ff5aea69612c3516b4fcd7ff5d1bb55066a4fcc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07cb6dc828e37b2296901fce2a47741372cc59c2934ac41ea11ed08512db95e7
[INFO] running `Command { std: "docker" "start" "-a" "07cb6dc828e37b2296901fce2a47741372cc59c2934ac41ea11ed08512db95e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle v1.0.2
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling anstream v0.5.0
[INFO] [stderr]    Compiling clap_builder v4.4.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling clap v4.4.1
[INFO] [stderr]    Compiling danfe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `lexer::TokenType`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use lexer::TokenType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::clone`
[INFO] [stdout]  --> src/ast.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::clone;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/parser.rs:218:17
[INFO] [stdout]     |
[INFO] [stdout] 218 |                 (_)=>{
[INFO] [stdout]     |                 ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 218 -                 (_)=>{
[INFO] [stdout] 218 +                 _=>{
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/parser.rs:68:15
[INFO] [stdout]    |
[INFO] [stdout] 68 |         while let token = self.current_token.clone() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/parser.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 |         while let token = self.current_token.clone() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let mut lex  = lexer::Lexer::new(&text);
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `MissingExpectedSymbol` is never constructed
[INFO] [stdout]   --> src/lexer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub enum LexerError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     MissingExpectedSymbol { expected: TokenType, found: Token },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LexerError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_next_token` is never used
[INFO] [stdout]    --> src/lexer.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout]  80 | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 335 |     pub fn peek_next_token(&mut self) -> Result<TokenType, LexerError>{
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Symbol(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 35 -     Symbol(String),
[INFO] [stdout] 35 +     Symbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `String` and `Boolean` are never constructed
[INFO] [stdout]   --> src/ast.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Literal {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` 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: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Define(Expr),
[INFO] [stdout]    |     ------ ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 64 -     Define(Expr),
[INFO] [stdout] 64 +     Define(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/ast.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum Operator {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 41 |     UnaryPass,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 42 |     UnaryMinus,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 43 |     LogicalNegate,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 52 |
[INFO] [stdout] 53 |     LessThan,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 54 |     GreaterThan,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 55 |     LessThanOrEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 56 |     GreaterThantOrEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 57 |     Equal,
[INFO] [stdout] 58 |     NotEqual,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 59 |
[INFO] [stdout] 60 |     BooleanAnd,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 61 |     BooleanEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     Index,
[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: enum `ParserError` is never used
[INFO] [stdout]   --> src/parser.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum ParserError {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]   --> src/parser.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl <'a> Parser<'a> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn next(&mut self) -> Expr {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(mut lexer: Lexer<'a>) -> Parser {
[INFO] [stdout]    |                                 --      ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(mut lexer: Lexer<'a>) -> Parser<'a> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.77s
[INFO] running `Command { std: "docker" "inspect" "07cb6dc828e37b2296901fce2a47741372cc59c2934ac41ea11ed08512db95e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07cb6dc828e37b2296901fce2a47741372cc59c2934ac41ea11ed08512db95e7", kill_on_drop: false }`
[INFO] [stdout] 07cb6dc828e37b2296901fce2a47741372cc59c2934ac41ea11ed08512db95e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0718667ac57deef27a620b3d841d50c3ad8bcaa5251af52fbe0d06b8bef4e05
[INFO] running `Command { std: "docker" "start" "-a" "a0718667ac57deef27a620b3d841d50c3ad8bcaa5251af52fbe0d06b8bef4e05", kill_on_drop: false }`
[INFO] [stderr]    Compiling danfe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `lexer::TokenType`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use lexer::TokenType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::clone`
[INFO] [stdout]  --> src/ast.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::clone;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/parser.rs:218:17
[INFO] [stdout]     |
[INFO] [stdout] 218 |                 (_)=>{
[INFO] [stdout]     |                 ^ ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 218 -                 (_)=>{
[INFO] [stdout] 218 +                 _=>{
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/parser.rs:68:15
[INFO] [stdout]    |
[INFO] [stdout] 68 |         while let token = self.current_token.clone() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/parser.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 |         while let token = self.current_token.clone() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |             let mut lex  = lexer::Lexer::new(&text);
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `MissingExpectedSymbol` is never constructed
[INFO] [stdout]   --> src/lexer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub enum LexerError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     MissingExpectedSymbol { expected: TokenType, found: Token },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LexerError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_next_token` is never used
[INFO] [stdout]    --> src/lexer.rs:335:12
[INFO] [stdout]     |
[INFO] [stdout]  80 | impl<'a> Lexer<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 335 |     pub fn peek_next_token(&mut self) -> Result<TokenType, LexerError>{
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Symbol(String),
[INFO] [stdout]    |     ------ ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 35 -     Symbol(String),
[INFO] [stdout] 35 +     Symbol(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `String` and `Boolean` are never constructed
[INFO] [stdout]   --> src/ast.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub enum Literal {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 33 |     String(String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` 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: field `0` is never read
[INFO] [stdout]   --> src/ast.rs:64:12
[INFO] [stdout]    |
[INFO] [stdout] 64 |     Define(Expr),
[INFO] [stdout]    |     ------ ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 64 -     Define(Expr),
[INFO] [stdout] 64 +     Define(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/ast.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum Operator {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 41 |     UnaryPass,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 42 |     UnaryMinus,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 43 |     LogicalNegate,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 52 |
[INFO] [stdout] 53 |     LessThan,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 54 |     GreaterThan,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 55 |     LessThanOrEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 56 |     GreaterThantOrEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 57 |     Equal,
[INFO] [stdout] 58 |     NotEqual,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 59 |
[INFO] [stdout] 60 |     BooleanAnd,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 61 |     BooleanEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     Index,
[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: enum `ParserError` is never used
[INFO] [stdout]   --> src/parser.rs:12:10
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub enum ParserError {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]   --> src/parser.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl <'a> Parser<'a> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     fn next(&mut self) -> Expr {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/parser.rs:18:41
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(mut lexer: Lexer<'a>) -> Parser {
[INFO] [stdout]    |                                 --      ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(mut lexer: Lexer<'a>) -> Parser<'a> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "a0718667ac57deef27a620b3d841d50c3ad8bcaa5251af52fbe0d06b8bef4e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0718667ac57deef27a620b3d841d50c3ad8bcaa5251af52fbe0d06b8bef4e05", kill_on_drop: false }`
[INFO] [stdout] a0718667ac57deef27a620b3d841d50c3ad8bcaa5251af52fbe0d06b8bef4e05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d1b8440f8f8041b47cb1be2a690bbb69fc199cea575b07ebd174b9094a2ca90c
[INFO] running `Command { std: "docker" "start" "-a" "d1b8440f8f8041b47cb1be2a690bbb69fc199cea575b07ebd174b9094a2ca90c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `lexer::TokenType`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use lexer::TokenType;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::clone`
[INFO] [stderr]  --> src/ast.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::clone;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around pattern
[INFO] [stderr]    --> src/parser.rs:218:17
[INFO] [stderr]     |
[INFO] [stderr] 218 |                 (_)=>{
[INFO] [stderr]     |                 ^ ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 218 -                 (_)=>{
[INFO] [stderr] 218 +                 _=>{
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `while let` pattern
[INFO] [stderr]   --> src/parser.rs:68:15
[INFO] [stderr]    |
[INFO] [stderr] 68 |         while let token = self.current_token.clone() {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this pattern will always match, so the loop will never exit
[INFO] [stderr]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stderr]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: irrefutable `while let` pattern
[INFO] [stderr]   --> src/parser.rs:94:15
[INFO] [stderr]    |
[INFO] [stderr] 94 |         while let token = self.current_token.clone() {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this pattern will always match, so the loop will never exit
[INFO] [stderr]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |             let mut lex  = lexer::Lexer::new(&text);
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `MissingExpectedSymbol` is never constructed
[INFO] [stderr]   --> src/lexer.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  6 | pub enum LexerError {
[INFO] [stderr]    |          ---------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 11 |     MissingExpectedSymbol { expected: TokenType, found: Token },
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `LexerError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `peek_next_token` is never used
[INFO] [stderr]    --> src/lexer.rs:335:12
[INFO] [stderr]     |
[INFO] [stderr]  80 | impl<'a> Lexer<'a> {
[INFO] [stderr]     | ------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 335 |     pub fn peek_next_token(&mut self) -> Result<TokenType, LexerError>{
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/ast.rs:35:12
[INFO] [stderr]    |
[INFO] [stderr] 35 |     Symbol(String),
[INFO] [stderr]    |     ------ ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 35 -     Symbol(String),
[INFO] [stderr] 35 +     Symbol(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variants `String` and `Boolean` are never constructed
[INFO] [stderr]   --> src/ast.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub enum Literal {
[INFO] [stderr]    |          ------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 33 |     String(String),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 34 |     Boolean(bool),
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/ast.rs:64:12
[INFO] [stderr]    |
[INFO] [stderr] 64 |     Define(Expr),
[INFO] [stderr]    |     ------ ^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 64 -     Define(Expr),
[INFO] [stderr] 64 +     Define(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/ast.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub enum Operator {
[INFO] [stderr]    |          -------- variants in this enum
[INFO] [stderr] 41 |     UnaryPass,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 42 |     UnaryMinus,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 43 |     LogicalNegate,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 51 |     Minus,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 52 |
[INFO] [stderr] 53 |     LessThan,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 54 |     GreaterThan,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 55 |     LessThanOrEqual,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 56 |     GreaterThantOrEqual,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 57 |     Equal,
[INFO] [stderr] 58 |     NotEqual,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 59 |
[INFO] [stderr] 60 |     BooleanAnd,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 61 |     BooleanEqual,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 65 |     Index,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Operator` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: enum `ParserError` is never used
[INFO] [stderr]   --> src/parser.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum ParserError {
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `next` is never used
[INFO] [stderr]   --> src/parser.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl <'a> Parser<'a> {
[INFO] [stderr]    | -------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 47 |     fn next(&mut self) -> Expr {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/parser.rs:18:41
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(mut lexer: Lexer<'a>) -> Parser {
[INFO] [stderr]    |                                 --      ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                 |
[INFO] [stderr]    |                                 the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new(mut lexer: Lexer<'a>) -> Parser<'a> {
[INFO] [stderr]    |                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `danfe` (bin "danfe" test) generated 15 warnings (run `cargo fix --bin "danfe" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/danfe-7f85b7a93a48e1d8)
[INFO] running `Command { std: "docker" "inspect" "d1b8440f8f8041b47cb1be2a690bbb69fc199cea575b07ebd174b9094a2ca90c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b8440f8f8041b47cb1be2a690bbb69fc199cea575b07ebd174b9094a2ca90c", kill_on_drop: false }`
[INFO] [stdout] d1b8440f8f8041b47cb1be2a690bbb69fc199cea575b07ebd174b9094a2ca90c
