[INFO] cloning repository https://github.com/luccasmmg/monkey-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luccasmmg/monkey-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluccasmmg%2Fmonkey-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluccasmmg%2Fmonkey-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08a0638d5a75400ac6ac32ba6d9b4445dec25026
[INFO] testing luccasmmg/monkey-rust against try#7af779037716ae4125ceabb429791b4cf5dd0a43 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluccasmmg%2Fmonkey-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luccasmmg/monkey-rust on toolchain 7af779037716ae4125ceabb429791b4cf5dd0a43
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/luccasmmg/monkey-rust
[INFO] finished tweaking git repo https://github.com/luccasmmg/monkey-rust
[INFO] tweaked toml for git repo https://github.com/luccasmmg/monkey-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/luccasmmg/monkey-rust 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" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58b57b1fd8a9e75c85d6fdbc0addf6446bf2e6ccb19b1913a4c3e19991778410
[INFO] running `Command { std: "docker" "start" "-a" "58b57b1fd8a9e75c85d6fdbc0addf6446bf2e6ccb19b1913a4c3e19991778410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58b57b1fd8a9e75c85d6fdbc0addf6446bf2e6ccb19b1913a4c3e19991778410", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58b57b1fd8a9e75c85d6fdbc0addf6446bf2e6ccb19b1913a4c3e19991778410", kill_on_drop: false }`
[INFO] [stdout] 58b57b1fd8a9e75c85d6fdbc0addf6446bf2e6ccb19b1913a4c3e19991778410
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6043aa88459242ff3560a40db5f2213846b1d01e7fc744f4020ea66689fa548
[INFO] running `Command { std: "docker" "start" "-a" "c6043aa88459242ff3560a40db5f2213846b1d01e7fc744f4020ea66689fa548", kill_on_drop: false }`
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stderr]    Compiling monkey-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Lexer`
[INFO] [stdout]  --> src/parser/parser.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::lexer::{Lexer, convert_to_tokens};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/ast/ast.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token::token::Token`
[INFO] [stdout]  --> src/ast/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::token::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Illegal` is never constructed
[INFO] [stdout]  --> src/token/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Token {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 3 |     Illegal,
[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: associated function `new` is never used
[INFO] [stdout]   --> src/parser/parser.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Parser {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(input: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/parser/parser.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum Precedence {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 48 |     Lowest,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 49 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 50 |     LessGreater,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 51 |     Sum,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 52 |     Product,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 53 |     Prefix,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 54 |     Call,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 55 |     Index,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/ast/ast.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Program {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/ast/ast.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Program {
[INFO] [stdout]   | ------------ associated function in this implementation
[INFO] [stdout] 9 |     pub fn new() -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BoolLiteral` and `StringLiteral` are never constructed
[INFO] [stdout]   --> src/ast/ast.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum Literal {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 26 |     IntLiteral(i64),
[INFO] [stdout] 27 |     BoolLiteral(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 28 |     StringLiteral(String),
[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: variants `PrefixPlus`, `PrefixMinus`, and `Not` are never constructed
[INFO] [stdout]   --> src/ast/ast.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub enum Prefix {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 39 |     PrefixPlus,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 40 |     PrefixMinus,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 41 |     Not,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Prefix` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "c6043aa88459242ff3560a40db5f2213846b1d01e7fc744f4020ea66689fa548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6043aa88459242ff3560a40db5f2213846b1d01e7fc744f4020ea66689fa548", kill_on_drop: false }`
[INFO] [stdout] c6043aa88459242ff3560a40db5f2213846b1d01e7fc744f4020ea66689fa548
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1cef300f19c3ae9ef23d82a9db8802c9a0e19283f93102715d814d1760630a8
[INFO] running `Command { std: "docker" "start" "-a" "f1cef300f19c3ae9ef23d82a9db8802c9a0e19283f93102715d814d1760630a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey-interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Lexer`
[INFO] [stdout]  --> src/parser/parser.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lexer::lexer::{Lexer, convert_to_tokens};
[INFO] [stdout]   |                           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/ast/ast.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::token::token::Token`
[INFO] [stdout]  --> src/ast/ast.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::token::token::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Illegal` is never constructed
[INFO] [stdout]  --> src/token/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Token {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 3 |     Illegal,
[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: multiple variants are never constructed
[INFO] [stdout]   --> src/parser/parser.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum Precedence {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] 48 |     Lowest,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 49 |     Equals,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 50 |     LessGreater,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 51 |     Sum,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 52 |     Product,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 53 |     Prefix,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 54 |     Call,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 55 |     Index,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/ast/ast.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Program {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/ast/ast.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Program {
[INFO] [stdout]   | ------------ associated function in this implementation
[INFO] [stdout] 9 |     pub fn new() -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `BoolLiteral` and `StringLiteral` are never constructed
[INFO] [stdout]   --> src/ast/ast.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum Literal {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 26 |     IntLiteral(i64),
[INFO] [stdout] 27 |     BoolLiteral(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 28 |     StringLiteral(String),
[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: variants `PrefixPlus`, `PrefixMinus`, and `Not` are never constructed
[INFO] [stdout]   --> src/ast/ast.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub enum Prefix {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 39 |     PrefixPlus,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 40 |     PrefixMinus,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 41 |     Not,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Prefix` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "f1cef300f19c3ae9ef23d82a9db8802c9a0e19283f93102715d814d1760630a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1cef300f19c3ae9ef23d82a9db8802c9a0e19283f93102715d814d1760630a8", kill_on_drop: false }`
[INFO] [stdout] f1cef300f19c3ae9ef23d82a9db8802c9a0e19283f93102715d814d1760630a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e20ffd6c0829ea0e494c58583ed69540edf1c2a733a93f6da9008a025e5d0d2
[INFO] running `Command { std: "docker" "start" "-a" "8e20ffd6c0829ea0e494c58583ed69540edf1c2a733a93f6da9008a025e5d0d2", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Lexer`
[INFO] [stderr]  --> src/parser/parser.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::lexer::lexer::{Lexer, convert_to_tokens};
[INFO] [stderr]   |                           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]  --> src/ast/ast.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::token::token::Token`
[INFO] [stderr]  --> src/ast/ast.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::token::token::Token;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Illegal` is never constructed
[INFO] [stderr]  --> src/token/token.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum Token {
[INFO] [stderr]   |          ----- variant in this enum
[INFO] [stderr] 3 |     Illegal,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/parser/parser.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub enum Precedence {
[INFO] [stderr]    |          ---------- variants in this enum
[INFO] [stderr] 48 |     Lowest,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 49 |     Equals,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 50 |     LessGreater,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 51 |     Sum,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 52 |     Product,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 53 |     Prefix,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 54 |     Call,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 55 |     Index,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Program` is never constructed
[INFO] [stderr]  --> src/ast/ast.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Program {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/ast/ast.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | impl Program {
[INFO] [stderr]   | ------------ associated function in this implementation
[INFO] [stderr] 9 |     pub fn new() -> Self {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `BoolLiteral` and `StringLiteral` are never constructed
[INFO] [stderr]   --> src/ast/ast.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub enum Literal {
[INFO] [stderr]    |          ------- variants in this enum
[INFO] [stderr] 26 |     IntLiteral(i64),
[INFO] [stderr] 27 |     BoolLiteral(bool),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 28 |     StringLiteral(String),
[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: variants `PrefixPlus`, `PrefixMinus`, and `Not` are never constructed
[INFO] [stderr]   --> src/ast/ast.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub enum Prefix {
[INFO] [stderr]    |          ------ variants in this enum
[INFO] [stderr] 39 |     PrefixPlus,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 40 |     PrefixMinus,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 41 |     Not,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Prefix` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey-interpreter` (bin "monkey-interpreter" test) generated 9 warnings (run `cargo fix --bin "monkey-interpreter" --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/monkey_interpreter-42aa366974820746)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test lexer::lexer::it_works_iterator ... ok
[INFO] [stdout] test parser::parser::test_exp_statement_ident ... ok
[INFO] [stdout] test lexer::lexer::it_works_with_tokens ... ok
[INFO] [stdout] test parser::parser::test_exp_statement_int ... ok
[INFO] [stdout] test parser::parser::test_return_and_let_statement ... ok
[INFO] [stdout] test parser::parser::test_return_statement ... ok
[INFO] [stdout] test parser::parser::test_let_statement ... ok
[INFO] [stdout] test lexer::lexer::it_works_with_more ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e20ffd6c0829ea0e494c58583ed69540edf1c2a733a93f6da9008a025e5d0d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e20ffd6c0829ea0e494c58583ed69540edf1c2a733a93f6da9008a025e5d0d2", kill_on_drop: false }`
[INFO] [stdout] 8e20ffd6c0829ea0e494c58583ed69540edf1c2a733a93f6da9008a025e5d0d2