[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] 5b9479a42489103b259626b69e5c6c3a9d032e1f
[INFO] checking luccasmmg/monkey-rust against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluccasmmg%2Fmonkey-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luccasmmg/monkey-rust on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/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: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b1e6afac6daf0f2a60cbdc353ebfd2b97c65bbb88771d8a6d4613b053afb41a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9b1e6afac6daf0f2a60cbdc353ebfd2b97c65bbb88771d8a6d4613b053afb41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b1e6afac6daf0f2a60cbdc353ebfd2b97c65bbb88771d8a6d4613b053afb41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1e6afac6daf0f2a60cbdc353ebfd2b97c65bbb88771d8a6d4613b053afb41a", kill_on_drop: false }`
[INFO] [stdout] 9b1e6afac6daf0f2a60cbdc353ebfd2b97c65bbb88771d8a6d4613b053afb41a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a56f87f1b36f16557356fbc811f79544e620abd5d446ece66cdcf7ca12af3f65
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a56f87f1b36f16557356fbc811f79544e620abd5d446ece66cdcf7ca12af3f65", kill_on_drop: false }`
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking 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: 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: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/parser/parser.rs:69:45
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let test = vec![Statement::LetStatement((Identifier(String::from("five"))), Expression::LiteralExp(Literal::IntLiteral(5))),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` 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 is never constructed: `Illegal`
[INFO] [stdout]  --> src/token/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Illegal,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/parser/parser.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn new(input: &str) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Program`
[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 is never used: `new`
[INFO] [stdout]  --> src/ast/ast.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new() -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BoolLiteral`
[INFO] [stdout]   --> src/ast/ast.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     BoolLiteral(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringLiteral`
[INFO] [stdout]   --> src/ast/ast.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     StringLiteral(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IdentExpression`
[INFO] [stdout]   --> src/ast/ast.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     IdentExpression(Identifier),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Illegal`
[INFO] [stdout]  --> src/token/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Illegal,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Program`
[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 is never used: `new`
[INFO] [stdout]  --> src/ast/ast.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new() -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BoolLiteral`
[INFO] [stdout]   --> src/ast/ast.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     BoolLiteral(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringLiteral`
[INFO] [stdout]   --> src/ast/ast.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     StringLiteral(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IdentExpression`
[INFO] [stdout]   --> src/ast/ast.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     IdentExpression(Identifier),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "a56f87f1b36f16557356fbc811f79544e620abd5d446ece66cdcf7ca12af3f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a56f87f1b36f16557356fbc811f79544e620abd5d446ece66cdcf7ca12af3f65", kill_on_drop: false }`
[INFO] [stdout] a56f87f1b36f16557356fbc811f79544e620abd5d446ece66cdcf7ca12af3f65