[INFO] cloning repository https://github.com/Demiguise/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Demiguise/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDemiguise%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDemiguise%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c236b0a552dfe4fbc9434346f4226cc593bcfc96
[INFO] checking Demiguise/rlox against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDemiguise%2Frlox" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Demiguise/rlox
[INFO] finished tweaking git repo https://github.com/Demiguise/rlox
[INFO] tweaked toml for git repo https://github.com/Demiguise/rlox written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Demiguise/rlox on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Demiguise/rlox 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.68
[INFO] [stderr]   Downloaded text_io v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02afe92065fc6a49f1cbf44a39d449090551fdc6d05ee24ddf71e72bcb85f0a1
[INFO] running `Command { std: "docker" "start" "-a" "02afe92065fc6a49f1cbf44a39d449090551fdc6d05ee24ddf71e72bcb85f0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02afe92065fc6a49f1cbf44a39d449090551fdc6d05ee24ddf71e72bcb85f0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02afe92065fc6a49f1cbf44a39d449090551fdc6d05ee24ddf71e72bcb85f0a1", kill_on_drop: false }`
[INFO] [stdout] 02afe92065fc6a49f1cbf44a39d449090551fdc6d05ee24ddf71e72bcb85f0a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 759907291bb5f5c02f895bc0a5647fc0ad4105d366f2639bfd7225b0d2dc77ee
[INFO] running `Command { std: "docker" "start" "-a" "759907291bb5f5c02f895bc0a5647fc0ad4105d366f2639bfd7225b0d2dc77ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking text_io v0.1.12
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast::nodes::Literal`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ast::nodes::Literal;
[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 variable: `operator`
[INFO] [stdout]    --> src/ast.rs:144:36
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn visit_unary_operator(&self, operator: &nodes::UnaryOperator) -> String {
[INFO] [stdout]     |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]    --> src/ast.rs:147:37
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn visit_binary_operator(&self, operator: &nodes::BinaryOperator) -> String {
[INFO] [stdout]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]    --> src/ast.rs:150:29
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn visit_literal(&self, literal: &nodes::Literal) -> String {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::nodes::Literal`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ast::nodes::Literal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `visit_unary_operator` and `visit_binary_operator` are never used
[INFO] [stdout]   --> src/ast.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub trait ExprVisitor {
[INFO] [stdout]    |           ----------- methods in this trait
[INFO] [stdout] 70 |     fn visit_expr(&self, expr: &nodes::Expr) -> String;
[INFO] [stdout] 71 |     fn visit_unary_operator(&self, operator: &nodes::UnaryOperator) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 72 |     fn visit_binary_operator(&self, operator: &nodes::BinaryOperator) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UnaryOperator` is never used
[INFO] [stdout]   --> src/ast.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub enum UnaryOperator {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BinaryOperator` is never used
[INFO] [stdout]   --> src/ast.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub enum BinaryOperator {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Number`, `True`, `False`, and `Nil` are never constructed
[INFO] [stdout]   --> src/ast.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub enum Literal {
[INFO] [stdout]    |              ------- variants in this enum
[INFO] [stdout] 61 |         String(String),
[INFO] [stdout] 62 |         Number(f64),
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 63 |         True,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 64 |         False,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 65 |         Nil,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `token_type` and `line` are never read
[INFO] [stdout]   --> src/tokens.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 55 |     pub token_type: TokenType,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 56 |     pub lexeme: String,
[INFO] [stdout] 57 |     pub line: usize,
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]    --> src/ast.rs:144:36
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn visit_unary_operator(&self, operator: &nodes::UnaryOperator) -> String {
[INFO] [stdout]     |                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]    --> src/ast.rs:147:37
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn visit_binary_operator(&self, operator: &nodes::BinaryOperator) -> String {
[INFO] [stdout]     |                                     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]    --> src/ast.rs:150:29
[INFO] [stdout]     |
[INFO] [stdout] 150 |     fn visit_literal(&self, literal: &nodes::Literal) -> String {
[INFO] [stdout]     |                             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `visit_unary_operator` and `visit_binary_operator` are never used
[INFO] [stdout]   --> src/ast.rs:71:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub trait ExprVisitor {
[INFO] [stdout]    |           ----------- methods in this trait
[INFO] [stdout] 70 |     fn visit_expr(&self, expr: &nodes::Expr) -> String;
[INFO] [stdout] 71 |     fn visit_unary_operator(&self, operator: &nodes::UnaryOperator) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 72 |     fn visit_binary_operator(&self, operator: &nodes::BinaryOperator) -> String;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UnaryOperator` is never used
[INFO] [stdout]   --> src/ast.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub enum UnaryOperator {
[INFO] [stdout]    |              ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BinaryOperator` is never used
[INFO] [stdout]   --> src/ast.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub enum BinaryOperator {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Number`, `True`, `False`, and `Nil` are never constructed
[INFO] [stdout]   --> src/ast.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub enum Literal {
[INFO] [stdout]    |              ------- variants in this enum
[INFO] [stdout] 61 |         String(String),
[INFO] [stdout] 62 |         Number(f64),
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 63 |         True,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 64 |         False,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 65 |         Nil,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `token_type` and `line` are never read
[INFO] [stdout]   --> src/tokens.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 55 |     pub token_type: TokenType,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 56 |     pub lexeme: String,
[INFO] [stdout] 57 |     pub line: usize,
[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] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "759907291bb5f5c02f895bc0a5647fc0ad4105d366f2639bfd7225b0d2dc77ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "759907291bb5f5c02f895bc0a5647fc0ad4105d366f2639bfd7225b0d2dc77ee", kill_on_drop: false }`
[INFO] [stdout] 759907291bb5f5c02f895bc0a5647fc0ad4105d366f2639bfd7225b0d2dc77ee