[INFO] cloning repository https://github.com/loziuu/rio-jlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/loziuu/rio-jlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floziuu%2Frio-jlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floziuu%2Frio-jlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a0833c505459078fe237e8c33e4632dd27ba42e
[INFO] testing loziuu/rio-jlox against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floziuu%2Frio-jlox" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/loziuu/rio-jlox
[INFO] finished tweaking git repo https://github.com/loziuu/rio-jlox
[INFO] tweaked toml for git repo https://github.com/loziuu/rio-jlox written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/loziuu/rio-jlox on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/loziuu/rio-jlox 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5dbe3c414930d8d062b2e3de6929c7b5de77c3776986013893f8fcbaf695e054
[INFO] running `Command { std: "docker" "start" "-a" "5dbe3c414930d8d062b2e3de6929c7b5de77c3776986013893f8fcbaf695e054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5dbe3c414930d8d062b2e3de6929c7b5de77c3776986013893f8fcbaf695e054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dbe3c414930d8d062b2e3de6929c7b5de77c3776986013893f8fcbaf695e054", kill_on_drop: false }`
[INFO] [stdout] 5dbe3c414930d8d062b2e3de6929c7b5de77c3776986013893f8fcbaf695e054
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fca2ebe039cb0d418321b5e1c7277e6c704e76729433fb08d806f168979ebb60
[INFO] running `Command { std: "docker" "start" "-a" "fca2ebe039cb0d418321b5e1c7277e6c704e76729433fb08d806f168979ebb60", kill_on_drop: false }`
[INFO] [stderr]    Compiling rio-lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/riolox/interpreter.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |     visitor::{SafeVisitor, Visitor},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LuxError` is never used
[INFO] [stdout]  --> src/riolox/error.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum LuxError {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `InterpreterResult` is never used
[INFO] [stdout]  --> src/riolox/interpreter.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type InterpreterResult = Result<Box<dyn Any>, super::error::LuxError>;
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]   --> src/riolox/interpreter.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Interpreter;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `evaluate`, `check_num_operand`, and `check_num_operands` are never used
[INFO] [stdout]    --> src/riolox/interpreter.rs:163:12
[INFO] [stdout]     |
[INFO] [stdout] 162 | impl Interpreter {
[INFO] [stdout]     | ---------------- methods in this implementation
[INFO] [stdout] 163 |     pub fn evaluate(&self, expr: &Expr) -> InterpreterResult {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn check_num_operand(&self, token: TokenType, operand: &dyn Any) -> Result<(), LuxError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     fn check_num_operands(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Test` is never used
[INFO] [stdout]    --> src/riolox/interpreter.rs:187:7
[INFO] [stdout]     |
[INFO] [stdout] 187 | trait Test {
[INFO] [stdout]     |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `synchronize` is never used
[INFO] [stdout]    --> src/riolox/parser.rs:245:8
[INFO] [stdout]     |
[INFO] [stdout] 16  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 245 |     fn synchronize(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `visit_mut` is never used
[INFO] [stdout]  --> src/riolox/visitor.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Visitor<R: Sized> {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 4 |     fn visit(&self, expr: &Expr) -> R;
[INFO] [stdout] 5 |     fn visit_mut(&mut self, expr: &Expr) -> R;
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SafeVisitor` is never used
[INFO] [stdout]  --> src/riolox/visitor.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait SafeVisitor<R: Sized> {
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "fca2ebe039cb0d418321b5e1c7277e6c704e76729433fb08d806f168979ebb60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca2ebe039cb0d418321b5e1c7277e6c704e76729433fb08d806f168979ebb60", kill_on_drop: false }`
[INFO] [stdout] fca2ebe039cb0d418321b5e1c7277e6c704e76729433fb08d806f168979ebb60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bc088d16168f1cd51e64e7413528442a20b80fe8c140d47db76ebd3fa9cd6c6
[INFO] running `Command { std: "docker" "start" "-a" "1bc088d16168f1cd51e64e7413528442a20b80fe8c140d47db76ebd3fa9cd6c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rio-lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0603]: enum import `Expr` is private
[INFO] [stdout]   --> src/riolox/printers.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |         parser::Expr,
[INFO] [stdout]    |                 ^^^^ private enum import
[INFO] [stdout]    |
[INFO] [stdout] note: the enum import `Expr` is defined here...
[INFO] [stdout]   --> src/riolox/parser.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  |     Expr,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] note: ...and refers to the enum `Expr` which is defined here
[INFO] [stdout]   --> src/riolox/mod.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum Expr {
[INFO] [stdout]    | ^^^^^^^^^^^^^ you could import this directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Visitor`
[INFO] [stdout]  --> src/riolox/interpreter.rs:7:28
[INFO] [stdout]   |
[INFO] [stdout] 7 |     visitor::{SafeVisitor, Visitor},
[INFO] [stdout]   |                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rio-lox` (bin "rio-lox" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1bc088d16168f1cd51e64e7413528442a20b80fe8c140d47db76ebd3fa9cd6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bc088d16168f1cd51e64e7413528442a20b80fe8c140d47db76ebd3fa9cd6c6", kill_on_drop: false }`
[INFO] [stdout] 1bc088d16168f1cd51e64e7413528442a20b80fe8c140d47db76ebd3fa9cd6c6