[INFO] cloning repository https://github.com/dbradf/lox-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dbradf/lox-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbradf%2Flox-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbradf%2Flox-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b202957f0afb69da1f9fb6d02dfa28f0b43ec3e
[INFO] checking dbradf/lox-vm against master#cccf075eba88363269e8589ebb8d40874cc542d8 for pr-142681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdbradf%2Flox-vm" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dbradf/lox-vm
[INFO] finished tweaking git repo https://github.com/dbradf/lox-vm
[INFO] tweaked toml for git repo https://github.com/dbradf/lox-vm written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dbradf/lox-vm on toolchain cccf075eba88363269e8589ebb8d40874cc542d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dbradf/lox-vm 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" "+cccf075eba88363269e8589ebb8d40874cc542d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88b5efa9364b491e48c932adfb75542bd1955f11d23a387ab407d847a4ec4a1d
[INFO] running `Command { std: "docker" "start" "-a" "88b5efa9364b491e48c932adfb75542bd1955f11d23a387ab407d847a4ec4a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88b5efa9364b491e48c932adfb75542bd1955f11d23a387ab407d847a4ec4a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b5efa9364b491e48c932adfb75542bd1955f11d23a387ab407d847a4ec4a1d", kill_on_drop: false }`
[INFO] [stdout] 88b5efa9364b491e48c932adfb75542bd1955f11d23a387ab407d847a4ec4a1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b12b760093628bcad186703c9619c766155233eb83c905f9021c238a1eea5d71
[INFO] running `Command { std: "docker" "start" "-a" "b12b760093628bcad186703c9619c766155233eb83c905f9021c238a1eea5d71", kill_on_drop: false }`
[INFO] [stderr]     Checking clox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `OpAdd`, `OpConstant`, `OpDivide`, `OpNegate`, and `OpReturn`
[INFO] [stdout]  --> src/main.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::chunk::OpCode::{OpAdd, OpConstant, OpDivide, OpNegate, OpReturn};
[INFO] [stdout]   |                            ^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Chunk` and `OpCode`
[INFO] [stdout]  --> src/main.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::chunk::{Chunk, OpCode};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::debug::disassemble_chunk`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::debug::disassemble_chunk;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `OpAdd`, `OpConstant`, `OpDivide`, `OpNegate`, and `OpReturn`
[INFO] [stdout]  --> src/main.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::chunk::OpCode::{OpAdd, OpConstant, OpDivide, OpNegate, OpReturn};
[INFO] [stdout]   |                            ^^^^^  ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Chunk` and `OpCode`
[INFO] [stdout]  --> src/main.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::chunk::{Chunk, OpCode};
[INFO] [stdout]   |                    ^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::debug::disassemble_chunk`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::debug::disassemble_chunk;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let result = vm.interpret_src(&source);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `disassemble_chunk` is never used
[INFO] [stdout]  --> src/debug.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn disassemble_chunk(chunk: &Chunk, name: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `disassemble_instruction` is never used
[INFO] [stdout]   --> src/debug.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn disassemble_instruction(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_instruction` is never used
[INFO] [stdout]   --> src/debug.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn simple_instruction(name: &str, offset: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constant_instruction` is never used
[INFO] [stdout]   --> src/debug.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn constant_instruction(name: &str, chunk: &Chunk, index: &usize, offset: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let result = vm.interpret_src(&source);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `disassemble_chunk` is never used
[INFO] [stdout]  --> src/debug.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn disassemble_chunk(chunk: &Chunk, name: &str) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `disassemble_instruction` is never used
[INFO] [stdout]   --> src/debug.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn disassemble_instruction(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_instruction` is never used
[INFO] [stdout]   --> src/debug.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn simple_instruction(name: &str, offset: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constant_instruction` is never used
[INFO] [stdout]   --> src/debug.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn constant_instruction(name: &str, chunk: &Chunk, index: &usize, offset: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "b12b760093628bcad186703c9619c766155233eb83c905f9021c238a1eea5d71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b12b760093628bcad186703c9619c766155233eb83c905f9021c238a1eea5d71", kill_on_drop: false }`
[INFO] [stdout] b12b760093628bcad186703c9619c766155233eb83c905f9021c238a1eea5d71