[INFO] cloning repository https://github.com/yukno1/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yukno1/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukno1%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukno1%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 701fbc7b2c87ec0eaa1929e8ed191d832bd1df75
[INFO] checking yukno1/rlox against 760e1de835e253bf28bbcbfee38b5e8ed9ffe074 for pr-133502-27
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyukno1%2Frlox" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yukno1/rlox
[INFO] finished tweaking git repo https://github.com/yukno1/rlox
[INFO] tweaked toml for git repo https://github.com/yukno1/rlox written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yukno1/rlox on toolchain 760e1de835e253bf28bbcbfee38b5e8ed9ffe074
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yukno1/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" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c36f533e8924a726b63f9d01e781fa8c8c28c96d1d595403829afb31452ee0f5" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e
[INFO] running `Command { std: "docker" "start" "2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e" "/opt/rustwide/cargo-home/bin/cargo" "+760e1de835e253bf28bbcbfee38b5e8ed9ffe074" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Chunk` and `OpCode::*`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     chunk::{Chunk, OpCode::*},
[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 imports: `Chunk` and `OpCode::*`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     chunk::{Chunk, OpCode::*},
[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: `ch`
[INFO] [stdout]    --> src/scanner.rs:105:22
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let Some((n, ch)) = self.chars.peek() else {
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]    --> src/scanner.rs:105:22
[INFO] [stdout]     |
[INFO] [stdout] 105 |         let Some((n, ch)) = self.chars.peek() else {
[INFO] [stdout]     |                      ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/vm.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 _ => todo!("{instruction:?}"),
[INFO] [stdout]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/vm.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 OP_RETURN => {
[INFO] [stdout]    |                 --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 OP_CONSTANT(n) => {
[INFO] [stdout]    |                 -------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 68 |                 OP_ADD => binart_op!(self, +),
[INFO] [stdout]    |                 ------ matches some of the same values
[INFO] [stdout] 69 |                 OP_SUBSTRACT => binart_op!(self, -),
[INFO] [stdout]    |                 ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 76 |                 _ => todo!("{instruction:?}"),
[INFO] [stdout]    |                 ^ ...and 3 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TokenNone` is never constructed
[INFO] [stdout]   --> src/scanner.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     TokenNone,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CompileError` and `RuntimeError` are never constructed
[INFO] [stdout]   --> src/vm.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum InterpreterResult {
[INFO] [stdout]    |          ----------------- variants in this enum
[INFO] [stdout] 19 |     Ok,
[INFO] [stdout] 20 |     CompileError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 21 |     RuntimeError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InterpreterResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chunk`, `ip`, `trace_execution`, `stack`, and `trace_stack` are never read
[INFO] [stdout]   --> src/vm.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct VM<'a> {
[INFO] [stdout]    |            -- fields in this struct
[INFO] [stdout] 25 |     chunk: Option<&'a Chunk>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 26 |     ip: usize, // isntruction pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 27 |     trace_execution: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     stack: Vec<Value>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     trace_stack: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `run`, `push`, and `pop` are never used
[INFO] [stdout]   --> src/vm.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<'a> VM<'a> {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn run(&mut self) -> InterpreterResult {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn push(&mut self, value: Value) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn pop(&mut self) -> Value {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/vm.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 _ => todo!("{instruction:?}"),
[INFO] [stdout]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/vm.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |                 OP_RETURN => {
[INFO] [stdout]    |                 --------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 OP_CONSTANT(n) => {
[INFO] [stdout]    |                 -------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 68 |                 OP_ADD => binart_op!(self, +),
[INFO] [stdout]    |                 ------ matches some of the same values
[INFO] [stdout] 69 |                 OP_SUBSTRACT => binart_op!(self, -),
[INFO] [stdout]    |                 ------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 76 |                 _ => todo!("{instruction:?}"),
[INFO] [stdout]    |                 ^ ...and 3 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `TokenNone` is never constructed
[INFO] [stdout]   --> src/scanner.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 52 |     TokenNone,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CompileError` and `RuntimeError` are never constructed
[INFO] [stdout]   --> src/vm.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum InterpreterResult {
[INFO] [stdout]    |          ----------------- variants in this enum
[INFO] [stdout] 19 |     Ok,
[INFO] [stdout] 20 |     CompileError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 21 |     RuntimeError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InterpreterResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `chunk`, `ip`, `trace_execution`, `stack`, and `trace_stack` are never read
[INFO] [stdout]   --> src/vm.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct VM<'a> {
[INFO] [stdout]    |            -- fields in this struct
[INFO] [stdout] 25 |     chunk: Option<&'a Chunk>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 26 |     ip: usize, // isntruction pointer
[INFO] [stdout]    |     ^^
[INFO] [stdout] 27 |     trace_execution: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     stack: Vec<Value>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 29 |     trace_stack: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `run`, `push`, and `pop` are never used
[INFO] [stdout]   --> src/vm.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl<'a> VM<'a> {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn run(&mut self) -> InterpreterResult {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 81 |     pub fn push(&mut self, value: Value) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn pop(&mut self) -> Value {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e", kill_on_drop: false }`
[INFO] [stdout] 2d0b444d6f97d132dbc2542150e9a2b0ed05ce186f9d5f8d8d45cdae5288261e
