[INFO] cloning repository https://github.com/jhonnatangomes/rabbit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jhonnatangomes/rabbit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhonnatangomes%2Frabbit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhonnatangomes%2Frabbit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cd75bddf0d8b3d9f6b7d8a6b063b72ceb47f3ff
[INFO] checking jhonnatangomes/rabbit against master#d49be02cf6d2e2a01264fcdef1e20c826710c0f5 for pr-133570-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhonnatangomes%2Frabbit" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jhonnatangomes/rabbit on toolchain d49be02cf6d2e2a01264fcdef1e20c826710c0f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jhonnatangomes/rabbit
[INFO] finished tweaking git repo https://github.com/jhonnatangomes/rabbit
[INFO] tweaked toml for git repo https://github.com/jhonnatangomes/rabbit written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jhonnatangomes/rabbit 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" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94bfb5f179da3aa81af3caba9a103ef891e41f75bc66c06633af1bb216e4e8d7
[INFO] running `Command { std: "docker" "start" "-a" "94bfb5f179da3aa81af3caba9a103ef891e41f75bc66c06633af1bb216e4e8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94bfb5f179da3aa81af3caba9a103ef891e41f75bc66c06633af1bb216e4e8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94bfb5f179da3aa81af3caba9a103ef891e41f75bc66c06633af1bb216e4e8d7", kill_on_drop: false }`
[INFO] [stdout] 94bfb5f179da3aa81af3caba9a103ef891e41f75bc66c06633af1bb216e4e8d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+d49be02cf6d2e2a01264fcdef1e20c826710c0f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 655af3a920927e9bb7ef88537b240b5938c416728e1af4e65a4488af8650544f
[INFO] running `Command { std: "docker" "start" "-a" "655af3a920927e9bb7ef88537b240b5938c416728e1af4e65a4488af8650544f", kill_on_drop: false }`
[INFO] [stderr]     Checking rabbit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `vm`
[INFO] [stdout]   --> src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut vm = Vm::new(chunk);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_vm`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut vm = Vm::new(chunk);
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let source = fs::read_to_string(path).unwrap();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write` and `add_constant` are never used
[INFO] [stdout]   --> src/chunk.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Chunk {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn write(&mut self, opcode: OpCode, span: Span) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn add_constant(&mut self, value: Value) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/chunk.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum OpCode {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 28 |     Constant(usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 29 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     Subtract,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 31 |     Multiply,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     Divide,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 33 |     Negate,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `column` is never read
[INFO] [stdout]   --> src/chunk.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Span {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 38 |     pub line: usize,
[INFO] [stdout] 39 |     pub column: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `disassemble_chunk` is never used
[INFO] [stdout]  --> src/debug.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Chunk {
[INFO] [stdout]   | ---------- method in this implementation
[INFO] [stdout] 4 |     pub fn disassemble_chunk(&self, name: &str) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token_type` is never read
[INFO] [stdout]    --> src/scanner.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 210 | pub struct Token {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 211 |     token_type: TokenType,
[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: variants `CompileError` and `RuntimeError` are never constructed
[INFO] [stdout]   --> src/vm.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub enum InterpretResult {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 78 |     CompileError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 79 |     RuntimeError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InterpretResult` 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: `vm`
[INFO] [stdout]   --> src/main.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut vm = Vm::new(chunk);
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_vm`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut vm = Vm::new(chunk);
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let source = fs::read_to_string(path).unwrap();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `write` and `add_constant` are never used
[INFO] [stdout]   --> src/chunk.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Chunk {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn write(&mut self, opcode: OpCode, span: Span) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub fn add_constant(&mut self, value: Value) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/chunk.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum OpCode {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 28 |     Constant(usize),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 29 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 30 |     Subtract,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 31 |     Multiply,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 32 |     Divide,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 33 |     Negate,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `column` is never read
[INFO] [stdout]   --> src/chunk.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct Span {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 38 |     pub line: usize,
[INFO] [stdout] 39 |     pub column: usize,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `disassemble_chunk` is never used
[INFO] [stdout]  --> src/debug.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Chunk {
[INFO] [stdout]   | ---------- method in this implementation
[INFO] [stdout] 4 |     pub fn disassemble_chunk(&self, name: &str) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CompileError` and `RuntimeError` are never constructed
[INFO] [stdout]   --> src/vm.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub enum InterpretResult {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 78 |     CompileError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 79 |     RuntimeError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InterpretResult` 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 0.31s
[INFO] running `Command { std: "docker" "inspect" "655af3a920927e9bb7ef88537b240b5938c416728e1af4e65a4488af8650544f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "655af3a920927e9bb7ef88537b240b5938c416728e1af4e65a4488af8650544f", kill_on_drop: false }`
[INFO] [stdout] 655af3a920927e9bb7ef88537b240b5938c416728e1af4e65a4488af8650544f