[INFO] cloning repository https://github.com/julian-computes/lox-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/julian-computes/lox-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulian-computes%2Flox-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulian-computes%2Flox-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7082202fdba0e1b8742f78ed2e9e19818e9bac5
[INFO] checking julian-computes/lox-rs against try#af54b6062f33b99e418444700f3a823ef0214052 for pr-138952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjulian-computes%2Flox-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/julian-computes/lox-rs on toolchain af54b6062f33b99e418444700f3a823ef0214052
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/julian-computes/lox-rs
[INFO] finished tweaking git repo https://github.com/julian-computes/lox-rs
[INFO] tweaked toml for git repo https://github.com/julian-computes/lox-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/julian-computes/lox-rs 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" "+af54b6062f33b99e418444700f3a823ef0214052" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53085f7a856f1f27f84f2bafa43b68b00490b5527e525e8da07980efb3f774ea
[INFO] running `Command { std: "docker" "start" "-a" "53085f7a856f1f27f84f2bafa43b68b00490b5527e525e8da07980efb3f774ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53085f7a856f1f27f84f2bafa43b68b00490b5527e525e8da07980efb3f774ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53085f7a856f1f27f84f2bafa43b68b00490b5527e525e8da07980efb3f774ea", kill_on_drop: false }`
[INFO] [stdout] 53085f7a856f1f27f84f2bafa43b68b00490b5527e525e8da07980efb3f774ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+af54b6062f33b99e418444700f3a823ef0214052" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 149a060c83ef5c6743ddfdeca6e98cad3f7ae2307661f605498e6be7a3e601cc
[INFO] running `Command { std: "docker" "start" "-a" "149a060c83ef5c6743ddfdeca6e98cad3f7ae2307661f605498e6be7a3e601cc", kill_on_drop: false }`
[INFO] [stderr]     Checking lox-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/chunk.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum OpCode {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] 14 |     /// Produce a constant
[INFO] [stdout] 15 |     Constant(Rc<Value>),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 16 |     /// Binary addition
[INFO] [stdout] 17 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 18 |     /// Binary subtraction
[INFO] [stdout] 19 |     Subtract,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 20 |     /// Binary multiplication
[INFO] [stdout] 21 |     Multiply,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 22 |     /// Binary division
[INFO] [stdout] 23 |     Divide,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     /// Unary negation
[INFO] [stdout] 25 |     Negate,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     /// Return from the current function
[INFO] [stdout] 27 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `constant` is never used
[INFO] [stdout]   --> src/chunk.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn constant(val: Value) -> OpCode {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `iter` is never used
[INFO] [stdout]   --> src/chunk.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn iter(&self) -> Iter<'_, OpCode> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValueArray` is never constructed
[INFO] [stdout]  --> src/value.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ValueArray {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `write` are never used
[INFO] [stdout]   --> src/value.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl ValueArray {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn write(&mut self, value: Value) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `debug` and `stack` are never read
[INFO] [stdout]  --> src/vm.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct VM {
[INFO] [stdout]   |            -- fields in this struct
[INFO] [stdout] 8 |     debug: bool,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 9 |     stack: Vec<Value>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VM` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `InterpretError` is never used
[INFO] [stdout]   --> src/vm.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum InterpretError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InterpretError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `interpret`, `push`, and `pop` are never used
[INFO] [stdout]   --> src/vm.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl VM {
[INFO] [stdout]    | ------- associated items in this implementation
[INFO] [stdout] 19 |     pub fn new(debug: bool) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn interpret(&mut self, chunk: &Chunk) -> Result<(), InterpretError> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn push(&mut self, value: Value) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 73 |     fn pop(&mut self) -> Result<Value, InterpretError> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]    --> src/scanner.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 244 | pub struct Token {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 245 |     pub token_type: TokenType,
[INFO] [stdout] 246 |     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: variant `Return` is never constructed
[INFO] [stdout]   --> src/chunk.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum OpCode {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 27 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValueArray` is never constructed
[INFO] [stdout]  --> src/value.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct ValueArray {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `write` are never used
[INFO] [stdout]   --> src/value.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl ValueArray {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn write(&mut self, value: Value) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `RuntimeError` is never constructed
[INFO] [stdout]   --> src/vm.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum InterpretError {
[INFO] [stdout]    |          -------------- variant in this enum
[INFO] [stdout] 14 |     CompileError,
[INFO] [stdout] 15 |     RuntimeError,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `InterpretError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/vm.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl VM {
[INFO] [stdout]    | ------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new(debug: bool) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]    --> src/scanner.rs:246:9
[INFO] [stdout]     |
[INFO] [stdout] 244 | pub struct Token {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 245 |     pub token_type: TokenType,
[INFO] [stdout] 246 |     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 0.11s
[INFO] running `Command { std: "docker" "inspect" "149a060c83ef5c6743ddfdeca6e98cad3f7ae2307661f605498e6be7a3e601cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149a060c83ef5c6743ddfdeca6e98cad3f7ae2307661f605498e6be7a3e601cc", kill_on_drop: false }`
[INFO] [stdout] 149a060c83ef5c6743ddfdeca6e98cad3f7ae2307661f605498e6be7a3e601cc