[INFO] cloning repository https://github.com/eckertliam/lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eckertliam/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feckertliam%2Flox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feckertliam%2Flox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d126b0d9b01dd26348795ccd063cbcecb9fa0ded
[INFO] testing eckertliam/lox against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feckertliam%2Flox" "/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/eckertliam/lox
[INFO] finished tweaking git repo https://github.com/eckertliam/lox
[INFO] tweaked toml for git repo https://github.com/eckertliam/lox written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eckertliam/lox on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eckertliam/lox 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d4adeedb552b70687794c520cde545424f9bbb723ad4f61096edb7bd81ed5bf
[INFO] running `Command { std: "docker" "start" "-a" "7d4adeedb552b70687794c520cde545424f9bbb723ad4f61096edb7bd81ed5bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d4adeedb552b70687794c520cde545424f9bbb723ad4f61096edb7bd81ed5bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4adeedb552b70687794c520cde545424f9bbb723ad4f61096edb7bd81ed5bf", kill_on_drop: false }`
[INFO] [stdout] 7d4adeedb552b70687794c520cde545424f9bbb723ad4f61096edb7bd81ed5bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] a7d978352a73359db917163a22b1af814bebdf4a3c8adf94e6fa09e80fc56330
[INFO] running `Command { std: "docker" "start" "-a" "a7d978352a73359db917163a22b1af814bebdf4a3c8adf94e6fa09e80fc56330", kill_on_drop: false }`
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut line = String::new();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut line = String::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VERSION` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const VERSION: &str = "0.0.1";
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Modulo` is never constructed
[INFO] [stdout]   --> src/opcode.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  3 | pub enum OpCode {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Modulo,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/chunk.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Chunk {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 5 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Chunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_opcode` is never used
[INFO] [stdout]   --> src/chunk.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn write_opcode(&mut self, opcode: OpCode, line: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_truthy` and `not_equal` are never used
[INFO] [stdout]   --> src/value.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Value {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 23 |     pub fn is_truthy(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn not_equal(&self, other: &Value) -> Value {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `reset` and `peek` are never used
[INFO] [stdout]   --> src/vm.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Stack {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn reset(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn peek(&self, distance: usize) -> &Value {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Or`, `And`, `Call`, and `Primary` are never constructed
[INFO] [stdout]    --> src/compiler.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 223 | enum Precedence {
[INFO] [stdout]     |      ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 226 |     Or,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 227 |     And,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 233 |     Call,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 234 |     Primary,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Precedence` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `identifier` is never used
[INFO] [stdout]    --> src/scanner.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout]   8 | impl<'src> Scanner<'src> {
[INFO] [stdout]     | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn identifier(&mut self) -> Token<'src> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "a7d978352a73359db917163a22b1af814bebdf4a3c8adf94e6fa09e80fc56330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d978352a73359db917163a22b1af814bebdf4a3c8adf94e6fa09e80fc56330", kill_on_drop: false }`
[INFO] [stdout] a7d978352a73359db917163a22b1af814bebdf4a3c8adf94e6fa09e80fc56330
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] a89652432c8b39aeac77ead041e237c4a72a663538c61ef0857ee3c702050ee2
[INFO] running `Command { std: "docker" "start" "-a" "a89652432c8b39aeac77ead041e237c4a72a663538c61ef0857ee3c702050ee2", kill_on_drop: false }`
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut line = String::new();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut line = String::new();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `VERSION` is never used
[INFO] [stdout]   --> src/main.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const VERSION: &str = "0.0.1";
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Modulo` is never constructed
[INFO] [stdout]   --> src/opcode.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout]  3 | pub enum OpCode {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Modulo,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OpCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/chunk.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Chunk {
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] 5 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Chunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `write_opcode` is never used
[INFO] [stdout]   --> src/chunk.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Chunk {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub fn write_opcode(&mut self, opcode: OpCode, line: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_truthy` and `not_equal` are never used
[INFO] [stdout]   --> src/value.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl Value {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] 23 |     pub fn is_truthy(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85 |     pub fn not_equal(&self, other: &Value) -> Value {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `reset` and `peek` are never used
[INFO] [stdout]   --> src/vm.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Stack {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn reset(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     pub fn peek(&self, distance: usize) -> &Value {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `identifier` is never used
[INFO] [stdout]    --> src/scanner.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout]   8 | impl<'src> Scanner<'src> {
[INFO] [stdout]     | ------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn identifier(&mut self) -> Token<'src> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]    --> src/compiler.rs:523:9
[INFO] [stdout]     |
[INFO] [stdout] 523 |         assert_eq!(rule.prefix, None);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the address of the same function can vary between different codegen units
[INFO] [stdout]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "a89652432c8b39aeac77ead041e237c4a72a663538c61ef0857ee3c702050ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a89652432c8b39aeac77ead041e237c4a72a663538c61ef0857ee3c702050ee2", kill_on_drop: false }`
[INFO] [stdout] a89652432c8b39aeac77ead041e237c4a72a663538c61ef0857ee3c702050ee2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] cf3099e501497bf68f00386bf1a04e163e3aa067387ca7935c18576ed212198c
[INFO] running `Command { std: "docker" "start" "-a" "cf3099e501497bf68f00386bf1a04e163e3aa067387ca7935c18576ed212198c", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut line = String::new();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/main.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut line = String::new();
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `VERSION` is never used
[INFO] [stderr]   --> src/main.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | const VERSION: &str = "0.0.1";
[INFO] [stderr]    |       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Modulo` is never constructed
[INFO] [stderr]   --> src/opcode.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr]  3 | pub enum OpCode {
[INFO] [stderr]    |          ------ variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 16 |     Modulo,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `OpCode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `name` is never read
[INFO] [stderr]  --> src/chunk.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Chunk {
[INFO] [stderr]   |            ----- field in this struct
[INFO] [stderr] 5 |     pub name: String,
[INFO] [stderr]   |         ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Chunk` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `write_opcode` is never used
[INFO] [stderr]   --> src/chunk.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl Chunk {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 26 |     pub fn write_opcode(&mut self, opcode: OpCode, line: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `is_truthy` and `not_equal` are never used
[INFO] [stderr]   --> src/value.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl Value {
[INFO] [stderr]    | ---------- methods in this implementation
[INFO] [stderr] 23 |     pub fn is_truthy(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 85 |     pub fn not_equal(&self, other: &Value) -> Value {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `reset` and `peek` are never used
[INFO] [stderr]   --> src/vm.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | impl Stack {
[INFO] [stderr]    | ---------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 19 |     pub fn reset(&mut self) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 33 |     pub fn peek(&self, distance: usize) -> &Value {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `identifier` is never used
[INFO] [stderr]    --> src/scanner.rs:106:8
[INFO] [stderr]     |
[INFO] [stderr]   8 | impl<'src> Scanner<'src> {
[INFO] [stderr]     | ------------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 106 |     fn identifier(&mut self) -> Token<'src> {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]    --> src/compiler.rs:523:9
[INFO] [stderr]     |
[INFO] [stderr] 523 |         assert_eq!(rule.prefix, None);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: the address of the same function can vary between different codegen units
[INFO] [stderr]     = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]     = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr]     = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `lox` (bin "lox" test) generated 10 warnings (run `cargo fix --bin "lox" -p lox --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/lox/f3b2ecb40138b411/deps/lox-f3b2ecb40138b411)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr] 
[INFO] [stderr] thread 'compiler::tests::test_precedence' (27) panicked at src/compiler.rs:245:18:
[INFO] [stderr] trying to construct an enum from an invalid value 0xb
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5f52eabd89d2 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x5f52eabd89d2 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized::<std[840933623431fd06]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x5f52eabd89d2 - std[840933623431fd06]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x5f52eabd89d2 - <<std[840933623431fd06]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x5f52eabedd0a - <core[8f93d80df273fe75]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x5f52eabedd0a - core[8f93d80df273fe75]::fmt::write
[INFO] [stderr]    6:     0x5f52eabde566 - std[840933623431fd06]::io::default_write_fmt::<std[840933623431fd06]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x5f52eabde566 - <std[840933623431fd06]::sys::stdio::unix::Stderr as std[840933623431fd06]::io::Write>::write_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]    8:     0x5f52eabb6e9f - <std[840933623431fd06]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x5f52eabb6e9f - std[840933623431fd06]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x5f52eabd0cd1 - std[840933623431fd06]::panicking::default_hook
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x5f52eab6c5be - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   12:     0x5f52eab6c5be - test[2f1252070343a163]::test_main_with_exit_callback::<test[2f1252070343a163]::test_main::{closure#0}>::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x5f52eabd0ec2 - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   14:     0x5f52eabd0ec2 - std[840933623431fd06]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13
[INFO] [stderr]   15:     0x5f52eabb6f58 - std[840933623431fd06]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:698:13
[INFO] [stderr]   16:     0x5f52eabae929 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace::<std[840933623431fd06]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   17:     0x5f52eabb7dad - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5
[INFO] [stderr]   18:     0x5f52eabee1fd - core[8f93d80df273fe75]::panicking::panic_nounwind_fmt::runtime
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x5f52eabee1fd - core[8f93d80df273fe75]::panicking::panic_nounwind_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/intrinsics/mod.rs:2431:9
[INFO] [stderr]   20:     0x5f52eabee365 - core[8f93d80df273fe75]::panicking::panic_invalid_enum_construction
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:318:5
[INFO] [stderr]   21:     0x5f52eab5bf7f - <lox[c9454a697f2db39]::compiler::Precedence as core[8f93d80df273fe75]::convert::From<u8>>::from
[INFO] [stderr]                                at /opt/rustwide/workdir/src/compiler.rs:245:18
[INFO] [stderr]   22:     0x5f52eab599d0 - <lox[c9454a697f2db39]::compiler::Precedence>::increment
[INFO] [stderr]                                at /opt/rustwide/workdir/src/compiler.rs:239:9
[INFO] [stderr]   23:     0x5f52eab5f4b3 - lox[c9454a697f2db39]::compiler::tests::test_precedence
[INFO] [stderr]                                at /opt/rustwide/workdir/src/compiler.rs:516:37
[INFO] [stderr]   24:     0x5f52eab5e347 - lox[c9454a697f2db39]::compiler::tests::test_precedence::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/src/compiler.rs:505:25
[INFO] [stderr]   25:     0x5f52eab5d116 - <lox[c9454a697f2db39]::compiler::tests::test_precedence::{closure#0} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   26:     0x5f52eab6096b - <fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x5f52eab6096b - test[2f1252070343a163]::__rust_begin_short_backtrace::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18
[INFO] [stderr]   28:     0x5f52eab6d1ca - test[2f1252070343a163]::run_test_in_process::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74
[INFO] [stderr]   29:     0x5f52eab6d1ca - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   30:     0x5f52eab6d1ca - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stderr]   31:     0x5f52eab6d1ca - std[840933623431fd06]::panicking::catch_unwind::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stderr]   32:     0x5f52eab6d1ca - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stderr]   33:     0x5f52eab6d1ca - test[2f1252070343a163]::run_test_in_process
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27
[INFO] [stderr]   34:     0x5f52eab6d1ca - test[2f1252070343a163]::run_test::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43
[INFO] [stderr]   35:     0x5f52eab67694 - test[2f1252070343a163]::run_test::{closure#1}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41
[INFO] [stderr]   36:     0x5f52eab67694 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace::<test[2f1252070343a163]::run_test::{closure#1}, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   37:     0x5f52eab6fcc2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stderr]   38:     0x5f52eab6fcc2 - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   39:     0x5f52eab6fcc2 - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stderr]   40:     0x5f52eab6fcc2 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stderr]   41:     0x5f52eab6fcc2 - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stderr]   42:     0x5f52eab6fcc2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stderr]   43:     0x5f52eab6fcc2 - <std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   44:     0x5f52eabd827f - <alloc[40b2bae28975ac47]::boxed::Box<dyn core[8f93d80df273fe75]::ops::function::FnOnce<(), Output = ()> + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9
[INFO] [stderr]   45:     0x5f52eabd827f - <std[840933623431fd06]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stderr]   46:     0x7aaf0b0a3aa4 - <unknown>
[INFO] [stderr]   47:     0x7aaf0b130a64 - clone
[INFO] [stderr]   48:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--bin lox`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/lox/f3b2ecb40138b411/deps/lox-f3b2ecb40138b411` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "cf3099e501497bf68f00386bf1a04e163e3aa067387ca7935c18576ed212198c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3099e501497bf68f00386bf1a04e163e3aa067387ca7935c18576ed212198c", kill_on_drop: false }`
[INFO] [stdout] cf3099e501497bf68f00386bf1a04e163e3aa067387ca7935c18576ed212198c
