[INFO] cloning repository https://github.com/mthom26/monkey-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mthom26/monkey-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthom26%2Fmonkey-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthom26%2Fmonkey-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92289eca2a3216ee6042403ecaf1d63e05e29dc0
[INFO] testing mthom26/monkey-lang against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthom26%2Fmonkey-lang" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mthom26/monkey-lang on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mthom26/monkey-lang
[INFO] finished tweaking git repo https://github.com/mthom26/monkey-lang
[INFO] tweaked toml for git repo https://github.com/mthom26/monkey-lang written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mthom26/monkey-lang 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v5.0.3
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce73bb9023d3aa18bbdad99b3cc4a0ebb659eb7217ede0e999acdeed9e395ff9
[INFO] running `Command { std: "docker" "start" "-a" "ce73bb9023d3aa18bbdad99b3cc4a0ebb659eb7217ede0e999acdeed9e395ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce73bb9023d3aa18bbdad99b3cc4a0ebb659eb7217ede0e999acdeed9e395ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce73bb9023d3aa18bbdad99b3cc4a0ebb659eb7217ede0e999acdeed9e395ff9", kill_on_drop: false }`
[INFO] [stdout] ce73bb9023d3aa18bbdad99b3cc4a0ebb659eb7217ede0e999acdeed9e395ff9
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4535b653221a317b4c3e72e7d44bb00f619b5bc440cba2eb4586006fefe76e53
[INFO] running `Command { std: "docker" "start" "-a" "4535b653221a317b4c3e72e7d44bb00f619b5bc440cba2eb4586006fefe76e53", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rustyline v5.0.3
[INFO] [stderr]    Compiling monkey-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `OpCode` is never used
[INFO] [stdout]  --> src/compiler/code.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum OpCode {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `make_op` is never used
[INFO] [stdout]   --> src/compiler/code.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn make_op(opcode: OpCode) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `two_u8_to_usize` is never used
[INFO] [stdout]   --> src/compiler/code.rs:80:8
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub fn two_u8_to_usize(int_one: u8, int_two: u8) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GLOBAL` is never used
[INFO] [stdout]  --> src/compiler/compiler.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const GLOBAL: &str = "GLOBAL";
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Compiler` is never constructed
[INFO] [stdout]   --> src/compiler/compiler.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Compiler {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/compiler/compiler.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_source` is never used
[INFO] [stdout]   --> src/compiler/compiler.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn from_source(input: &str) -> ByteCode {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile_statements` is never used
[INFO] [stdout]   --> src/compiler/compiler.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn compile_statements(&mut self, ast: Vec<Statement>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `compile_expression` is never used
[INFO] [stdout]   --> src/compiler/compiler.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn compile_expression(&mut self, expr: Expression) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_constant` is never used
[INFO] [stdout]    --> src/compiler/compiler.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn add_constant(&mut self, object: Object) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_instruction` is never used
[INFO] [stdout]    --> src/compiler/compiler.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 |     fn add_instruction(&mut self, op_code: OpCode) -> u16 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_last_instruction_pop` is never used
[INFO] [stdout]    --> src/compiler/compiler.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn is_last_instruction_pop(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove_last_pop` is never used
[INFO] [stdout]    --> src/compiler/compiler.rs:165:8
[INFO] [stdout]     |
[INFO] [stdout] 165 |     fn remove_last_pop(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `replace_op` is never used
[INFO] [stdout]    --> src/compiler/compiler.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 170 |     fn replace_op(&mut self, pos: usize, opcode: OpCode) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Symbol` is never constructed
[INFO] [stdout]  --> src/compiler/symbol_table.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Symbol {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymbolTable` is never constructed
[INFO] [stdout]   --> src/compiler/symbol_table.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct SymbolTable {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/compiler/symbol_table.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub fn new(index: u16, scope: String) -> Self {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/compiler/symbol_table.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `define` is never used
[INFO] [stdout]   --> src/compiler/symbol_table.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn define(&mut self, name: String, scope: String) -> u16 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `resolve` is never used
[INFO] [stdout]   --> src/compiler/symbol_table.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn resolve(&self, name: String) -> Option<u16> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `STACK_SIZE` is never used
[INFO] [stdout]  --> src/vm.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const STACK_SIZE: usize = 2048;
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `GLOBAL_SIZE` is never used
[INFO] [stdout]  --> src/vm.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const GLOBAL_SIZE: usize = 2048; // Setting this too high causes an overflow
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Vm` is never constructed
[INFO] [stdout]   --> src/vm.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Vm {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/vm.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn new(bytecode: ByteCode) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> src/vm.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn run(&mut self) {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push` is never used
[INFO] [stdout]    --> src/vm.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn push(&mut self, obj: Object) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]    --> src/vm.rs:204:8
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn pop(&mut self) -> Object {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_stack` is never used
[INFO] [stdout]    --> src/vm.rs:210:8
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn print_stack(&self, num: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 28 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.20s
[INFO] running `Command { std: "docker" "inspect" "4535b653221a317b4c3e72e7d44bb00f619b5bc440cba2eb4586006fefe76e53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4535b653221a317b4c3e72e7d44bb00f619b5bc440cba2eb4586006fefe76e53", kill_on_drop: false }`
[INFO] [stdout] 4535b653221a317b4c3e72e7d44bb00f619b5bc440cba2eb4586006fefe76e53
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4b5588fff3d0a7130b6492f9c030574af0af7abe4e45b2c0797ea649961617a
[INFO] running `Command { std: "docker" "start" "-a" "b4b5588fff3d0a7130b6492f9c030574af0af7abe4e45b2c0797ea649961617a", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]  --> src/compiler/symbol_table.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Symbol {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] 4 |     index: u16,
[INFO] [stdout] 5 |     scope: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_stack` is never used
[INFO] [stdout]    --> src/vm.rs:210:8
[INFO] [stdout]     |
[INFO] [stdout] 210 |     fn print_stack(&self, num: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "b4b5588fff3d0a7130b6492f9c030574af0af7abe4e45b2c0797ea649961617a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4b5588fff3d0a7130b6492f9c030574af0af7abe4e45b2c0797ea649961617a", kill_on_drop: false }`
[INFO] [stdout] b4b5588fff3d0a7130b6492f9c030574af0af7abe4e45b2c0797ea649961617a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5116d7d1c107a28196669d03f2050e88baf390e1b4b4e068eba8d5826e6cd95e
[INFO] running `Command { std: "docker" "start" "-a" "5116d7d1c107a28196669d03f2050e88baf390e1b4b4e068eba8d5826e6cd95e", kill_on_drop: false }`
[INFO] [stderr] warning: field `scope` is never read
[INFO] [stderr]  --> src/compiler/symbol_table.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Symbol {
[INFO] [stderr]   |            ------ field in this struct
[INFO] [stderr] 4 |     index: u16,
[INFO] [stderr] 5 |     scope: String,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `print_stack` is never used
[INFO] [stderr]    --> src/vm.rs:210:8
[INFO] [stderr]     |
[INFO] [stderr] 210 |     fn print_stack(&self, num: usize) {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey-lang` (bin "monkey-lang" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/monkey_lang-6c74e8d3846436bf)
[INFO] [stdout] 
[INFO] [stdout] running 44 tests
[INFO] [stdout] test compiler::code::tests::test_two_u8_to_usize ... ok
[INFO] [stdout] test compiler::code::tests::make_ops ... ok
[INFO] [stdout] test compiler::compiler::tests::test_basic_expressions ... ok
[INFO] [stdout] test compiler::compiler::tests::test_booleans ... ok
[INFO] [stdout] test compiler::code::tests::test_globals ... ok
[INFO] [stdout] test compiler::code::tests::test_jumps ... ok
[INFO] [stdout] test compiler::compiler::tests::test_globals ... ok
[INFO] [stdout] test compiler::compiler::tests::test_comparison_operators ... ok
[INFO] [stdout] test compiler::compiler::tests::test_if ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_builtins ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_env ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_expression_eval ... ok
[INFO] [stdout] test compiler::compiler::tests::test_prefixes ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_fn_literals ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_fn_calls ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_if_conditionals ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_prefixes ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_infixes ... ok
[INFO] [stdout] test lexer::tests::lex_ignore_whitespace ... ok
[INFO] [stdout] test lexer::tests::lex_digits ... ok
[INFO] [stdout] test lexer::tests::lex_tokens ... ok
[INFO] [stdout] test lexer::tests::test_is_letter ... ok
[INFO] [stdout] test lexer::tests::test_double_character_tokens ... ok
[INFO] [stdout] test lexer::tests::test_keywords ... ok
[INFO] [stdout] test lexer::tests::test_string ... ok
[INFO] [stdout] test evaluator::evaluator::tests::test_return ... ok
[INFO] [stdout] test lexer::tests::ignore_all_whitespace ... ok
[INFO] [stdout] test parser::tests::parse_basic_expression ... ok
[INFO] [stdout] test parser::tests::parse_basic_let_statement ... ok
[INFO] [stdout] test parser::tests::parse_parenthesised_expression ... ok
[INFO] [stdout] test parser::tests::parse_multiple_epressions ... ok
[INFO] [stdout] test parser::tests::test_fn_literal ... ok
[INFO] [stdout] test parser::tests::test_function_call ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'vm::tests::test_basics' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: test failed, to rerun pass `--bin monkey-lang`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/monkey_lang-6c74e8d3846436bf` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "5116d7d1c107a28196669d03f2050e88baf390e1b4b4e068eba8d5826e6cd95e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5116d7d1c107a28196669d03f2050e88baf390e1b4b4e068eba8d5826e6cd95e", kill_on_drop: false }`
[INFO] [stdout] 5116d7d1c107a28196669d03f2050e88baf390e1b4b4e068eba8d5826e6cd95e
