[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] checking mthom26/monkey-lang against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthom26%2Fmonkey-lang" "/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/mthom26/monkey-lang on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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-1-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unicode-segmentation v1.3.0 [INFO] [stderr] Downloaded bitflags v1.2.0 [INFO] [stderr] Downloaded nodrop v0.1.13 [INFO] [stderr] Downloaded utf8parse v0.1.1 [INFO] [stderr] Downloaded unicode-width v0.1.6 [INFO] [stderr] Downloaded constant_time_eq v0.1.4 [INFO] [stderr] Downloaded byteorder v1.3.2 [INFO] [stderr] Downloaded rustc-demangle v0.1.16 [INFO] [stderr] Downloaded quote v0.6.13 [INFO] [stderr] Downloaded arrayref v0.3.5 [INFO] [stderr] Downloaded redox_syscall v0.1.56 [INFO] [stderr] Downloaded base64 v0.10.1 [INFO] [stderr] Downloaded backtrace v0.3.38 [INFO] [stderr] Downloaded blake2b_simd v0.5.8 [INFO] [stderr] Downloaded rust-argon2 v0.5.1 [INFO] [stderr] Downloaded arrayvec v0.4.11 [INFO] [stderr] Downloaded syn v0.15.44 [INFO] [stderr] Downloaded nix v0.14.1 [INFO] [stderr] Downloaded crossbeam-utils v0.6.6 [INFO] [stderr] Downloaded memchr v2.2.1 [INFO] [stderr] Downloaded cc v1.0.45 [INFO] [stderr] Downloaded redox_users v0.3.1 [INFO] [stderr] Downloaded log v0.4.8 [INFO] [stderr] Downloaded libc v0.2.62 [INFO] [stderr] Downloaded backtrace-sys v0.1.31 [INFO] [stderr] Downloaded rustyline v5.0.3 [INFO] [stderr] Downloaded dirs-sys v0.3.4 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9d821ccf9a2208e6c55cf2882b4d56aed3fe09db3d4c5e2e645b13564982547e [INFO] running `Command { std: "docker" "start" "-a" "9d821ccf9a2208e6c55cf2882b4d56aed3fe09db3d4c5e2e645b13564982547e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9d821ccf9a2208e6c55cf2882b4d56aed3fe09db3d4c5e2e645b13564982547e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d821ccf9a2208e6c55cf2882b4d56aed3fe09db3d4c5e2e645b13564982547e", kill_on_drop: false }` [INFO] [stdout] 9d821ccf9a2208e6c55cf2882b4d56aed3fe09db3d4c5e2e645b13564982547e [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fdfbd0e64ae1aee224fe0cff8f8e01c131c9c465990d5fb439f44407de87a25a [INFO] running `Command { std: "docker" "start" "-a" "fdfbd0e64ae1aee224fe0cff8f8e01c131c9c465990d5fb439f44407de87a25a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling bitflags v1.2.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking utf8parse v0.1.1 [INFO] [stderr] Checking unicode-segmentation v1.3.0 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking rustyline v5.0.3 [INFO] [stderr] Checking monkey-lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Compiler` [INFO] [stdout] --> src/compiler/mod.rs:5:30 [INFO] [stdout] | [INFO] [stdout] 5 | pub use compiler::{ByteCode, Compiler}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [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 { [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: associated function `new` is never used [INFO] [stdout] --> src/compiler/compiler.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 17 | impl ByteCode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 18 | fn new() -> Self { [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: multiple associated items are never used [INFO] [stdout] --> src/compiler/compiler.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 31 | impl Compiler { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 32 | pub fn from_source(input: &str) -> ByteCode { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn compile_statements(&mut self, ast: Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | fn compile_expression(&mut self, expr: Expression) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 147 | fn add_constant(&mut self, object: Object) -> u16 { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 153 | fn add_instruction(&mut self, op_code: OpCode) -> u16 { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 161 | fn is_last_instruction_pop(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 165 | fn remove_last_pop(&mut self) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [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: associated function `new` is never used [INFO] [stdout] --> src/compiler/symbol_table.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Symbol { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 9 | pub fn new(index: u16, scope: String) -> Self { [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 items `new`, `define`, and `resolve` are never used [INFO] [stdout] --> src/compiler/symbol_table.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 19 | impl SymbolTable { [INFO] [stdout] | ---------------- associated items in this implementation [INFO] [stdout] 20 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 27 | pub fn define(&mut self, name: String, scope: String) -> u16 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | pub fn resolve(&self, name: String) -> Option { [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 items `new`, `run`, `push`, `pop`, and `print_stack` are never used [INFO] [stdout] --> src/vm.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 18 | impl Vm { [INFO] [stdout] | ------- associated items in this implementation [INFO] [stdout] 19 | fn new(bytecode: ByteCode) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | fn run(&mut self) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 195 | fn push(&mut self, obj: Object) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 204 | fn pop(&mut self) -> Object { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 210 | fn print_stack(&self, num: usize) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [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] 18 | impl Vm { [INFO] [stdout] | ------- method in this implementation [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 `dev` profile [unoptimized + debuginfo] target(s) in 2.04s [INFO] running `Command { std: "docker" "inspect" "fdfbd0e64ae1aee224fe0cff8f8e01c131c9c465990d5fb439f44407de87a25a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fdfbd0e64ae1aee224fe0cff8f8e01c131c9c465990d5fb439f44407de87a25a", kill_on_drop: false }` [INFO] [stdout] fdfbd0e64ae1aee224fe0cff8f8e01c131c9c465990d5fb439f44407de87a25a