[INFO] cloning repository https://github.com/jst-r/lof-lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jst-r/lof-lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjst-r%2Flof-lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjst-r%2Flof-lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4541a0150e12d339c234719d6eca8385eb2e6334
[INFO] checking jst-r/lof-lang against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjst-r%2Flof-lang" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jst-r/lof-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/jst-r/lof-lang
[INFO] finished tweaking git repo https://github.com/jst-r/lof-lang
[INFO] tweaked toml for git repo https://github.com/jst-r/lof-lang written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jst-r/lof-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6e55958523362633f715357be2528e6ae7fed74b67e6ae15a4981459c8cb6c72
[INFO] running `Command { std: "docker" "start" "-a" "6e55958523362633f715357be2528e6ae7fed74b67e6ae15a4981459c8cb6c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e55958523362633f715357be2528e6ae7fed74b67e6ae15a4981459c8cb6c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e55958523362633f715357be2528e6ae7fed74b67e6ae15a4981459c8cb6c72", kill_on_drop: false }`
[INFO] [stdout] 6e55958523362633f715357be2528e6ae7fed74b67e6ae15a4981459c8cb6c72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 10bd53337fed914920e2fc5f8da5070f1c2f197bfd8914c490ac844b9f629cc6
[INFO] running `Command { std: "docker" "start" "-a" "10bd53337fed914920e2fc5f8da5070f1c2f197bfd8914c490ac844b9f629cc6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling indexmap v2.2.3
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling toml_edit v0.21.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling proc-macro-crate v3.1.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.2
[INFO] [stderr]     Checking num_enum v0.7.2
[INFO] [stderr]     Checking lof-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `compiler::scanner::Scanner` and `virtual_machine::chunk::disassemble_operation`
[INFO] [stdout]    --> src/compiler/compiler.rs:215:17
[INFO] [stdout]     |
[INFO] [stdout] 215 |     use crate::{compiler::scanner::Scanner, virtual_machine::chunk::disassemble_operation};
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Scanner`
[INFO] [stdout]    --> src/compiler/scanner.rs:297:17
[INFO] [stdout]     |
[INFO] [stdout] 297 |     use super::{Scanner, ScannerResult};
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `virtual_machine::chunk::disassemble_operation`
[INFO] [stdout]    --> src/compiler/compiler.rs:215:45
[INFO] [stdout]     |
[INFO] [stdout] 215 |     use crate::{compiler::scanner::Scanner, virtual_machine::chunk::disassemble_operation};
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/compiler/compiler.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 109 | /         loop {
[INFO] [stdout] 110 | |             let infix_rule = ParseRule::from_token(&self.peek()?).infix.unwrap();
[INFO] [stdout] 111 | |             infix_rule(self)?;
[INFO] [stdout] 112 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 113 |
[INFO] [stdout] 114 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/compiler/compiler.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 109 | /         loop {
[INFO] [stdout] 110 | |             let infix_rule = ParseRule::from_token(&self.peek()?).infix.unwrap();
[INFO] [stdout] 111 | |             infix_rule(self)?;
[INFO] [stdout] 112 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 113 |
[INFO] [stdout] 114 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/compiler/compiler.rs:98:27
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn consume(&mut self, kind: TokenKind) {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precedence`
[INFO] [stdout]    --> src/compiler/compiler.rs:102:36
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn parse_precedence(&mut self, precedence: Precedence) -> Result<(), CompilerError> {
[INFO] [stdout]     |                                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precedence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/compiler/compiler.rs:168:32
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn error_at_current(&self, err: ScannerError) {
[INFO] [stdout]     |                                ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> src/compiler/compiler.rs:98:27
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn consume(&mut self, kind: TokenKind) {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `precedence`
[INFO] [stdout]    --> src/compiler/compiler.rs:102:36
[INFO] [stdout]     |
[INFO] [stdout] 102 |     fn parse_precedence(&mut self, precedence: Precedence) -> Result<(), CompilerError> {
[INFO] [stdout]     |                                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_precedence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/compiler/compiler.rs:168:32
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn error_at_current(&self, err: ScannerError) {
[INFO] [stdout]     |                                ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]   --> src/compiler/scanner.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Scanner<'source> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 53 |     tokens: Vec<ScannerResult<'source>>,
[INFO] [stdout] 54 |     source: &'source str,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_kind` is never used
[INFO] [stdout]    --> src/compiler/scanner.rs:299:8
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn assert_kind(token: ScannerResult, kind: TokenKind) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_eof` is never used
[INFO] [stdout]    --> src/compiler/scanner.rs:303:8
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn assert_eof(token: ScannerResult) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/compiler/compiler.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         dbg!(self.peek());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]   --> src/compiler/scanner.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct Scanner<'source> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 53 |     tokens: Vec<ScannerResult<'source>>,
[INFO] [stdout] 54 |     source: &'source str,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/compiler/compiler.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         dbg!(self.peek());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `chunk::Chunk`, `op_code::OpCode`, `token::TokenKind`, and `vm::VM`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |         token::TokenKind,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     },
[INFO] [stdout] 6 |     virtual_machine::{chunk::Chunk, op_code::OpCode, vm::VM},
[INFO] [stdout]   |                       ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `chunk::Chunk`, `op_code::OpCode`, `token::TokenKind`, and `vm::VM`
[INFO] [stdout]  --> src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |         token::TokenKind,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     },
[INFO] [stdout] 6 |     virtual_machine::{chunk::Chunk, op_code::OpCode, vm::VM},
[INFO] [stdout]   |                       ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `Command { std: "docker" "inspect" "10bd53337fed914920e2fc5f8da5070f1c2f197bfd8914c490ac844b9f629cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10bd53337fed914920e2fc5f8da5070f1c2f197bfd8914c490ac844b9f629cc6", kill_on_drop: false }`
[INFO] [stdout] 10bd53337fed914920e2fc5f8da5070f1c2f197bfd8914c490ac844b9f629cc6