[INFO] updating cached repository https://github.com/babblet/HackCompiler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 13fd1233c33f414e3e7ec6ff0c982b30ed3b467e
[INFO] checking babblet/HackCompiler against try#3ae4c050387df9f7fbb379ee90ce8bf05e566870 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbabblet%2FHackCompiler" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/babblet/HackCompiler on toolchain 3ae4c050387df9f7fbb379ee90ce8bf05e566870
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/babblet/HackCompiler
[INFO] finished tweaking git repo https://github.com/babblet/HackCompiler
[INFO] tweaked toml for git repo https://github.com/babblet/HackCompiler written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/babblet/HackCompiler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3ae4c050387df9f7fbb379ee90ce8bf05e566870" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d64be8cc2f32eecc65b4fbbd7ca1edb11ea126e353f62c3c90ccbd8e0acd79c
[INFO] running `"docker" "start" "-a" "7d64be8cc2f32eecc65b4fbbd7ca1edb11ea126e353f62c3c90ccbd8e0acd79c"`
[INFO] [stderr]     Checking hack_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `file_name`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let file_name = match input.file_name() {
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn new(input: &Path, output: &Path) -> Result<CompilationEngine, String> {
[INFO] [stderr]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input_iterator`
[INFO] [stderr]  --> src/classes/tokenizer.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let input_iterator = input_lines.iter();
[INFO] [stderr]   |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_iterator`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `input_lines`
[INFO] [stderr]  --> src/classes/compilation_engine.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   input_lines: Vec<OsString>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_class`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   fn compile_class() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_class_var_dec`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   fn compile_class_var_dec() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_subroutine_dec`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn compile_subroutine_dec() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_parameter_list`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   fn compile_parameter_list() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_subroutine_body`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:39:3
[INFO] [stderr]    |
[INFO] [stderr] 39 |   fn compile_subroutine_body() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_var_dec`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   fn compile_var_dec() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_statements`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:41:3
[INFO] [stderr]    |
[INFO] [stderr] 41 |   fn compile_statements() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_let`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   fn compile_let() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_if`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:43:3
[INFO] [stderr]    |
[INFO] [stderr] 43 |   fn compile_if () {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_while`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:44:3
[INFO] [stderr]    |
[INFO] [stderr] 44 |   fn compile_while () {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_do`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |   fn compile_do() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_return`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   fn compile_return() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_expression`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |   fn compile_expression() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_term`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   fn compile_term() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_expression_list`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:49:3
[INFO] [stderr]    |
[INFO] [stderr] 49 |   fn compile_expression_list() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_name`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let file_name = match input.file_name() {
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 |   pub fn new(input: &Path, output: &Path) -> Result<CompilationEngine, String> {
[INFO] [stderr]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input_iterator`
[INFO] [stderr]  --> src/classes/tokenizer.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let input_iterator = input_lines.iter();
[INFO] [stderr]   |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_input_iterator`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `input_lines`
[INFO] [stderr]  --> src/classes/compilation_engine.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 7 |   input_lines: Vec<OsString>,
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_class`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:35:3
[INFO] [stderr]    |
[INFO] [stderr] 35 |   fn compile_class() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_class_var_dec`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:36:3
[INFO] [stderr]    |
[INFO] [stderr] 36 |   fn compile_class_var_dec() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_subroutine_dec`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 |   fn compile_subroutine_dec() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_parameter_list`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:38:3
[INFO] [stderr]    |
[INFO] [stderr] 38 |   fn compile_parameter_list() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_subroutine_body`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:39:3
[INFO] [stderr]    |
[INFO] [stderr] 39 |   fn compile_subroutine_body() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_var_dec`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:40:3
[INFO] [stderr]    |
[INFO] [stderr] 40 |   fn compile_var_dec() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_statements`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:41:3
[INFO] [stderr]    |
[INFO] [stderr] 41 |   fn compile_statements() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_let`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:42:3
[INFO] [stderr]    |
[INFO] [stderr] 42 |   fn compile_let() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_if`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:43:3
[INFO] [stderr]    |
[INFO] [stderr] 43 |   fn compile_if () {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_while`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:44:3
[INFO] [stderr]    |
[INFO] [stderr] 44 |   fn compile_while () {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_do`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 |   fn compile_do() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_return`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   fn compile_return() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_expression`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:47:3
[INFO] [stderr]    |
[INFO] [stderr] 47 |   fn compile_expression() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_term`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:48:3
[INFO] [stderr]    |
[INFO] [stderr] 48 |   fn compile_term() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `compile_expression_list`
[INFO] [stderr]   --> src/classes/compilation_engine.rs:49:3
[INFO] [stderr]    |
[INFO] [stderr] 49 |   fn compile_expression_list() {}
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hack_compiler::classes::analyzer::SyntaxAnalyzer`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use hack_compiler::classes::analyzer::SyntaxAnalyzer;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hack_compiler::classes::analyzer::SyntaxAnalyzer`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use hack_compiler::classes::analyzer::SyntaxAnalyzer;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hack_compiler::classes::analyzer::SyntaxAnalyzer`
[INFO] [stderr]  --> tests/analyzer/mod.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 |   use hack_compiler::classes::analyzer::SyntaxAnalyzer;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hack_compiler::classes::arguments::Arguments`
[INFO] [stderr]  --> tests/arguments/mod.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 |   use hack_compiler::classes::arguments::Arguments;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hack_compiler::classes::compilation_engine::CompilationEngine`
[INFO] [stderr]  --> tests/compilation_engine/mod.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 |   use hack_compiler::classes::compilation_engine::CompilationEngine;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hack_compiler::classes::parser::Parser`
[INFO] [stderr]  --> tests/parser/mod.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 |   use hack_compiler::classes::parser::Parser;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hack_compiler::classes::tokenizer::Tokenizer`
[INFO] [stderr]  --> tests/tokenizer/mod.rs:3:7
[INFO] [stderr]   |
[INFO] [stderr] 3 |   use hack_compiler::classes::tokenizer::Tokenizer;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]  --> src/main.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 |   let arguments: Arguments = match Arguments::new(environment_arguments) {
[INFO] [stderr]   |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arguments`
[INFO] [stderr]  --> src/main.rs:7:7
[INFO] [stderr]   |
[INFO] [stderr] 7 |   let arguments: Arguments = match Arguments::new(environment_arguments) {
[INFO] [stderr]   |       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_arguments`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "7d64be8cc2f32eecc65b4fbbd7ca1edb11ea126e353f62c3c90ccbd8e0acd79c"`
[INFO] running `"docker" "rm" "-f" "7d64be8cc2f32eecc65b4fbbd7ca1edb11ea126e353f62c3c90ccbd8e0acd79c"`
[INFO] [stdout] 7d64be8cc2f32eecc65b4fbbd7ca1edb11ea126e353f62c3c90ccbd8e0acd79c