[INFO] updating cached repository https://github.com/yjhmelody/lua-rs
[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] b2a0cb41ad5d46bbf47b0b89d914bfdde613fe97
[INFO] checking yjhmelody/lua-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyjhmelody%2Flua-rs" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yjhmelody/lua-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/yjhmelody/lua-rs
[INFO] finished tweaking git repo https://github.com/yjhmelody/lua-rs
[INFO] tweaked toml for git repo https://github.com/yjhmelody/lua-rs written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/yjhmelody/lua-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 9289a9f24d65da939632cbd788159521f6d297cd422abcb4b7624bfd13c1372a
[INFO] running `"docker" "start" "-a" "9289a9f24d65da939632cbd788159521f6d297cd422abcb4b7624bfd13c1372a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking lua-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/compiler/parser.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ref`
[INFO] [stderr]   --> src/compiler/codegen.rs:39:17
[INFO] [stderr]    |
[INFO] [stderr] 39 | use std::cell::{Ref, RefCell};
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/compiler/codegen.rs:881:43
[INFO] [stderr]     |
[INFO] [stderr] 881 |         self.emit_jmp(block.last_line, a, (pc_before_block as isize - self.pc() as isize - 1));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/compiler/codegen.rs:909:43
[INFO] [stderr]     |
[INFO] [stderr] 909 |         self.emit_jmp(block.last_line, 0, (pc_before_exp as isize - self.pc() as isize - 1));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs`
[INFO] [stderr]     --> src/compiler/codegen.rs:1498:9
[INFO] [stderr]      |
[INFO] [stderr] 1498 |     use std::fs;
[INFO] [stderr]      |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::binary::encode`
[INFO] [stderr]     --> src/compiler/codegen.rs:1500:9
[INFO] [stderr]      |
[INFO] [stderr] 1500 |     use crate::binary::encode;
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::compiler::lexer::*`
[INFO] [stderr]     --> src/compiler/codegen.rs:1501:9
[INFO] [stderr]      |
[INFO] [stderr] 1501 |     use crate::compiler::lexer::*;
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::compiler::parser::*`
[INFO] [stderr]     --> src/compiler/codegen.rs:1502:9
[INFO] [stderr]      |
[INFO] [stderr] 1502 |     use crate::compiler::parser::*;
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]     --> src/compiler/codegen.rs:1504:9
[INFO] [stderr]      |
[INFO] [stderr] 1504 |     use super::*;
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> src/compiler/parser.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ref`
[INFO] [stderr]   --> src/compiler/codegen.rs:39:17
[INFO] [stderr]    |
[INFO] [stderr] 39 | use std::cell::{Ref, RefCell};
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/compiler/codegen.rs:881:43
[INFO] [stderr]     |
[INFO] [stderr] 881 |         self.emit_jmp(block.last_line, a, (pc_before_block as isize - self.pc() as isize - 1));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/compiler/codegen.rs:909:43
[INFO] [stderr]     |
[INFO] [stderr] 909 |         self.emit_jmp(block.last_line, 0, (pc_before_exp as isize - self.pc() as isize - 1));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `block`
[INFO] [stderr]    --> src/compiler/parser.rs:993:13
[INFO] [stderr]     |
[INFO] [stderr] 993 |         let block = parse_block(&mut lexer).expect("parse error");
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `proto`
[INFO] [stderr]   --> src/binary/mod.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let proto = decode(s);
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_proto`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_encode`
[INFO] [stderr]   --> src/binary/mod.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn test_encode() {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/binary/mod.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fs::write("./tests/test.out", s);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_encode`
[INFO] [stderr]   --> src/binary/mod.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn test_encode() {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/compiler/codegen.rs:1583:9
[INFO] [stderr]      |
[INFO] [stderr] 1583 |         fs::write("./tests/test.out", bytes);
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/binary/mod.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         fs::write("./tests/test.out", s);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
[INFO] running `"docker" "inspect" "9289a9f24d65da939632cbd788159521f6d297cd422abcb4b7624bfd13c1372a"`
[INFO] running `"docker" "rm" "-f" "9289a9f24d65da939632cbd788159521f6d297cd422abcb4b7624bfd13c1372a"`
[INFO] [stdout] 9289a9f24d65da939632cbd788159521f6d297cd422abcb4b7624bfd13c1372a