[INFO] fetching crate lua_engine 0.1.1...
[INFO] checking lua_engine-0.1.1 against master#068609ce766e55d2e7371cd2a86143a6d7e8e2e4 for pr-138952
[INFO] extracting crate lua_engine 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate lua_engine 0.1.1 on toolchain 068609ce766e55d2e7371cd2a86143a6d7e8e2e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lua_engine 0.1.1
[INFO] finished tweaking crates.io crate lua_engine 0.1.1
[INFO] tweaked toml for crates.io crate lua_engine 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lua_engine_macros v0.1.0
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1737e6b4c6572d5e21c29442406d95eaea1702c6e2177fa27fd644fcc06f885f
[INFO] running `Command { std: "docker" "start" "-a" "1737e6b4c6572d5e21c29442406d95eaea1702c6e2177fa27fd644fcc06f885f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1737e6b4c6572d5e21c29442406d95eaea1702c6e2177fa27fd644fcc06f885f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1737e6b4c6572d5e21c29442406d95eaea1702c6e2177fa27fd644fcc06f885f", kill_on_drop: false }`
[INFO] [stdout] 1737e6b4c6572d5e21c29442406d95eaea1702c6e2177fa27fd644fcc06f885f
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 522c2d8c17b0f78a7a5d26dfc684f8f9889cb80f3c2cc30aa121ac713ef7efbc
[INFO] running `Command { std: "docker" "start" "-a" "522c2d8c17b0f78a7a5d26dfc684f8f9889cb80f3c2cc30aa121ac713ef7efbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling lua_engine_macros v0.1.0
[INFO] [stderr]     Checking lua_engine v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/evaluation/interpreter.rs:704:92
[INFO] [stdout]     |
[INFO] [stdout] 704 |     fn get_variable_value<'a>(&'a self, variable: &String, runtime: &'a Runtime) -> Option<&Value> {
[INFO] [stdout]     |                           -- lifetime `'a` declared here                                   ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]    --> src/evaluation/interpreter.rs:704:92
[INFO] [stdout]     |
[INFO] [stdout] 704 |     fn get_variable_value<'a>(&'a self, variable: &String, runtime: &'a Runtime) -> Option<&Value> {
[INFO] [stdout]     |                           -- lifetime `'a` declared here                                   ^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret`
[INFO] [stdout]    --> src/parsing/parser.rs:749:13
[INFO] [stdout]     |
[INFO] [stdout] 749 |         let ret = stmt.as_any().downcast_ref::<ReturnStatement>().unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/parsing/lexer.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 111 | impl Token {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 112 |     // used for testing
[INFO] [stdout] 113 |     fn new(token_type: TokenType, literal: String) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.55s
[INFO] running `Command { std: "docker" "inspect" "522c2d8c17b0f78a7a5d26dfc684f8f9889cb80f3c2cc30aa121ac713ef7efbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522c2d8c17b0f78a7a5d26dfc684f8f9889cb80f3c2cc30aa121ac713ef7efbc", kill_on_drop: false }`
[INFO] [stdout] 522c2d8c17b0f78a7a5d26dfc684f8f9889cb80f3c2cc30aa121ac713ef7efbc